How long a US visa lasts depends on the visa type and your country of citizenship

A US visa is not a single expiration date—it has two separate timelines that work differently. The visa itself (the stamp or document in your passport) has an expiration date that determines when you can use it to enter the United States. Once you enter the country, that stamp becomes less important. What matters then is your authorized stay, which is the length of time the US government permits you to remain inside the country. These two dates are almost never the same.

For example, you might have a tourist visa that expires in six months, but when you arrive at the border, the officer stamps your passport and tells you that you can stay for 90 days. After 90 days, you must leave—even if your visa is still valid. Conversely, your visa might have expired, but if you entered legally before it expired, you can stay for your full authorized period.

Key Takeaways

  • A visa stamp's expiration date is when you can no longer use it to enter the US; it does not determine how long you can stay once you arrive.
  • Your authorized stay length is set by the US Customs and Border Protection officer at the port of entry and is printed on your arrival record (Form I-94).
  • Tourist and business visas (B-1/B-2) typically allow stays of up to 180 days, but officers often grant shorter periods like 30, 60, or 90 days.
  • Work visas, student visas, and family-based visas have different validity periods that depend on the specific visa category and your employment or school status.
  • Overstaying your authorized period, even by one day, can result in deportation, fines, and a ban on future US entry.

Tourist and business visas (B-1/B-2): Stamp validity vs. stay length

A B-1/B-2 visa stamp is usually valid for 10 years for citizens of most countries, though some countries receive shorter validity periods—typically five or three years. This means you can use that stamp to enter the United States at any point during those 10 years. However, the stamp's expiration does not control how long you can stay.

When you arrive at the airport or border, a Customs and Border Protection officer reviews your passport, asks questions about your trip, and decides how long to permit you to stay. They stamp your arrival record (Form I-94) with a date—often 30, 60, or 90 days from arrival, though they can grant up to 180 days. That date on the I-94 is your important date. You must leave by that date or you are overstaying, regardless of whether your visa stamp is still valid.

The officer's decision is discretionary. They may grant a shorter stay if they doubt your intent to leave, if your passport is nearly expired, or if you cannot demonstrate ties to your home country. There is no way to predict the exact length before you arrive, though most tourists from developed nations receive 90 days.

Work visas: Validity tied to employment status

Work visas like the H-1B, L-1, and O-1 operate differently from tourist visas. The visa stamp itself is typically valid for three years, but your authorized stay is tied to your employment. Your employer must sponsor you, and the US government issues an approval notice (Form I-797) that specifies how long you can work in the United States—often up to three years for an H-1B, though it can be extended.

Your I-94 arrival record will show a date that matches your authorized work period. If your employer's sponsorship ends or you change jobs without proper authorization, your legal status ends on that date, even if your visa stamp has years remaining. Similarly, if your visa stamp expires but your work authorization has not, you can continue working—you straightforward cannot leave and re-enter the US without renewing the stamp first.

Work visa holders must track both dates carefully. The visa stamp controls re-entry; the I-94 and employment authorization control your right to remain and work. Losing either one means you must leave or change your status.

Student visas (F-1 and M-1): Duration of status

An F-1 student visa stamp is typically valid for five years, but like other visas, this is not your stay length. Instead, F-1 visa holders are admitted for duration of status, which means you can remain in the United States as long as you are enrolled full-time in an approved school and maintaining your status. Your I-94 will show "D/S" (duration of status) rather than a specific end date.

As long as you stay enrolled and follow the rules—maintaining full-time enrollment, not working off-campus without authorization, and reporting address changes—you can remain in the country. If you drop below full-time enrollment, take unauthorized employment, or graduate without extending your status, your legal stay ends. You then have a grace period (usually 60 days) to leave or change your status, but you cannot straightforward stay because your visa stamp is still valid.

M-1 visas for vocational students work similarly, though the rules are stricter and the grace period is shorter (30 days). Both require maintaining status actively; they are not a fixed number of years.

