Work one category at a time
Passive, general, foreign branch, treaty-resourced, section 901(j), and lump-sum categories keep separate carryover ledgers. Do not combine them.
Track unused foreign tax credits by origin year and income category. Reconcile Form 1116 line 10, the 1-year carryback, 10-year carryforward, expiration, and Schedule B (Form 1116).
Privacy-first: do not enter names, SSNs, addresses, account numbers, or tax documents. The calculator only needs tax-year amounts and categories.
Passive, general, foreign branch, treaty-resourced, section 901(j), and lump-sum categories keep separate carryover ledgers. Do not combine them.
Enter each surviving balance by its original tax year. The tool shifts those balances into current-year Schedule B line 1 and uses the oldest eligible bucket first.
If Form 1116 shows a $500 reduction on line 12, enter 500, not -500. The tool subtracts it: line 9 − line 12 + line 13.
Current-year excess foreign tax is first tested for the 1-year carryback. Only the remainder becomes a new 10-year carryforward.
Choose the path that matches the records you actually have. The tool does not guess the full §904 limitation from gross income; it works from prepared Form 1116 amounts.
Carryovers are separate by category. Do not combine passive, general, foreign branch, treaty-resourced, or other applicable categories.
Enter the ending carryover by origin year. Zero balances can stay blank or zero.
No Schedule B? Use instead.
Enter line 12 as the positive dollar amount shown as a reduction on Form 1116. The tracker computes line 9 − line 12 + line 13 before comparing the result with line 23.
If this year generates excess foreign taxes, the tool will not silently assume the required prior-year carryback is zero.
For amended returns and practitioner reconciliation: Schedule B line 2a carryback adjustments, §905(c) redeterminations, domestic audit adjustments, or other documented changes.
Free · no account · no email
Signs follow the IRS schedule: lines 4, 5 and 7 are negative. Column (xiv) is the total.
Include every tax year in the range, even a year with no foreign income or no credit. The engine needs the continuous history to age carryovers correctly.
Use the same category for every year in this reconstruction. Enter every line 12 reduction as a positive amount. Run another reconstruction for a different category.
| Tax year | Line 9 | Line 12 | Line 13 | Line 23 | Credit / deduction |
|---|
| Year | Current taxes | Limitation | Carryover used | Carryback | Expired | Ending carryover |
|---|
Form 1116 determines the current-year foreign tax credit limitation. Schedule B then keeps the unused tax connected to its income category and origin year so the oldest eligible balance is used first and the 10-year window can be tracked.
For the selected category, the tracker compares current foreign taxes available for credit from lines 9, 12 and 13 with the limitation on line 23.
If the current year has excess limitation, eligible prior-year carryovers are absorbed from the earliest origin year first.
If current foreign taxes exceed the limitation, the excess is tested for a 1-year carryback before the remaining amount moves into the 10-year carryforward window.
The tool shows the opening balance, adjustments, amounts used, amounts expired, new carryover, carryback and ending balance by origin year.
Line 10 is where eligible foreign taxes from another tax year enter the current Form 1116. A single rolled-forward total can hide which origin year was used, expired, adjusted, or carried back. This tracker rebuilds the schedule behind that number.
You moved from TurboTax or another program and prior carryover history did not transfer cleanly.
The total balance looks fine, but part of it originated 10 years ago and needs to be identified separately.
A §905(c) redetermination or another adjustment changed a prior-year bucket.
Passive and general category credits were mixed together even though they require separate limitation and carryover tracking.
The professional view is designed for review, not black-box tax estimation. It exposes each origin year and the exact Schedule B lines used to arrive at the ending carryover.
Compare the Schedule B line 3 total with the amount already reported on Form 1116 line 10.
See which year was consumed, which balance expired, and what remains available for future years.
Document carryback differences, §905(c) redeterminations, domestic audit adjustments, and other changes.
Cases outside the automated scope are flagged for review instead of being forced through a simplified formula.
For many Form 1116 categories, unused qualified foreign tax is carried back first to the immediately preceding tax year and then carried forward for up to 10 tax years. The carryforward period does not pause just because there is no room to use the credit in an intervening year.
Start with the prior-year Schedule B (Form 1116), line 8, for the same income category. If you do not have a Schedule B, rebuild the history from prior Forms 1116 and filed returns before relying on a single unexplained carryover number.
Schedule B is the Foreign Tax Carryover Reconciliation Schedule. It tracks opening carryovers, adjustments, utilization, expiration, current-year excess foreign tax, carryback and the amount remaining for following years.
Yes. A foreign tax credit carryforward generally has a 10-year carryforward window after the origin year. Tracking only the grand total is not enough because older buckets expire before newer ones.
No. Form 1116 uses separate limitation categories. Carryovers must stay with the applicable category, so passive and general category histories should be tracked independently.
No. The Form 1116 instructions state that foreign tax carrybacks and carryovers are not allowed for section 951A category income.
For an applicable category, Schedule B is generally required when there is a prior-year carryover, a carryover generated in the current year, or both. A narrow carryback-only situation can be different, so check the current Form 1116 instructions for your filing year.
Line 10 includes eligible unused foreign taxes carried from another tax year. For a prior-year carryover, Schedule B line 3, column (xiv), provides the adjusted carryover amount used in the Form 1116 calculation, with special treatment for carrybacks into an amended current year.
The general §904(c) ordering is carryback first to the immediately preceding tax year and then carryforward to the next 10 tax years. The tracker therefore does not automatically treat the carryback as zero when the current year generates excess foreign taxes.
It can help reconstruct the ledger if you have the prior Forms 1116, Schedule B schedules, or reliable filed-return amounts. The result should be compared with the filed returns and any amended returns before it is used on a new return.
No. That is deliberate. The tool takes the relevant prepared Form 1116 amounts and focuses on the carryover ledger. Full Form 1116 limitation work can involve deduction allocation, capital gain and qualified dividend adjustments, Form 2555 interaction, AMT, treaty resourcing and other rules outside this tracker.
Yes. The professional output exposes origin-year balances, Schedule B lines 1–8, line 10 reconciliation and documented line 2 adjustments. Practitioners should still review the client's facts and the current IRS instructions.
Last reviewed: October 6, 2026 · Current production Form 1116 source set: tax year 2025.
Missing records, filing-status changes, foreign tax redeterminations, AMT, treaty sourcing, or a complete return may need professional review.
We understand the sensitive nature of international tax and foreign tax credit records. This tool adheres strictly to data minimization and stateless computation principles:
Explore additional zero-storage utilities or connect with licensed tax professionals for international filing support.