Thailand Withholding Tax: PND 3 vs PND 53 Explained

Picture this: you run a small import business in Koh Samui, registered as a Thai limited company with foreign shareholders. This month you pay a local freelance graphic designer for a new product catalogue, settle an invoice from your IT contractor, and wire a fee to your Thai-registered logistics company. Three payments, three different situations — and a question that trips up a surprising number of business owners: do you need to withhold tax, which form do you file, and how much do you deduct? Getting this wrong can result in penalties, surcharges, and awkward conversations with the Revenue Department. Here is a plain-language breakdown of how withholding tax works in Thailand, using that exact scenario as our guide.

What Withholding Tax Actually Is

Withholding tax in Thailand is a mechanism where the payer deducts a percentage of a payment at source and remits it to the Revenue Department on behalf of the recipient. The recipient then receives the net amount. The tax withheld is later credited against the recipient's annual tax liability, so it is not an extra cost — it is a prepayment of tax collected early. The obligation sits with the payer, not the recipient. If you are a juristic person (a company or partnership registered in Thailand) making qualifying payments, you are almost certainly required to withhold.

PND 3 vs PND 53: The Core Difference

The form you use depends entirely on who you are paying, not what you are paying for. PND 3 is used when the recipient is an individual — a natural person. PND 53 is used when the recipient is a juristic person, meaning a company, partnership, or other registered legal entity. That is the single most important distinction to understand. Both forms cover the same categories of payment types and rates, but filing the wrong one is a compliance error the Revenue Department takes seriously.

Going back to our Koh Samui business owner: the freelance graphic designer is an individual, so that payment goes on PND 3. The Thai-registered logistics company is a juristic person, so that payment goes on PND 53. Simple in principle, but easy to muddle when you are processing payroll, freelancer invoices, and supplier payments all in the same month.

Which Payments Are Subject to Withholding Tax?

Not every payment triggers a withholding obligation. The Revenue Department specifies categories of service income that must be withheld. Common ones include professional fees, service fees, commissions, advertising fees, transportation fees, rental payments, and fees paid to contractors. Pure product purchases — buying goods from a supplier — are generally not subject to withholding tax. The confusion often arises with mixed invoices that include both goods and services.

In our example, the IT contractor is billing for a managed service rather than selling hardware, so withholding tax applies. If that same contractor had simply sold the company a server, withholding would not apply to that element. When invoices combine goods and services, it is best practice to have them itemised separately so you can apply withholding correctly to the service portion only.

The Rates: How Much Do You Deduct?

Rates vary depending on the nature of the service, and some categories have different rates depending on whether a written contract exists. The most common rates businesses in Koh Samui encounter are as follows.

Service fees paid to companies or individuals who provide services as part of their regular business (such as the logistics company or the IT contractor) are typically withheld at three percent. Professional services — think lawyers, accountants, architects, or engineers — are withheld at three percent when paid to a company, and also three percent when paid to an individual. Rental payments are withheld at five percent regardless of whether the recipient is an individual or a company. Advertising fees are withheld at two percent. Commissions sit at three percent in most commercial arrangements. Payments made to non-residents of Thailand follow a separate set of rules under Section 70 of the Revenue Code and are generally withheld at fifteen percent, though this varies by income type and applicable tax treaties.

In our scenario, the freelance graphic designer would be subject to three percent withholding on the design service fee. The IT contractor company, three percent. The logistics company for transport services, one percent — transportation by land is a separate category with a one percent rate. These distinctions matter because applying the wrong rate creates a discrepancy the Revenue Department can identify on audit.

Filing, Payment Deadlines, and What Happens If You Miss Them

Both PND 3 and PND 53 must be filed and the withheld tax paid to the Revenue Department by the seventh day of the month following the month in which the payment was made. If you are filing online through the Revenue Department's e-filing system, the deadline extends to the fifteenth of the following month. You must also issue a withholding tax certificate to the recipient at the time of payment — this is the document they use to claim the credit on their own tax return.

Missing the deadline carries a surcharge of one and a half percent per month on the unpaid amount, plus a fine. Failing to issue the certificate to the recipient is a separate offence. Both are avoidable with a proper monthly accounts payable process. Many businesses in Koh Samui handle this as part of their monthly bookkeeping cycle, often handled by their accounting firm so nothing falls through the gaps at month end.

Common Mistakes and How to Avoid Them

The errors we see most frequently are: using PND 3 when the recipient is actually a registered company; failing to withhold at all because the payer assumed a written contract was not in place; applying a three percent rate to a rental payment instead of five percent; and not filing for months where the only payments were to goods suppliers, then later being unable to demonstrate why no forms were filed.

A straightforward habit helps: before processing any payment for services above a minimal threshold, check the recipient's registration status. If they have a company registration number, use PND 53. If they are an individual with a national ID or passport number, use PND 3. Record the withheld amount in your accounts immediately, issue the certificate, and include the payment in that month's filing.

A Note for Foreign-Owned Companies in Koh Samui

Foreign-owned Thai companies operate under exactly the same withholding tax rules as Thai-owned companies. There is no exemption or reduced obligation based on foreign shareholding. If you are running a BOI-promoted business, check carefully whether specific promoted activities interact with your withholding obligations — in most cases, withholding on domestic service payments still applies. If your business is making payments to overseas parent companies or related parties abroad, those cross-border payments fall under a different withholding framework and often require separate advice depending on the relevant tax treaty.

Withholding tax is one of those compliance areas where the rules are not particularly complicated, but the details are easy to overlook without a consistent process. Getting it right protects your business from unnecessary penalties and keeps your relationships with suppliers and contractors straightforward — they need that certificate from you to manage their own tax affairs.