Invoice vs Receipt: What's the Difference?

The One-Sentence Answer

An invoice is a payment request — you send it before the money arrives. A receipt is a payment confirmation — you issue it after the money has been received. An invoice says "you owe me"; a receipt says "you paid me".

Both documents record the same transaction, but at different points in time and for different audiences in the accounting process.

What Is an Invoice?

An invoice is a formal document a seller sends to a buyer to request payment for goods or services. It is created once the goods have been delivered or the work is complete, and it sets out exactly what was provided, how much it costs, and when payment is due.

Invoices are the primary billing document in business-to-business (B2B) transactions. They create a legal record of what was agreed and what is owed, and they are essential for VAT and tax reporting when applicable.

What an Invoice Includes

• Seller's name, address, and contact information
• Buyer's name and address
• Unique invoice number
• Invoice date
• Payment due date and terms
• Itemised list of goods or services with quantities and prices
• Subtotal, applicable tax (e.g. VAT), and total due
• Payment method and bank details

Invoices are forward-looking: the payment has not yet been made when you send one. Learn how to create a professional invoice with all required elements.

What Is a Receipt?

A receipt is a written acknowledgement that a payment has been made. It confirms the transaction is complete from the buyer's perspective. Receipts are issued after money changes hands — whether that's cash, card, bank transfer, or any other payment method.

In retail, receipts are issued immediately at the point of sale. In service-based businesses, a receipt might be issued electronically once a bank transfer or card payment clears.

What a Receipt Includes

• Seller's name and contact information
• Date of payment (not invoice date)
• Amount paid
• Description of goods or services purchased
• Payment method used (cash, card, transfer)
• Receipt number for reference

Receipts are backward-looking: they confirm something that has already happened.

Key Differences: Invoice vs Receipt

1. Timing

Invoices are issued before payment. Receipts are issued after payment. This is the most fundamental distinction. If you send a document after receiving money to confirm the transaction, it's a receipt. If you send it to request money, it's an invoice.

2. Purpose

The purpose of an invoice is to request payment and create a legal record of the debt. The purpose of a receipt is to confirm that debt has been settled. From an accounting standpoint, the invoice records an accounts receivable (money owed to you); the receipt closes that entry.

3. Who Keeps Them

As the seller, you keep copies of both documents. For the buyer, the invoice explains what they're being charged for, while the receipt is the proof they need to claim business expenses or process a return. Buyers should keep receipts for any expense they plan to deduct from their taxes.

4. Tax Implications

Invoices are used to report VAT or sales tax collected (as a seller) and to reclaim input tax (as a buyer). A VAT invoice, for example, must contain specific details including the seller's VAT registration number, the VAT rate, and the VAT amount. See our in-depth guide on how VAT invoices work in the UK.

Receipts are used to substantiate expense claims. Tax authorities in most countries require receipts as evidence for business expense deductions.

5. Paid Invoice vs Receipt

In many small business contexts, a paid invoice serves as both a request record and a payment confirmation. If you mark an invoice as "PAID" and include the payment date and method, it can function as a receipt for record-keeping purposes. However, in formal accounting, these remain separate documents.

When Do You Need an Invoice vs a Receipt?

Use an invoice when:

• You have completed work or delivered goods and need to be paid
• Payment terms are deferred (e.g. Net 30)
• You are billing a business rather than an individual consumer
• You need to charge VAT or sales tax
• You need a formal record of what was agreed for contract or dispute purposes

Use a receipt when:

• Payment has been received and you want to acknowledge it
• A customer requests proof of purchase (for returns, warranties, or expense claims)
• Payment was made upfront (e.g. a deposit or retainer)
• You are operating a retail or point-of-sale business

Can One Document Be Both?

Yes. A "paid invoice" is the most common hybrid. When a client pays immediately on delivery, you can issue an invoice at the time of transaction and immediately mark it paid — effectively creating a document that simultaneously requests and confirms payment. This is common in e-commerce and retail where transactions are instant.

Some businesses also use a "receipt invoice" or "sales receipt" as a combined document. The key is that whoever receives it can clearly identify whether payment is still owed or already made.

Do Small Businesses Need Formal Receipts?

Not always. For B2B transactions, the invoice and bank statement together are typically sufficient proof. However, if you're selling to consumers or operating in the retail space, issuing receipts is standard practice and often expected by customers.

Where you do collect money in advance — such as deposits — it's always good practice to issue a receipt immediately, both for your client's records and as protection against disputes later.

Summary: Quick Reference Table

Here's a fast reference for the core differences:

• Invoice: Pre-payment · Requests money · Creates accounts receivable · Required for VAT reporting
• Receipt: Post-payment · Confirms money received · Closes accounts receivable · Required for expense claims