Catch Duplicate Charges on a Hotel Folio at Checkout — Free
Paste the folio lines before you sign, and see which charges repeat — the minibar posted twice, the room billed on two folios — with the corrected total ruled at the foot.
The proof surface
Front desks fix duplicates in a minute when they are shown the line, and bill weeks of statements when they are not; running the roll against itself moves the correction to before the signature.
Why the flat version breaks
Signing at the counter
The signature converts a posting error into a accepted charge, and post-checkout disputes run on statement cycles, not goodwill.
Auditing from memory
Fifteen lines of incidentals do not survive recall; the roll finds the repeat the eye slides past.
Ignoring the second folio
Split-folio stays double-bill the shared night to two cards, and neither guest sees the other's copy.
How to work the folio audit receipt
Every line as printed, including the other guest's folio if the booking splits.
Repeated lines are stamped duplicate with the repeat value printed beside them.
The repeats are struck from the total at the foot — that is the number to pay.
Show the desk the stamped lines before signing, and keep the corrected print.
What the roll replaces
| Question | Before | On the roll |
|---|---|---|
| Is the folio right | sign and hope | every line checked against every other |
| What is duplicated | an unshakeable feeling | the repeated lines stamped with their dates |
| What do I pay | the printed total | the corrected total with the repeats struck |
The roll reads the folio you paste; the desk's own posting system is the authority once the duplicate is shown.
Run it on the samples, right here
FIRST-LOAD
Data note: Everything runs in this browser tab on the folio audit receipt: your folio postings and their dates stays on this device, nothing is uploaded, and the reading is rebuilt only when you press run.
Go deeper: the companion app files the same reading as a till receipt with a tear-off foot
The article demo above runs without limits. The companion app keeps a local history, exports the rows as CSV, prints the ready-to-mail packet, and holds your drafts on this device — one free run, then $ 5 one-time for the layer that keeps filing.
The audit and the corrected total are free. The paid layer keeps the folio audit, prints the front-desk dispute sheet, and tracks the refund until it lands.
Open the folio audit receipt companionBoundary
This folio audit receipt works only on the folio lines you paste you paste. It does not cancel charges after you have signed, does not decide what incidentals you owe, and does not dispute the hotel's tax rates. The figures describe what you supplied, not what is true in the world. Confirm anything you plan to act on with the front desk on duty for the instant fix, and your card issuer if the hold outlives the stay before you rely on it.
What this is built on
- Every figure comes from the folio lines you paste you paste; nothing is looked up, scraped or asserted as verified.
- Method: each posting line is matched against every earlier line by amount and reference wording; repeats are stamped, struck from the total and listed for the desk
- Sample values are labelled samples — illustrative by design, not your data and not a quotation of any organisation's policy.
Before: the reader signed the folio the front desk slid over. After: they caught a $64 minibar posted twice and a room charge on both folios before paying, because they ran the roll against itself first.