Thailand’s online advertisers are going away from TikTok to Meta.

From 1 November 2026, platforms must verify every advertiser who pays to reach Thai users before the advert runs. Each advertiser must pass document and face checks or have its ads blocked. TikTok will be hit hardest because much of its growth comes from small sellers and affiliates, who will struggle to complete these checks. Its Thai advertising revenue grew 63% in 2025 to 6.8 billion baht (US$208 million), but it gave no assurance of readiness at a parliamentary hearing on 22 October. Meta is better placed already having established an advertiser verification system in Taiwan since January 2025 and has already confirmed it is ready to implement in Thailand. As a result, TikTok is likely to lose advertisers and budget to Meta, whose 8.5 billion baht (about US$260 million) base is already set up to comply.