A sales invoice documents a product sale: itemized lines with product names/SKUs, quantities, unit prices, and line totals; shipping as its own line; sales tax calculated on the taxable amount at the destination's rate (post-Wayfair, remote sellers may owe tax in buyers' states once they cross economic nexus thresholds, commonly $100,000 in sales); and payment terms — immediate for consumer sales, Net 30 for wholesale accounts. The sales invoice is also the seller's record for revenue recognition, inventory reconciliation, and sales tax filing.
Sales Invoice Template
Reviewed by the Agiled editorial teamUpdated June 2026
A sales invoice looks like the simplest bill there is — products, quantities, prices — until sales tax enters, and then it's the most regulated line on any invoice in America. Which state's rate applies, whether shipping is taxable, whether the buyer's resale certificate exempts the sale, whether you've crossed another state's economic nexus threshold — every one of those questions lands on this document. This template handles the product mechanics cleanly and gives the tax line the respect it requires. Download it in PDF, Word, Excel, Google Docs, or Google Sheets, or generate a pre-filled version below.
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Your Company Name
123 Business St, City, State 12345
billing@yourcompany.com
INVOICE
INV-0001
Bill to
Client Company
Due
Net 30
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Product A | 10 | $50.00 | $500.00 |
| Product B | 5 | $120.00 | $600.00 |
| Product C | 20 | $15.00 | $300.00 |
| Shipping and handling | 1 | $25.00 | $25.00 |
Download this invoice template
Pick a style, choose a format, and download — generated locally in your browser.
Style
Format
Fixed layout for sending and printing
Word
Editable in Word or Google Docs
Excel
Live formulas for recurring invoices
Or create and send invoices online
Create online- Lines
- SKU, quantity, unit price, total
- Tax
- Destination rate on taxable amount
- Nexus trigger
- Commonly $100k sales into a state
- Terms
- Immediate retail; Net 30 wholesale
What to include on a sales invoice
Product lines with identifiers
Name and SKU/model per line — "Cedar planter box, 36\" (CPB-36) — 4 @ $89." Identifiers tie the invoice to inventory, returns, and warranty claims.
Quantity × unit price, visibly
The retail math pattern on every line. Volume discounts appear as either adjusted unit prices (noted) or labeled discount lines — never silent arithmetic.
Shipping as its own line
Carrier and service level noted. Shipping's taxability varies by state (taxable in some, exempt in others, mixed rules for combined shipping-and-handling) — its own line keeps the tax math auditable.
Sales tax at the destination's rate
Rate and amount shown — calculated on the taxable portion at the rate where the goods are delivered. Multi-state sellers: nexus rules decide where you must collect.
Exemptions documented
Wholesale/resale sales show the buyer's resale certificate number in place of tax. No certificate on file means you collect tax — the exemption is theirs to prove, the liability is yours.
Payment terms by channel
Consumer sales: due at sale. Wholesale accounts: Net 30 against a credit application, with early-payment discounts (2/10 Net 30) where offered.
Order and fulfillment references
Order number, ship date, tracking — the links a buyer needs for receiving and the seller needs when the 'where is it / what was it' call comes.
Sales invoice tax and terms basics (U.S., 2026)
| Item | Standard | Notes |
|---|---|---|
| Sales tax basis | Destination rate, most states | A few origin-based states |
| Economic nexus threshold | $100,000 sales (most states) | Some also use 200 transactions |
| Marketplace sales | Platform collects | Amazon/Etsy etc. as facilitators |
| Resale exemption | Certificate on file required | Seller's liability without it |
| Shipping taxability | Varies by state | Keep it a separate line |
| Consumer terms | Due at sale | |
| Wholesale terms | Net 30 | 2/10 Net 30 discounts common |
Sales tax rules are state-by-state and change frequently — thresholds, rates, and shipping treatment all vary. Multi-state sellers should verify nexus obligations annually.
How sales billing actually works
Direct retail sales
Consumer product sales invoice at the transaction: itemized products, shipping, tax at the buyer's destination rate, paid at sale. The invoice doubles as the customer's receipt and warranty record (those SKUs matter at return time) and your inventory decrement and revenue entry. For online sellers, marketplace platforms typically collect and remit tax as facilitators — but direct-channel sales (your own site) put the obligation back on you, including in states where you've crossed nexus thresholds.
