Guide

The Schengen 90/180 Rule for US Passport Holders: How the Rolling Window Is Counted

US passport holders can spend 90 days in any 180 day period in the Schengen area, and the 180 day window is checked again for every day of a stay. This guide works through the count with dates and shows the mistakes that most often lead to an overstay.

The old town of Dubrovnik, Croatia, from the city walls. — Photo by DXR, CC BY-SA 4.0, via Wikimedia Commons

Published: 2026-10-16 · Last verified: 2026-10-16 · Numbers apply to US passport holders

Rules change. Confirm the current rules with the official sources linked below before you apply, pay a fee, or book travel around a date in this guide.

The rule in one paragraph

US citizens do not need a visa for short stays in the Schengen area. The limit is 90 days in any 180 day period, and it covers the whole area, not each country separately. The legal text is Article 6 of the Schengen Borders Code, Regulation (EU) 2016/399. It sets three rules. First, the 90 days are checked against the 180 days before each day of your stay. Second, your day of entry counts as the first day of stay and your day of exit counts as the last. Third, days spent under a residence permit or a long stay visa are left out of the count.

Every country in this guide counts toward the same 90 days: France, Germany, Greece, Portugal, Spain, Croatia, Estonia, Italy and Malta. Croatia has applied the Schengen rules in full since January 1, 2023.

How to count the window, step by step

Step 1: Pick the day you want to check. It can be today, a planned exit date, or a planned date to come back.
Step 2: Take that day plus the 179 days before it. Those 180 days are the window for that one day.
Step 3: Count every day in that window that you spent in any Schengen country. The entry day and the exit day each count as a full day.
Step 4: If the total is 90 or less, that day is legal. If the total is 91, that day is an overstay.
Step 5: Do the same check for every day of the trip. The European Commission describes the method as counting back 180 days from each day of the stay. The trip is legal only if every single day passes.

Days do not come back all at once. Each day, the oldest day falls out of the window and the new day is added. The Schengen calculator runs this check for every day of a trip so you do not have to do it by hand.

Worked example: one long stay, then a second one

You arrive on March 1, 2027. March has 31 days, April has 30, and 29 days in May bring the total to 90. So March 1 through May 29 is exactly 90 days, and May 29 is the last legal day. The Swiss migration office, which applies the same Schengen rule, uses these dates in its own official example.

March 1 stays in the window until August 27, which is 179 days after it, and drops out on August 28. If you stay out from May 30 through August 27, that is 90 days away. On August 28 the window runs from March 2 to August 28. It holds 89 days from the first trip plus 1 new day, for a total of 90. From then on, one old day drops out each time you add a new day. That means a second continuous stay from August 28 through November 25 never goes over 90 and is legal. November 26 would be day 91. In short: 90 days in, 90 days out, then 90 days in again.

Common mistakes that lead to overstays

Thinking a trip outside Schengen resets the count. It does not. Take the traveler above, who leaves on May 29, spends two weeks outside the area, and comes back on June 15. All 90 days from March 1 to May 29 are still inside the window on June 15, so June 15 is day 91. The Swiss example calls this entering too early.
Counting nights instead of days. A hotel stay of 10 nights uses 11 days. A Friday to Monday weekend uses 4 days.
Expecting a reset on January 1 or after six months. Say you stay from November 1 to December 31. That is 30 plus 31, or 61 days. If you stay on into January, January 29 is day 90 and January 30 is day 91. The window for January 30 starts on August 4, so all of November and December are still in it.
Counting each country on its own. 45 days in Spain plus 45 days in Italy adds up to 90 days, and the allowance is used up.
Getting long stay time wrong. Only the days covered by a residence permit or long stay visa are left out. Visa free days before or after the permit are counted normally.
Planning on an extension. In Spain, a visitor who entered visa free can ask for at most 3 more months, and only for exceptional reasons under Article 20 of the Schengen Convention. The visitor must also show enough money and travel insurance for the extra time, and if no answer comes in time, the request counts as refused. France allows extensions only in rare exceptional cases.

