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Verified against official sources — 30 Oct 2026

The 90/180 Rule, Explained

NEW Published 30 October 2026

Illustration of a traveller walking along a large golden circular calendar ring above a European skyline

Ninety days in any 180-day period — a rolling window, not a calendar allowance, and the EU publishes the calculator.

Every Schengen short stay runs on one sentence: up to 90 days in any 180-day period. It sounds like a quota that resets; it is not — the 180 days roll forward with you, so yesterday's trip is still shaping today's allowance. This guide explains how the window works, what counts, and where the official calculator lives, using the European Commission's own definitions.

Quick answer

On any given day in the Schengen area, count back 180 days: the days you were present in that window, plus today, must total no more than 90. The window never resets — days drop out only as they pass the 180-day horizon. The European Commission publishes a short-stay calculator that does this arithmetic officially.

SECTION 01The rule, in the Commission's terms

A Schengen visa is, in the Commission's definition, an entry permit for a short, temporary visit of up to 90 days in any 180-day period. The Entry/Exit System applies the same definition: for the EES, a short stay means up to 90 days within any 180-day period, calculated as a single period for all the European countries using the system. Two consequences follow:

  • RULE — All Schengen days count together. A week in Spain and a week in Poland are 14 days of the same allowance. Splitting a stay across countries does not multiply it.
  • RULE — The window rolls. There is no 1 January reset and no fresh 90 days per trip, per visa or per year. Each day, the relevant 180 days are the 180 days ending today.
  • RULE — Entry and exit days both count. Presence on a calendar day is what matters; the EES now records those entries and exits electronically, including refusals of entry.

SECTION 02A worked example

Suppose you spent 30 days in the Schengen area in March and 30 days in June. In September you want a 45-day trip. Looking back 180 days from a September arrival, part of the March stay may have aged out of the window while the June days still count — so the answer is neither "you have 90 fresh days" nor "you have used 60, so 30 remain", but depends on exactly which days fall inside the moving window on each day of the new trip. This is precisely the arithmetic the Commission's short-stay calculator exists to do: enter your past and planned dates and it returns the remaining authorised stay. Use it — an estimate here is how overstays happen.

SECTION 03What the rule is not

  • Not a visa validity. Your visa's validity window and its authorised length of stay are set from the examination of your application and printed on the sticker; neither can extend the 90/180 ceiling.
  • Not per country. Leaving one Schengen country for another starts nothing new. Only leaving the area stops the count.
  • Not excused by a new visa. Article 32 makes having already stayed 90 days in the current 180-day period a refusal ground for the next application — the allowance is legal, not administrative.

Three habits keep the rule simple: plan with the official calculator before booking; keep your own day-count as you travel, because the EES record — not your memory — is what a border officer sees; and leave margin, because a missed departure consumes days you may have planned for the next trip. If your plans need more than 90 days, the answer is a national long-stay visa or residence permit from the specific country — those sit outside the Schengen short-stay system entirely and are not covered by this guide.

SECTION 05Common questions

Does the clock reset when my visa expires?

No. The 180-day window is independent of any visa. A new visa grants permission to travel; it does not restore days already used inside the window.

Do transit days count?

Passing through an airport's international transit area without entering is not a stay. Entering the area — even briefly — is presence, and counts.

Where is the official calculator?

On the European Commission's Schengen pages — the Commission links its short-stay calculator from its "Applying for a Schengen visa" page. Use that one; third-party calculators cannot see corrections or amendments.

Editorial note: This guide explains the arithmetic of the rule from the Commission's and the EES's published definitions. For an individual itinerary with several trips, the calculator — not any worked example, including ours — is the authority.

Related doubts

Official references and verification status

The 90/180 definition, its single-period calculation across all participating countries, and the existence of the Commission's short-stay calculator were read on the sources below on 30 October 2026. The refusal ground for an exhausted allowance is Article 32(1)(a)(iv) of the Visa Code.

Count your days with the official calculator before every trip.

General information only. This guide is based on official sources publicly available and checked on the date shown on this page. Visa rules change, and consular and USCIS officers decide every case on its own facts — nothing here is a confirmation or a guarantee for your individual case, and this is not legal advice. Always confirm the current requirement on the official page linked in this guide before you act, and consider a qualified immigration attorney for your specific situation.