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IBAN format of Mongolia: 20 characters, starts with MN

An IBAN of Mongolia is 20 characters long and begins with MN. Here is what each part means, a made-up example, and how to check one.

Made-up example (not a real account)

MN18 1234 5678 9012 3456

  • MNCountry
  • 18Check digits
  • 1234Bank code
  • 567890123456Account number
Length
20 characters
Starts with
MN
After the check digits
4 digits, then 12 digits
Single Euro Payments Area (SEPA)
No
Layout code in the registry
MN2!n4!n12!n

Part by part

PositionPartMade ofIn the example
1 to 2Country code2 capital letters: MNMN
3 to 4IBAN check digits2 digits18
5 to 8Bank code4 digits1234
9 to 20Account number12 digits567890123456

The parts with a name here are: Bank code, account number. The bank decides the bank code and the account number; you never have to work them out yourself. The layout code MN2!n4!n12!n is how the registry writes this: a number, then n for digits, a for capital letters or c for letters or digits.

How to check an IBAN of Mongolia

  1. Count the characters without spaces. There must be exactly 20.
  2. The first two must be MN, and the next two must be digits.
  3. After those four, the rest must follow the layout: 4 digits, then 12 digits.
  4. Run the check-digit test. The IBAN checker does all four steps for you and shows which one fails.

Writing it down

On paper, an IBAN is written in groups of four characters with spaces, as in the example above, so that it is easier to read and compare. In online banking and in files it is entered without spaces. Both forms are the same IBAN. Letters are always capitals.

How it compares

At 20 characters, it sits between the shortest IBAN in the registry (Norway, 15 characters) and the longest (Russia, 33 characters). The same length is used by Austria, Bosnia and Herzegovina, Estonia, Kazakhstan, Kosovo, Lithuania, Luxembourg, each with its own layout. After the country code it has digits only.

Common questions

How many characters does an IBAN of Mongolia have?

An IBAN of Mongolia always has 20 characters: the letters MN, two check digits and 16 more characters for the bank and the account.

What does an IBAN of Mongolia start with?

It starts with MN, the country code, followed by two check digits.

Is Mongolia in SEPA?

No. Mongolia uses IBAN but is not part of the Single Euro Payments Area.

Layout checked in November 2026 against the SWIFT IBAN Registry data. The example is made up. For a payment, use only the IBAN given by the account holder or the bank, and check with the bank if in doubt.

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