If you hold an account with Bank Mandiri and file taxes in the United States, your statements do double duty: they are your bank record and your tax evidence. Bank Mandiri statements for tax filing give you the balances, the income, and the dates that a US return and a foreign-account report both ask for — but only if you gather them before tax season starts. This guide shows which statements to pull, how to handle the rupiah-to-dollar conversion, and what to keep for your records.
Bank Mandiri is one of Indonesia's largest banks, and many US filers hold an account there from work, family, or a move abroad. The US taxes its citizens and residents on worldwide income, so interest and other income in a Mandiri account belongs on the return even though the bank is overseas. The statements are the source document for those numbers. For the general routine, see our guide to quarterly tax due dates for 2026, and for the statement format itself, see the Bank Mandiri bank page.
Bank Mandiri Statements for Tax Filing: What to Gather
Pull the full year: twelve monthly statements with no gaps, from January through December. Each statement shows the opening and closing balance, every deposit and withdrawal, and the interest credited for the month. Check that the closing balance of one month matches the opening balance of the next; a gap means a missing month, and a missing month means an incomplete record.
Download the statements as PDFs from Mandiri's online banking or mobile app, and save them under clear names such as mandiri-savings-2026-01.pdf. If a statement is password-protected, open it with the password and save an unlocked copy for your own records — a locked file cannot be converted or searched. Keep the originals untouched: the PDF is the evidence, and any spreadsheet you build from it is a working copy.
Bank Mandiri Statements for Tax Filing in US Dollars
US returns are filed in dollars, so every rupiah figure needs a conversion. The IRS accepts the yearly average exchange rate for income received evenly through the year, and the spot rate on the transaction date for one-off items — pick the method that fits each item and use it consistently. Record the rate you used next to each figure, so a preparer or an auditor can follow the math without guessing.
A spreadsheet is the practical tool here: one row per month, with opening balance, closing balance, deposits, withdrawals, and interest in both rupiah and dollars. Convert the PDF statements with our bank statement to Excel converter, check the monthly totals against the PDFs, and mark transfers between your own Mandiri accounts so the same money is never counted twice as income. Our guide to choosing a bank statement converter covers the same accuracy checks.
Foreign Account Reporting: FBAR and Form 8938
Beyond the tax return itself, US persons with foreign accounts face two reports. The FBAR (FinCEN Form 114) is due if the combined value of all foreign financial accounts exceeded $10,000 at any point in the year; it is filed separately from the return, due April 15 with an automatic extension to October 15. Form 8938 attaches to the tax return itself when foreign assets pass a higher threshold that depends on filing status and residence. Your Mandiri statements supply the highest balance for each account, which is the number both reports ask for.
The common mistake is forgetting an account: a savings account, a time deposit, and a joint account all count toward the FBAR total, and the highest balance of each is what matters, not the year-end figure. Work from the statements month by month, note the highest balance each account reached, and keep the statements with the return for at least three years. If the rules feel unclear, a tax professional who handles expat returns can confirm which forms apply to you — this guide is general information, not tax advice.
Common Problems and Fixes
Statements in a foreign language or with unfamiliar codes slow the work down, so translate the key labels once and keep a small glossary with the file: deposit, withdrawal, interest, fee, transfer. If a month is missing from the app, request it from the bank before the year closes — older statements can take weeks to retrieve. And if the PDF is a scanned image rather than a real PDF, a clean straight scan converts far better than a crooked phone photo.
The other frequent snag is interest that arrives in a lump at year end: it still belongs in the year it was credited, and the statement month that shows it is the record. Record it in that month's row, convert it at the right rate, and move on. Small errors compound when a preparer has to guess, so a tidy file with every month present and every figure converted is the best gift you can give your tax return.