Questions, answered
The travel-day questions people actually ask — answered directly, with the full rule and official sources behind each one.
Does the 90-day rule reset after 180 days?No — there is no reset moment. The 180-day window rolls forward one day at a time, so each day you spent in Schengen stops counting exactly 180 days after it happened. Your allowance rebuilds gradually as old days age out, never all at once on a fixed date.When can I return to Schengen after 90 days?If you spent your 90 days in one unbroken stretch, you must wait 90 days after leaving: your first lawful day back is 180 days after your original entry. From that day you can stay continuously for up to 90 more, because one old day drops out of the window for every new day you add. If your days were spread across trips, the wait is shorter but the arithmetic is trickier — your allowance rebuilds as each old day passes the 180-day mark.When does the 180-day period start in Schengen?It doesn't start on any fixed date. The 180-day period is counted backwards from whichever day is being checked — usually the day you enter or leave. On every day of a stay, the window is 'the 180 days ending today', so it moves forward each day and never has a start date you can anchor to.What does “90 days in any 180-day period” mean?It means that on every day of your stay, the 180 days ending on that day may contain at most 90 days of presence in the Schengen Area. “Any” is the key word: every possible 180-day window must comply — it is a rolling check, not one fixed six-month block with a quota.What does a rolling 180-day period mean?A rolling 180-day period is a window that moves forward with the calendar. On any given day, you look back at the 180 days ending on that day and count your days of presence inside them. Nothing resets on a fixed date — each day you used simply “ages out” once it is more than 180 days in the past. The Schengen 90/180 rule is the best-known example.How long can I stay in Thailand without a visa?From 15 September 2026, 30 days per visit for the 60 visa-exempt nationalities (including the EU, UK, US, Canada, Australia, and India), extendable once by 30 days at an immigration office. Until 14 September 2026 the old 60-day exemption still applies, and anyone admitted on or before that date keeps the 60 days stamped at entry.What is the 183-day rule?The 183-day rule is the most common day-count test countries use to decide tax residency: spend 183 days or more there within the measuring period — usually a calendar year, tax year, or rolling 12 months — and you generally become a tax resident, taxable on your worldwide income. The number matters because 183 days is just over half a year.How many months is 183 days?183 days is just over six months — six months plus one day in a 365-day year, or about 26 weeks and one day. It is the smallest whole number of days that is more than half a year, which is exactly why so many countries use it as the tax-residency threshold: spend 183 days there and you were present for the majority of the year.What is tax residency?Tax residency is the country whose tax system treats you as a resident — usually the one where you spend most of your time, typically 183 days or more in a year, or where your permanent home, family, and work are. Being tax resident generally means that country taxes your worldwide income, not just what you earn there. It is separate from citizenship and from your visa.Can you be tax resident in two countries?Yes. Each country applies its own residency test, so you can pass two at once — for example 183 days in one country while your permanent home is in another. This is called dual residence. If the two countries have a tax treaty, its tie-breaker rules assign you to one of them for treaty purposes; if not, both can tax your worldwide income and you rely on foreign tax credits.What is the substantial presence test?The substantial presence test is the IRS day-count rule that makes a non-citizen a US resident for tax purposes. You meet it if you were in the United States at least 31 days in the current year and 183 weighted days over three years — all of this year's days, plus one-third of last year's, plus one-sixth of the year before. Meet it and the US taxes your worldwide income.What is the Cyprus 60-day rule?The Cyprus 60-day rule lets you become a Cyprus tax resident by spending just 60 days there in a calendar year — far below the usual 183 — provided you meet four conditions: you spend no more than 183 days in any other single country, aren't tax resident anywhere else, keep a permanent home in Cyprus, and have a Cyprus business, job, or directorship.What is a tax residency certificate and how do I get one?A tax residency certificate (TRC) is an official document from a country's tax authority confirming you were tax resident there for a given year. You need it mainly to claim tax-treaty benefits — reduced withholding tax on dividends, interest, and royalties — and to prove your status to foreign tax offices, banks, and employers. You apply to the tax authority of the country where you qualify as resident, with evidence of your days and ties.What is double taxation and how do tax treaties prevent it?Double taxation is when two countries tax the same income of the same person for the same period — typically because one taxes you as a resident on your worldwide income while the other taxes the same income because it was earned there, or because both consider you resident. A double taxation agreement (tax treaty) prevents it by deciding which country you are resident in, allocating each type of income to one country or capping what the source country may withhold, and obliging your residence country to exempt that income or credit the foreign tax.What is a deemed resident of Canada?A deemed resident is someone Canadian tax law treats as a resident even though they lack the usual residential ties — most commonly because they “sojourned” (stayed) in Canada for 183 days or more in a calendar year while remaining tax-resident elsewhere. Deemed residents owe federal tax on their worldwide income for the entire year.What is a deemed non-resident of Canada?A deemed non-resident is someone who has enough ties to be a factual or deemed resident of Canada, but whom a tax treaty's tie-breaker rules assign to another country. Canadian law then treats them as a non-resident: taxed only on Canadian-source income, with departure-tax consequences from the day the status begins.How long can NZ pensioners stay overseas?Up to 26 weeks (182 days) in any 12-month period without affecting NZ Super or the Veteran's Pension — payments continue as normal for trips up to that length. Away longer, and continued payment depends on separate portability rules you should arrange with Work and Income before leaving. The Winter Energy Payment stops much sooner: after 28 days abroad.How do I get a German tax residency certificate (Ansässigkeitsbescheinigung)?A German tax residency certificate — the Ansässigkeitsbescheinigung — is issued by your local Finanzamt, not by ELSTER or the Federal Central Tax Office. You fill in either the form your foreign payer's tax authority supplies or the German standard form 034450 ("Ansässigkeitsbescheinigung nach DBA") from the Bundesfinanzverwaltung form portal, sign it, and send two copies to the Finanzamt that handles your income tax. It checks that you had a residence or habitual abode in Germany for the period, stamps one copy and returns it. It is free and typically takes two to four weeks.