Best Invoicing Software for Plumbers: 11 Tools Ranked for 2026

A plumbing invoice has to do three things a freelancer invoice never does. It has to print, email, or text-link from the truck before the homeowner walks you to the door. It has to carry a flat-rate task price from a pricebook (not a typed-in "labor: 2 hours") so two different techs quote the same toilet reset at the same number. And it has to either charge a card on the tailgate or queue an ACH debit that clears before you leave for the next call. If your tool cannot do all three, you are losing 3 to 9 days of collections per invoice and rebuilding totals in a calculator app while the customer watches.

We evaluated 11 invoicing platforms that plumbing contractors actually use - from $0 Square Invoices to $398/tech/mo ServiceTitan. Every price below was checked against vendor pricing pages in April 2026. Tools without on-site payment acceptance or recurring service-plan billing are flagged.

Quick Comparison: Plumbing Invoicing Platforms at a Glance

Prices above reflect starting tiers on vendor pricing pages as of April 2026. ServiceTitan does not publish pricing publicly; figures reflect practitioner reports and should be confirmed during a sales call.

What Separates Plumbing Invoicing From Generic Invoicing

Before you pick a tool, understand the six workflows generic invoice apps break on when a plumber uses them.

1. On-site payment acceptance. The gap between "I'll mail you a check" and a card tapped at the door is 9 days of collections and a 15% collections risk. Your tool needs to take card (Apple Pay / Google Pay / tap-to-pay), ACH debit from the truck, and - for commercial customers - email a net-15 invoice with an online pay link. ServiceTitan, Housecall Pro, Jobber, Square, and QuickBooks Payments all handle on-truck card. Invoice Simple and Zoho Invoice require the customer to click through to a payment page.

2. Flat-rate pricebook integration. Residential plumbing runs on flat-rate pricing - a toilet reset is {verified rate}, a garbage disposal swap is a different {verified rate}, a hydro-jet is a third number. If Tech A quotes $225 and Tech B quotes $310 for the same job, your reviews suffer and your margins vanish. ServiceTitan Pricebook Pro, Profit Rhino (integrated with Jobber, Housecall Pro, and FieldEdge), and built-in pricebooks (Workiz, FieldEdge, Service Fusion) keep quotes consistent. Generic invoice tools do not.

3. Parts markup and materials pass-through. Plumbing invoices itemize labor and parts separately, often with a 40-60% parts markup and tax applied only to materials (tax rules vary by state). Your tool needs line-item tax flags, markup rules that stick across techs, and a way to pull parts from an inventory or supply-house catalog.

4. Recurring service memberships. A plumbing service plan (annual whole-home inspection, semi-annual water heater flush, priority-booking membership) at $180-$300/year is the highest-LTV product a residential shop sells. You need recurring invoicing that supports monthly, quarterly, and annual cadences, renewal reminders, and card-on-file storage. ServiceTitan, Housecall Pro, Jobber, Agiled, Zoho Invoice, FreshBooks, and Square all support recurring billing. Invoice Simple and Joist do not.

5. Labor rates with overtime and after-hours rules. A 2 a.m. emergency call bills at 1.5x or 2x your standard rate. A Sunday backflow callback triggers a service-fee surcharge. Flat-rate pricebooks can encode these (emergency task codes priced separately). Time-based billing tools like FreshBooks handle OT multipliers natively. Square Invoices and Invoice Simple do not.

6. QuickBooks sync (or a defensible export). Your bookkeeper will not switch accounting systems because you like a new field app. QuickBooks Online sync is the de facto standard - Jobber, Housecall Pro, Workiz, ServiceTitan, Service Fusion, FieldEdge all sync two-way with QBO, and most support Desktop with some limitations. Agiled exports to QuickBooks-compatible CSV. Square, Zoho Invoice, and Wave require one-way imports or separate Zoho Books / Wave Accounting.

If you run a one-truck handyman plumbing operation doing 10-20 calls a week, you can get away with Square Invoices or Invoice Simple. The moment you add a second truck, take on any commercial work, or start selling service memberships, the list narrows fast.

1. Agiled - Best All-in-One for Small Plumbing Shops

Agiled is the only tool on this list that bundles CRM, invoicing with recurring billing, proposals and contracts with e-signatures, appointment scheduling, a client portal, and workflow automation into a single platform. For plumbing owner-operators and 1-to-5-truck shops, it replaces the tangle of separate tools (Jobber for dispatch + DocuSign for contracts + Calendly for scheduling + QuickBooks for invoicing) with one system.

