Tax AI for Thai companies: let AI read receipts, check VAT and prepare your P.P.36
An AI tax assistant reads receipts and tax invoices, decides for each one whether input VAT can be claimed and whether it is a deductible expense, and prepares the monthly tax forms before they fall due — such as P.P.36, the 7% VAT a VAT-registered Thai company must self-assess on foreign software, cloud and AI services by the 7th of the following month (the 15th if filed online). iReadCustomer's Akon AI does this every month, and nothing is booked until you approve it.
What "AI tax" can mean
People search "AI ภาษี" (AI tax) with at least four different questions in mind. For a Thai company today, the first two affect the books every month.
| Meaning | What it is | What a business should do |
|---|---|---|
| AI that does tax work | AI reads receipts and tax invoices, checks the evidence and prepares the monthly forms | Use a tool that waits for human approval and hands a pack to your accounting firm |
| Tax on AI services | ChatGPT, Claude, AI APIs and foreign cloud carry 7% VAT | VAT-registered companies give the platform their tax ID and file P.P.36 by the 7th of the following month (the 15th by e-Filing) |
| The Revenue Department using AI | The Revenue Department is applying AI to tax administration and audits | Keep complete evidence in the company name and file on time |
| Taxing AI itself | International policy proposals to tax AI systems and automation | Still a policy debate; follow how it develops |
What an AI tax assistant does for a company
The slowest part of the month is chasing evidence one receipt at a time. AI covers the path from a receipt arriving to the accountant's desk. Akon AI's steps, for example:
- Receipts flow in on their own: a photo in LINE or Discord, a forwarded invoice email or a whole folder. AI reads the vendor, amount and VAT.
- Every document is checked: two verdicts each — can the input VAT be claimed, and is it a deductible expense. Problems surface while the vendor can still reissue.
- P.P.36 is worked out for you: foreign software and cloud bills are totalled, 7% VAT computed, and you are reminded before the 7th.
- Receipt substitutes: payment vouchers, receipt-substitute certificates and cash bills with numbers, signed online by the payee.
- Month-end pack: vouchers, P.P.36 and withholding-tax forms as one PDF, or straight into the company Google Drive.
- Money in: quotations, invoices, receipts and tax invoices; payments recorded with slips; bank statements reconciled.
Paying for ChatGPT, Claude or foreign cloud: do you file P.P.36?
If the company is VAT-registered, yes. When it pays a foreign provider for a service such as AI, cloud or software, it must self-assess 7% VAT and remit it on P.P.36 by the 7th of the following month (the 15th by e-Filing), then claim that amount as input tax the month after.
The e-Service rules in force since 1 September 2021 make foreign providers with more than THB 1.8 million a year from Thai users charge VAT to customers who are NOT VAT-registered. A VAT-registered company should give the platform its tax ID; the platform then bills the service only and the company remits the VAT itself on P.P.36. Many companies miss this, assuming e-Service already covers them.
Some payments may also need withholding tax on P.P.D.54, normally at 15%, depending on the type of income and the tax treaty. Have your accounting firm confirm case by case.
The Revenue Department uses AI. What should a business prepare?
The Revenue Department ran an "AI for tax collection management (Tax AI)" course for its senior administrators on 22 September 2025, and has been reported applying AI to in-depth tax audits. The more data an audit uses, the easier missing or misnamed evidence is to find.
- Tax invoices must be in the company name. One issued to an employee is non-claimable input tax under Section 82/5, though still deductible with a payment voucher.
- For spending without a receipt, issue a receipt-substitute certificate or payment voucher at the time, not at year end.
- File P.P.36 for foreign services on time every month.
- Reconcile bank statements with recorded income and expenses, including accounts held on the company's behalf.
AI tax tools do not replace your accountant
Akon AI prepares the work for the accounting firm you already use; you do not change firms. The AI assistant always proposes a plan first and nothing changes until you approve it. Money decisions, such as approving an expense or issuing a numbered document, are limited to admins and owners, and every change is logged with who did what, and can be undone.
Akon AI fits Thai VAT-registered companies that outsource bookkeeping, especially those paying foreign software or cloud providers and with staff who pay first and claim later.
AI tax: common questions
What is AI tax (AI ภาษี)?
In a business context it means using AI to read receipts and tax invoices, check whether input VAT can be claimed and the expense deducted, and prepare monthly forms such as P.P.36 and withholding tax. The term is also used for tax on AI services, the Revenue Department using AI, and proposals to tax AI itself.
Can AI do my tax instead of an accountant?
AI can do almost all of the preparation — reading documents, checking evidence and assembling the monthly pack — but booking and filing should still go through an accounting firm. Akon AI sends its pack to the firm you already use, and nothing changes until you approve it.
My company pays for ChatGPT or Claude. Do we file P.P.36?
If you are VAT-registered, yes. Give the platform your tax ID, compute 7% VAT on the service fee and remit it on P.P.36 by the 7th of the following month (the 15th by e-Filing). That amount can be claimed as input tax the month after.
When is P.P.36 due?
On paper, within 7 days of the end of the month you paid — the 7th of the next month; by e-Filing, the 15th. Akon AI totals the month's foreign services and reminds you before it falls due.
Can we claim input VAT on a tax invoice issued to an employee?
No. It is non-claimable input tax under Section 82/5, though still deductible with a payment voucher. Akon AI flags it when the document arrives, so a new one in the company name can be requested while the vendor is still reachable.
Does the Revenue Department really use AI?
It ran an "AI for tax collection management (Tax AI)" course for its senior administrators on 22 September 2025, and has been reported applying AI to in-depth audits. The best defence is complete, correct evidence from the day you pay.
Which companies is Akon AI for?
Thai VAT-registered companies that outsource bookkeeping, especially those paying foreign software or cloud providers and with staff who pay first and claim later.
How does a company start using Akon AI?
Sign up yourself on the Akon AI site: sign in with Google or LINE and create your business right away. You start on the Free plan, which reads 10 documents a month. An admin then invites the team by email, or lets anyone with a company-domain email join, and you keep your accounting firm.
Is our company data safe?
Only people the company authorises can sign in, and edit rights follow each person's role. If Gmail is connected, access is read-only and limited to invoice emails from the vendors you name; Akon never sends email and never uses the content for ads or to train AI models.
Does Akon AI work with Claude or Codex?
Yes. Connect Claude Code, Codex, Cursor or any MCP client with one command. Your agent matches receipts, checks tax and prepares month-end work on your behalf, and every change waits as a plan for your approval.
Sources
- Revenue Department: form P.P.36 and filing instructions (due 7 days after month-end; base is the amount actually paid)
- Revenue Department: what e-Service tax is
- Revenue Department: "AI for tax collection management (Tax AI)" course
- PEAK: P.P.36 explained (15-day e-Filing deadline; input tax the following month)
Read next
- P.P.36 in Thailand: who files, when it is due (full guide)
- P.P.36 for Facebook (Meta) ads
- P.P.36 for Google Ads
- P.P.36 for ChatGPT and foreign AI tools
- AI accounting software in Thailand: 6 tools compared
- All iReadCustomer products
- AI automation for documents and back office
- Custom AI development
- A 90-day AI adoption playbook for Thai SMEs
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