Taiwan Tax Regime

Taiwan combines a moderate 20% corporate income tax with several distinctive overlays: a 5% surtax on undistributed corporate earnings, an alternative-minimum 'income basic tax' (IBT) that claws back excessive use of exemptions, and a securities transaction tax that substitutes for capital gains taxation of shares. Resident companies are taxed on worldwide income and individuals under a progressive schedule topping out at 40%, with an integrated but optional flat tax on dividends. The system is administratively sophisticated — built around the government uniform invoice (GUI) mechanism for VAT — and internationally is characterised by a treaty network of around 35 agreements, OECD-aligned transfer pricing, CFC rules effective since 2023, and a planned alignment of the corporate minimum tax with the Pillar Two 15% standard for large multinational groups.

1.1 Sources

Primary legislation includes the Income Tax Act, the Income Basic Tax Act, the Value-Added and Non-Value-Added Business Tax Act, the Tax Collection Act, the Statute for Industrial Innovation and the Business Mergers and Acquisitions Act.

1.2 Recent developments

The corporate rate remains 20%, with taxable income up to TWD 120,000 exempt. The company-level income basic tax operates for 2025 at 12% on basic income after a TWD 600,000 deduction; draft proposals would raise the IBT rate to 15% from tax year 2025 for Taiwan entities of multinational groups meeting the OECD global minimum tax threshold, moving Taiwan toward Pillar Two equivalence. The CFC regime for both companies and individuals has been in force since 2023, the house and land transactions tax 2.0 regime continues to apply high rates to short-held real estate, and incentives for advanced-technology R&D and equipment under the Statute for Industrial Innovation (including the provisions popularly associated with the semiconductor industry) have been extended and enhanced.

Headline statutory corporate income tax rate for a resident company. Where sub-national (state, provincial, cantonal or municipal) corporate taxes apply, the combined rate reported by the OECD is shown. Projected 2026–2028 rates carry the current rate forward unless a change is already enacted or officially scheduled. As-of 2026.

Top marginal statutory personal income tax rate on employment income for a resident individual. Where sub-national (state, provincial, cantonal or municipal) income taxes are a standard part of the system, the combined top rate is shown. Projected 2026–2028 rates carry the current rate forward unless a change is already enacted or officially scheduled. As-of 2026.

2.1 Rates and residence

Companies incorporated under Taiwan law, or foreign companies with their head office in Taiwan, are resident and taxed on worldwide income at 20%; taxable income up to TWD 120,000 is exempt, with marginal relief just above the threshold. A non-resident company with a fixed place of business (FPOB) or business agent in Taiwan files an annual return and is taxed like a resident on Taiwan-source income; without an FPOB or agent, tax is collected by withholding at source. A qualifying shipping enterprise with its head office in Taiwan may elect the tonnage tax system — a lump-sum tax on fleet net tonnage, binding for ten years, with no loss carryforwards or incentives while it applies. There are no provincial or municipal income taxes on corporate profits.

Two overlays are distinctive. First, a profit retention tax of 5% applies to current earnings that remain undistributed by the end of the following year (branches of foreign companies are exempt); the surtax can be reduced by qualifying substantive reinvestment. Second, the income basic tax (IBT) requires companies enjoying specified exemptions to compute basic income under statutory formulae, deduct TWD 600,000, and apply 12% (2025); where the IBT exceeds regular tax, the difference is payable in addition.

2.2 Dividends and participation exemption

Dividends received by a resident company from another resident company are excluded from taxable income regardless of the size of the holding — a complete domestic intercorporate exclusion. Dividends from foreign subsidiaries are fully taxable when received, with a direct foreign tax credit for withholding taxes and, under most treaties, no indirect credit; the CFC regime accelerates taxation of low-taxed offshore earnings (section 2.7). Gains on the sale of Taiwan securities are exempt from income tax (the 0.3% securities transaction tax applies instead) but are added back for IBT purposes at company level, so heavy trading gains can trigger the 12% minimum tax.