Pricing: Free plan covers CRM basics, 2 billable clients, and basic invoicing. Pro at $25/month (billed annually) adds unlimited contacts, unlimited projects, and up to 3 users. Premium at $49/month adds automations, proposals, contracts, e-signatures, and up to 7 users. Payment processing runs through Stripe or PayPal at standard card rates (2.9% + $0.30 U.S.).

Why it works for plumbing shops:

• Field invoicing - Create and email or text an invoice from the truck, accept card or ACH payment via a Stripe or PayPal link, and the invoice status updates in real time through the finance module.
• Flat-rate line-item library - Save common plumbing tasks (toilet reset, water heater R&R, drain snake, hydro-jet, PRV replacement, backflow test, emergency service-call fee) with fixed pricing so every tech quotes the same way.
• Parts markup and tax rules - Line-item tax flags so labor stays non-taxed (in labor-non-taxable states) and materials carry the right local rate. Markup rules apply to every parts line automatically.
• Recurring service-plan billing - Annual or monthly service-membership invoicing with renewal reminders, priority-booking flags on the customer record, and card-on-file storage via Stripe.
• Proposals and contracts with e-signature - Good/Better/Best water heater replacement quotes, whole-home repipe proposals, and annual service-plan agreements through proposals and contracts, all signed on the homeowner's phone at the kitchen table.
• Branded client portal - Homeowners or property managers log in to see service history, approve proposals, download invoices, and pay past-due balances.
• Scheduling - Online booking page for non-emergency service calls with calendar sync (Google, Outlook) through appointment scheduling.
• Workflow automation - "Send 6-month water-heater flush reminder 180 days after install," "flag deal as Unpaid if invoice is 15 days past due and trigger text reminder," "auto-create annual backflow test work order 11 months after the last visit."
• AI agents - Draft follow-up emails, service summary notes, and estimate descriptions from tech field notes.

Where Agiled falls short: No drag-and-drop dispatch board with live GPS fleet tracking like ServiceTitan or Workiz. No built-in Profit Rhino pricebook integration (you build your flat-rate task library manually from the line-item editor). QuickBooks sync is CSV-export-based rather than real-time two-way. If you run 8+ trucks and need a dispatcher visually shuffling emergency calls across a fleet map, a dedicated field-service tool is the better fit.

Best for: Plumbing owner-operators, 1-to-5-truck residential and light-commercial shops, and contractors who want invoicing, recurring service-plan billing, CRM, proposals, and a client portal in one tool without paying $200-$400/month for dispatch features they only partially use.

Tradeoff: You trade deep field-service dispatch (GPS fleet map, drag-and-drop scheduling with skill filters) for breadth - invoicing, CRM, contracts, scheduling, portal - at a fraction of the price. For shops running a whiteboard, a Google Calendar, and QuickBooks today, Agiled is a clear upgrade. For shops already running Jobber or Housecall Pro with eight trucks, it is a sideways move.

Start Free With Agiled

Related: Best CRM for plumbers, best CRM for roofing contractors, best CRM for cleaning business.

2. Jobber - Best Dedicated Field-Service Invoicing for Small Shops

Jobber is the most widely recommended field-service platform in the under-10-tech bracket. Its invoicing is fully tied to work orders - a tech closes a job on the mobile app, the invoice drafts automatically from the quote + parts used + labor captured, and the customer gets a text link with a Jobber Payments pay-now button.

Pricing (billed annually): Core at $29/month (1 user), Connect at $119/month (5 users), Grow at $199/month (10 users), Plus at $349/month (15+ users). 14-day free trial. Jobber Payments charges standard card rates; ACH is available on most plans.

What works for plumbing:

• Quote-to-invoice automation pulls from the approved estimate (Good/Better/Best water heater tiers, repipe scope, drain clearing package)
• Recurring invoicing for service memberships and quarterly drain jetting contracts
• Client hub portal with saved payment method, payment history, and dispatchable service history
• Two-way QuickBooks Online sync (Desktop available via third-party connector on Grow and up)
• Mobile app with offline mode that queues invoices, photos, and signatures from a basement or slab crawl until signal returns
• Profit Rhino pricebook integration available as a paid add-on

Where it falls short: Per-seat pricing climbs fast past 10 techs (Plus at $349/mo for 15 users). Flat-rate pricebook is not native - you pay extra for Profit Rhino. Commercial invoicing features (multi-site equipment tracking, project-level billing on a strip-mall build-out) are lighter than ServiceTitan or Service Fusion.

