Schengen 90 in 180: the rule, in plain words

How it works

It applies to US citizens visiting without a visa, for tourism, family visits or short business trips. Your passport needs at least 3 months of validity left after the day you plan to leave, and it must have been issued within the last 10 years.

All 29 countries share one count. Driving from Germany into Austria does not start a new clock. Ireland is not in Schengen, and Cyprus is not a full member yet, so days there do not count toward it.

Your entry day and your exit day both count as full days.

There is no reset. A day only stops counting once it is more than 180 days in the past, so the clock frees up slowly, one day at a time.

Since 10 April 2026 the Entry/Exit System (EES) records your fingerprints, face photo and every entry and exit date instead of stamping your passport, so overstays are flagged automatically.

ETIAS isn't running yet. It's the EU's planned online travel authorisation for visa-free visitors. The EU hasn't set a start date and says it will announce it several months before launch. The fee will be €20. Don't pay any site that says it can get you one today. When it opens, apply only through the EU's official ETIAS website.

An example

You enter France on 1 June 2026 and leave from Italy on 29 August 2026. That is 30 days in June, 31 in July and 29 in August, so exactly 90 days, and you have to be out on the 29th. Your first day back that works is 28 November 2026, 91 days after you left. On that day your 180-day window runs from 2 June to 28 November, which holds 89 old days plus the new one, and from there one old day drops off for each new day, so you can stay another 90 days in a row.

Count your own days

Mistakes people make

Counting "90 days in, 90 days out" from a calendar instead of rolling back 180 days from each day. Short trips spread over months add up in ways that surprise people.
Hopping between Schengen countries thinking each one gets its own 90 days. They share one count.
Leaving for a week (to the UK, Albania or Morocco, say) and expecting the clock to reset. Time outside just stops new days being added. Also check the list: Croatia joined Schengen in 2023, so it counts.
Planning around a bilateral agreement. Some countries have older deals with the US that can add time. France's lets you add up to 90 days in mainland France, but only after your Schengen 90. You must ask the officer to apply it to your EES record when you enter France, and you can't go on to another Schengen country afterwards. These are exceptions with strict conditions, so read the country's own page before you plan around one.
Denmark
US citizens can stay in Denmark for up to 3 months from your first entry into Denmark, however long you've been elsewhere in Schengen. Time you spent in Denmark in the 6 months before that entry is subtracted.
Hungary
US citizens can stay up to 90 more days in Hungary only. You must enter Hungary before your Schengen 90 days run out, stay in Hungary, and leave Schengen straight from Hungary. No work or study, and you can't combine it with another country's deal.
Latvia
US citizens can stay up to another 90 days in Latvia, depending on the agreement. After that you must leave, and you can't come back to Schengen for 90 days.
Poland
Don't count on Poland's old agreement. We couldn't find an official Polish page confirming it still applies, and reports say it stopped when EES started. Plan on the standard Schengen 90 days in Poland.
Assuming no stamp means no record. EES logs every crossing at the outer border.

Quick answers

Does leaving Schengen reset my 90 days?

No. Time outside Schengen only stops new days from being added. A day drops off your count once it's more than 180 days in the past.

Do I get 90 days in each Schengen country?

No. All 29 Schengen countries share one count, so driving from Germany into Austria doesn't start a new clock.

If I use all 90 days, when can I come back?

If you spent 90 days in a row, you can come back 91 days after you left. The app works out your exact date from your own trips.

Do Ireland and Cyprus count toward Schengen?

No. Ireland isn't in Schengen and Cyprus isn't a full member yet, so days there don't count toward your 90.

Do I need ETIAS to visit Europe?

Not yet. ETIAS isn't running and the EU hasn't set a start date. It says it will give several months' notice before launch.

Where this comes from

Government sources only. Read the rule yourself.

What changed

11 Oct 2026. Removed the claim about a July 2026 ETIAS decision, which no official EU page states. Added the official ETIAS links and official sources for the Denmark, Hungary and Latvia agreements. Poland is no longer stated as fact.

3 Oct 2026. Checked against the official sources. ETIAS still has no start date. Added the 10-year passport rule and the Denmark, Hungary, Latvia and Poland agreements.

A plain-language summary of the official rules. It isn't legal advice. If your situation is unusual, confirm with the relevant authority or a qualified adviser.

Schengen 90 in 180