If you are about to open an account, take out a loan or make some other type of financial transaction, you may have to take some extra time to prove your identity.

Under new rules intended to help fight terrorism, you will have to provide documentation including your date of birth and tax identification number. Your driver’s license or passport may also be required. If you are a foreign national and don’t have a U.S. taxpayer ID, you can provide similar government issued identification, such as a passport number.

In addition, the institution may check your credit report to make sure you are the real thing.

The type of identification required may depend on what type of account you’re opening. Of course, procedures do vary from bank to bank. But be prepared to take some additional time to prove your identity.

These new rules were issued by the U.S. Treasury Department and several federal financial regulatory agencies.