Terms of use

Effective November 11, 2026

The service

DuplicateBillCheck, by Ettix, compares a bills-to-pay file you provide with an optional paid/history bills file you provide and with itself, in your browser, and shows for each bill to pay whether a bill with the same vendor, currency, amount and invoice number appears among bills marked paid, among history bills whose payment status is unknown or open, or elsewhere in the batch, and which bills are possible matches or invalid rows. For a paid batch it produces a complete CSV and a printable report. It does not connect to your accounting system, pay, void or approve bills, or give legal, accounting or tax advice. DuplicateBillCheck is not affiliated with or endorsed by Intuit or QuickBooks.

Free and paid use

• Free: checks on your device with batch-wide totals and counts, and the first 25 bills to pay in detail and as CSV.
• Full batch report: $49.00 USD, one time, for one batch in one project: every bill to pay on screen and in the CSV, the printable report and re-checks of that batch against new or corrected paid/history files. No subscription. The purchase is bound to a SHA-256 fingerprint of the project and the bills-to-pay file; it does not cover a different or edited batch file and is not transferable to another project.
• Payments are taken by Square or PayPal. The unlock is issued only after the provider confirms the payment. If something went wrong with a purchase, contact us.

Acceptable use

• Use files you are entitled to work with, for your own organization or a client who has authorized you.
• Do not attempt to get around the free limit or the payment verification, or interfere with the service.

Results

Results describe the files at the moment you checked them and are not proof that a bill was or was not paid or entered twice. Checking is deliberately strict: bills are compared only within the same vendor and currency, a likely duplicate needs the exact amount and the same invoice number (compared after conservative normalization), a bill is treated as paid only when its own status or paid date says so and never inferred from a bill row, and invalid data is flagged rather than guessed. A bill that is not flagged may still be a duplicate the files do not show. Results are provided as is, without warranty. To the extent permitted by law, our liability is limited to the amount you paid for the affected batch.

Your data

Files are read and stored in your browser and are never uploaded. See the privacy notice for exactly what reaches our server.

Changes

We may update these terms; the effective date above changes when we do. Purchases already made keep the scope described when you paid.