2.3 Income determination and deductions

Taxable income follows the financial accounts adjusted under the Income Tax Act and detailed assessment rules. Ordinary and necessary business expenses are deductible with statutory ceilings for entertainment and certain fringe items; CPA certification of the return raises several ceilings and is market practice for companies of any size. Depreciation follows prescribed service lives (straight-line, fixed-percentage or working-hour methods); goodwill from qualifying acquisitions is amortisable over at least five years under the Business Mergers and Acquisitions Act. Inventory may be valued at cost or the lower of cost and net realisable value. Payments lacking withholding compliance or supporting GUIs risk disallowance, making invoice discipline a core tax control.

2.4 Interest limitation and thin capitalisation

Interest on related-party debt in excess of a 3:1 debt-to-equity ratio is non-deductible under Taiwan's thin capitalisation rule (financial institutions are excluded). Interest on loans from non-financial lenders is further capped by reference to the maximum interest rate published by the tax authority, and interest attributable to funds on-lent interest-free to related parties can be disallowed. There is no EBITDA-based general interest barrier. Interest paid offshore bears withholding (section 4), so the deduction and withholding positions should be planned together.

2.5 Losses

Net operating losses may be carried forward for ten years by companies that keep complete accounting books, file blue returns or have their returns certified by a CPA, and file on time — conditions that are easily met but strictly enforced. There is no loss carryback. Loss carryforwards survive qualifying mergers in proportion to the shareholding continuity of the surviving entity, and are unavailable during tonnage-tax election periods.

2.6 Group taxation

Consolidated filing is available only in narrow cases: a financial holding company holding 90% or more of a domestic subsidiary for twelve consecutive months, or a parent in an approved merger/consolidation under the Business Mergers and Acquisitions Act meeting the same 90% test, may elect to file a consolidated return for CIT and the undistributed earnings surtax. Outside these regimes each company files separately, and losses cannot be surrendered between affiliates. VAT grouping does not exist, though head office and branches within Taiwan may consolidate business tax filing with approval.

2.7 Controlled foreign companies

Effective from 2023, a foreign affiliated enterprise in a low-tax jurisdiction — statutory rate below 14% or a territorial regime taxing only domestic income — is a CFC where Taiwan residents hold, directly or indirectly, 50% or more of its shares or exercise significant control. The Taiwan corporate shareholder must include its pro-rata share of the CFC's current earnings as investment income, unless the CFC has substantive operating activities or its current-year earnings fall below TWD 7 million (aggregated across CFCs). Actual later distributions are not taxed again, and foreign tax paid on distribution is creditable within limits. The rules effectively ended the traditional deferral through offshore holding and trading companies.

2.8 Transfer pricing

Transfer pricing assessment rules follow the arm's-length principle and OECD methods, with contemporaneous documentation required when filing: a transfer pricing report (local file) for companies above revenue and related-party transaction thresholds, a master file for groups above TWD 3 billion of annual revenue (with cross-border transactions above thresholds), and country-by-country reporting for groups with consolidated revenue of TWD 27 billion or more. Disclosure forms accompany the annual return. Advance pricing arrangements are available for substantial transactions, and the authorities actively adjust intragroup services, financing and intangibles pricing; a safe-harbour exempts smaller taxpayers from the full report in favour of substitute documentation.

2.9 Incentives

The Statute for Industrial Innovation anchors the incentive system: companies may credit 15% of qualifying R&D expenditure against current-year tax (or 10% spread over three years), capped at 30% of the year's tax liability. Enhanced provisions for companies with large-scale R&D in advanced and innovative technologies allow a 25% R&D credit and a 5% credit for advanced-process equipment purchases, subject to effective-rate floors. Credits are also available for investments in smart machinery, 5G and cybersecurity. Undistributed-earnings surtax relief applies where earnings are reinvested in substantive construction or equipment within three years. Free trade zones, bonded factories and science parks provide customs and business-tax advantages, and approved royalties for the introduction of new production technology can be exempt from income tax.

2.10 Pillar Two

Taiwan is not an OECD Inclusive Framework member but is aligning unilaterally. Draft proposals would raise the company IBT rate from 12% to 15% from tax year 2025 for Taiwan entities of multinational groups meeting the EUR 750 million global minimum tax threshold, so that Taiwan collects the top-up domestically rather than ceding it to foreign IIR/UTPR jurisdictions. Taiwan-parented groups within scope of other countries' rules must already compute GloBE effective rates for their Taiwan operations, where the 20% headline rate but generous R&D credits and exempt securities gains can pull jurisdictional ETRs toward the 15% line. No IIR or UTPR of Taiwan's own has been enacted as of June 2026.

