Four-pillar insurance. Progressive tax. Taiwan payroll, solved.
Taiwan payroll is not a single-system problem. It demands a four-pillar contribution engine — Labor Insurance (BLI), National Health Insurance (NHIA), Employment Insurance, and Labor Pension — each with separate salary brackets, independent ceilings, and distinct premium-sharing ratios. Add progressive income tax withholding that shifts at the 183-day residency threshold, a 2.11% supplementary NHI premium on bonuses and irregular income, and Bureau of Labor Insurance grade tables that reset every January. Most providers configure two of these correctly. Mercans configures all of them — natively, on a single proprietary stack with no intermediaries.
native payroll
vs nearest peer
since inception
- Income Tax (Resident)
- 5%–40% progressive
- Income Tax (Non-Resident)
- 18% flat withholding
- Labor Insurance · Employer Share
- ~8.05% of insured salary
- Labor Insurance · Employee Share
- ~2.30% of insured salary
- LI Insured Salary Ceiling
- TWD 45,800/month
- NHI Rate · Total
- 5.17% (ER 60%, EE 30%)
- NHI Supplementary Premium
- 2.11% on bonus income
- NHI Insured Salary Ceiling
- TWD 150,000/month
- Labor Pension · Employer
- 6% to individual account
- Standard Deduction (Single)
- TWD 136,000/year
- Personal Exemption
- TWD 101,000/person
- Minimum Wage (2026)
- TWD 29,500/month
- Overtime · First 2 hours
- 134% of regular pay
- Annual Leave · Year 1
- 3 days (after 6 months)
- Withholding Deadline
- 10th of following month
Getting Taiwan payroll “mostly right” is the most expensive mistake
Taiwan’s Ministry of Labor and Bureau of Labor Insurance conduct proactive audits against grade tables and contribution records. A single unregistered worker on the day of an occupational incident creates direct employer liability. Non-residents departing before 183 days without withheld tax leave employers on the hook. Supplementary NHI on irregular income is routinely missed and results in back-assessments.
Residency threshold withholding failure
Employers who apply progressive resident rates to foreign workers who ultimately stay fewer than 183 days become liable for the underpaid 18% non-resident withholding. If the worker departs before paying, the employer is fully liable — retroactively, with penalty interest.
Day-1 BLI enrollment gap — occupational accident liability
Any gap between an employee’s first working day and their BLI enrollment date is an uninsured window. If an occupational accident or injury occurs during that gap, the employer bears the full cost of compensation that would otherwise be covered by the Labor Insurance scheme.
Supplementary NHI on bonus income missed
Year-end bonuses, commissions, and irregular incentive payments exceeding 4× the employee’s monthly NHI insured salary in a year trigger a 2.11% supplementary premium. Employers who omit withholding face retroactive NHIA assessments plus administrative fines.
Worker misclassification — contractor vs. employee
Taiwan’s Ministry of Labor assesses employment status on substance, not contract label. Workers under employer direction and control are deemed employees regardless of contractor agreements. Retroactive back-contributions for LI, NHI, employment insurance, and labor pension — plus severance entitlements — apply from Day 1 of the relationship.
The three types of providers who struggle with Taiwan
Global Aggregator Platforms
Aggregator platforms cannot model Taiwan’s BLI grade-table logic, the 183-day residency withholding switch, supplementary NHI on irregular income, or the four-fund enrollment sequencing — they pass through to local partners with no direct Bureau of Labor Insurance integration.
- ×No direct BLI grade-table integration
- ×Residency-status withholding switch absent
- ×Supplementary NHI on bonuses not tracked
Large Global Payroll Incumbents
Incumbents have Taiwan coverage — in name. Legacy systems cannot adapt quickly when BLI grade tables are revised in January, NHI insured salary caps change, or the supplementary premium threshold shifts mid-year.
- ×BLI grade-table updates require manual intervention
- ×Supplementary NHI threshold logic hardcoded
- ×No Labor Pension individual-account reconciliation
Local Taiwan Accounting Firms
Local firms know the market — but they can’t scale with you. No HRIS integration, no multi-country APAC consolidation, no English-language executive reporting.
- ×No proprietary payroll technology
- ×No enterprise-grade data security certifications
- ×No APAC multi-country consolidation capability
The only provider that closes every gap
Mercans is the only Taiwan payroll provider that combines a proprietary payroll technology stack, full-time in-country compliance teams, direct Bureau of Labor Insurance and NHIA relationships, and enterprise-grade data security — simultaneously, on one contract, with no intermediaries.
The only engine built for Taiwan’s four-pillar contribution architecture
G2N Nova™ natively models Taiwan’s Labor Insurance grade tables, NHI 5.17% with 60/30/10 split, supplementary 2.11% premium tracking on irregular income, Labor Pension 6% individual-account remittance, and progressive income tax withholding with automatic 183-day residency threshold switching.
Full-time Taiwan team — not a partner you phone when things break
Mercans employs full-time payroll and compliance professionals in Taiwan with active relationships with the Bureau of Labor Insurance, NHIA, and the National Taxation Bureau. When BLI grade tables or NHI caps are revised, our engine is updated before the effective date.
The security posture multinationals require — and Taiwan’s Personal Data Protection Act mandates
Mercans holds Binding Corporate Rules approval, ISO 27701, SOC 1 & 2, and ISO 27017/27018 — the only payroll provider in APAC with this complete certification stack. Full PDPA processor agreements ship as standard for every Taiwan engagement.
Where Mercans wins on every Taiwan-specific capability
Each row is a Taiwan-specific payroll capability. Full = native in-platform, half = partial/manual workaround, empty = gap.
