Foreign-Source Income
You must report unearned income, such as interest, dividends, and pensions, from sources outside the United States unless exempt by law or a tax treaty. You must also report earned income, such as wages and tips, from sources outside the United States.
If you worked abroad, you may be able to exclude part or all of your foreign earned income. For details, see Pub. 54 and Form 2555.
Foreign retirement plans.
If you were a beneficiary of a foreign retirement plan, you may have to report the undistributed income earned in your plan. However, if you were the beneficiary of a Canadian registered retirement plan, see Rev. Proc. 2014-55, 2014-44 I.R.B. 753, available at IRS.gov/irb/2014-44_IRB#RP-2014-55 , to find out if you can elect to defer tax on the undistributed income.
Report distributions from foreign pension plans on lines 5a and 5b.
Foreign accounts and trusts.
You must complete Part III of Schedule B if you:
Had a foreign account; or
Received a distribution from, or were a grantor of, or a transferor to, a foreign trust.
Foreign financial assets.
If you had foreign financial assets in 2025, you may have to file Form 8938. See Form 8938 and its instructions.