Entering Hungary on a US passport: the Schengen 90/180 rule and ETIAS

Americans can enter Hungary without a visa for short stays, and the general Schengen limit of 90 days in any 180 applies. Hungary also has two features most Schengen countries do not: a bilateral agreement that can give US citizens an extra 90 days in Hungary only, and a rule that lets visa-exempt visitors apply for a residence permit from inside the country. This guide sets out those rules as Hungary's National Directorate-General for Aliens Policing (OIF) and the European Union publish them, along with passport validity, the Entry/Exit System and the status of ETIAS.

The standard Schengen short stay

OIF's information sheet for visa-exempt visitors states that a third-country national listed as visa-exempt in Annex II of Regulation (EU) 2018/1806 may lawfully enter Hungary and the Schengen states and stay for no more than 90 days in any 180-day period. US citizens are on that list.

Hungary is one of the 29 countries that make up the Schengen Area, according to the EU's Your Europe portal. Days you spend in Austria, Slovakia, Croatia or any other Schengen country count toward the same 90-day total as days in Budapest.

The 180 days are a rolling window. On any given day, count back 180 days and add up every day you were inside the Schengen Area, including arrival and departure days. If the total would go above 90, you are over the limit. The European Commission publishes a short-stay calculator for exactly this check.

Passport validity

The EU's Your Europe portal states that a non-EU national's passport should be valid for at least 3 months after the date you intend to leave the EU, and it must have been issued within the last 10 years on the day you enter. Border guards can also ask for proof of lodging, a return or onward ticket, or an invitation letter. Children need their own passports.

Register your accommodation after 30 days

OIF states that if your stay in Hungary is longer than 30 days but under 90 days, you must report your accommodation to the immigration authority after entry through the Enter Hungary online portal. OIF then issues an electronic certificate of accommodation. If you are renting a flat or staying with friends for more than a month, put this on your list.

Hungary's extra 90 days for US citizens

This is the rule that sets Hungary apart. OIF lists the United States among the countries whose citizens can stay a further 90 days in Hungary under a bilateral agreement after their 90-day Schengen visa-free stay runs out. OIF sets strict conditions:

• When you enter Hungary, you must not already have used up your 90 visa-free days in another Schengen state in the six-month period counted from your first entry to the Schengen Area.
• During the bilateral stay you must not enter any other Schengen state.
• You must leave the Schengen Area from Hungary, on the last day of the bilateral 90 days at the latest.

OIF adds that you do not need to leave the Schengen Area before starting the bilateral period. If you have already used 90 days and left, you may come back for another 90 days under the agreement, but only if you enter the Schengen Area through Hungary, stay only in Hungary, and leave only from Hungary.

The agreement is valid only between Hungary and the United States. OIF warns that it does not apply in other EU or Schengen states, and that appearing in another member state, even in air transit, carries the risk of being detained there for overstaying. A connection through Vienna, Frankfurt or Amsterdam on the way home can therefore cause a problem. Fly out on a route that leaves the Schengen Area directly from Budapest.

OIF also states that:

• The bilateral period serves mainly to develop cultural ties and cannot be used for activities that require a residence permit, such as studying, working or earning income.
• Bilateral benefits cannot be stacked. You cannot use one country's agreement after another to stay longer without a permit.
• If a residence permit issued by any member state was withdrawn, you lose the right to the bilateral stay and must leave the EU and Schengen Area.
• You should carry your valid passport (and any earlier passport used to enter the Schengen Area) and any expired residence permit, so you can show that your stay is lawful during a police check and when you leave.

The Entry/Exit System

The European Commission's Migration and Home Affairs department describes the Entry/Exit System (EES) as an automated IT system that registers non-EU nationals travelling for a short stay each time they cross the external borders of the 29 participating countries. It records your name, travel document data, fingerprints, a facial image, and the date and place of entry and exit, plus any refusal of entry.

The Commission says the EES began a progressive rollout on 12 October 2025 and became fully operational on 10 April 2026. As of that date, it replaces passport stamps and allows automatic detection of overstayers.

The EES makes a careful record of your days more important if you use the Hungarian bilateral stay. Carry the documents OIF recommends, and keep your own record of when you entered and left the Schengen Area.

ETIAS is not running yet

The official ETIAS site, run for the European Commission by eu-LISA, describes ETIAS as a new travel authorisation for visa-exempt travellers to enter 30 European countries. At the time of this check, the site states that ETIAS is not in operation and that no applications are being collected, and that the EU will announce the start date several months before launch. When it starts, the site lists a EUR 20 application fee and stays of up to 90 days. Until then, there is nothing to apply for, and any site charging for ETIAS now is not the official system.

Applying for residence from inside Hungary

In many Schengen countries a visitor has to go home and apply at a consulate. Hungary is different for visa-exempt nationals. OIF's visitor sheet states that during the visa-free period, a third-country national can submit a residence permit application in person or through the Enter Hungary portal. OIF's page on the White Card for digital nomads repeats the rule: if you can enter Hungary visa-free and do not hold a residence permit, you may submit your residence permit application in Hungary during your lawful stay. Applicants who are not visa-exempt have to apply at a Hungarian mission abroad.

OIF lists many residence purposes, including work, study, family reunification, research and the White Card for people employed by, or owning a profitable business in, a country outside Hungary who work from Hungary using digital technology. Each permit has its own requirements on the OIF site.

Two cautions. First, filing an application does not mean you can start work. OIF says activities that require a residence permit, such as work and earning income, are not allowed during the bilateral stay, and the same logic applies to any visitor status. Second, OIF says that if your residence permit expires, your right to stay visa-free for 90 days in 180 revives from the expiry date, but only as a tourist.

Quick checklist

• US passport issued within the last 10 years and valid at least 3 months past your planned departure.
• A day count for the past 180 days, checked with the Commission's calculator.
• Accommodation reported on Enter Hungary if you stay more than 30 days.
• If you plan to use the bilateral 90 days: enter and leave the Schengen Area through Hungary, avoid other Schengen countries, and carry your passports and any old permits.
• No ETIAS application until the EU announces a start date.
• For a longer stay, apply for a residence permit through Enter Hungary or in person while your visa-free stay is still valid.

Common questions

How long can an American stay in Hungary without a visa? Up to 90 days in any 180-day period across the Schengen Area. OIF also lists the United States among countries whose citizens can stay a further 90 days in Hungary only under a bilateral agreement, subject to strict conditions.

Can I travel to Vienna during the bilateral 90 days? No. OIF says you must not enter any other Schengen state during the bilateral period and must leave the Schengen Area from Hungary. Even an air transit through another Schengen country risks being treated as an overstay.

Can I work during the extra 90 days? No. OIF states the bilateral stay cannot be used for activities that need a residence permit, such as work, study or earning income.

Can I apply for a Hungarian residence permit without leaving the country? Yes, if you entered visa-free and are still within your lawful stay. OIF says visa-exempt nationals may file a residence permit application in Hungary, in person or through the Enter Hungary portal.

Do I need ETIAS for Hungary? Not yet. The official ETIAS site says the system is not in operation and no applications are being collected.