Best for: Residential and light-commercial plumbing shops between 1 and 15 techs who want a mature dispatch board, a mobile app that survives poor cell signal, and invoicing that drafts itself from the work order.

3. Housecall Pro - Best for Residential Plumbing With Marketing Bundled

Housecall Pro is Jobber's main competitor in residential trades. Where Jobber focuses on dispatch fundamentals, Housecall Pro bundles marketing (postcards, review automation, email campaigns) and consumer financing (Wisetack for water heater replacements and repipes) into the same platform.

Pricing (billed annually): Basic at $59/month (1 user), Essentials at $149/month (up to 5 users), MAX at $299/month with per-seat add-ons beyond. 14-day free trial.

Invoicing strengths:

• On-truck invoicing with HCP Payments (card, ACH, Apple Pay / Google Pay), standard card rates
• Native flat-rate pricebook with Profit Rhino integration option
• Service agreements and memberships with auto-billing and renewal reminders
• Wisetack consumer financing built into quotes - homeowners can approve a $4,000 water heater replacement with a 24-month payment plan on the spot
• Postcard marketing and automated review-request workflow tied to invoice payment
• Two-way QuickBooks Online and Desktop sync

Where it falls short: Add-ons pile up fast. Marketing automation, consumer financing fees, and advanced reporting can push the real monthly cost well above the headline price. Offline mode has improved but historically has been less reliable than Jobber's in deep basements.

Best for: Residential plumbing contractors with 2 to 10 techs who want marketing, dispatch, invoicing, and consumer financing under one roof - especially shops where water heater replacements and whole-home repipes are a meaningful revenue mix.

4. QuickBooks Online - Best for Shops Whose Accounting Already Lives in QuickBooks

QuickBooks Online is not purpose-built for plumbers, but it is where almost every CPA and bookkeeper wants your money to land. For a plumbing shop that prefers the CPA's ecosystem, QuickBooks Online plus a mobile invoice workflow is a defensible choice.

Pricing: Simple Start at $38/month, Essentials at $75/month, Plus at $115/month, Advanced at $275/month (promotional discounts common for the first three months). QuickBooks Payments charges standard card rates and 1% ACH (capped at $10).

Invoicing strengths:

• Full progress invoicing against estimates for bigger jobs (repipes, commercial retrofits)
• Recurring invoicing for service memberships
• QuickBooks Payments with tap-to-pay via the QuickBooks GoPayment mobile app
• Sales tax by jurisdiction handled natively - important when you have one shop billing in three different counties
• 1099 tracking for any subs you use
• Massive add-on ecosystem including plumbing-specific pricebook tools and field-service connectors

Where it falls short: No dispatch board, no flat-rate pricebook without a third-party add-on, no native field work orders. The "progress invoicing" is not AIA - a commercial GC on a mechanical retrofit may reject it. You will either add Jobber, Housecall Pro, or a pricebook tool on top, or accept that your invoicing stays office-based.

Best for: 1-to-3-truck plumbing shops whose CPA already uses QuickBooks Online and who prefer a strong accounting backbone over purpose-built field features. Commercial plumbers billing new construction and property managers on net-30 terms also fit here.

5. FreshBooks - Best for Handyman Plumbers on Time and Materials

FreshBooks is a generalist invoicing and time-tracking tool that fits handyman plumbers, solo service plumbers, and contractors who bill T&M rather than flat-rate.

Pricing: Lite at $21/month (5 billable clients), Plus at $38/month (50 billable clients), Premium at $65/month (unlimited clients), Select custom. All with a 30-day free trial. Payment processing through Stripe at 2.9% + $0.30.

What works for plumbing:

• Fast invoice creation from the mobile app
• Time tracking with hourly rates per tech - useful if you bill T&M on rough-ins or sub work to a GC
• Expense tracking (parts, truck fuel, supply-house runs)
• Proposals module for repipe quotes
• Recurring invoices for service-plan billing
• Late fee automation with configurable grace periods
• Strong iOS and Android mobile apps

Where it falls short: No retainage, no flat-rate pricebook integration, no dispatch board, no work-order workflow. If you ever land a commercial job or expand past two techs, you will outgrow FreshBooks within a quarter.

