Th Corporate Income Tax

---
name: th-corporate-income-tax
description: "Source-cited draft: corporate income tax for Thailand (tax year 2025) — rates, thresholds and rules with primary-source citations. Unverified; pending local-accountant review."
license: "AGPL-3.0-or-later (code) / OpenAccountants Guide License v1.0 (content)"
metadata:
  source: openaccountants
  openaccountants_url: "https://www.openaccountants.com/skills/th-corporate-income-tax"
  jurisdiction: "TH"
  tax_year: "2025"
  last_updated: "2026-07-13"
---

# Thailand Corporate Income Tax

## Corporate income tax rates and base

- **Tax on worldwide/Thai-source profit** — Companies incorporated in Thailand are taxed on worldwide net profit; foreign companies are taxed on Thai-source profit. The standard rate is 20%, with reduced rates for qualifying SMEs.
- **Standard corporate income tax rate** — 20% percent  _(Thai Revenue Code, Section 65 bis / Royal Decree — https://taxsummaries.pwc.com/thailand/corporate/taxes-on-corporate-income)_
- **Tax base (Thai company)** — Net profit from worldwide sources, computed under the Revenue Code accrual basis  _(Thai Revenue Code, Section 65 — https://taxsummaries.pwc.com/thailand/corporate/taxes-on-corporate-income)_
- **Tax base (foreign company)** — Net profit from business carried on in Thailand (Thai-source profit)  _(Thai Revenue Code, Section 66 — https://taxsummaries.pwc.com/thailand/corporate/taxes-on-corporate-income)_
- **SME rate — net profit THB 0 – 300,000** — 0% (paid-up capital ≤ THB 5m and revenue ≤ THB 30m) percent  _(Royal Decree (SME corporate income tax reduction) — https://taxsummaries.pwc.com/thailand/corporate/taxes-on-corporate-income)_
- **SME rate — net profit THB 300,001 – 3,000,000** — 15% percent  _(Royal Decree (SME corporate income tax reduction) — https://taxsummaries.pwc.com/thailand/corporate/taxes-on-corporate-income)_
- **SME rate — net profit over THB 3,000,000** — 20% percent  _(Royal Decree (SME corporate income tax reduction) — https://taxsummaries.pwc.com/thailand/corporate/taxes-on-corporate-income)_
- **SME qualification test** — Paid-up capital not exceeding THB 5 million AND annual revenue not exceeding THB 30 million THB  _(Royal Decree (SME corporate income tax reduction) — https://taxsummaries.pwc.com/thailand/corporate/taxes-on-corporate-income)_
- **Withholding tax on dividends (to Thai company/individual)** — 10% percent  _(Thai Revenue Code, Section 70 — https://taxsummaries.pwc.com/thailand/corporate/withholding-taxes)_
- **Withholding tax on dividends (to non-resident)** — 10% (may be reduced by tax treaty) percent  _(Thai Revenue Code, Section 70 — https://taxsummaries.pwc.com/thailand/corporate/withholding-taxes)_
- **Withholding tax on interest (to non-resident)** — 15% (may be reduced by tax treaty) percent  _(Thai Revenue Code, Section 70 — https://taxsummaries.pwc.com/thailand/corporate/withholding-taxes)_
- **Withholding tax on royalties (to non-resident)** — 15% (may be reduced by tax treaty) percent  _(Thai Revenue Code, Section 70 — https://taxsummaries.pwc.com/thailand/corporate/withholding-taxes)_
- **Annual CIT return deadline (PND.50)** — Within 150 days of accounting period end  _(Thai Revenue Code, Section 68; Form PND.50 — https://taxsummaries.pwc.com/thailand/corporate/tax-administration)_
- **Half-year CIT return (PND.51)** — Within 2 months of the end of the first 6 months of the accounting period  _(Thai Revenue Code, Section 67 bis; Form PND.51 — https://taxsummaries.pwc.com/thailand/corporate/tax-administration)_

## Today's figures and who stands behind this skill

This file is an AI skill (tax rules your AI follows) from OpenAccountants, copied on 2026-07-13. Rates, thresholds and deadlines change. For the current version of this skill, its official sources and the named accountant (if any) who stands behind it, call `get_skill` with slug `th-corporate-income-tax` on the OpenAccountants connector (https://www.openaccountants.com/connect), or read https://www.openaccountants.com/skills/th-corporate-income-tax. If neither is available, confirm every figure against the official source pages cited above before relying on it.