2.11 Branch income and reorganisations

A Taiwan branch of a foreign company pays CIT at 20% on Taiwan-source profits, files annual returns, and — unlike a subsidiary — is exempt from the 5% undistributed earnings surtax and can remit after-tax profits to its head office without dividend withholding, making branches attractive for repatriation-heavy operations. Non-resident companies without an FPOB may apply for deemed-profit taxation on Taiwan-source service and rental income (commonly a 15% deemed profit ratio for technical services, yielding an effective 3% withholding with approval). Mergers, spin-offs and share exchanges under the Business Mergers and Acquisitions Act can be executed with tax deferral — including land value increment tax deferral and loss preservation subject to continuity — where consideration is predominantly voting shares.

3.1 Residence and rates

Individuals domiciled in Taiwan who ordinarily reside there, or non-domiciled individuals present for 183 days or more in a calendar year, are resident. Residents are taxed on Taiwan-source income under consolidated income tax at progressive rates of 5%, 12%, 20%, 30% and 40%, with brackets indexed periodically (the 40% rate applies above roughly TWD 5 million of net taxable income). Generous standard and special deductions — including salary, savings, education and long-term care deductions — remove much low income from tax. Non-residents are taxed by withholding at flat rates, typically 18% on salaries and 21% on dividends. Foreign-source income of residents is outside the regular tax but is captured by the individual IBT: overseas income of TWD 1 million or more counts toward basic income, which is taxed at 20% above an exclusion of TWD 7.5 million with credit for regular tax and foreign tax.

3.2 Capital income and real estate

Dividends from Taiwan companies give residents a choice: include them in consolidated income with a credit of 8.5% of the dividend (capped at TWD 80,000 per household), or tax them separately at a flat 28% — the flat rate generally wins for top-bracket taxpayers. Interest enjoys a savings deduction of up to TWD 270,000 per household. Gains on Taiwan-listed and unlisted securities are exempt from income tax (the 0.3% securities transaction tax applies to sales of shares), though gains on unlisted shares count toward the individual IBT. Real estate acquired from 2016 is taxed under the house and land transactions tax at 15–45% depending on holding period (45% within two years, declining to 15% beyond ten years for residents), self-assessed within 30 days of transfer, with a TWD 4 million exemption and 10% rate for a qualifying self-use residence.

3.3 Social security and payroll

Employers withhold salary tax monthly under withholding tables or a flat 5%. Labour insurance (ordinary risk premium around 12% including employment insurance, shared roughly 70/20/10 among employer, employee and government), national health insurance of 5.17% (borne 60/30/10) plus a 2.11% supplementary premium on bonuses and non-salary income, and a mandatory 6% employer pension contribution under the Labour Pension Act (employees may add up to 6% voluntarily, tax-deferred) apply on capped, ranked salary bases. The aggregate employer on-cost is roughly 17–19% of salary within the caps. Year-end reconciliation is through the annual consolidated return each May, with pre-filled data downloadable from the tax authority.

3.4 Inbound individuals

Foreign professionals approved under the Act for the Recruitment and Employment of Foreign Professionals enjoy a 50% exclusion of salary above TWD 3 million from taxable income for their first five years, plus exclusion of overseas income from the IBT during that window. The 183-day rule governs the shift from flat non-resident withholding to resident progressive taxation, and short-business-trip salaries borne offshore can remain outside Taiwan tax within day-count limits. There is no general wealth tax; estate and gift tax applies at 10%/15%/20% with substantial exemptions (estate exemption TWD 13.33 million, annual gift exclusion TWD 2.44 million). Taiwan residents' worldwide estates are in scope; non-residents only Taiwan-situs assets.

Payments to non-residents without a Taiwan FPOB bear withholding at source: 21% on dividends, 15% or 20% on interest (15% for short-term bills, securitisation certificates, corporate bonds, government bonds and interest from repo transactions; 20% otherwise), and 20% on royalties, technical service fees and most other Taiwan-source business income. Deemed-profit relief can reduce the effective rate on technical services and international transport with advance approval (commonly to 3% and 2% respectively), and approved technology-introduction royalties can be exempt. Taiwan's roughly 35 comprehensive treaties — including the UK, Japan, Singapore, the Netherlands, Germany, France, Canada and Australia — typically reduce dividends to 10–15%, interest to 10–15% and royalties to 10%, with business profits protected absent a permanent establishment. Treaty relief generally requires pre-approval or refund claims with residence certificates.

