Two ways to invoice, both free. Repeat clients every month? Take the spreadsheet. One-off job? Use the generator and print it.
Type your items; quantities, amounts, discount, tax and total calculate themselves. Works in Excel and Google Sheets (upload it).
Download the .xlsx →No file to keep track of — fill the form, print or save a PDF. Nothing is uploaded anywhere.
Open the generator →Your business name and contact details, the client's name, a unique invoice number, the date and the due date, an itemized list (description, quantity, rate), any tax shown as its own line, the total, and how to pay you. Every one of those is in both templates — the two mistakes that delay payment most often are a missing due date and missing payment instructions, so don't delete those fields.
Templates are provided for estimation and general business use — check your local requirements for invoices and sales tax in your state or country. Not tax or accounting advice.