Bank Statement (SumUp, Stripe, Your Bank): Is It Enough as Accounting Proof?

A bank statement proves that a sum of money left your account on a given date, to an identified recipient. That's it. It does not prove what you purchased, the business nature of the expense, the VAT rate applied, or any of the information that the French tax authority or URSSAF (French social security authority) needs to validate a deduction.

The confusion is understandable. In the age of digital payments — SumUp, Stripe, SEPA transfers, Apple Pay — everything leaves a banking trail. You might think that trail is enough. It isn't. And discovering this reality during a tax audit is one of the most avoidable nasty surprises there is.

What the Law Says About Accounting Proof

The French General Tax Code (CGI) and French tax doctrine are unambiguous: for a business expense to be tax-deductible — whether from taxable income or from collected VAT — it must be supported by a supporting document (pièce justificative) that establishes the reality, nature, and amount of the transaction.

This supporting document must contain precise information: the date of the transaction, the seller's identity (name, address, intra-community VAT number for invoices), the description of the goods or services purchased, the unit price, the applicable VAT rate and the corresponding VAT amount, and the total amount including VAT.

A bank account statement contains none of this information beyond the total amount and the recipient's identity. It does not mention what was purchased. It does not break down VAT. It does not identify the professional or personal nature of the expense. It is a cash-flow document, not an evidence document.

The SumUp and Stripe Case: Why Fintechs Don't Solve the Problem

Over the past few years, payment tools like SumUp and Stripe have become widespread among small business owners, tradespeople, and independent contractors. They offer dashboards, CSV exports, transaction summaries — and many users believe these records carry more weight than a simple bank statement.

They are slightly more useful in terms of readability: you can sometimes see the transaction label, the amount, the date. But they suffer from the same fundamental flaw. SumUp and Stripe record financial flows, not purchases. On the seller side, these tools can generate invoices — that's their role when you collect payments from your own customers. On the buyer side, when you pay a third party, your Stripe export contains no information about the nature of what you paid for.

What Actually Happens During an Audit Without Receipts?

A tax audit or an URSSAF audit covering a period during which you have lost your receipts or invoices follows a predictable pattern. The inspector asks to review your supporting documents for the expenses you deducted. You present your bank statements. They note the absence of valid proof.

From there, the procedure is clearly defined. The corresponding expenses may be added back into your taxable income — you end up paying tax on amounts you thought you had deducted. Any VAT reclaimed on those purchases is clawed back — you must repay it, along with late-payment interest calculated from the date of the original declaration. Depending on the amounts involved and the repeated nature of the shortcomings, surcharges may be added on top, potentially reaching 40% of the additional tax assessed.

"I Lost My Receipt": What You Can Do — and What You Can't

When a receipt is gone, your options are limited but not zero. The first thing to do is contact the merchant and ask for a duplicate invoice or receipt. Some vendors can retrieve it from their point-of-sale system or invoicing software. This is easier with a supplier where you hold a business account than at a supermarket where you paid anonymously.

For online purchases, the electronic invoice received by email at the time of the order is a valid supporting document — provided you kept it. Platforms like Amazon Business or serious B2B websites systematically issue these documents. Finding them in your inbox is always possible, even months after the fact.

Why "Sorting Everything at the End of the Month" Is a Losing Strategy

Most self-employed people take a monthly view of their bookkeeping. They accumulate receipts and invoices over four weeks, then sit down to enter them — or send everything to their accountant in a messy pile. This rhythm is understandable, but it has a structural flaw: four weeks is precisely how long it takes for a thermal receipt to start fading.

Between the moment of purchase and the moment you pull the receipt out of a drawer to scan it, things have happened: heat in the car, moisture in a jacket pocket, friction against other objects. A perfectly legible receipt on Day 1 can be partially erased by Day 30. And an illegible receipt — however carefully stored — is not a valid accounting document.

Monthly procrastination turns a manageable constraint into a chronic problem. It guarantees you will regularly handle degraded documents, spend time trying to decipher half-faded amounts, and that some receipts will simply be gone with no recourse whatsoever.

At the Register, Not in the Drawer: How to Capture at the Right Moment

The solution is not technically complicated. It is behavioural. The right moment to capture a supporting document is immediately after the purchase — not that evening, not over the weekend, not at the end of the month. At that precise moment, the receipt is intact, legible, and you still remember exactly what you bought and why.

Pulling out your phone at the till takes two seconds. But what you capture must not just be another photo in your camera roll — an unstructured image file that someone will have to open and enter manually later.

ScanCompta is built for exactly that moment. You open the app, you photograph the receipt — even slightly crumpled, even under supermarket fluorescent lighting — and its OCR engine instantly extracts the tax-relevant data: date, supplier, pre-tax amount, VAT rate, total including VAT. That data is linked to the document, archived, and immediately usable by your accountant with zero manual re-entry.

The physical receipt can then go wherever it wants — in the bin, in a pocket, in the van's cab. It has done its job. The data is captured, structured, and safe. Your bank statement confirms the movement of money. ScanCompta proves what that movement actually represents. It is the combination of both that makes an audit-proof accounting file — not one without the other.

If a tax audit ever comes, it becomes a formality: you have exactly what the inspector is asking for, in the format they expect, covering the entire period in question. No cold sweats. No boxes to rummage through. No bank statements brandished as proof when they are anything but.

Article written on the basis of French tax and accounting regulations in force as of 1 September 2026. For any personal situation, please consult a certified accountant or approved tax advisor.