Invoicing & Billing Software for Agencies
Run the retainer book on recurring invoices, bill projects by milestone, and pass through ad spend and tooling cleanly. Billing shares a system with your CRM and projects, so nothing falls between tools.
The retainer book runs itself
An agency with 20 retainers shouldn't hand-create 20 invoices a month. Recurring billing sends each client's invoice on its cycle — first of the month, quarterly, whatever the MSA says — with online payment links and automatic reminders doing the follow-up your account managers shouldn't be doing.
Scope tiers map to line items: the $4,000 SEO retainer, the $1,500 content add-on, the paid-media management fee at 12% of spend. Itemization is what makes the renewal conversation about value instead of about the total.
Projects, pass-throughs, and the SEO billing problem
Project work bills on milestones — discovery, build, launch — as scheduled invoices per engagement. For SEO agencies specifically, billing credibility comes from itemized deliverables: the audit, the link acquisitions, the content pieces, listed against the month they shipped.
Pass-through costs are where agency margin quietly leaks: ad spend, stock licenses, premium plugins. Billing them through with documentation on the client's invoice keeps margin intact and disputes short.
Billing next to the work, not in another tab
When billing shares the system with CRM and projects, the account team sees what's billed, what's outstanding, and what's about to renew without asking finance. The client who's 45 days late on two invoices is visible before the team sinks another sprint into them.
Aging by account, revenue by month, and retainer-versus-project mix are reports, not spreadsheet projects — the numbers an agency owner needs monthly and usually reconstructs quarterly.
What to look for in agency billing software
Agency billing is a book of retainers plus project work plus pass-throughs. The capabilities that decide:
- Recurring retainer invoices per client cycle — twenty retainers should mean zero manual invoices.
- Itemized scope tiers and deliverables, so renewal conversations are about value, not totals.
- Pass-through billing with documentation: ad spend, licenses, freelancers, tools.
- Milestone invoicing for project work alongside the retainer on the same account.
- Aging and billing status visible to account teams, not just finance.
How Agiled compares to FreshBooks, QuickBooks, and Productive
Small agencies typically run FreshBooks (from about $19-23/month) or QuickBooks (from about $38/month) next to a separate PM tool; agency-management platforms like Productive (from about $9-24/user/month) integrate billing with delivery but price per seat across the whole team. Both patterns are workable.
Agiled integrates billing with CRM and delivery at a flat price: the retainer's invoice, the project's milestones, the pass-through expenses, and the account's aging share one client record, free plan included. The per-client profitability question stops requiring a quarterly spreadsheet project.
FAQ
Common questions about invoicing software for agencies
FreshBooks and QuickBooks are the common accounting-led picks; Productive the agency-management platform with per-seat pricing. Agiled is the strongest flat-priced option that ties retainer billing to clients and delivery. Our ranked guide to agency invoicing software compares the approaches.
Accounting tools run $19-38/month plus a PM tool; agency platforms charge per user, which compounds across a team. Agiled prices flat with a free plan covering invoicing, CRM, and projects together.
Yes. Each client's retainer bills on its own cycle with payment links and reminder sequences attached — twenty retainers means zero manual invoices.
As documented line items on the client invoice — ad spend, licenses, tools — so costs pass through with receipts instead of leaking out of agency margin.
Yes. Project invoices schedule against milestones on the same client account, so the retainer and the website rebuild bill cleanly side by side.
Yes. Invoices, payments, and aging live on the client record next to the work — so the team knows who's current and who's a collections risk before planning the next sprint.
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Try Agiled's invoicing software free
Built for agencies — invoicing software, CRM, projects, and billing in one platform. Free plan included.