Validating bank account numbers

[rdonnay]

Does anyone have Xbase++ code for validating a bank account number using the check digit algorithm?

I'm not sure if the Luhn algorithm is correct for validating bank accounts.
It claims that account numbers are 9 digits or greater yet many of the accounts in our database are only 8 digits.

[k-insis]

Just to clarify: You are seeking checker for US bank acc number or standard iBAN transaction account ?

Does anyone have Xbase++ code for validating a bank account number using the check digit algorithm?

I'm not sure if the Luhn algorithm is correct for validating bank accounts.
It claims that account numbers are 9 digits or greater yet many of the accounts in our database are only 8 digits.

[rdonnay]

You are seeking checker for US bank acc number or standard iBAN transaction account ?

Actually, all of our bank transactions are with US banks so I really don't need an IBAN validation, however, I may need to go that route if I can't find an easy way to validate a US bank account.

[skiman]

Hi Roger,

Have you already used that algoritme for your account numbers with 8 digits? The Luhn algoritme should work with any length.

[rdonnay]

The Luhn algoritme should work with any length.

I will give it a try. Thanks.