Rental Deposit Not Returned in Thailand? Your Rights and the Real Refund Deadline (2026)

Why deposits vanish — and what actually changed

You handed over one or two months' rent when you moved in, kept the place clean, and now the landlord is quiet, slow, or inventing charges. It is one of the most common frustrations for tenants in Thailand, and for years the rules were murky enough that many people simply gave up.

That changed. On 4 September 2025, a new notification from the Contract Committee of the Office of the Consumer Protection Board (OCPB) — B.E. 2568 — came into full effect, replacing the older 2018 framework. It tightened the caps, shortened the refund window, and pulled more landlords under the rules.

This guide walks you through who is protected, what a landlord may and may not keep, the real refund deadline, and the exact free and low-cost routes to get your money back. A quick honesty note first: this is general information, not legal advice. For a specific dispute, the authority to contact is the OCPB, and for a court claim you may want a Thai lawyer.

Who is actually protected by the 2025 rules?

The OCPB rules do not cover every rental in Thailand. They apply to a "residential lease business" — defined as a landlord renting out three or more residential units (rooms, apartments or houses). Before September 2025 the threshold was five units, so the net is now wider.

If your landlord is a company, an agency, or a person operating three or more units, you are covered. That means the deposit cap, the advance-rent cap, the fast refund deadline and the ban on unfair forfeiture clauses all apply to you.

If your landlord rents only one or two units — a common setup for condos owned by individuals — the OCPB caps do not automatically apply. Your relationship is governed by the lease contract and Thailand's Civil and Commercial Code. Deposits there are a matter of agreement; the 2026 market norm is two to three months, and the refund timing is whatever the contract says (or a reasonable time if it is silent).

In short: the size of your landlord's operation, not the size of your rent, decides which rules protect you.

What is the real deposit refund deadline in Thailand?

For a covered landlord, the deadline is concrete and short:

There is no lawful 30-day or 60-day return period for these rentals. In fact, the rules prohibit writing a 30- or 60-day forfeiture or return clause into the lease — a clause many landlords still copy from old templates. If your contract with a covered landlord says "deposit returned within 30 days," that term does not override the law.

For landlords with one or two units, there is no statutory 7-day rule. The refund follows your contract; if it sets 30 days, that is the term you agreed to.

Bottom line: covered tenants get 7 days (or 14 with damage); small-landlord tenants get whatever the contract says.

What can a landlord legally deduct from my deposit?

A deposit is security against specific, provable costs — not a fee the landlord gets to keep by default. The distinction between damage and normal wear and tear is where most disputes are won or lost.

Deductions a landlord may legally make:
- Unpaid rent up to the end of the tenancy
- Unpaid utilities (electricity, water, internet) still outstanding
- Repair of damage the tenant caused beyond normal use
- Cleaning cost, only if the unit is left below the move-in standard

What a landlord may NOT deduct:
- Normal wear and tear — faded paint, minor scuffs, worn flooring, aging fixtures
- Pre-existing damage that was there when you moved in
- "Repainting" or "deep cleaning" as a blanket charge with no evidence
- Inflated repair quotes far above the real cost

The practical defence is evidence. On move-in and move-out, photograph and date every room, including existing marks. A dated photo set is what turns "the landlord says the wall was damaged" into "here is the wall on day one and on the last day."

How do I get my deposit back, step by step?

Escalate in order — most disputes end at step one or two.

1. Ask in writing, with a short deadline. Send a clear message (email or a messaging app you both use) stating the amount owed, that the tenancy ended on a given date with no damage, and requesting return within 7 days. Keep it calm and factual; attach your move-out photos.

1. Reference the rule. If your landlord is covered (3+ units), state plainly that under the OCPB rules in force since September 2025 the deposit is due within 7 days when there is no damage. Many landlords settle once they realise you know the framework.

1. File a free OCPB complaint. For a covered landlord, call the OCPB hotline 1166 (Thai and English), file online at ocpb.go.th, or visit an OCPB office. The process is free and typically takes about 30–60 days. The OCPB mediates and can pursue non-compliant landlords, who face fines up to THB 200,000 and/or up to one year's imprisonment.

1. Go to the Consumer Case Court. If mediation fails or your landlord is not OCPB-covered, you can file a claim yourself. For amounts under THB 500,000 you generally do not need a lawyer; the filing fee is roughly THB 50–200 and cases often resolve in 60–120 days. For larger claims, a Civil Court action (with a lawyer) is the route.

Summary: written demand → cite the rule → OCPB 1166 → Consumer Case Court. Each step costs little or nothing.

Conclusion

Since September 2025, tenants of larger landlords in Thailand have real leverage: a one-month deposit cap, a 7-day refund deadline, and a free complaint line at 1166. The people most at risk are those renting from small private landlords, where the contract does the work the law otherwise would. Whichever category you fall into, your next practical step is the same — take dated move-in and move-out photos and send a clear written request the day your lease ends, so that if it comes to the OCPB or the Consumer Case Court, the evidence is already on your side.