Check your supplier invoices for duplicate payments

Choose an Excel or CSV export of your accounts payable invoices. In a minute or two you'll see how many likely duplicates it contains and how much they're worth – free. Unlock the full Excel workbook to review every one.

Your details

Needed before the check runs. Only these details are sent to us – never your invoice data.

First name * Last name * Company * Job title Work email * Phone *

I agree to be contacted about my results, as described in the privacy notice. * Send me occasional news and offers (optional)

Choose your invoice file

Drop a file here or browse Excel (.xlsx, .xls) or CSV · up to 500,000 rows

Needs Supplier Number, Invoice Number, Invoice Date, Gross Amount. VAT, Net, Supplier Name, Credited, Payment Number, Payment Type and Paid are optional. Negative amounts are treated as credit notes. The free check takes up to 500,000 lines per file; the full report can be bought for files of up to 100,000 lines – for bigger files, check in batches or contact us. Exports from SAP, Oracle and most other systems usually work as they are; otherwise use the data template.

Settings (optional)

Full results: include an “All Rows” sheet with every row and its result (turn off for very large files – faster and smaller)

Run the check

The free summary shows rounded figures. The full results list every invoice with exact amounts.

Getting the checker ready… (the first visit downloads about 20 MB; later visits are quicker)

Lines checked

Lines to review

High risk overpayment (net value)

Potential overpayment (net value)

Error type	Lines	Net value of lines	Potential overpayment	High risk overpayment

How to read this table

Each Dupe number is a type of duplicate payment found in your file with a potential overpayment. The full results say exactly what each one is, and list every invoice in it.
Lines and Net value of lines count every line of that type – the genuine invoice as well as any copies. They show how much spending is affected, not money lost.
Potential overpayment is the value of the extra copies: where an invoice appears twice, one copy is genuine and one is the overpayment.
High risk overpayment is the part we're most confident about – the realistic recovery figure.
The two overpayment columns add up to the totals at the top. The net value column doesn't, because it includes the genuine invoices and credit notes (shown as negative).
All values are net (Net column, or gross minus VAT where Net is blank). Figures in this free summary are rounded; the full results have exact amounts.

Choose how to proceed

Option 1

Buy this report

You will receive:

The full Excel workbook identifying transactions.
A full report showing types of error.
High risk and potential overpayment summary.
Adjustable VAT rates and tolerance limits before you run the check.
A summary report of error type, value and volume.

The data stays on your computer – we never get to see it.

WARNING

If your file has over 100,000 lines, you have options:

Re-run the report in batches of 100,000 lines by sorting the invoice number into highest to lowest and purchase multiple runs of the report to capture the data to the limits you set.
Refer to Option 2.

Card, PayPal or bank (Stripe). Your download starts as soon as payment completes.

Option 2

Contingency Recovery Audit

Let us do the work. We offer a contingency based audit service which includes the following options:

Full statement reconciliation of your vendor master file.
Identify and recover any duplicate payments highlighted on the report.
Do a full VAT review to identify lost VAT claims.
Recover any overpayment from suppliers.

No Recovery, no fee.

Call us today for a no obligation chat.