What Happens to Your Work Permit and Visa When You Resign in Thailand

When you resign in Thailand, your work permit ends on your last day of employment, and an extension of stay that was granted because of that job ends with it. Your employer must notify the Department of Employment within 15 days. The date printed in your passport is not the date that matters.

That last sentence is where most people get into trouble. This guide walks through what happens to the permit, what happens to the visa, and which widely repeated "facts" are wrong.

Does resigning cancel my work permit automatically?

Effectively, yes. Under Section 53 of the Royal Ordinance Concerning the Management of Foreign Workers' Employment B.E. 2560, a work permit terminates from the date the employment terminates. It is tied to one employer and one position — end the employment and the permission to work goes with it.

The paperwork is your employer's legal duty, not yours. Section 13 of the same ordinance requires the employer to notify the registrar within 15 days of the foreign worker ceasing to work, and the penalty for missing that deadline is a fine of up to THB 20,000.

You will still see "7 days" quoted on plenty of websites. That figure comes from the original 2017 decree and was changed to 15 days by the March 2018 amendment. Some well-ranked pages have simply never been updated.

Since October 2025 these filings run through the Department of Employment's e-Work Permit system rather than on paper, so in practice your HR team files the cancellation online.

What happens to my Non-B visa?

This is the part that costs people money, and it turns on a distinction almost nobody explains.

If you have an extension of stay granted inside Thailand by Immigration on the basis of your employment — which is what most long-term foreign employees have, renewed annually — that permission exists because you hold a work permit for that employer. Immigration Division 1 in Bangkok states plainly on its own FAQ that notification of resignation causes permission to stay to be immediately terminated.

Read that again: immediately. Not on the expiry date in your passport.

Your employer provides Immigration with a letter, signed by an authorised director, stating your resignation date. One detail worth knowing: if the letter does not specify a date, you are treated as having resigned on the date of the letter. Check the letter before it is filed.

The consequences of getting this wrong are not trivial. Overstay is fined at THB 500 per day up to a THB 20,000 cap, and longer overstays carry re-entry bans ranging from one to ten years. Working after your permit is cancelled carries a fine of THB 5,000–50,000, deportation, and a two-year bar on obtaining another work permit.

Do I get a 7-day grace period?

Not as a right. This is the single most repeated myth about resigning in Thailand.

Three different things get blended together into one imagined entitlement:

• Immigration Bureau Order 327/2557, Clause 4 does contain a seven-day departure period — but it applies to someone whose extension application was refused, not to someone whose permission was terminated mid-term because they resigned.
• Immigration officers do commonly grant a discretionary 7-day extension stamp so a departing foreigner can settle their affairs. It is a courtesy, not an entitlement, it cannot be extended further, and you cannot plan around it.
• The BOI route genuinely does have a documented seven days: an employer using the BOI e-Expert system files Form 14.1 to terminate employment, which can be submitted up to 15 days before employment ends, and BOI extends the stay by seven days.

If you are not under BOI, treat the seven days as something you might be given, not something you are owed.

Verify before you rely on any of this. Immigration practice varies between Bangkok's Chaengwattana office, the BOI One Stop Service Centre, and provincial offices — the BOI flow alone uses 15-day, 7-day and 21-day timings that do not apply elsewhere. Confirm your own situation with your employer's HR team and the immigration office that issued your extension.

Can I transfer my work permit to a new employer?

Outside BOI, no. A Thai work permit is not portable. The old permit is cancelled and the new employer applies for a new one.

The good news is that since the 2018 amendment, changing employer requires only a notification form — the old WP6 application and its government fee were abolished. The new permit typically takes about a week of processing.

Whether you can stay in Thailand through that gap depends entirely on timing, and sources genuinely disagree on how reliably it works. Some firms describe a workable in-country path: cancel and re-apply before your extension lapses, use the discretionary 7-day window, collect the new permit. Others state flatly that you must leave and obtain a fresh Non-B abroad. Both outcomes happen in practice.

The practical takeaway: start the conversation with your new employer before you resign, not after. Line up the new position approval first, then set your resignation date around it.

BOI-promoted company to BOI-promoted company is the one genuinely smoother path, handled through the BOI Single Window with the existing Non-B.

Do I need a release letter from my old employer?

Probably not as a legal requirement — but you may well be asked for one.

Neither the Department of Employment's cancellation checklist nor Immigration's document list includes a release letter (ใบผ่านงาน). What the old employer must actually produce is the cancellation notification to the DOE and the director-signed letter to Immigration.

Where the letter does matter is with your new employer, who may want evidence that you left cleanly and that your previous permit was properly cancelled. Treat it as customary HR practice worth asking for, not as a legal hurdle.

Separately, and this one is a legal right: under Section 585 of the Civil and Commercial Code you are entitled to a certificate stating the length and nature of your service, whether you resigned or were dismissed. Your employer cannot condition it on you having resigned "properly".

Do I need a tax clearance certificate to leave Thailand?

Usually not, despite how often this comes up.

Under Section 4 quater of the Revenue Code, a departing foreigner needs a Tax Clearance Certificate only in three situations: you are liable for tax or tax arrears before departing; you have a duty to file and pay tax on behalf of a foreign-incorporated company or partnership; or you have taxable income as a public performer in Thailand.

An ordinary employee who has had tax withheld through payroll and is simply leaving does not generally need one. If you do fall into one of those categories, the application is Form P.1, filed within 15 days before departure.

What about social security?

You keep your Section 33 rights — foreigners have the same entitlements as Thai employees. Unemployment benefit on voluntary resignation is 30% of wages for up to 90 days, provided you contributed for at least six months within the fifteen months before becoming unemployed, and you register as unemployed within 30 days of leaving. (Dismissal, by contrast, pays 60% for up to 180 days — that rate rose from 50% on 28 June 2025.)

There is an obvious practical tension here that no official source resolves: the benefit requires you to register within 30 days and report in monthly, but your permission to stay ended with your job. The entitlement exists on paper; collecting it while your visa situation is unresolved is another matter. If this is material to you, raise it with the Social Security Office directly on 1506 rather than assuming either way.

A realistic timeline

Work backwards from your last day rather than forwards from your resignation letter:

1. Before you resign — confirm the new role, and ask both employers who is filing what and when.
2. Give notice — under Section 17 of the Labour Protection Act, notice is tied to your wage-payment cycle, not a flat 30 days.
3. Your last working day — the employer files the DOE cancellation (15-day deadline) and the Immigration letter. Contact Immigration on this day, not later.
4. Immediately after — either your new employer's permit application is already moving, or you plan your departure.

Do not leave step 3 to chance. It is the step where the overstay clock starts.