Overstay Risk Checker
A long summer stay plus a late return: see exactly where the 90-day cap is breached and when the allowance resets. A pre-filled Schengen calculator scenario.
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Your trips
Entry and exit days both count as full days of presence.
The day you want to be assessed on — usually today or a planned entry date.
Results
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Rolling window usage
Days of presence counted for each day of the last 180 days.
Features
- Rolling 180-day window evaluated day by day
- Unlimited past and planned trips
- Overstay detection with exact excess days
- Next legal entry date and maximum consecutive stay
- 90-day allowance progress bar
Scenario benchmark
Using the preset dates, here is the calculated 90/180-day status for Overstay Risk Checker.
Days used
97 / 90
Days remaining
0 days
Max consecutive stay
69 days
Next legal entry
Dec 5, 2026
Full 90 days available again
Mar 29, 2027
Status
Overstay detected
Frequently asked questions
How the maths works
The short-stay rule comes from Article 6 of the Schengen Borders Code: a maximum of 90 days of presence in any 180-day period. The window is not a fixed calendar block — it rolls forward one day at a time.
- 1Pick the reference date D (today, or the day you plan to enter).
- 2Build the window: the 180 consecutive days ending on D, i.e. [D − 179, D].
- 3Count every day of physical presence inside that window. Entry day and exit day each count as one full day.
- 4Overlapping trips are counted once — a day is either spent inside the area or it is not.
- 5Days remaining = 90 − days counted. A negative result is an overstay.
- 6For the next legal entry, step forward day by day until the window contains 89 days or fewer.
This tool models the rule itself. Long-stay national visas, residence permits and bilateral exemptions can change how days are counted — always confirm with the consulate of your destination.
Everything you need to know
What the 90/180 rule actually means
Most visa-exempt travellers and holders of a short-stay Schengen visa may spend up to 90 days in the Schengen area within any 180-day period. The frequent misunderstanding is that the 180 days reset on a fixed date, or that leaving the area starts a fresh count. Neither is true.
The window is retrospective and rolling: on any given day, a border officer looks back 179 days plus the current day and adds up your days of presence. That is why an itinerary that felt legal in March can become an overstay in May without you spending a single extra day abroad.
How days are counted at the border
The day you enter counts as a whole day, even if you land at 23:50. The day you leave counts as a whole day too, even for an early-morning flight. A weekend trip from Friday to Sunday therefore consumes three days, not two.
Transit through a Schengen airport without crossing into the area does not normally count, but any passport stamp on entry does. Keep boarding passes and stamps: if the count is disputed, the burden of proof is on the traveller.
- Entry day and exit day are both full days.
- Consecutive trips separated by a day still count each individual day of presence.
- The count covers all Schengen states together, not per country.
- Time on a long-stay national visa or residence permit is normally excluded from the 90-day pot.
Consequences of an overstay
Penalties range from a warning stamp to a fine, a removal order or an entry ban recorded in the SIS database for up to several years. Even a short overstay can complicate future visa applications, residence permits and Schengen entries.
If you discover that a planned itinerary breaches the limit, adjust it before departure. Once you are inside the area, options narrow to a national extension request, which is granted only for force majeure or humanitarian reasons.
Planning trips around the rolling window
The practical strategy is to plan backwards from the day you want to enter. Enter your planned trip in this calculator, set the reference date to the intended entry day, and check that the window still has room for the whole stay.
If the allowance is exhausted, the tool reports the first date on which a new entry becomes legal and how many consecutive days would then be available. From that date on, the allowance regenerates day by day as older stays drop out of the window.
Related calculators
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