Tax residency guides for the
183-day rule, SPT, Schengen & more
Plain-English explanations of the rules that decide where you owe tax. Written for individuals, not corporate tax departments.
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- US States9 min read
Illinois residency rules: domicile, the abode test, and Chicago tax exposure
Illinois taxes residents at a flat 4.95%, and the move to Florida is popular among Chicago-area professionals. How Illinois residency rules really work.
Read the guide → - Guides12 min read
The expat day counter guide: residency, treaties, and the rules you'll actually face
For Americans abroad, Brits in the EU, and anyone with a foreign tax home, day counts decide where you owe tax. Here's the playbook for tracking thresholds.
Read the guide → - Guides7 min read
Tax Days vs. TaxBird: which residency tracker is right for you?
TaxBird and Tax Days both target snowbirds and cross-border residents. Here's an honest comparison on price, jurisdictions, GPS, privacy, and audit support.
Read the guide → - Guides8 min read
Tax Days vs. Monaeo: an honest comparison
Monaeo is a long-running residency tracker for high-net-worth individuals at $1,200+ a year. Tax Days is the privacy-first iPhone app at $29.99 a year.
Read the guide → - US States10 min read
West Virginia's 183-Day Rule & the 30-Day Exit: Residency Both Ways
West Virginia's 183-day rule catches non-domiciliaries with a home in-state, while leavers can only break residency through a 30-day domicile safe harbor.
Read the guide → - Guides12 min read
How Snowbirds Should Track Tax Days: US States and the US-Canada Border
Snowbirds cross two very different borders for tax: the state line and the US-Canada border. How to count days for each, and the forms that protect you.
Read the guide → - US States10 min read
Oklahoma's Seven-Month Residency Rule: Months, Not 183 Days
Oklahoma generally presumes residency if you spend more than seven months of the year in-state. The statute is written in months, and it is rebuttable.
Read the guide → - US States10 min read
North Dakota's 7-Month (210-Day) Residency Rule: A High Bar for Snowbirds
North Dakota's test taxes you as a resident if you keep a permanent home there and spend more than seven months (210 days) in-state, above the usual 183.
Read the guide → - US States10 min read
New Mexico's 185-Day Rule: Why Only Full 24-Hour Days Count
New Mexico taxes you as a resident if you're physically present 185 days or more, but only full 24-hour days count. Partial travel days generally do not.
Read the guide → - US States10 min read
Nebraska's 183-Day Residency Rule: Permanent Abode & Any-Part-of-a-Day Counting
Nebraska taxes you as a resident if you keep a permanent place of abode there and spend more than 183 days in-state, and any part of a day counts fully.
Read the guide → - US States10 min read
Kentucky's 183-Day Rule & Reciprocity: A Cross-Border Commuter's Guide
Kentucky generally treats you as a resident past 183 days with a home in-state, but reciprocity with seven neighbors keeps cross-border wages taxed at home.
Read the guide → - US States10 min read
Iowa's 183-Day Rule: A Rebuttable Presumption You Can Fight
Iowa presumes you maintain a permanent place of abode there if you keep an Iowa home and pass 183 days in-state. It's rebuttable, but the burden shifts to you.
Read the guide → - US States10 min read
Indiana's 183-Day Residency Rule, Domicile & Reciprocity Explained
Indiana taxes you as a resident if you keep a permanent home and spend over 183 days in-state, or if you're domiciled there. Plus how reciprocity works.
Read the guide → - US States10 min read
Hawaii's 200-Day Rule: The Rebuttable Presumption of Residency
Hawaii presumes you are a resident if you spend more than 200 days there in a tax year. It is a rebuttable presumption: how it works and how to overcome it.
Read the guide → - US States10 min read
Washington DC's 183-Day Residency Rule: The Abode-Maintained Trap
DC taxes you as a statutory resident if you maintain a place of abode in the District for 183 days or more, a count that can include temporary absences.
Read the guide → - US States10 min read
Arkansas' Six-Month Residency Rule: Home Plus More Than Six Months
Arkansas treats you as a resident only if you keep a permanent home in-state and spend more than six months there. Both conditions must be met, not just one.
Read the guide → - US States10 min read
Alabama's Seven-Month Residency Rule: A Higher Bar Than 183 Days
Alabama presumes you're a resident if you spend more than seven months of the year in-state, whether or not consecutive, a higher bar than the usual 183 days.
Read the guide → - International10 min read
Germany's 183-day rule and 'center of vital interests' test
Germany determines tax residency by domicile (Wohnsitz), habitual abode (gewöhnlicher Aufenthalt), or the 183-day treaty test. How each works for expats.
Read the guide → - Guides10 min read
Year-End Residency Review: A December Audit-Prep Checklist
A year end residency review locks in your day count and ties before the tax year closes. Use this December checklist to verify days, fix gaps, and prep early.
Read the guide → - Guides11 min read
Tax Residency for Yacht Crew & Pilots: Seafarers' Earnings & Day Counting
Yacht crew tax residency depends on the days you spend on land, not at sea or in the air. Here's how seafarer reliefs and day counting actually work for crew.
Read the guide → - Guides10 min read
Which Tax Residency Rules Apply to You? State + Visa + Test Matrix
This routing guide explains tax residency rules by situation, matching your country, US state, and visa to the exact test and guide that applies to your case.
Read the guide → - International10 min read
Vietnam Tax Residency for Expats: 183-Day Rule & Long-Stay Visas
Vietnam tax residency hinges on 183 days or a permanent home and taxes worldwide income. Here's how the day count, long-stay visas, and the no-DNV reality work.
Read the guide → - International10 min read
Turkey Expat Tax Residency: 183-Day Rule & Returning-Resident Deferral
Turkey tax residency turns on a six-month presence test and taxes residents on worldwide income. Here is how the 183-day rule and the deferral exception work.
Read the guide → - International10 min read
South Africa Tax Residency: 183-Day Test & Ordinary Residence
The South Africa 183 day rule is the physical-presence test. See how it and ordinary residence decide SARS tax residency on worldwide income, and how to exit.
Read the guide →