Foreign tax credit calculator that sizes your limitation and excess.

Calculate the US foreign tax credit limitation, credit allowed, and excess credits available for carryforward under IRC Section 904.

Direct answerThis tool calculates the IRC Section 904 foreign tax credit limitation by comparing foreign taxes paid to the FTC limit based on the ratio of foreign-source to worldwide income.
Section 904 limitationCredit vs deductionBuilt for international tax

1. Enter income and tax data

Calculator

Select the income category, enter foreign-source and worldwide income, foreign taxes paid, and US tax. Or load the sample scenario.

Enter assumptions or load a sample scenario to see the results.

Foreign Tax Credit Calculator in the browser

The functional tool stays first: enter your foreign income and tax data, review the result, and only then scroll into the guide below.

Privacy-first workflow

This page runs in the browser and does not upload any data.

What this tool is built to solve

A foreign tax credit calculator computes the IRC Section 904 limitation by comparing foreign taxes paid to the FTC limit based on the ratio of foreign-source to worldwide income.

FTC positions sized without the limitation formula

Apply the Section 904 ratio to see the actual credit cap before filing.

Excess credit carryforwards left untracked

Identify excess credits available for carryforward and plan utilization.

Credit vs deduction decisions made without data

Compare the credit benefit to the deduction alternative with real numbers.

FTC limitation formula

Apply the Section 904 ratio of foreign-source income to worldwide income against US tax to size the credit cap.

Basket-level tracking

Calculate the limitation separately for general and passive category income as required by the Code.

Carryforward sizing

Identify excess foreign tax credits available for carryforward to future tax years.

Rate comparison

Compare the effective foreign tax rate to the US rate to understand the credit versus limitation position.

How to use the foreign tax credit calculator well

This section is written for searchers, answer engines, and busy international tax teams: direct definitions, practical steps, and concrete follow-up guidance.

What it is

A foreign tax credit calculator computes the IRC Section 904 limitation by comparing foreign taxes paid to the FTC limit based on the ratio of foreign-source to worldwide income.

Who it is for

International tax directors, corporate tax teams, tax advisors, and controllers managing cross-border tax positions.

What matters most

Foreign-source income, worldwide taxable income, foreign taxes paid, and the US tax liability before credits are the main drivers of the FTC limitation.

Four practical steps

Use the tool as a fast decision layer. The goal is to move from raw tax data to a sized FTC position before you finalize the provision or the return.

1
Select the income category.

Choose general or passive category to match the FTC basket for this calculation.

2
Enter foreign-source and worldwide income.

Provide taxable income from foreign sources and total US taxable income including domestic and foreign.

3
Enter foreign taxes paid and US tax before credits.

Add the income taxes paid to foreign governments and the US tax liability before applying the FTC.

4
Review the limitation, credit allowed, and excess position.

Check the FTC cap, the credit that can be used this year, and any excess credits for carryforward.

What reviewers usually validate first

These are the areas teams usually discuss first once the foreign tax credit calculation is visible.

Source of income rules

Confirm that income has been sourced correctly under the IRC rules before applying the limitation formula.

Basket allocation

Verify that income and taxes are allocated to the correct FTC basket (general vs passive) to avoid cross-crediting issues.

Creditable tax analysis

Ensure that foreign taxes meet the creditability requirements under Section 901 and the 2022 final regulations.

Expense allocation

Check that expenses have been properly allocated and apportioned to foreign-source income under Section 861.

Carryforward tracking

Track excess credits by year and basket to ensure proper utilization within the carryforward period.

Credit vs deduction election

Evaluate whether electing to deduct foreign taxes instead of crediting them produces a better overall result.

Built to close the gap between a formula and a sized FTC position

Most search results either define the foreign tax credit or sell a larger platform. This page solves the immediate job first: use the tool, see the answer, and understand what it means before you move into a deeper international tax workflow.

Calculator first

The functional tool stays on top so users can solve the immediate problem before reading a guide.

Interpretation included

The result cards explain what the output means instead of leaving users with a raw number.

Useful before a custom build

Ledger Summit can build richer international tax tooling later, but this page delivers value now.

Foreign tax credit calculator questions, answered directly

Written in short form so searchers can get a clear answer without digging through generic product copy.

A foreign tax credit calculator computes the IRC Section 904 limitation by comparing foreign taxes paid to the FTC limit based on the ratio of foreign-source to worldwide income.

International tax directors, corporate tax teams, tax advisors, and controllers managing cross-border tax positions.

Foreign-source income, worldwide taxable income, foreign taxes paid, and the US tax liability before credits are the main drivers of the FTC limitation.

No. The page runs the calculator in your browser and does not require a file upload for the base workflow.

Yes. If you need a richer model, recurring workflow automation, or an internal production version, Ledger Summit can build it around your process.

Need this connected to a broader workflow?

Use the free browser tool first. If you need a richer model, reporting automation, or an internal production version, Ledger Summit can build the next layer around your process.

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