Free 50 Tawi generator — no login
Use this free tool to issue a Section 50 Bis withholding-tax certificate (50 ทวิ) in the Revenue Department format — for when you are the payer who withheld tax (for example, you hired a freelancer and deducted withholding), which makes it your duty to give the payee a certificate. Enter the payer and payee details, the income type and rate, and the amount, then generate the certificate and print or Save-as-PDF straight from your browser. No login, and your data is not stored. Failing to issue a 50 Tawi can carry a fine of up to ฿2,000 per certificate (Section 35). Note: if you are the one being paid, you receive the 50 Tawi from your client — you do not issue it.
Fill in the fields, generate a Section 50 Bis withholding-tax certificate in the Revenue Department format, then print or Save-as-PDF from your browser. Your data is not stored.
Here you are the payer who withheld tax, so you must issue a 50 Tawi to the payee under Section 50 Bis of the Revenue Code — failing to do so can carry a fine of up to 2,000 baht per certificate under Section 35 of the Revenue Code.
This tool is single-use — you retype each time, and we store nothing about the payer or payee. A BillsOS account saves your parties and document numbers so you re-issue in one click and keep a history of every certificate.
Sign up free to save parties and re-issue →
No credit card required — start on the free plan.
Worked scenarios
Scenario 1 — Hire a designer for ฿10,000 at 3%
You are a company paying a ฿10,000 design fee, withholding 3% = ฿300, transferring ฿9,700, and must issue a 50 Tawi to the payee. Enter payer/payee names, income type “service”, amount 10,000, then generate.
Scenario 2 — Pay a juristic person (P.N.D.53)
If the payee is a juristic person, tick “Payee is a juristic person” so the certificate reflects P.N.D.53 instead of P.N.D.3. Failing to issue can carry a fine of up to ฿2,000 per certificate (Section 35) — confirm with the Revenue Department or your accountant.
Frequently asked questions
Do I need an account to issue a 50 Tawi here?+
Who issues a 50 Tawi?+
If I am the payee, should I use this tool?+
Cite: Revenue Code Sections 50 Bis and 35 · confirm current rules at rd.go.th / hotline 1161 · updated Jul 2026
BillsOS only formats and computes documents for you. This is general information, not tax advice — please confirm with the Revenue Department or your accountant.