What if I cannot find the maximum value?

Filers with fewer than 25 accounts who cannot determine whether the aggregate maximum values exceeded $10,000 complete the account section for each account and check the "amount unknown" box, item 15a.

Can I use monthly statements instead of every transaction?

FinCEN allows periodic statements if they fairly reflect the maximum value during the year. A balance that spiked mid-month would not show on a month-end statement, so a transaction export with a running balance is the safer source.

How to find the FBAR maximum account value, step by step

The FBAR asks for each foreign account's maximum value during the calendar year, in US dollars. FinCEN's method has two steps: find the greatest balance in the account's own currency, then convert it at the Treasury rate for December 31 and round up to the next whole dollar. Here is each step, with a worked example from the site's sample statements (2025).

Open the fbar maximum value finder

Step 1: the greatest balance, in the account's currency

FinCEN: "The maximum value of an account is a reasonable approximation of the greatest value of currency or nonmonetary assets in the account during the calendar year. Periodic account statements may be relied on if they fairly reflect the maximum account value. Each account is valued separately."

In practice: export the year's transactions with a running balance (most banks and Wise offer CSV), and look for the highest balance after any line. Include the balance you held on January 1: if it was the highest, it is the maximum. Value each account separately, even at the same bank.

Step 2: convert at the December 31 Treasury rate

Convert the maximum account value of each account into US dollars at the Treasury's rate for the last day of the calendar year. The Treasury rate is foreign units per dollar, so dollars = balance / rate. It is the rate for December 31, not the rate on the day of the peak. If no Treasury rate is available, use another verifiable exchange rate and provide the source of that rate.

Step 3: round up, then add the accounts

Record all amounts as U.S. Dollar amounts rounded up to the next whole dollar. The amount $15,265.25 would be recorded as $15,266. If the value results in a negative (minus) value, enter zero (0) in item 15, Maximum account value. Add the rounded values of all accounts: an FBAR is due when the total is over $10,000.

Worked example (Sample data)

Sample data: two made-up accounts, 2025, Treasury rates of December 31, 2025
Account	Peak	Date	Rate	US$	Item 15
Sample current account	10,030.40	Aug 29, 2025	0.851	$11,786.60	$11,787
Sample GBP balance	2,390.10	May 1, 2025	0.743	$3,216.82	$3,217

Aggregate: $15,004, over $10,000, so an FBAR is due for 2025. The maximum value finder does these three steps on your own statement files, in your browser.

Frequently asked questions

How is the FBAR maximum account value calculated?: The maximum value of an account is a reasonable approximation of the greatest value of currency or nonmonetary assets in the account during the calendar year. Periodic account statements may be relied on if they fairly reflect the maximum account value. Each account is valued separately. Convert the maximum account value of each account into US dollars at the Treasury's rate for the last day of the calendar year.
Do I round up or down?: Record all amounts as U.S. Dollar amounts rounded up to the next whole dollar. The amount $15,265.25 would be recorded as $15,266.
What if the account was overdrawn all year?: If the value results in a negative (minus) value, enter zero (0) in item 15, Maximum account value.
What if I cannot find the maximum value?: Filers with fewer than 25 accounts who cannot determine whether the aggregate maximum values exceeded $10,000 complete the account section for each account and check the "amount unknown" box, item 15a.
Can I use monthly statements instead of every transaction?: FinCEN allows periodic statements if they fairly reflect the maximum value during the year. A balance that spiked mid-month would not show on a month-end statement, so a transaction export with a running balance is the safer source.

FBAR for a Wise multi-currency account
A Wise account holds several currency balances: download one statement per balance, find each peak, convert at the Treasury rate and report the account.
FBAR exchange rates 2019-2025: the Treasury December 31 rates
The Treasury Reporting Rates of Exchange as of December 31 for 2019 to 2025, for EUR, GBP, CAD and 21 more currencies, and how the FBAR uses them.
FBAR deadline 2026: October 15 automatic extension
The 2025 FBAR was due April 15, 2026 and is extended automatically to October 15, 2026, no request needed. Where to file, and what to do for past years.

Last updated 2026-09-30. Finds the highest balance in the statements you load and converts it at the Treasury Reporting Rate of Exchange for the year. Not tax or legal advice. You file the FBAR yourself, free, on FinCEN's BSA E-Filing System. Not affiliated with FinCEN, the IRS, the US Treasury or Wise.