Withholding must be remitted within ten days of payment for non-resident payees, with statements filed; resident-payee withholding follows monthly cycles with January annual reporting. The undistributed earnings surtax interacts with distribution policy: a subsidiary that distributes avoids the 5% surtax but triggers 21% shareholder withholding, while a branch pays neither surtax nor remittance withholding — a structural difference that drives entity choice (section 9.1). Taiwan has no treaty with the United States of general application, although reciprocal exemptions cover international transport and a bilateral agreement addressing double taxation has been under negotiation.

5.1 General anti-abuse and PEM

The Tax Collection Act codifies substance-over-form: taxation follows the existence of the substantive economic benefit rather than the legal form, and arrangements abusing legal forms to evade constituent elements of taxation can be recharacterised, with the burden partly on the authority. Specific regimes do most of the anti-avoidance work: transfer pricing and disguised distribution adjustments, thin capitalisation, the CFC rules, and a legislated (but not yet activated) place-of-effective-management test that would treat foreign companies managed from Taiwan as resident once brought into force by the Executive Yuan. The individual and corporate IBT regimes backstop exemption stacking.

5.2 Information exchange and disclosure

Taiwan implements the Common Reporting Standard unilaterally, exchanging financial account information with partners including Japan, Australia and the UK under bilateral arrangements, and requires CbCR filing or surrogate filing with exchange where available. Related-party disclosure forms accompany the corporate return, and CFC disclosure now extends to individuals with 10%+ interests in low-tax-jurisdiction entities. Exit-style charges are limited — Taiwan has no general corporate exit tax — but outbound transfers of appreciated assets and non-arm's-length reorganisations are policed through transfer pricing and deemed-sale rules. Anti-treaty-shopping practice relies on beneficial-ownership scrutiny in the pre-approval process for treaty relief.

6.1 VAT and gross business receipts tax

Business tax takes two forms. VAT applies at 5% on sales of goods and services and on imports, administered through the government uniform invoice (GUI) system, with zero-rating for exports and export-related services and exemptions for land, certain financial services and specified necessities. Returns are filed bi-monthly (monthly optional for zero-rated businesses) by the 15th of the following period. Non-VAT (gross business receipts tax) applies to financial institutions at 2% on core banking/insurance revenue (5% on non-core), and to small businesses at 0.1–1%. Non-resident providers of cross-border B2C electronic services must register once annual sales exceed TWD 600,000, issue cloud GUIs and file at 5%. Input VAT is creditable against output VAT with refunds for zero-rated activity; the GUI lottery gives consumers an incentive to demand invoices, making underreporting hard.

6.2 Transaction, property and other taxes

The securities transaction tax is 0.3% on share sales (0.15% for day-trading of listed shares under the extended concession; 0.1% on corporate bonds, currently exempt) and the futures transaction tax applies at rates from 0.0000125% to 0.6%. Stamp tax applies at 0.1% on monetary receipts and 0.1–0.4% on contracts for deeds and construction; deed tax of 6% applies to building transfers. Land bears land value tax (1–5.5%) and, on transfer, land value increment tax at 20–40% on the increase in officially assessed value (10% for self-use residences); buildings bear house tax at 1.2–4.8% with higher 'hoarding' rates for multiple non-self-use homes. Commodity tax applies to vehicles, electrical appliances and other listed goods; tobacco and alcohol tax, a specifically-selected goods and services tax on luxury items, amusement tax and estate and gift tax (10–20%) complete the system. There is no net wealth tax.

7.1 Filing, assessment and audit

The tax year is the calendar year; a different fiscal year may be approved. Corporate returns are filed between 1 and 31 May following the year-end, with tax paid on filing; a provisional payment equal to half of the prior year's tax (or based on interim results with CPA certification) is made in September. Withholding statements are filed each January, and the undistributed-earnings surtax return accompanies the following year's filing. The National Taxation Bureaus assess returns on a risk basis, with CPA-certified returns enjoying presumptive reliability on capped items; e-filing is near-universal. The statute of limitations is five years for filed returns (seven where no return was filed or for fraud/evasion), and books, GUIs and vouchers must be retained accordingly.

