How to digitize receipts: formats, workflow and mistakes to avoid

In short: To digitize receipts, scan each paper receipt as a PDF, record the date, merchant and amount, and file the document so you can find it within seconds. PDF is the right format, one receipt per file is the right rule, and the biggest mistakes are unnamed photos in your camera roll and receipts that only get scanned months later.

Paper receipts are a poor archive. They fade, they vanish into jackets and cars, and when you need them they are in the wrong box. Digitizing solves this, but only if you do it properly. A folder full of photos called IMG_4821.jpg is digital, but it is no better than the box.

This article explains how to digitize receipts, which formats have proven themselves and which mistakes most people make along the way. It applies to private individuals as much as to self-employed people who hand their receipts to an accountant.

What does digitizing receipts actually mean?

Digitizing means turning a piece of paper into a file that reproduces the receipt completely and permanently, and that you can locate on purpose. The photo alone is only the first part.

A fully digitized receipt has four properties:

• Legible: Date, merchant, amount and what was purchased are clearly visible in the image.
• Complete: The whole receipt is captured, including the total and any relevant back side.
• Described: The file carries the date, merchant and amount in its name or metadata.
• Filed: It lives in a place with a system, not in the general photo library.

If any of these is missing, you have a photo, not a digital receipt.

Which format is right for digital receipts?

PDF. For receipts, there is no serious reason to use anything else. Most accounting tools, accountants and authorities expect PDF, and the format has remained reliably readable for decades.

Why PDF is the standard in bookkeeping and how to convert photos is explained in Converting receipts to PDF. Apps such as Belego save every scan directly as a PDF, cropped and straightened, so there is nothing to convert.

Digitizing receipts in four steps

The workflow is short: scan, check, record, file. If you stick to it, each receipt takes less than a minute.

1. Scan as soon as the receipt is in your hand. Right at the till, or at the latest that evening. Receipt flat on a dark surface, photograph from above, no flash. The basics are in How to scan receipts with your phone.
2. Check before moving on. Total legible? Date legible? Merchant legible? If any answer is no, scan again.
3. Record date, merchant, amount and category. Either by hand in the file name (for example 2026-03-14 Digitec 189.00 Printer.pdf) or automatically. Belego reads the fields and leaves blank whatever it cannot recognise with confidence, so you only fill the gaps instead of typing out the whole receipt.
4. File it somewhere with a system. One folder per year with subfolders per category, or an app with search and categories. A folder structure that your accountant will understand too is shown in Filing receipts digitally.

If you have a backlog, say a shoebox of receipts from two years, the same workflow applies, just in one block: sort receipts by date, reserve an afternoon, scan everything, then record. The guide for that is A shoebox full of receipts: cleared in one hour.

What mistakes do most people make when digitizing receipts?

Most mistakes happen not during scanning but before and after it. Here are the six most common ones, each with its fix:

• Scanning too late. Thermal paper fades. A receipt that spent three months in the car is often unreadable. Fix: scan immediately.
• Photo instead of PDF. The JPG lands in the photo library between holiday pictures. Fix: a scanner app that produces PDFs and stores them separately.
• Several receipts in one image. Later it is unclear which amount belongs to which purchase. Fix: one receipt per file, no exceptions.
• No naming. Twenty files called Scan_001 to Scan_020. Fix: date, merchant and amount in the name, or an app that does this automatically.
• Total cut off. The receipt is long and the photo ends before the total. Fix: check the preview, fold away item lines if needed, but keep the total visible.
• No backup. Phone lost, receipts gone. Fix: export regularly. Belego bundles all receipts of any period into a ZIP with PDFs and a CSV list, which doubles as your backup.

Can you throw the paper away after digitizing?

Privately, yes; for business, under conditions. As a private person you need receipts for warranty, returns and taxes, and in practice a complete, legible scan is enough for all of those.

Anyone required to keep accounts in Switzerland must retain accounting records for ten years (Art. 958f of the Swiss Code of Obligations). Electronic storage is permitted if the records can be made readable at any time and have not been altered. A clean PDF scan generally meets that requirement. Exceptions are documents with an original signature, such as contracts, and receipts where a dispute is foreseeable. The details of the retention period and its requirements are in How long to keep receipts in Switzerland. In Germany, the GoBD rules add their own requirements for replacement scanning.

Practical recommendation: dispose of small receipts after scanning, and keep receipts above a few hundred francs and anything signed in a physical folder as well.

How do digital receipts stay usable in the long run?

Digital receipts are only better than paper if they can still be opened and found ten years later. That takes three rules.

First, an open format: PDF, not a proprietary database format that only one particular app can read. Second, an export that works without the app. Belego exports the original PDFs named by date, merchant and amount, plus a CSV with category and note and a README file, so anyone can understand the collection even without the app. Third, copies in two places, for example on your phone and in a folder on your computer or an external drive.

If you follow these three rules, your receipt archive stays under your control, regardless of which app still exists in five years.

Frequently asked questions

Can I digitize receipts without an app?

Yes. A flatbed scanner or the scan function in the iPhone Notes app also produces PDFs. The difference is the effort afterwards: without an app you have to name every receipt by hand and move it into a folder. With a few receipts a month that is manageable; with several a week it becomes the task you keep postponing. At that point an app that extracts amount, date and merchant itself pays off.

How do I digitize receipts that have already faded?

Scan them anyway, with high contrast and no flash; often more is legible than the naked eye suggests. If the total is no longer recognisable, a bank statement or credit card statement can serve as supporting evidence, and for larger purchases the retailer can often issue a copy given the purchase date and amount. The more important lesson: scan immediately in future.

Are digital receipts accepted in a tax audit?

In Switzerland, scanned receipts are generally accepted if they are complete, legible and unaltered. What matters is that the date, the goods or service, the amount and the issuer are visible. For bookkeeping, the receipts must additionally remain available for the entire retention period. If you are unsure about a specific case, ask your Treuhänder (the Swiss term for a trustee or accountant) or the cantonal tax office.

What about e-receipts and invoices I receive by email?

They are already digital, but usually in the wrong place. Save the PDF from the email directly into your receipt system, using the same naming scheme as your scanned receipts. An e-receipt from a retailer's app can be exported as a screenshot or PDF and filed the same way. The rule stays the same: one place for all receipts, wherever they come from.