The 90-day rule in the Schengen area looks simple at first glance but is tricky in detail. If you hold the nationality of a non-EU country and plan several trips within half a year, you must check every single day, not only the day you first entered. This guide explains how the period is calculated and uses an example to show where mistakes happen.
Short answer: Third-country nationals may stay in the Schengen area for up to 90 days in any 180-day period. Since 2013, the calculation looks backwards: for each day, the preceding period of 180 calendar days is considered, and both the entry day and the exit day count. The Federal Foreign Office describes this method. Last updated: November 2026.
Key points at a glance
- The rule applies to nationals of non-EU countries. Holders of a German passport are not subject to it.
- What matters is not the calendar month but the rolling window of 180 calendar days before each day of your stay.
- Since 2013 the backward calculation applies. For each day of the stay, the preceding period is checked.
- Both the entry day and the exit day count, which quickly causes problems when trips are close together.
- The EUR-Lex summary names the Schengen Borders Code, Regulation (EU) 2016/399, as the legal basis.
What does the rule actually say?
The rule requires that a third-country national intending to stay in the territory of a Schengen state stays for up to 90 days in any 180-day period. In addition, the travel document, a visa where required, the purpose of the stay and sufficient means of subsistence must be shown. Furthermore, the person must not be listed for refusal of entry in the Schengen Information System (SIS).
The EU summary on the rule names Regulation (EU) 2016/399 but does not explain the calculation step by step. The concrete method is therefore described by the Federal Foreign Office. For counting the entry and exit day, it refers to Article 6(1) first sentence and Article 6(2) first sentence of the Schengen Borders Code. Anyone who does not know the backward calculation tends to overestimate the remaining margin.
How the backward calculation works
For each day of the stay, you look at the period of 180 calendar days that ends on that day. Within it there may be at most 90 days of stay. The Federal Foreign Office gives an example: for 18 October 2019, the period from 22 April to 18 October 2019 is examined. If there are at most 90 days in it, the stay on that day is permitted. On the following day, the window shifts by one day and the check is repeated.
This means that old days of stay drop out of the window at some point, while new ones are added. A simple rule such as “three months per half year” is therefore not reliable. What counts is the day on which you are currently present.
A worked example
Assumption: you enter the Schengen area on 1 October 2026 and stay without interruption until 31 December 2026. The first day is 1 October, so the 90th day would be 29 December 2026. A stay until 31 December therefore covers 92 days and exceeds the limit by two days.
| Date | Days of stay in the window (assumption) | Result |
|---|---|---|
| 29 December 2026 | 90 | permitted, last day |
| 30 December 2026 | 91 | not permitted |
| 31 December 2026 | 92 | not permitted |
The table shows a single continuous trip. With several trips, you must add up the days within the window for each day. If you count in your head, it is easy to overlook an earlier stay that still lies inside the window.
Which tools are available?
The European Commission provides a stay calculator. The Federal Foreign Office also offers a short German guide to it. Both help with the overview but do not replace binding information. Binding information is provided by the Bundespolizei, the German federal police, which is responsible for border matters.
A calendar with all entry and exit dates is the simplest way to keep track. Record each trip immediately rather than afterwards, and before every new booking recalculate the window for the planned entry day.
What counts as a day of stay?
Every calendar day on which you are present in the Schengen area counts. Because the entry and exit days count too, a partial day counts as a full day. Whether you work, stay in a hotel or with friends makes no difference. What matters is your presence in the territory, not the purpose of the trip.
Typical mistakes in the calculation
- Calendar months are used instead of a rolling window of 180 days.
- The entry day or the exit day is forgotten, although both count.
- Earlier trips that still lie within the window of the planned entry day are overlooked.
- A figure from a forum is trusted instead of the Commission calculator or the information of the authority.
What happens at border control?
At entry, the control may check whether you meet the conditions. These include a valid travel document, a visa where required, evidence of the purpose and circumstances of the stay, and sufficient means of subsistence. Keep booking confirmations and proof of your funds at hand so that you can answer questions directly.
Why a break does not automatically help
Many people assume that a break of a few weeks between two trips is enough. Whether it is depends on how many days already lie in the 180-day window of the planned entry day. If two trips follow closely, the first may still lie in the window, even though you were outside the Schengen area in between.
Conversely, old days only drop out of the window once the 180 days have passed. A break therefore does not shorten the count; it only helps once enough time has passed since your last stay. Always calculate the specific dates rather than planning with a rough rule of thumb.
When is it worth recalculating?
Recalculate as soon as a date changes, for example because of a postponed flight, an extended trip or a short-notice appointment. Even a one-day shift changes the window for all following days. If you notice such changes only after departure, you no longer have any margin.
- Update the booking and the date in your calendar immediately
- Check the list of stays of the last 180 days before every booking
- If in doubt, obtain binding information early rather than late
Frequently asked questions
Does the rule also apply to overnight exits?
Yes. The exit day counts, as does the entry day. A person who enters in the evening and leaves the next morning therefore counts two days. This applies to every trip, including short excursions.
Do stays in countries outside the Schengen area count?
No. The rule only concerns the Schengen area. Stays in states that are not part of the Schengen area do not count for this calculation. You can look up which states belong to it at the Federal Foreign Office or the European Commission.
Are there exceptions for certain nationalities?
Yes. The Federal Foreign Office names nationals of Antigua and Barbuda, the Bahamas, Barbados, St Kitts and Nevis, Mauritius and the Seychelles as people for whom the backward calculation does not apply because of the wording of the visa waiver agreements. For them, the earlier method remains decisive, in which 90 days are counted within six months from entry. Check whether this exception applies to your nationality.
What happens if I exceed the limit?
Then the stay is not permitted, which can have consequences for future entries. The exact consequences depend on the individual case and national law. Binding information is given by the competent authority.
What to do now
- Check whether the rule applies to your nationality and whether an exception exists.
- Note all entry and exit dates of the last 180 days.
- Recalculate the window for the planned entry day with the Commission stay calculator.
- If in doubt, obtain binding information from the Bundespolizei before you book.
Related guides
- Work and Travel: An overview of countries, visas and budget
- Visa-free travel: which countries are open to Germans without a visa
- ETIAS: Do Germans need a travel authorisation for Europe? (in German)
- Health insurance for a long stay abroad as a student (in German)
Sources: Federal Foreign Office, calculation of the length of stay (FAQ, page without a date, retrieved 2 November 2026) (in German) and EUR-Lex, summary of the rules on crossing the external borders of the EU (summary without a date) (in German).
Last updated: November 2026. This guide is general information, not individual advice.
