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Invoice Payment Tracker

Match payments against invoices, including the lump sums that cover several.

Quick Tool Overview

The Invoice Payment Tracker matches incoming payments to invoices — on reference, then on exact amount, then by searching combinations for the lump sum that covers three at once — and reports honestly on whatever it could not place.

What it does
Matches payments to invoices
You give it
Open invoices and payments received
You get back
Allocations, and what is left over
Best for
The monthly allocation job
Invoice Tools Free, unlimited use No sign-up Runs in your browser

About the Invoice Payment Tracker

Payments rarely arrive in the shape invoices were sent. A customer pays three invoices with one transfer, or pays a round number that covers two and part of a third, or pays with a reference that matches nothing at all. Working out what has actually been settled is a job somebody does by hand every month, and it is exactly the kind of job a computer should do.

This matches a list of payments against a list of invoices. It matches on reference first, because a payment quoting an invoice number is unambiguous. Then on exact amount, which settles most of the rest. Then it looks for combinations — a payment that exactly equals the sum of two or three open invoices — which is the case that takes longest by hand and is the easiest to automate.

What is left is reported honestly: payments it could not place, invoices still open, and part payments with the balance remaining. It does not guess, because a wrongly allocated payment is worse than an unallocated one.

Key features of the Invoice Payment Tracker

Three matching passes

Reference, exact amount, then combinations.

Lump sums resolved

A payment that equals two or three open invoices is found.

Part payments

Matched with the balance shown.

No guessing

A wrongly allocated payment is worse than an unallocated one.

CSV of the allocation

Ready for the ledger.

How to use the Invoice Payment Tracker

  1. 1

    Paste the open invoices

    Number, customer, date and amount.

  2. 2

    Paste the payments received

    Date, amount and whatever reference came with them.

  3. 3

    Read the matches

    By reference, by exact amount, then by combination.

  4. 4

    Deal with what is left

    Unmatched payments and open invoices, listed plainly.

  5. 5

    Export the allocation

    CSV of every match, for your ledger.

Frequently asked questions

By looking for a combination of open invoices that sums to the payment. This tool searches combinations of up to four, which covers the overwhelming majority. Beyond that, ask the customer for a remittance advice.

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