Family-based visas: Permanent resident cards and conditional status

Family-based immigrant visas (IR-2, CR-2, F-2A, and others) lead to permanent resident status, not a temporary stay. Once you enter the US on an immigrant visa, you receive a green card (permanent resident card) that is valid for 10 years. This card is your proof of status and your re-entry document. You can remain in the United States indefinitely as long as you maintain your green card and do not abandon your residency.

Some green cards are issued conditionally—typically when you married a US citizen fewer than two years before the visa was granted, or when you adopted a child. Conditional green cards are valid for two years. Before they expire, you must file to remove the conditions, or your status ends. This requires filing Form I-751 with evidence that the marriage is genuine or the adoption is finalized.

Unlike temporary visas, a green card does not expire in the sense that you must leave. However, if you leave the US for more than six months without a re-entry permit, you may be considered to have abandoned your residency, and your card can be revoked.

What happens if your visa stamp expires while you are in the US

If you are lawfully in the United States and your visa stamp expires, nothing happens when ready. You can continue living, working, and studying according to your I-94 or status document. The expiration of the stamp only matters if you leave the country and want to return. If your stamp has expired, you cannot use it to re-enter; you must obtain a new one at a US embassy or consulate abroad.

However, if you are out of status—meaning your I-94 date has passed or you have violated the terms of your visa—an expired stamp does not protect you. You cannot straightforward stay because the stamp is still valid. Your authorized period is what controls your legal presence, not the stamp.

Overstaying and the consequences

Overstaying means remaining in the United States past your authorized departure date. This is a serious violation. Even overstaying by one day can trigger deportation proceedings, fines, and a ban on future US entry. The length of the overstay determines the ban: overstaying more than 180 days triggers a three-year ban; overstaying more than one year triggers a 10-year ban.

If you realize you have overstayed or are about to overstay, you should contact an immigration attorney when ready. Some visa holders can file to change their status or request a waiver, but this must be done before you leave the country. Leaving after an overstay does not erase the violation; it is recorded in the system and will prevent you from returning.

How to find your authorized stay date

Your authorized stay date is printed on your Form I-94 (Arrival/Departure Record). You can view your I-94 online at cbp.gov/i94 using your passport number and date of birth. The I-94 shows the date you must leave by. If you cannot find it online, you can request a copy from US Customs and Border Protection.

If you entered the US before the I-94 system was fully digital, you may have a paper I-94 card stapled in your passport. Check the date stamped on that card. If you have lost it or cannot locate it, contact CBP or an immigration attorney to obtain a copy of your record.

Frequently Asked Questions

Can I extend my stay if my visa stamp is still valid?

Not automatically. You must file a request to extend your authorized stay (Form I-539 for most visa types) before your current I-94 date expires. Approval is not may provide and depends on your visa category and circumstances. Some visas, like tourist visas, are difficult to extend. Work and student visas are easier to extend if your employer or school sponsors the request.

What if I leave the US and my visa stamp has expired?

You cannot re-enter using an expired stamp. You must obtain a new visa at a US embassy or consulate in your home country before returning. The process takes several weeks to several months depending on the visa type and your location.

Does my green card expire if I stay outside the US for a long time?

Your green card itself expires every 10 years and must be renewed, but that is a separate process. However, if you remain outside the US for more than two years without a re-entry permit, you risk being considered to have abandoned your residency. Stays of six months to two years are riskier and may require documentation of your intent to return.

Can I work in the US on a tourist visa while I wait for my work visa?

No. A B-1/B-2 tourist visa does not authorize employment. Working on a tourist visa is a violation that can result in deportation and a ban on future entry. You must wait until your work visa is approved and you have entered the US on that visa before you can legally work.

What is the difference between my visa expiration date and my I-94 date?

Your visa expiration date is when you can no longer use that stamp to enter the US. Your I-94 date is when you must leave the US. The visa controls entry; the I-94 controls your legal presence inside the country. Both matter, but they serve different purposes.