The invoice does the math so you don't have to.

If you're still retyping the same invoice math every time you bill a client, or trying to remember who's actually paid from memory, this fixes both — in the spreadsheet software you already have.

WHAT'S INSIDE

- Invoice template — auto-calculates subtotal, discount, and VAT. Fill in your business details once; every invoice after that takes under a minute.

- Quote template — same automation, formatted for sending estimates before an order is confirmed.

- Payment Tracker dashboard — one tab that shows what's been invoiced, what's been collected, and what's still outstanding, updated automatically as you log entries.

- Read-me guide — a legend for what to edit, plus quick instructions for duplicating a new invoice for every client.

HOW IT WORKS

Every total is a real formula, not typed-in text — change a quantity or price and the subtotal, VAT, and grand total recalculate instantly. VAT is pre-set at 7.5% (Nigeria's standard rate) but it's one editable cell, so you can set it to 0% if you're not VAT-registered, or adjust it for a different jurisdiction.

WHO IT'S FOR

Any small business owner in Nigeria (or anywhere) who sends invoices or quotes regularly and wants them to look professional without paying for invoicing software or hiring someone to build a system.

REQUIREMENTS

Works in Microsoft Excel or Google Sheets — no other software, no installation, no subscription.

WHAT YOU'RE PAYING FOR

A one-time purchase. Use it for as long as you run your business, and duplicate the file freely if you run more than one.

Akindolire Adekunle