Best for: Solo plumbers and 1-to-2-person shops billing T&M residential service work, break-fix jobs, and small property management portfolios.

6. Square Invoices - Best Free Option for Solo Plumbers Taking Tap-to-Pay

Square Invoices is free to send unlimited invoices. Payment processing is where Square makes its money - and for a solo plumber who wants a card reader (or iPhone tap-to-pay) on the truck, it is the fastest path from "job done" to "paid."

Pricing: Free tier sends unlimited invoices with standard payment rates (2.9% + $0.30 per card-not-present invoice, 2.6% + $0.15 tap / insert / swipe via a Square Reader or Tap to Pay on iPhone / Android, 1% ACH capped at $10). Square Invoices Plus at $20/month adds custom fields, multi-package estimates, and automated recurring series with built-in payment milestones.

Plumbing strengths:

• Tap to Pay on iPhone or Android with no extra hardware - every tech's phone becomes a card reader
• Unlimited invoices on the free plan
• Item library for flat-rate tasks (saved prices for common repairs)
• Recurring invoices for monthly service plans
• Automated reminders for unpaid invoices
• Simple 1099 / tax export for Schedule C filers

Where it falls short: No dispatch board, no work-order workflow, no CRM, no flat-rate pricebook in the ServiceTitan / Profit Rhino sense (it is an item library, not a dynamic pricebook). QuickBooks sync is one-way only. Card-not-present rates (2.9% + $0.30) are higher than some competitors - for a shop that does most of its invoicing through emailed links rather than tap-at-the-door, processing fees add up fast.

Best for: Solo plumbers, 1-to-2-truck shops, and handyman plumbers who want a zero-subscription tool that takes card and ACH on the truck and handles a handful of recurring service plans.

7. Invoice Simple - Best for Cash-Flow-Tight Solo Plumbers

Invoice Simple is a mobile-first invoice and estimate app built for trades. It sends a PDF invoice or a pay-online link in under a minute and costs almost nothing.

Pricing: Free tier allows a limited number of invoices per month. Starter at $6.99/month and Plus at $12.99/month (billed monthly) unlock unlimited invoices, higher estimate limits, and online payments via Stripe or PayPal. Annual billing available.

Plumbing strengths:

• Generate and send a PDF or pay-link invoice from the truck in under 60 seconds
• Saved item list for common plumbing tasks
• Signature capture on estimates
• Photo attachments (before/after, water heater nameplate, meter readings)
• Stripe and PayPal checkout links for online payments

Where it falls short: No recurring invoices, no dispatch, no CRM, no work-order flow, no QuickBooks sync. Strictly a one-shot invoice and estimate generator. The moment you need to bill a service-membership customer, you outgrow it.

Best for: Solo plumbers and apprentices going out on their own who need a polished-looking mobile invoice and a way to take online payments without a subscription while the shop gets off the ground.

8. Joist - Best Free Mobile Estimating and Invoicing

Joist is a mobile-first free app aimed at solo trades who quote on the jobsite and invoice from the phone. For a plumber who estimates in the customer's living room and emails the invoice before leaving the driveway, Joist is fast.

Pricing: Free plan available. Pro at $13/month and Elite at $26/month unlock recurring features, signature capture on the free tier, and deeper QuickBooks sync on the paid plans. Joist Payments charges standard card rates.

Plumbing strengths:

• Fast mobile estimate-to-invoice flow with photos and signature
• Deposit collection at quote acceptance
• QuickBooks sync on paid tiers
• Client history tied to the property address

Where it falls short: No recurring invoicing, no service-plan billing, no dispatch board, no flat-rate pricebook, no CRM layer. Strictly simple one-off residential jobs. Joist is a quoting and invoicing tool, not a business management platform.

Best for: Solo plumbers, side-hustle plumbers, and apprentices who need a fast, free, estimate-to-invoice flow on a phone.

9. Workiz - Best for Plumbing Shops With Heavy Inbound Call Volume

Workiz differentiates on its built-in phone system. Inbound calls pop the customer record, log duration and recording, and convert to a booked job in a click - valuable for a plumbing dispatcher handling 40 to 120 calls a day in storm season or after a cold snap.

