What a receipt needs to say
A receipt is the payee's written acknowledgment that money was received. The useful ones state a receipt number, the date, who paid, who received, the amount in numerals and words, the payment method (with a check or transaction number if there is one), what the payment was for, and whether anything is still owed. Signed by the person who took the money, it becomes the payer's proof and the payee's record. Common uses are private sales of a car, bike, furniture or electronics, security deposits and rent paid in cash, deposits on a service, and repayments on a personal loan.
The generator numbers receipts from the date (20260924-001; change the last digits if you write more than one that day), writes the amount in words, and switches the wording between "paid in full" and a balance-due summary. Enter a check number or app transaction ID for anything other than cash so the receipt can be matched to a bank statement.
"Paid in full" and "as-is"
Marking a receipt "paid in full" tells everyone that the transaction is closed and no further money is owed for that item; a buyer should insist on it, and a seller should only write it when the balance really is zero. If the buyer still owes money, list the total, the amount paid and the balance instead, and write a second receipt when the rest comes in.
For private sales of used goods, add the words "sold as-is": the buyer accepts the item in its current condition, with no warranty or right of return. Most states allow private sellers to disclaim warranties this way, though you still cannot lie about a known defect or, for a vehicle, roll back an odometer. Vehicle sales usually need a state bill of sale and a title transfer in addition to a receipt; a used car receipt is a good supplement, not a substitute. When the description mentions as-is, the generator adds a short disclaimer paragraph.
Taxes and record keeping
Keep copies. The IRS expects records supporting anything on your return for at least three years, and a landlord, a contractor or a small seller may need receipts to prove income or expenses. Buyers of business equipment need the receipt to claim a deduction or depreciation. Receipts for security deposits protect tenants in states with strict deposit return rules.
Sales tax: an occasional private sale between individuals (a garage sale, selling your old bike) generally does not require collecting sales tax, but vehicle buyers usually pay use tax when they register the car, and anyone selling regularly, at fairs, or online may need a seller's permit and must collect tax. A plain receipt is not an invoice and not a tax document; if you are running a business, use accounting software that tracks tax separately. Nothing here is legal or tax advice.