How to Digitize Paper Receipts and Store Them Correctly
Going paperless only works if you do it correctly. Here's the exact process for scanning, storing, and retiring paper receipts in a legally sound way.
The promise of going paperless is real: no more shoeboxes, no more panic during audits, no more lost receipts from the bottom of a bag. But “scan and throw away” is only GoBD-compliant if you do it correctly. Done wrong, you could find yourself without valid documentation for deductions you legitimately claimed.
What GoBD Says About Digitizing Paper
GoBD explicitly addresses the digitization of paper documents in its section on replacement scanning (ersetzendes Scannen). The rules are specific.
The scan must produce a true-to-original reproduction. The original document’s content, format, and legibility must be fully preserved in the digital copy. A blurry or cropped photo of a receipt does not meet this standard.
The digitization process must be documented. You need a brief process documentation (Verfahrensdokumentation) explaining how you digitize documents: what scanner or app you use, what format you save in, and how you verify the quality.
Once digitized correctly, paper originals may generally be destroyed. The exception is documents with specific legal retention requirements in their physical form (certain civil law documents, notarized contracts). For routine business receipts and invoices, destruction after correct digitization is permitted.
The digital copy must be stored immutably. Once saved, the file cannot be modified. A folder on your desktop where you can freely edit files does not qualify.
The Correct Digitization Process
Step 1: Use adequate equipment. A flatbed scanner or a good document scanning app (Microsoft Lens, Adobe Scan, or similar) produces better results than a quick camera photo. Resolution should be at least 200 DPI, preferably 300 DPI. The entire document must be visible with no clipping.
Step 2: Capture immediately. GoBD requires timely recording. For receipts, digitize the same day or within a few days. Don’t let paper accumulate for weeks before scanning.
Step 3: Verify the result. Before setting aside or destroying the paper, open the digital copy and confirm it’s legible, complete, and correctly oriented. Check that amounts, dates, and vendor details are clear.
Step 4: Store correctly. The digital file goes into a system that prevents modification and maintains an audit trail. Simply saving to a folder on your computer doesn’t create an audit trail. Purpose-built document management tools or platforms like KontoMatch, which log the upload timestamp and prevent post-upload modification, meet these requirements.
Step 5: Document your process. Keep a simple process documentation (Verfahrensdokumentation). A one-page document describing your scanner or app, the file format you use (PDF is standard), the resolution, and where files are stored is usually sufficient.
Smartphone Apps That Work
For most freelancers, a smartphone scanning app plus a GoBD-compliant storage platform is the practical solution.
Apps that produce adequate quality: Microsoft Lens (free, excellent document correction), Adobe Scan (free with Adobe account), and iOS’s built-in document scanner in the Notes or Files app. These apps apply perspective correction and enhance legibility, which produces better results than a plain camera photo.
The app produces the scan; the storage platform handles the GoBD compliance requirements (immutability, audit trail, retention period).
What You Can Throw Away (and When)
Once a paper receipt has been correctly digitized and stored, you can destroy the paper original. The 10-year retention obligation applies to the digital copy, not the paper.
Practically, most businesses keep paper originals for a short period (30-90 days) as a buffer while their digitization routine becomes established. Once you’re confident in your process, same-day or next-day destruction of paper after scanning is both legal and practical.
What You Cannot Throw Away
Certain documents must be retained in their original physical form regardless of digitization: notarized documents and certified copies, original contracts that have been signed in wet ink where the signature carries legal significance, and documents that are original bearer instruments.
For typical business receipts such as shop receipts, printed invoice PDFs, and delivery notes, digitization and destruction is fine.