Pricing: Lite free for up to 2 users, Kickstart at $187/month (3 users), Standard at $229/month (5 users), Pro at $270/month (5 users), Ultimate custom-quoted. Additional users typically $46 to $54 per user per month.

Invoicing strengths:

• Native invoicing tied to the job and phone-call record
• Workiz Pay for on-truck card and ACH
• Flat-rate pricebook support
• Recurring service-plan billing
• Online booking widget for the website
• Two-way QuickBooks Online sync
• Route optimization and dispatch board

Where it falls short: Pricing climbs quickly at scale. Some advanced membership workflows (dynamic priority-booking logic, auto-renewal branching) are less refined than ServiceTitan or Housecall Pro. Mobile app is capable but less polished than Jobber's.

Best for: Residential plumbing shops where most leads arrive by phone (Google Local Services, yard signs, long-standing brand reputation) and the call-to-booked-job workflow needs to be tightly integrated.

10. ServiceTitan - Best Enterprise Invoicing for $3M+ Plumbing Shops

ServiceTitan is the enterprise standard for residential plumbing, HVAC, and electrical shops in the 10-to-300-tech range. Its invoicing sits inside a full CSR, dispatch, pricebook, and marketing platform.

Pricing: ServiceTitan does not publish pricing. Practitioner reports in 2026 place per-tech cost in the $245-$398/month range (rising with add-ons and Pricebook Pro), plus a one-time implementation fee commonly between $5,000 and $15,000 and occasionally higher for larger shops.

Invoicing strengths:

• Pricebook Pro with dynamic capacity-based pricing (emergency surcharge logic adjusts when the board is 90% full)
• Memberships module for service-plan billing with priority-booking flags and auto-renewal
• ServiceTitan Payments with on-truck card, ACH, and consumer financing
• Full AIA-style progress billing available for commercial jobs
• Marketing ROI tied to invoice revenue per campaign source
• Deep inventory management across trucks and warehouses

Where it falls short: The price. The learning curve (implementation commonly takes 90-120 days). Overkill if your shop runs fewer than 8 techs and does not have a dedicated CSR team using call-scoring features.

Best for: Residential plumbing shops doing $3M+ in annual revenue with a CSR team, a general manager trained on the KPI dashboards, and the budget to pay six figures annually for software.

11. Zoho Invoice - Best Free Invoicing With Multi-Currency

Zoho Invoice is genuinely free. No user cap, no invoice cap, no aggressive upsell to the paid tier. For a bootstrapped plumber - especially one with a side commercial client in Canada or Mexico - it is the most feature-dense free tool on this list.

Pricing: Free forever for unlimited invoices, contacts, and users. Zoho Books (the full accounting tool) starts at $20/month if you need double-entry accounting, bank feeds, and deeper reporting.

Invoicing strengths:

• Unlimited invoices and unlimited customers free
• Multi-currency billing (useful if you do any work in border states or for international property managers)
• Recurring invoices for service plans
• Payment reminders and late fees
• Client portal for commercial customers
• Stripe, Authorize.net, and PayPal payment processing
• Zoho Books upgrade path for full accounting without switching tools

Where it falls short: No dispatch, no field-service mobile app purpose-built for plumbers, no flat-rate pricebook beyond an item library, no service-plan membership workflow with priority-booking logic. QuickBooks sync requires Zoho Books and a third-party connector. Best used as a pure invoicing layer on top of whatever dispatch tool you already run.

Best for: Solo plumbers and 1-to-2-truck shops who want zero-subscription invoicing with multi-currency and recurring billing and who do not need dispatch or a flat-rate pricebook.

Cost-Per-Invoice Analysis: What Three Years Actually Costs

Subscription cost is the sticker price. Payment processing is the hidden cost. For a plumbing shop that sends 1,800 invoices per year (50 per week per tech, 3 techs, 12 months), the real annual cost is the subscription plus processing fees on what you actually collect.

Assumptions: 3-tech residential plumbing shop, 1,800 invoices/year, average invoice $385, 70% paid by card (2.9% + $0.30), 25% paid by ACH (1% capped at $10), 5% paid by check. Annual billing where available.

Three takeaways from the math:

First, processing fees dwarf subscription cost at every tier below ServiceTitan. If you collect $693,000/year in invoice revenue on cards and ACH, you are paying roughly $14,000-$15,000 in processor fees whether your invoice software costs $0 or $2,000. The fight over "which tool is cheapest" is really a fight over the 3-15% difference in subscription cost, not the main line.

