Portugal 25 charactersNational check computed
PT50585784923003011604568
- Country code
- PT
- IBAN check digits
- 50
- Bank code
- 5857
- Branch code
- 8492
- Account number
- 30030116045
- National check
- 68
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Fake Portuguese IBAN generator
Generate test IBANs for Portugal with valid check digits and a correct national check. Each number follows the official 25-character structure but belongs to no real account.
Bulk generation
Up to 1,000 IBANs for the selected country, exported as text, CSV, JSON or XML.
Portuguese IBAN structure
A Portuguese IBAN has 25 characters: the country code PT, two check digits, then the BBAN, which is made up of the following: 4-digit bank code, 4-digit branch code, 11-digit account number and 2 national check digits; together they form the 21-digit NIB.
| Position | Length | Content | Example |
|---|---|---|---|
| 1–2 | 2 letters | ■ Country code | PT |
| 3–4 | 2 digits | ■ IBAN check digits | 50 |
| 5–8 | 4 digits | ■ Bank code | 5857 |
| 9–12 | 4 digits | ■ Branch code | 8492 |
| 13–23 | 11 digits | ■ Account number | 30030116045 |
| 24–25 | 2 digits | ■ National check | 68 |
Good to know
Because the NIB check digits make the whole NIB equal to 1 modulo 97, every valid Portuguese IBAN starts with PT50. A Portuguese IBAN with other check digits is a quick sign of an error. This generator computes the NIB digits, so all its Portuguese IBANs start with PT50.
To check an existing IBAN, use the validator on the home page.
Frequently asked questions
Portugal: are these real IBANs?
No. The bank and account codes are random. The IBAN passes format and check-digit validation, but no bank or account holder is behind it, and a transfer would be rejected.
Portugal: how many characters does an IBAN have?
Always 25: PT, two check digits and a 21-character BBAN. Any other length is invalid.
Portugal: do the IBANs pass national checks?
Yes. On top of the IBAN check digits, the generator computes the national check, so the numbers pass both.