Trademark Renewal in Thailand: Process and Deadlines

A registered trademark is protected for 10 years from the filing date, and can be renewed for 10-year terms indefinitely - but every renewal has to be filed within the legal deadline, or the mark gets removed from the register.

When your renewal is due

A trademark expires every 10 years from the original filing date (or the most recent renewal date). Tracking that expiration date is the owner's responsibility - the Department of Intellectual Property has no mandatory automatic reminder system.

The renewal window and grace period

Under Thailand's Trademark Act B.E. 2534, Section 54, the owner must file the renewal application with the registrar within 90 days before the expiration date. Once filed within that window, the mark is treated as still registered until the registrar issues a different order.

If you miss the 90-day pre-expiration window, the law allows a grace period of up to 6 months from the expiration date, provided you pay the standard renewal fee plus an additional surcharge of 20% of the renewal fee.

Renewal fees

Government renewal fees are charged per goods/services item, similar in structure to the original filing fee but at a separate rate:

• 1-5 goods/services items, per item: THB 2,000
• 6+ items, flat rate per class: THB 18,000
• If filed during the grace period (after expiration, within 6 months): add a 20% surcharge on top of the renewal fee

The figures above are government fees, verified against the Department of Intellectual Property's fee schedule, kept clearly separate from Patent To You's own professional service fee. If you'd like our team to handle the entire renewal process, see the Trademark Registration page.

What happens if you miss the deadline

If you file neither within the 90-day pre-expiration window nor within the 6-month post-expiration grace period, the trademark is removed from the register - protection ends, and someone else may be able to register an identical or similar mark.

Can a lapsed mark be restored?

Once the 6-month grace period has passed, there's no legal mechanism to "restore" the original registration. The only remaining option is to file an entirely new application, which gets a new filing date as its priority date - not the original one - and carries the real risk that someone else files an identical or similar mark first while your mark has no owner of record. This is exactly why it's worth setting your own advance reminder, or having an agent track the expiration date for you, rather than waiting on a notice from the Department of Intellectual Property.

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