Second, ACH acceptance is the biggest lever for a commercial-heavy plumbing shop. Moving a commercial net-15 invoice from card (2.9% + $0.30) to ACH (1% capped at $10) on a $2,500 commercial service call saves $62.50 per invoice. If 20% of your invoice volume is commercial, pushing those customers to ACH saves $4,000-$6,000 per year.

Third, Agiled Premium's total cost-per-invoice at roughly $8.36 is within 30 cents of free Zoho Invoice (~$8.03) - and unlike Zoho, it includes CRM, contracts, proposals, scheduling, and a client portal. The $588/year subscription buys you four tools you would otherwise pay $800-$1,500/year for separately.

Original Field Test: On-Truck Payment Collection Speed

We timed the invoice-to-paid cycle across three tools running the same hypothetical service call (a water heater flush billed at $189, customer approves on the spot).

The punchline: for a residential plumbing shop, tap-to-pay at the door beats every other method for cash flow. The 9-14 day gap between "check is in the mail" and "check is deposited" is the single biggest driver of AR aging in small plumbing shops. Any tool that pushes the customer toward card-at-the-door (Square, Jobber, Housecall Pro, Agiled with Stripe) wins on speed of collections even if the subscription costs more.

How to Choose: A Practical Decision Guide

• Solo plumber doing 10-20 calls a week: Square Invoices (free) or Invoice Simple ($6.99-$12.99/mo). You want mobile-first, tap-to-pay, and a PDF the customer can forward to their bookkeeper.
• 1-to-5-truck shop wanting one platform for invoicing + CRM + contracts + scheduling: Agiled (free to $49/mo). Replaces 4-5 separate subscriptions with one bill.
• 1-to-15-truck residential shop that needs a real dispatch board: Jobber ($29-$349/mo) for the dispatch-to-invoice backbone or Housecall Pro ($59-$299/mo) if marketing bundled is important.
• Shop with heavy inbound phone volume (Google LSA, storm season): Workiz ($187+/mo) for the phone-to-invoice integration.
• Shop whose CPA already uses QuickBooks Online: QuickBooks Online Essentials or Plus ($75-$115/mo) plus a field app layered on top.
• $3M+ residential plumbing shop with CSR team: ServiceTitan, period. Nothing else has the capacity-based pricing or KPI dashboards at that scale.
• Bootstrapped shop wanting zero-subscription invoicing with multi-currency: Zoho Invoice (free) plus QuickBooks Online for accounting.

One rule that saves pain: if you ever plan to take a commercial property management contract, pick a tool with real ACH support. Commercial net-15 invoices paid on ACH at 1% vs. card at 2.9% + $0.30 is worth several thousand dollars a year at modest volume.

When an Invoicing Tool Is the Wrong Tool

Not every plumbing shop needs to buy invoicing software. Push back before you sign:

• You run fewer than 3 invoices per week. The apprentice-with-a-side-hustle phase does not justify a $20/month subscription. Use Square Invoices free tier or Zoho Invoice free forever.
• You only sub for one general contractor or mechanical firm. You are billing one entity on their pay-app schedule. Their system tracks you; you need Excel and a bank login.
• You do almost all new construction and zero service work. New-construction plumbing is project-based with progress billing, not field invoicing. QuickBooks Online plus Procore or Agiled's project management fits better than Jobber or Housecall Pro.
• Your shop is 100% cash. Some older plumbing shops still run cash-on-completion with handwritten receipts. The IRS disagrees with this philosophy but the software choice is beside the point - fix the books first, pick a tool second.
• You will not actually open the app. The most expensive tool is the one you subscribe to but never use. If your techs will not adopt a mobile app, Square Invoices free tier and Stripe payment links beat a $200/month tool your team ignores.

Features That Separate Plumbing Invoicing From Generic Invoicing

Flat-rate task library with tech-level consistency. Two techs on different trucks quote the same toilet reset at the same price. Generic invoice tools let you save items but do not enforce pricing across users.

Parts markup and material-only tax. Most plumbing jurisdictions tax materials but not labor. Line-item tax flags are non-negotiable; lumping everything into a single taxable total creates sales-tax reporting errors that compound annually.

Recurring service-plan billing with renewal logic. Annual memberships ($180-$300) and quarterly jetting contracts ($280-$420) need automated invoicing on the anniversary date, a renewal reminder at T-60 days, and a priority-booking flag on the customer record so the dispatcher sees the membership status before quoting an emergency surcharge.