Wholesale accounts: terms and certificates
Selling to retailers and distributors changes the structure: a credit application establishes Net-30 terms, a resale certificate (collected and kept on file, refreshed periodically) replaces tax collection, and invoices bill per order with PO references for buyers who issue them. Statements consolidate the month's invoices per account. The two disciplines that protect the seller: never extend terms before the credit application, and never skip tax without the certificate actually on file — auditors assess the seller, not the buyer, for missing paper.
Returns, credits, and the paper trail
Product sales generate reversals: returns issue credit memos referencing the original invoice and lines ('Credit memo CM-118 against INV-0902, 2 × CPB-36 returned'), restocking fees appear as labeled lines where policy applies, and tax credits back at the original rate. The reference chain — invoice to credit memo to refund — is what keeps inventory counts, revenue, and sales tax filings all reconcilable. Untracked returns are where small sellers' books quietly diverge from reality.
Invoicing mistakes that cost sales professionals money
Guessing at sales tax
Applying your home rate to every sale, or skipping tax on out-of-state orders past nexus thresholds, builds liability with penalties — the state audits sellers, not buyers. Know where you owe; automate the rates.
Tax-exempt sales without certificates
'They said they're a reseller' is not documentation. Certificate on file before the exemption, renewed on schedule, or the auditor's assessment lands on you.
Folding shipping into product prices
Buried shipping distorts product economics and breaks tax math in states with specific shipping rules. Separate line, carrier noted, taxed per your state's treatment.
Unidentified products
Lines without SKUs can't reconcile to inventory or returns. Every product line carries its identifier — it's the difference between records and prose.
Returns without credit memos
Ad-hoc refunds disconnect revenue, inventory, and tax filings from each other. Every return gets a credit memo referencing the original invoice and lines.
How to use this template
- 01
Download the template in your preferred format, or generate a pre-filled version with the download studio above.
- 02
Add your business details and the buyer's, with order references.
- 03
Itemize products with SKUs, quantities, unit prices, and line totals.
- 04
Add shipping as its own line, then tax at the destination's rate on the taxable amount.
- 05
For wholesale: bill on Net 30 against the credit application, with the resale certificate on file replacing tax.
- 06
Issue credit memos against original invoices for any returns, and reconcile invoices to inventory monthly.
Skip this template if…
- Service billing — hours and deliverables belong on the services or hourly templates.
- Marketplace-only sellers — the platform's invoices and tax collection govern; your records are its statements.
FAQs
What is a sales invoice?
The seller's bill documenting a product sale: itemized products with SKUs, quantities, and unit prices; shipping; sales tax; and payment terms. It's simultaneously the buyer's purchase record and the seller's revenue, inventory, and tax-filing document — which is why the identifiers and tax math matter beyond getting paid.
How is sales tax calculated on an invoice?
On the taxable portion of the sale at the applicable rate — in most states, the rate where the goods are delivered (destination basis). Shipping is taxable in some states and not others, which is why it stays a separate line. Resale-certificate holders are exempt; everyone else pays at the line.
Do I need to collect sales tax for out-of-state sales?
Once you cross a state's economic nexus threshold — commonly $100,000 in annual sales into that state (some states add a 200-transaction test) — you must register and collect there, post-Wayfair. Marketplace platforms collect for sales through them; direct-channel sales are on you. Multi-state sellers should review nexus exposure annually.
What's the difference between a sales invoice and a receipt?
Timing and direction: the invoice requests or records payment due for a sale; the receipt confirms payment received. In retail they often merge — a paid-at-sale invoice marked paid functions as both. On wholesale terms they're distinct: the invoice starts the Net-30 clock, the payment record closes it.
How do wholesale invoices differ from retail ones?
Wholesale adds: Net-30 terms backed by a credit application, resale certificates replacing sales tax, PO references for matching, volume pricing shown transparently, and monthly statements consolidating open invoices. The product lines are the same; the credit-and-compliance layer around them is the difference.
How do I handle a return on a sales invoice?
With a credit memo referencing the original invoice and lines: products returned, restocking fee if policy applies, and tax credited at the original rate. The chain — invoice, credit memo, refund — keeps revenue, inventory, and tax filings reconciled, and answers any future dispute from paper.
Pair it with the sales contract template
Invoices collect; contracts protect. Get the matching agreement in Word or PDF — free, like this template.
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