Stay under the 183-day rule

Track days spent in each US state for tax residency. Day-by-day tracking, CPA-ready reports, and peace of mind.

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Why Domicile183

Automatically records which state you were in each day so you never have to guess or reconstruct later.

Export audit-style PDFs with a clear date log and summary for the 183-day rule and part-year residency.

Your data follows you. Sign in on any device and pick up where you left off.

Screenshot 1
Overview

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Calendar

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Export

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Download Domicile183 and track your residency days with confidence.