Thailand's ongoing crackdown on illegal nominee structures has reached a new phase this week, with the Interior Ministry announcing an expanded investigation into 200 additional companies in Phuket.
This development is the latest in a series of escalating probes across the country. Over the past few months, authorities have widened their net from investigating 140 "grey" accounting firms to raiding ghost offices in Koh Phangan. Now, the focus has returned sharply to Phuket's property and hospitality sectors.
According to Khaosod (in Thai), the Interior Ministry has already taken legal action against 39 businesses in Phuket. The next phase will see 200 more firms put under the microscope.
Nationwide numbers put into perspective

While the immediate focus is heavily on Phuket, the broader national picture shows a massive, albeit targeted, sweep. Recent data indicates that authorities flagged nearly 47,000 companies nationwide for potential nominee violations, though only 852 have been formally charged so far.
This suggests that while the dragnet is wide, investigators are currently prioritizing high-profile cases, blatant shell companies, and the professional networks—such as the 140 accounting firms recently scrutinized—that facilitate them.
Interestingly, the crackdown is paired with a carrot for compliant businesses. Khaosod reports that the government is simultaneously working to expedite hotel licenses for honest operators, aiming to support legitimate foreign investment while weeding out bad actors.
What this means for foreign business owners
If you are an expat using a Thai limited company to hold land, a villa, or operate a business, the days of using "silent" Thai partners who hold 51% of the shares in name only are rapidly ending.
To ensure your corporate structure survives scrutiny, you should take the following steps:
- Review your shareholder structure: Ensure your Thai partners are genuine investors who actually contributed capital to the business and possess the financial means to do so.
- Check your accounting: Authorities are specifically targeting accounting firms that set up shell companies. Ensure your books reflect real business activity, not just property holding.
- Prepare for audits: If your business is in a hotspot like Phuket, Koh Samui, or Koh Phangan, ensure your corporate documents, tax filings, and shareholder financial proofs are readily available at your registered office address.

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