Deposit collection on quote acceptance. A $4,000 water heater replacement warrants a 25-50% deposit captured when the homeowner signs. Tools like Housecall Pro, Jobber, Agiled, and Joist capture deposits at signature; tools like Invoice Simple do not.

Emergency surcharge rules. A 2 a.m. sewer backup bills at 1.5x or 2x standard plus a dispatch fee. Pricebook tools encode this as a separate task code. FreshBooks and time-based tools handle it via overtime multipliers. Square Invoices does not.

Job-based margin visibility. The invoice tells you what you charged. The profitability calculation needs to subtract parts cost, tech labor at true loaded cost (not just hourly wage), and allocated overhead. Jobber, Housecall Pro, FieldEdge, Workiz, and ServiceTitan produce job-profitability reports; Square Invoices and Invoice Simple do not.

The 2026 Reality: Invoicing Is Table Stakes, Collections Is the Product

Every tool on this list can generate an invoice. What separates them in 2026 is the collection rate - the percent of invoices paid within 7 days. For residential plumbing, tap-to-pay at the door pushes that to 85-95%. For commercial, a pay-online link on a net-15 invoice with card-on-file pushes it to 75-85%. Paper invoices mailed on Friday and waiting for a check Monday-Monday sit closer to 55-70% and drop further as the invoice ages.

A $2,500/year subscription that moves your 7-day collection rate from 65% to 85% on $700,000 of invoice volume keeps about $140,000 out of AR aging on a given day. Measured that way, the tool cost is rounding error. Measured the other way - subscription cost alone - you miss the point of why you are buying it.

Frequently Asked Questions

What is the best invoicing software for a solo plumber?

For a solo plumber running 10-30 calls a week, three options cover 95% of cases. Agiled free plan gives you invoicing plus CRM plus scheduling plus a client portal at zero cost. Square Invoices free tier is the fastest path to tap-to-pay at the door with no subscription. Invoice Simple at $6.99-$12.99/month produces a clean PDF invoice and a pay-link in under 60 seconds from a phone. Avoid ServiceTitan, Workiz, and FieldEdge at solo scale - the price does not pay back below 3 techs.

Does QuickBooks work for plumbing invoicing?

Yes for shops that prioritize accounting over field features. QuickBooks Online handles recurring invoicing, QuickBooks Payments takes card and ACH on the truck via the GoPayment app, and sales tax by jurisdiction works natively. What it does not do is drive a dispatch board, enforce a flat-rate pricebook across techs, or produce field work orders. Most plumbing shops running QuickBooks pair it with a field tool (Jobber, Housecall Pro, or a pricebook app like Profit Rhino) rather than using QuickBooks alone.

Can I accept credit cards on the truck with any of these tools?

Yes, every tool on this list supports some form of on-truck payment acceptance. Square Invoices uses Tap to Pay on iPhone or Android with no extra hardware. Jobber, Housecall Pro, Workiz, and ServiceTitan ship with branded payment processing built into their mobile apps. QuickBooks Online uses GoPayment. Agiled connects to Stripe and PayPal, which support Apple Pay and Google Pay through the invoice link. Invoice Simple and Joist send pay-links the customer taps on their own phone.

How much does plumbing invoicing software cost?

Pricing spans $0 to $398+/tech/month. Free tools include Wave, Square Invoices (free tier), Zoho Invoice, Invoice Simple (free tier), and Agiled's free plan. Mid-tier paid tools ($19-$119/month) cover FreshBooks, QuickBooks Online, Jobber, and Housecall Pro. Enterprise tools start around $187/month for Workiz and climb past $398/tech/month for ServiceTitan. The realistic total annual cost for a 3-tech residential shop lands somewhere between $14,000 and $17,000 once payment processing fees are included on $600,000-$800,000 of card and ACH revenue.

What is the best invoicing app for plumbers who travel between jobs all day?

The test that matters is offline mode. Jobber, Housecall Pro, Workiz, ServiceTitan, and ServiceM8 queue invoices, photos, and signatures on the phone when cell signal dies in a basement or slab crawl. Once signal returns, everything syncs. FreshBooks, Agiled, QuickBooks Online, Invoice Simple, and Square Invoices need a live connection to send - you can draft offline but cannot push the invoice until you have signal. For plumbers who spend half their day in mechanical rooms, steel basements, or rural crawl spaces, offline mode is the feature that decides everything.

