The 330-day rule for Americans working abroad
Spend 330 full days abroad in a 12-month window and the US lets you exclude up to $130,000 of earned income — but the day count is exact, and one short day can undo it.
Who has to prove where you were?
When a tax authority or border officer doubts your day count, you are usually the one who has to prove it — here is what that takes.
Dual tax residency and the treaty tie-breaker
Two countries can each call you a tax resident for the same year. A treaty's tie-breaker tests, applied in order, decide which one wins.
What counts as a 'day' for visas and tax
The day you arrive and the day you leave aren't counted the same way everywhere — Schengen, the US and the UK each define a 'day' differently.
How Canada counts your days for PR and citizenship
Canadian permanent residence and citizenship are both measured in days inside the country — 730 to keep PR, 1,095 to become a citizen.
The US Substantial Presence Test, explained
America doesn't use a simple 183-day count — it weights three years of days into one formula. Here is how the test actually decides your US tax residency.
What happens if you overstay in the Schengen Area
Refused entry, a return decision, and an entry ban recorded across the Schengen Area — what EU law actually does when a short stay runs past 90 days.
The UK Statutory Residence Test, explained
Britain replaced the old 183-day guesswork with a precise, multi-part day count — here is how the SRT actually decides your tax residence.
Working Remotely From Another Country: Visa & Tax Rules
Your laptop crosses borders more easily than the rules do — a tourist stamp, a tax year, and your employer each quietly count the days.
Why citizenship forms ask for every trip abroad
From the US to Australia, permanent residence and citizenship are earned in days — and the forms want every date you crossed a border.
EU Entry/Exit System (EES): What Travellers Need to Know
Since April 2026, biometric entry/exit checks have replaced passport stamps at Europe's external borders — and they quietly keep score of your 90/180 days.
Can you be a tax resident of nowhere?
The internet's favourite tax hack is mostly a myth: residency is assigned by law, not chosen — and leaving one country rarely ends it on its own.
ETIAS explained: the EU's €20 travel authorisation
From late 2026, visa-exempt visitors will need a €20 online authorisation before they travel to Europe. What it is, what it costs, and why it doesn't touch your 90/180 days.
The Schengen 90/180 rule, explained without the headache
It's a rolling window, not a fixed block — and both your arrival and departure days count. Here's how the math actually works.
The "183-day rule" is not one rule
183 days is a useful rule of thumb and a dangerous thing to rely on. What tax residency actually turns on — and why the day count is only the beginning.
How to count your days abroad without losing the plot
Partial days, rolling windows, unreliable stamps: the practical traps of day-counting, and a simple system that survives a messy travel year.
Why Countly counts on your phone — and nowhere else
A day-counter has to know where you have been. Here's how Countly does that without an account, a server, or a single ad.