A plumbing receipt is a different document from the invoice, and a business that issues one as the other confuses its own books. The invoice asks for money; the receipt proves it was received. It carries the invoice number it settles, the amount, the method, the date, any balance still owed, the date the warranty on the work starts, and the firm's details. The invoice tool on this site prints the invoice; the paid product issues the receipt the moment payment is taken in the truck.
What the receipt proves
For the customer: that the invoice was paid, on a date, by a method, which is what an insurer, a landlord or a house sale asks for. For the business: that the payment matches an invoice, which is what the reconciliation runs on. A receipt without the invoice number proves the first and not the second.
The lines
Firm name and details, receipt number, invoice number, customer and property, amount received, method, date, balance remaining, and the warranty start date and term. A receipt for a deposit says so, and shows the estimate it is against and the balance expected.
Receipt at the point of payment
When the technician takes payment in the truck, the receipt goes to the customer's email before the van leaves, and the invoice is marked paid in the same moment. That is the difference between software and a receipt book: the book leaves the office to reconcile a slip a week later.
Warranty starts here
The receipt is the document the customer keeps, so it is where the warranty term is stated: what is covered, for how long, from this date. RoughInDesk Pro keeps the receipt against the property record so a warranty call a year later is answered from the file.
Questions people ask about plumbing receipt
Can the invoice double as the receipt?
An invoice stamped paid does the customer's job but not the reconciliation's. Issue the receipt with the invoice number on it.
Do I need a receipt for a card payment?
The card processor's slip proves the charge; the receipt proves what it was for. Customers keep the second.
Is this free?
The invoice tool is, without an account. Issuing receipts at payment is the paid product.