Enforcement since April 2026

The EU Entry/Exit System (EES) has been fully running in all Schengen countries since April 10, 2026, after a phased start on October 12, 2025. It records every entry and exit electronically instead of stamping passports, and the European Commission says it can detect overstays automatically. If the system lists you as an overstayer, the consequences depend on national law. The official EES site gives examples: removal from the country, administrative fines or detention, and being barred from coming back. You can have your record corrected if you give the authorities credible evidence that something unforeseeable kept you there, such as a hospital stay after a serious injury.

ETIAS is not running yet. The official EU ETIAS page shows a fee of EUR 20 for when it starts and says no action is needed from travelers for now. In January 2026 the European Commission said the start was planned for the last quarter of 2026, with the exact date to be announced officially.

When you need more than 90 days

The only legal way to stay longer is a long stay visa or a residence permit. Each country handles this differently. For stays over 90 days, Portugal and France require a long stay visa obtained before you travel. Germany lets US citizens enter visa free and apply for a residence permit at the local foreigners authority after they arrive, but they may not work or study until the permit is granted. In Spain, someone who is legally in the country, for example on a visa free tourist stay, can apply for the residence permit for international remote workers without getting a visa first. In Greece, US passport holders can enter visa free and apply for the digital nomad permit inside the country. In Croatia, US citizens can file for digital nomad status at a police station and may stay until the decision takes effect. Estonia's digital nomad visa and Malta's Nomad Residence Permit both still limit holders to 90 days in any 180 in the other Schengen countries.

Tax: staying within the 90 day limit does not protect you from tax residence

Staying within the rule can still add up to more than 183 days in one calendar year. Here is how it works in a non leap year. In: January 1 to March 31 (90 days). Out: April 1 to June 29 (90 days). In: June 30 to September 27 (90 days). Out: September 28 to December 26 (90 days). In: December 27 to 31 (5 days). Every day passes the 180 day check, and you are present for 185 days.

Spain: more than 183 days in a calendar year, or your center of economic interests is in Spain.
Malta: 183 days or more in a calendar year generally makes you tax resident for that year.
Portugal: more than 183 days in any 12 month period that starts or ends in the tax year, or keeping a home you intend to use as your habitual residence.
Greece: more than 183 days in any 12 month period, but this does not apply if you are there only for tourism, medical or similar private reasons and the stay is no longer than 365 days.
Estonia: a place of residence in Estonia, or at least 183 days over 12 consecutive calendar months.
Italy: one of the residence tests, which include physical presence, met for most of the tax year (183 days, or 184 in a leap year).
Croatia: a domicile or habitual residence, with a test of at least 183 days across two consecutive calendar years.
Germany: keeping a dwelling can create a tax domicile with no minimum number of days.
France: no day count. Your home (foyer), your main place of stay, your main work, or your center of economic interests in France is enough.

Before you apply

Check your dates with the European Commission short stay calculator and the official sources listed below before you book. Make sure your passport meets the Schengen entry rules: it must be valid for at least 3 months after your planned departure and must have been issued within the last 10 years. Rules, fees and start dates change, so confirm them on the official government page for each country before you travel or apply.

Country pages

France: every long stay route with the current math on the France country page.

Germany: every long stay route with the current math on the Germany country page.

Greece: every long stay route with the current math on the Greece country page.

Portugal: every long stay route with the current math on the Portugal country page.

Spain: every long stay route with the current math on the Spain country page.

Croatia: every long stay route with the current math on the Croatia country page.

Estonia: every long stay route with the current math on the Estonia country page.

Italy: every long stay route with the current math on the Italy country page.

Malta: every long stay route with the current math on the Malta country page.

Official sources

Facts in this guide last verified against the sources: 2026-10-16

The Schengen 90/180 Rule for US Passport Holders: How the Rolling Window Is Counted

The rule in one paragraph

How to count the window, step by step

Worked example: one long stay, then a second one

Common mistakes that lead to overstays

Enforcement since April 2026

When you need more than 90 days

Tax: staying within the 90 day limit does not protect you from tax residence

Before you apply

Country pages

Official sources

Optional analytics