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Invoice Validation Tool

Check an invoice before you send it: required details, arithmetic and what a client can query.

Invoice Tools Reviews Free · no sign-up

Quick Tool Overview

The Invoice Validation Tool reads a pasted invoice the way a client’s accounts payable team does — checking that the required details are present, that the arithmetic adds up, and that any tax and bank numbers pass their own check digits.

What it does
Checks an invoice before it is sent
You give it
The invoice as text
You get back
A checklist of what is missing or wrong
Best for
Avoiding queried and rejected invoices
Invoice Tools Free, unlimited use No sign-up Runs in your browser

About the Invoice Validation Tool

An invoice is rejected for boring reasons. No purchase order number, so it cannot be matched. No due date, so it goes to the bottom of the pile. A VAT number that is one digit out. A subtotal that does not match the lines, which makes an accounts team query the whole thing rather than the one line.

Paste the invoice — as text, from a PDF, from an email — and this reads it the way a client’s accounts payable team does. It looks for the details that must be there: an invoice number, both businesses, the dates, the currency, the line items, the tax treatment, how to pay. It recalculates the arithmetic it can find: the lines against the subtotal, the tax against the rate, the subtotal and tax against the total.

Then it checks the numbers that carry check digits — VAT, GSTIN, ABN, IBAN — and flags what is only well-formed rather than verified. Every finding says what is wrong and why it matters, so the fix takes a minute instead of a week of email. Nothing is uploaded.

Key features of the Invoice Validation Tool

Required details

Numbers, dates, parties, currency, tax and payment terms.

Arithmetic rechecked

Lines against subtotal, tax against rate, total against both.

Identifiers checked

VAT, GSTIN, ABN and IBAN by their own rules.

Practical warnings

No PO number, no due date, no way to pay.

Nothing uploaded

The invoice is read in your browser.

How to use the Invoice Validation Tool

  1. 1

    Paste the invoice

    Copy the text out of a PDF, a document or an email.

  2. 2

    Set the country and type

    So the right requirements are applied.

  3. 3

    Read the failures

    Missing details first, then arithmetic, then the identifiers.

  4. 4

    Fix and re-check

    Paste the corrected invoice back in.

Frequently asked questions

That the details required on an invoice are present, that the arithmetic adds up, that any VAT, GST, ABN or IBAN passes its check digit, and the practical things that get invoices queried — no PO number, no due date, no payment details.

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