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Best rolling 12-month window finder

Find the consecutive 12-month period with the most entered full days in foreign countries.

Tax year 2025. This working tool is available to use, but this page is not included in search results until its standalone guide passes the content and review gate.

Read the FEIE and foreign tax credits guide

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Add only full midnight-to-midnight days spent in foreign countries. The tool checks every 12-month window that overlaps 2025.

Full days in foreign countries

Add each continuous range. Overlapping ranges are counted once.

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