Why is my payment QR code not scanning? Causes and fixes

You generated a SEPA payment QR code, but it will not scan or the banking app shows an error? In the vast majority of cases it is one of a few simple, easy-to-fix causes. Let's go through them.

1. The payer's bank does not support scan-to-pay

The most common cause: your code is correct, but the banking app trying to scan it does not have the scan-to-pay feature (the EPC standard). Support varies between banks. Fix: ask the payer to check whether their app has a "scan to pay" option, or try another bank. More in what GiroCode and the EPC standard are.

2. Invalid IBAN or wrong data

If you generated the code with a wrong IBAN, many apps reject it. Use a generator that validates the IBAN (checksum), as the getQR generator does. If the code scans but shows wrong details, it was generated with an incorrect beneficiary/IBAN/amount — regenerate it.

3. The image is too small, blurry or low-contrast

A code that is too small, pixelated or on a coloured background is hard to read. Simple rules:

• At least ~2.5-3 cm when printed;
• Dark code on a light background (good contrast);
• A white margin (quiet zone) around the code;
• Do not distort the image — keep it square.

4. A currency other than euro

SEPA/EPC codes are for euro transfers only. If you try to encode another currency, the code either does not generate correctly or gets rejected. Use EUR.

5. Data too long (over the standard limit)

The EPC standard allows a maximum of 331 bytes. If the beneficiary name or payment details are very long, the code can become invalid. Shorten the text. A good generator warns you when you exceed it.

Conclusion

Most of the time the problem is either the payer bank's support or the image quality — not the code itself. Generate a valid code, large enough and with good contrast, using the SEPA payment QR code generator, and verify it by scanning. See also how to put a QR code on an invoice correctly.