If you want the totals to add themselves, use a spreadsheet. This Google Sheets invoice template has formulas for each line amount (quantity × rate), the subtotal, tax at a rate you set, a deposit credit and the total due, laid out to print on one page. It is delivered as an .xlsx so it imports into Google Sheets and opens in Excel and Numbers unchanged.
Free, one page, US Letter. No email, no sign-up. The second tab is a simple invoice log: number, client, date, amount, paid, so the file is also your tracker.
Same layout in other formats: Fillable PDF · Word (.docx)
The layout: header, bill-to block, line table, totals, terms. Same in every format; the format changes how you fill it.
| Word | Google Docs | Google Sheets | ||
|---|---|---|---|---|
| Totals calculate | No | No | No | Yes |
| Edit the layout | Yes | No | Yes | Partly |
| Fill on a phone | Partly | Yes | Yes (app) | Partly |
| Needs an account | No | No | Google or Excel | |
| Sends as | Save as PDF | Download as PDF | Download as PDF | |
| Best for | Custom look | Fastest, any device | Shared Drive | Math and a log |
Avo keeps your clients and your usual line items, so the next invoice is three taps. Your first three documents are free, full-quality PDF, no watermark. Premium from $59.99/year if you invoice often.

Scan the code with your iPhone camera to open Avo in the App Store, or email yourself the link.
Yes, in the template gallery under Work. It has basic formulas but no tax or deposit handling and no log. This template adds those and prints on one page.
Type only in the description, quantity and rate cells; the amount column and the totals are formulas. If one breaks, re-download the template and copy your lines back.
Yes. The .xlsx opens in Excel and Numbers with the same formulas. Only the import step is specific to Google Sheets.
Set the tax rate in the tax cell and mark taxable lines with a “Y” in the tax column; the formula taxes only those. Labor is tax-exempt in many states while materials are not, which is why the column exists.