What is the reference number (viitenumero) on a Finnish bill?
Why you should always copy the reference number.
Short answer
Finnish bills usually show a reference number, viitenumero. Finance Finland's credit transfer guide explains that the invoicer uses it to identify the bill, and a payment with the reference goes to the payee's account for referenced payments. The number can follow the Finnish standard or the international RF standard. If you fill in both a message and a reference, only the reference is passed on. So copy the reference exactly.
Why
- Finance Finland's guide describes the reference number on the credit transfer form.
- The guide says message and reference are mutually exclusive.
- The international RF reference follows ISO 11649.
Details
Finnish reference numbers have a check digit at the end, so a typing mistake is usually caught by the bank.
Tip
Many bills also have a barcode or QR code. Scanning it fills in the account, amount, reference and due date.
What may differ
Some payees ask for a message instead of a reference. Follow the instructions on the bill.
Common misconception
You can write the bill number in the message instead of the reference.
What actually happens
Without the reference the payment may not be matched to your bill.
People also ask
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Sources
- Finance Finland: credit transfer form guideChecked at:
- Finance Finland: credit transfer guidelinesChecked at:
This answer is for reference only. Payment rules and fees change, so check the official sources or your bank before you pay.
Practical: communication, money, servicesRelated questions
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Can a company charge for a paper bill in Finland?
It can be allowed.
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How many people in Finland are in debt enforcement?
According to the National Enforcement Authority (Ulosottolaitos), private persons made up about 91% of all debtors in 2025, about 550,000 people, an increase of 4% from the year before.
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Has the digital euro been approved?
Not yet.
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When does the digital euro pilot start?
The Bank of Finland announced on 14 July 2026 that the Eurosystem's digital euro pilot starts in the second half of 2027 and lasts 12 months.

