Import transactions
Import one CSV and sync the transactions with Xero.
Prepare your monthly Thai tax filings.
ThaiTax turns your accounting records into VAT reports, withholding tax certificates and files for RD Prep.
Requires a Xero organisation. Free for 14 days, no credit card required.
Not using Xero? Join the waitlistTHIS MONTH IN THAITAX
Your monthly tax documents, ready.
01Transaction vouchers✓
02Input & output VAT for PP 30✓
0350 Tawi certificates and PND 3 / 53✓
WHAT THAITAX DOES FOR YOU
Prepare your monthly tax documents from Xero
Keep your bookkeeping in Xero. Use the same records to prepare your VAT reports, withholding tax certificates and PND 3 / 53 files.
Withholding tax certificates without the spreadsheet
Pay a supplier and the 50 Tawi certificate is created for you, in the Revenue Department format, ready to send.
Bilingual tax invoices and receipts
Thai and English tax invoices generated from the same record, so your Thai customers and your overseas head office both get what they need.
Help when you want it
Do it yourself, or let Plizz’s accountants run your books and filings in the same system.
Every client in one account
Connect each client’s Xero organisation and switch between them in a click. Unlimited users for your whole team.
Monthly tax preparation from synced data
VAT reports for PP 30, 50 Tawi certificates and PND 3 / 53 TXT files come straight from each client’s books. Process the TXT files in RD Prep, then upload them to e-Filing.
Review AI-drafted entries
AI turns supplier invoices and receipts into draft accounting entries. Your team checks and confirms each one before it is booked.
Volume pricing that drops as you grow
From ฿999 down to ฿499 per organisation per month, with one month free on the yearly plan at every tier.
XERO APP STORE REVIEWSRated 4.9 / 5
Rated 4.9 / 5
by Xero users.
ThaiTax is a Xero App Partner, with an integration certified by Xero.
★★★★★
“good!! withholding tax certificate generates automatic after record payment”
ดีมาก!! หนังสือรับรองการหักภาษี ณ ที่จ่ายสร้างให้อัตโนมัติหลังบันทึกการจ่ายเงิน
★★★★★
“Easier for WHT certificated issuing and recording account transactions”
ออกหนังสือรับรองการหักภาษี ณ ที่จ่ายและบันทึกรายการบัญชีได้ง่ายขึ้น
★★★★★
“It is the user friendly system. The package is reasonable”
เป็นระบบที่ใช้งานง่าย ราคาแพ็กเกจสมเหตุสมผล
ON XERO SINCE 2021Rated 4.9 / 5 by Xero users
INTEGRATIONS
Integration with Xero
Keep your books in Xero and prepare Thai tax documents in ThaiTax. Invoices, bills and manual journals sync both ways.
View ThaiTax on the Xero App StoreUp and running in three steps.
-
Create an account
Try ThaiTax free for 14 days. No credit card needed.
-
Connect Xero
Choose which organisations to sync with ThaiTax.
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Prepare tax documents
Generate VAT reports, 50 Tawi certificates and PND files.
See ThaiTax in action.
Explore a month of accounting in a demo company, from invoices to tax reports.
Review AI drafts
Upload an invoice or receipt. Check the draft before you post it.
Prepare tax documents
Generate VAT reports for PP 30, 50 Tawi certificates and PND 3 / 53 files.
How filing works
- PP 30: use your VAT report totals to complete the return on the Revenue Department’s e-Filing website.
- PND 3 / 53: process your export files in RD Prep, then upload them to e-Filing.
RD Prep is the Revenue Department’s free program that converts your withholding tax data into files you can submit online through e-Filing.
PRICINGSimple pricing.
Simple pricing.
Room to grow.
Pay per connected organisation. One organisation means one connected company in Xero. The rate drops as you add organisations, and paying yearly gives you one month free at every tier.
- ✓ All features included
- ✓ Unlimited users
- ✓ Unlimited transactions
- ✓ 14-day free trial, no credit card
Monthly
฿999/ organisation / month
Yearly
1 MONTH FREESave ฿999 per organisation every year
14 days free, no credit card. Choose monthly or yearly when the trial ends.
Prices exclude 7% VAT. Your Xero subscription is billed separately by Xero.
Prefer an accountant to handle it?
Plizz, the Bangkok accounting firm that built ThaiTax, can do it for you.
Let Plizz handle your bookkeeping
Plizz’s accounting team manages your books in Xero and handles your monthly Thai tax filings with ThaiTax.
Talk to our teamGet set up with Xero and ThaiTax
Plizz sets up Xero and ThaiTax for you, then takes care of bookkeeping and monthly filings from day one.
Talk to our teamDoing it yourself but new to Xero? Open a Xero account first, then connect it to ThaiTax. Try Xero for freeAbout Plizz accounting services
Getting started
Do I need Xero?
Yes, for now. ThaiTax connects to your organisation in Xero, or to each client’s, and data you import by CSV syncs to Xero. A standalone version is planned for 2027, with an open API for other accounting software.
What do I need to set up?
Connect your Xero organisations and ThaiTax brings in your history, then keeps invoices, bills, manual journals, contacts, chart of accounts and tracking categories in sync. Before your first filing, review your Thai tax settings such as withholding tax types and bank accounts. If you prefer, Plizz can set everything up for you.
How does the free trial work?
You get 14 days with all features. No credit card is required to start.
Tax documents and filing
Which Thai tax documents does ThaiTax prepare?
Transaction vouchers, input and output VAT reports for PP 30, withholding tax certificates (50 Tawi) following the Revenue Department form, and PND 3 / 53 files for RD Prep.
What is RD Prep?
RD Prep is a free program from the Revenue Department. It checks your withholding tax data and converts it into the official format, so you can submit PND 3 and PND 53 online through e-Filing instead of keying every line by hand. ThaiTax produces the files RD Prep imports.
Can I file my tax returns online with ThaiTax?
You file through the Revenue Department’s e-Filing website, and ThaiTax prepares what you need. For the PP 30 VAT return, use the totals from your ThaiTax VAT report to complete the return on e-Filing. For PND 3 and PND 53, process the ThaiTax export files in RD Prep, then upload them to e-Filing.
Does the AI book entries on its own?
No. AI reads the PDF and prepares a draft. Your team reviews and confirms every entry before it is booked.
Billing and support
How is the price calculated?
Per connected organisation. Monthly rates go from ฿999 down to ฿499 per organisation as you add organisations, and yearly billing gives you one month free. Users and transactions are unlimited. Prices exclude 7% VAT.
How does billing work?
ThaiTax is billed by Plizz (Thailand) Co., Ltd. for each connected organisation, every month or once a year on the yearly plan. For a question about an invoice or your subscription, choose “Billing or subscription” in the contact form or email thaitax@plizz.co.
I am already a customer. How do I get help?
Use the contact form and choose “I am a customer and need support”, or email thaitax@plizz.co with your organisation name and a screenshot of the issue.
Can we talk to someone before we start?
Of course. Use the Talk to our team form at the bottom of this page, email thaitax@plizz.co or call +66 2 821 5100, and our team will walk you through ThaiTax.
NOT ON XERO?
More platforms are on the way.
Today ThaiTax works with Xero. A standalone version is planned for 2027, along with an open API to connect other accounting software. Tell us which software you use and we will build the most requested connections first.
Try ThaiTax on your next tax filing.
Free for 14 days. No credit card required. Connect the Xero organisations you already manage.