7.2 Rulings, appeals and penalties

Taxpayers may seek advance rulings on significant transactions (with expedited procedures for inbound investments) and advance pricing arrangements for related-party dealings. Disputes proceed through administrative remedies: an application for recheck with the assessing bureau, then a petition (administrative appeal) to the Ministry of Finance, then litigation before the administrative courts, with payment or security of half the disputed tax generally required to suspend collection at the recheck stage. Penalties include delinquency surcharges, interest, and fines of up to two times the underpaid tax for underreporting (up to three times for non-filing), with substantial mitigation tables applied in practice and relief for voluntary supplementary filing with interest before a case is reported or investigated.

Deadlines falling on holidays roll forward, and the Ministry of Finance routinely extends the May filing season by announcement when systems or public-health conditions require. CFC disclosures, transfer pricing disclosure forms and master file/CbCR notifications ride on the annual May return, concentrating the compliance load in the second quarter.

9.1 Entity choice

The company limited by shares is the standard subsidiary form, with no minimum capital beyond adequacy for the business plan (regulated sectors aside) and a modern flexible-share regime for closely held companies. The limited company suits simple wholly owned operations. The subsidiary-versus-branch decision is unusually consequential in Taiwan: a branch escapes both the 5% undistributed earnings surtax and dividend withholding on repatriation, while a subsidiary offers liability separation, incentive eligibility and easier local contracting. Representative offices may negotiate and sign contracts for the head office but not trade. Foreign investment approval (FIA) from the Investment Commission is required for most inbound equity investments, with a screening regime for sensitive sectors and PRC-related investors.

9.2 Structuring and incentives

Technology and manufacturing investors should model the Statute for Industrial Innovation credits — 15% of R&D (capped at 30% of tax), and for large advanced-technology programmes the 25% R&D and 5% equipment credits with their minimum-effective-rate conditions — alongside science park and bonded-zone customs advantages. Distribution policy should be set with the 5%-surtax/21%-withholding trade-off in mind, using treaty rates of 10% where the parent jurisdiction qualifies. Financing should respect the 3:1 related-party thin capitalisation ratio and published interest-rate caps; royalty structures should test the technology-introduction exemption. Groups near the EUR 750 million Pillar Two threshold should track the pending 15% IBT increase, which will reshape the value of Taiwan credits for in-scope entities.

9.3 Worked effective-rate illustration

A Taiwan electronics subsidiary earns EBITDA of TWD 200,000,000, books depreciation of TWD 30,000,000 and net interest expense of TWD 20,000,000, all deductible (related-party debt within 3:1). Taxable income is 200,000,000 − 30,000,000 − 20,000,000 = TWD 150,000,000. Regular CIT at 20% is TWD 30,000,000. Qualifying R&D spend of TWD 40,000,000 earns a 15% credit of TWD 6,000,000, within the 30%-of-tax cap (30% × 30,000,000 = TWD 9,000,000), so tax payable is 30,000,000 − 6,000,000 = TWD 24,000,000 — an effective rate of 24,000,000 / 150,000,000 = 16.0%. The IBT check: basic income approximately equals taxable income here, so IBT ≈ 12% × (150,000,000 − 600,000) ≈ TWD 17.9 million, below the regular amount, so no top-up. If the after-tax profit of TWD 126,000,000 is fully distributed to a treaty parent at 10% withholding, total tax is 24,000,000 + 12,600,000 = TWD 36,600,000, a combined 24.4%; at the domestic 21% rate the combined burden is 24,000,000 + 26,460,000 = TWD 50,460,000, or 33.6%. Full retention instead attracts the 5% surtax on undistributed earnings.

9.4 Compliance

Plan for GUI issuance from the first sale (including e-GUI systems integration), bi-monthly business tax filings, monthly payroll withholding and labour/health insurance administration, the May filing season bundling CIT, surtax, transfer pricing disclosures and CFC reporting, and the September provisional payment. CPA certification of the CIT return is advisable for loss carryforward protection and higher deduction ceilings. Foreign-invested companies add FIA condition compliance and annual investment reporting. Groups with offshore holding structures must maintain CFC financial statements audited or reviewed to Taiwan standards to support the substantive-operations and TWD 7 million de minimis positions.