How to Write a Receipt: 7 Essential Fields & Common Mistakes to Avoid

A receipt is your proof that a customer paid you. It's a legal document that confirms the transaction, and if you get it wrong—missing fields, duplicate numbers, or lumped taxes—you're inviting audit headaches and customer disputes. Here's exactly what to put on every receipt, how to write one step by step, and the mistakes that trip up most business owners.

The 7 Essential Fields Every Receipt Must Have

Every valid receipt needs these seven items. Miss one, and a tax authority or a customer can challenge it.

• Header labeled "Receipt" – Make it obvious what the document is. Don't rely on context.
• Date and time of payment – This is the primary timestamp for accounting. For cash-register receipts, include the time too.
• Unique receipt number – Never reuse numbers. A duplicate number looks like fraud or sloppy bookkeeping. Use a separate sequence from your invoices.
• Your business name and contact info – Full legal name, address, phone, and email. Your customer needs to know who took their money.
• Customer name – For B2B transactions, include the company name. For retail, the buyer's name is optional but recommended for large purchases.
• Itemized list of goods or services – Describe each item, the quantity, and the unit price. "Miscellaneous" won't cut it.
• Total amount paid with tax broken out – Show subtotal, tax (VAT, GST, or sales tax) on a separate line, and the grand total. Never bundle taxes into line items.

5 Optional Fields That Save You Trouble

These aren't required, but they prevent disputes and build trust.

• Return or refund policy – Print your return window and conditions. Cuts down "I didn't know" arguments.
• Payment method – Cash, credit card (last four digits), check number, or bank transfer. Helps reconcile payments.
• Invoice or order reference number – If this receipt pays a specific invoice, link them. Makes audits smooth.
• Signature or acknowledgment line – Standard for large cash transactions or when the receipt acts as a contract.
• Thank-you note – Costs nothing, improves customer experience. "Thanks for your business" works fine.

How to Write a Receipt in 7 Steps

Here's a concrete example. Say you run a landscaping business and just finished a $850 job for Acme Corp.

Step 1: Choose your format – For a one-off service like this, use a PDF or email receipt. Handwritten works for cash payments, but PDF is professional and searchable.

Step 2: Add the header – At the top, write "RECEIPT" in bold, then your business name and logo. Include your address and phone.

Step 3: Record date and customer details – Date of payment: March 15, 2025. Customer: Acme Corp, 123 Oak St.

Step 4: Assign a unique number – Use something like RCP-2025-001. Never repeat numbers.

Step 5: Itemize the work – List each service: "Lawn mowing – 2 hours @ $100/hr = $200", "Tree trimming – 3 hours @ $150/hr = $450", "Waste disposal – $100". Total before tax: $750.

Step 6: Calculate tax – If your sales tax is 8%, show it as a separate line: "Sales tax (8%) – $60". Grand total: $810.

Step 7: Note payment method and send – "Paid via credit card (ending in 7890)." Email the PDF to the client and save a copy for your records.

3 Common Receipt Mistakes That Cost You

Mistake 1: Duplicate receipt numbers. Using the same number for two different transactions makes it look like you're hiding revenue. Set up a separate numbering sequence for receipts and never reset it.

Mistake 2: Bundling taxes into line items. If you list "Lawn mowing – $216" instead of "$200 + $16 tax", you can't prove to an auditor how much tax you collected. Always show tax on its own line.

Mistake 3: Not reconciling with invoices. Your receipt should match the related invoice exactly—same amounts, same dates, same reference number. If they differ, you'll spend hours explaining discrepancies during an audit.

Receipt vs Invoice: Know the Difference

An invoice says "you owe this." A receipt says "you paid this." Send an invoice before payment, then issue a receipt after the money lands. Don't use one document for both roles—it confuses customers and muddles your accounting. Keep them separate, and always link them with a reference number.