If you hold a US passport, you can spend up to 90 days in any 180-day period in the Schengen Area without a visa, for tourism or business. The 90 days are shared by all 29 Schengen countries, not given per country, and the 180-day period is not a calendar half-year. It is a window that moves with every day of your trip, which is why people who travel to Europe often are the ones who get caught out.
This guide covers how to count. For what happens at the border itself (fingerprints, photos, where you register on a connecting trip) and the status of ETIAS, see our EU Entry/Exit System and ETIAS guide.
Which countries share the 90 days
As of November 2026 the Schengen Area has 29 members. Every day you spend in any of them counts toward the same total:
- EU members in Schengen: Austria, Belgium, Bulgaria, Croatia, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden.
- Non-EU members: Iceland, Liechtenstein, Norway and Switzerland.
Bulgaria and Romania are the newest full members. They joined for air and sea travel in March 2024, and land border checks with them were lifted on January 1, 2025, so days in Sofia or Bucharest now count exactly like days in Paris.
Two EU countries are outside Schengen: Ireland, which chose to keep its own border controls, and Cyprus, which is not yet a full member. The UK is outside too. Days in those countries do not use up your Schengen allowance, but each has its own entry rules. Britain, for example, now asks Americans for an electronic travel authorization; see our UK ETA guide. Balkan countries outside the EU, such as Albania, Serbia and Montenegro, also run their own short-stay rules, so a week there is not a Schengen day either.
How the rolling 180-day window works
The European Commission explains the rule this way: on any day you are in the Schengen Area, look back over the 180 days ending that day, and the days you spent inside must add up to 90 or fewer. You have to pass that test on every single day of your stay, including the day you leave.
Three counting rules matter:
- The day you arrive and the day you leave both count as full days, even if you land at 11 p.m. or fly out at 7 a.m.
- Every Schengen country counts together. A week in Italy, a week in Spain and a week in Greece is 21 days, not three separate 7-day stays.
- Leaving and coming back does not reset anything. A weekend in London or Dublin pauses the count, but the days before it stay in your window until they are more than 180 days old.
The only clean reset is time away. The Commission's own manual for its calculator notes that being outside the area for 90 days in a row lets you start a new stay of up to 90 days.
A worked example
Say you spend March 1 to March 30, 2026 in Portugal and Spain (30 days, counting both ends), then return for May 10 to June 28 in France and Italy (50 days). On June 28 your last 180 days hold 80 Schengen days, so you were legal.
Now you want to come back on August 1. Both earlier trips are still inside the window, so you have only 10 days left: you would have to leave by August 10. Your March days do not start dropping out of the window until late August.
If you stay away for 90 days in a row after June 28, you can enter on September 27, 2026 with a full 90 days available again. A month either way changes the answer completely, which is why it pays to count before you book a return, not after.
Tools for counting
- The European Commission's short-stay calculator (on the Migration and Home Affairs website). You type each entry date and each exit date, plus the date you want to check, and it shows how many days you have used. The Commission says it is a support tool only and does not give you a right to stay.
- Your own list. Keep a simple note of every entry and exit date with the airport or border crossing. Boarding passes and hotel receipts are useful backup if a date is ever questioned.
- Count forward from your planned departure date, not from today. The test applies on the day you leave, so that is the day that has to pass.
What the Entry/Exit System changes for counting
Under the old system an officer worked out your days from passport stamps, which could be faded, missing or easy to misread. Since the EU Entry/Exit System (EES) became fully operational on April 10, 2026, every entry and exit of a non-EU short-stay visitor at a Schengen external border is recorded electronically, and the system calculates the 90-in-180 total for all countries that use it as one combined figure.
For counting, that means three things:
- The border knows your total. Officers no longer need to count stamps. A stay that ran over is flagged automatically.
- Records are kept. Under the EES regulation, normal entry and exit records are stored for three years. If there is no exit record after your allowed stay ends, the data is kept for five years.
- You can check your own balance. The EU's "Check how long you can stay" tool on the official travel-europe.europa.eu site shows how many days you have left. It does not count stays before April 10, 2026, so keep your own list for earlier trips, and use the official site rather than a third-party page.
What happens if you overstay
Penalties are set by each Schengen country, not by the EU as a whole. They can include a fine, removal and a ban on returning, and an overstay recorded in EES stays on file. Even a short overstay can make future visa-free entry harder, so do not treat a few extra days as harmless.
If something outside your control keeps you in Europe, such as a cancelled flight, illness or an accident, contact the immigration authority of the country you are in before your 90 days run out and keep written proof of the reason. A cancelled flight on its own does not extend your allowance.
When 90 days is not enough
The 90-day limit covers short stays only. If you want to live, study or work in Europe, or stay longer than 90 days, you need a national long-stay visa or residence permit from the specific country, applied for through its embassy or consulate in the US. Time on a long-stay visa or residence permit for that country is not counted under the 90/180 rule.
A few older bilateral agreements between the US and individual European countries are sometimes cited as allowing extra time. The Commission's calculator manual mentions such agreements but cannot account for them. Rely on one only with written confirmation from that country's embassy, and remember that any days beyond 90 must be spent in that country alone.
Before you book a long trip
- List every Schengen day from the last six months, including arrival and departure days.
- Run your planned dates through the Commission's calculator, checking your departure date.
- Check your passport against Schengen's issue-date and validity rules in our passport validity guide.
- If you want a break mid-trip, plan it in the UK, Ireland, Cyprus or a Balkan country outside Schengen, and check that country's own entry rules.
- Book a return or onward flight that leaves on or before your last legal day, with a buffer in case of delays. You can compare live fares on routes such as New York to Paris or Chicago to Rome.
Rules can change. Check the US State Department's Europe travel guidance and the official EU pages before every long trip.