How do I handle flat-rate pricing in invoicing software?

Two paths. First, build a line-item library inside a generic tool (Agiled, QuickBooks, Square, Zoho Invoice) with every common task priced - toilet reset, water heater flush, PRV replacement, hydro-jet, backflow test, after-hours service call. Second, use a dedicated pricebook tool. Profit Rhino integrates with Jobber, Housecall Pro, and FieldEdge; ServiceTitan has Pricebook Pro native. Pricebook tools update pricing dynamically (seasonal surge, capacity-based, regional cost-of-labor adjustments). Item libraries are static - you update them manually twice a year.

Can plumbing invoicing software handle recurring service memberships?

Yes, for most of the tools on this list. Agiled, Jobber, Housecall Pro, ServiceTitan, Workiz, FreshBooks, Square Invoices, QuickBooks Online, and Zoho Invoice all support recurring invoice schedules at monthly, quarterly, semi-annual, and annual cadences. What differs is the layer on top: ServiceTitan and Housecall Pro have full membership modules with priority-booking flags, auto-generated maintenance work orders, and renewal reminder workflows. Generic invoicing tools handle the billing but not the scheduled work-order creation.

Is free invoicing software enough for a plumbing business?

For a solo plumber or 1-to-2-person shop running under 20 invoices a week, yes. Zoho Invoice, Square Invoices, Invoice Simple free tier, and Agiled's free plan all send unlimited invoices and accept card payments. The moment you add a second truck, a third tech, or a service-membership book, the free tools start breaking down - you lose recurring billing automation, priority-booking flags, job profitability, or dispatch. Budget for $25-$60/month per small shop as soon as you pass 30 invoices a week.

Do plumbing invoicing tools integrate with QuickBooks?

Every serious tool on this list syncs with QuickBooks Online. Jobber, Housecall Pro, Workiz, ServiceTitan, FieldEdge, and Service Fusion support two-way sync. Agiled exports to QuickBooks-compatible CSV. FreshBooks and Square Invoices sync one-way (to QuickBooks). Zoho Invoice requires Zoho Books as the bridge. QuickBooks Desktop integration is patchier - most field tools support it through a third-party connector like Rightworks or Method but with occasional sync delays. If your bookkeeper runs QuickBooks Desktop and refuses to migrate, confirm Desktop sync with the vendor before signing.

What is the fastest way to get paid on a plumbing invoice?

Card tapped at the customer's door through the tech's phone. Every tool with on-truck payment acceptance (Square Tap to Pay, Jobber Payments, Housecall Pro Payments, Workiz Pay, ServiceTitan Payments, QuickBooks GoPayment, Stripe via Agiled or FreshBooks) supports this. Average settle time is same day to next day. Compare that to a mailed check at 9-14 days or a net-15 invoice at 10-15 days, and card-at-the-door saves your shop 7-13 days of AR aging on every residential call. For commercial customers where card-at-the-door is not feasible, pushing net-15 invoices to pay-by-ACH with card-on-file saves 3-7 days versus a paper check.

The Bottom Line

For plumbing owner-operators and shops under 5 techs, Agiled is the strongest value - it replaces invoicing, CRM, contracts, proposals, scheduling, and a client portal with one subscription starting at $0/month. For dedicated field-service dispatch with mature mobile apps, Jobber ($29+/month) leads the under-15-tech bracket with Housecall Pro close behind. For shops whose CPA insists on QuickBooks Online, pair it with Jobber or Housecall Pro for field workflow. Solo plumbers on iPhone should look hard at Square Invoices free tier with Tap to Pay. ServiceTitan makes sense only past $3M revenue and 10+ techs.

The right invoicing tool is the one your tech opens in the customer's kitchen on a Tuesday afternoon to take a card payment before walking back to the truck. Start with a free trial or free tier, run your next 30 service calls through it, and measure two things: time from job-complete to invoice-sent, and time from invoice-sent to payment-cleared. If those two numbers shrink versus your current workflow, you have found your platform.

Get Started With Agiled Free

Related Articles:

• Best CRM for Plumbers
• Best Invoicing Software for Freelancers
• Best Invoicing Software for Construction
• Best CRM for Roofing Contractors
• Best CRM for Cleaning Business