Taiwan Capability Coverage · 12 dimensions
Annual January revision applied
Non-res 18% → resident 5–40%
2.11% on irregular income threshold
6% BLI monthly remittance
1.56 avg dependant loading
0.06–0.93% industry-specific
3 days → 30 days by service year
Pre-2005 / post-2005 contract split
MOF / NTB electronic filing
Employee income & 2nd NHI annual statement
Every rate. Every cap. Every obligation.
Taiwan payroll operates on four independent contribution systems with separate salary ceilings, grade tables, and sharing ratios. Mercans builds every figure below into G2N Nova™ and monitors them proactively.
Taiwan · Rate & Compliance Dashboard
Live 2025–26BLI Grade Tables — Not a Simple Percentage of Actual Salary
Labor Insurance, Employment Insurance, and Occupational Accident Insurance are all calculated on the employee’s assigned salary grade from the BLI table — not directly on actual salary. Grades are revised each January when the minimum wage changes. Employers must re-grade all employees at the start of each year. G2N Nova™ applies the updated table automatically.
→ BLI grade-table auto-update · January effective dateNHI Premium Split and Supplementary Logic
The base NHI premium of 5.17% of insured salary (capped TWD 150,000/month) is split 60% employer, 30% employee, 10% government. On top of this, irregular income — bonuses, commissions, profit-sharing — is subject to a 2.11% supplementary premium if cumulative annual payments exceed four times the employee’s monthly insured salary. Employers withhold and remit. Omitting supplementary NHI is the most common NHIA audit finding.
→ Supplementary NHI threshold tracking in G2N Nova™Labor Pension Individual Account — Vested Immediately
Under the 2005 Labor Pension Act, employer contributions of at least 6% of pensionable salary flow into the employee’s individual BLI account every month. The account is portable and vests from Day 1. Employees may also make voluntary additional contributions. Employer contributions are tax-deductible. Late or missed remittances trigger fines of TWD 90,000–450,000 per violation.
→ Individual-account pension remittance with BLI reconciliationForeign Workers — Work Permit, Residency, and APRC Rules
Foreign professionals require an Employment Gold Card or work permit before commencing employment. The Employment Gold Card (for high-skilled talent) combines work permit, residence permit, and ARC in one document. White-collar hires must meet minimum salary thresholds. After 5 continuous years of residence, APRC (Alien Permanent Resident Certificate) may be obtained. All standard LI, NHI, pension, and income tax obligations apply to permit holders.
→ Work permit lifecycle and APRC renewal management in HR Blizz™Run a Taiwan payroll. Right here, right now.
Switch employee type. Move the salary slider. Every number reflects BLI grade-table contributions, NHI premium with dependant factor, Labor Pension 6%, and income tax withholding — resident or non-resident — the same logic G2N Nova™ runs in production.
Taiwan Payroll Sample · Live
G2N Nova™ engineWhat only Taiwan experts know to handle
These are the compliance details that don’t appear in standard payroll setup guides — but appear in every BLI audit, NHIA assessment, and Ministry of Labor inspection we’ve handled in Taiwan.
Withholding Rate Flips at 183-Day Residency Threshold
Foreign nationals present in Taiwan for fewer than 183 days in a calendar year are non-residents subject to 18% flat withholding (or 6% for salary below 1.5× the monthly baseline salary). After the 183-day mark, progressive resident rates (5–40%) apply. Mid-year status changes require retroactive recalculation.
BLI Grade Tables Reset Every January — Not a Simple Flat Rate
Labor Insurance and Labor Pension contributions are calculated on the employee’s insured salary grade from the Bureau of Labor Insurance’s official table, not on actual salary. The table has multiple brackets from the minimum wage floor (TWD 29,500 in 2026) to the LI ceiling of TWD 45,800. The table is revised annually.
Supplementary NHI 2.11% on Irregular Income Is Routinely Missed
Year-end bonuses, commissions, and one-off incentives that — in aggregate over a calendar year — exceed four times the employee’s monthly NHI insured salary trigger a 2.11% supplementary premium. Employers must withhold and remit on each qualifying payment. Omission results in NHIA back-assessment plus fines.
Labor Pension 6% Goes to Individual Account — Not a Pooled Fund
Under the Labor Pension Act (2005 onwards), employers must contribute at least 6% of each employee’s monthly pension wage to that individual’s BLI personal account. Contributions are vested immediately and portable. Failure to remit monthly triggers fines of TWD 90,000–450,000 plus interest.
Occupational Accident Insurance Enrollment Must Precede Day 1
Employers must enroll workers in BLI occupational accident insurance before the first day of work. Any gap creates a window of direct employer liability for work-related injuries or illness. Industry-specific rates range from 0.06% to 0.93% — the correct rate depends on the insured unit’s registered business category.
NHI Employer Cost Includes Dependant Loading
Employers pay NHI not just for the employee but for their registered dependants at the average dependant factor of 1.56. This means the employer’s effective NHI cost is approximately 4.84% of insured salary, not 3.10% (60% of 5.17%). Failing to model dependant loading understates employer costs.
Severance Calculation Depends on Contract Start Date
Employees hired before July 1, 2005 (old Labour Standards Act regime) receive 1 month’s average salary per year of service. Post-2005 employees under the Labor Pension Act receive 0.5 months per year, capped at 6 months. Mixing regimes triggers errors. Redundancy and retirement entitlements differ.
Annual Leave Entitlement Scales with Tenure — Carry-Over Has Rules
Taiwan’s Labor Standards Act provides escalating leave: 3 days at 6 months, 7 days after 1 year, 10 days after 2 years, 14 days after 3 years, 15 days after 5 years, and up to 30 days after 10 years (1 additional day per year). Unused leave must be paid out at the end of the leave year — it cannot simply be forfeited.
One workforce. Two entirely different compliance tracks.
Local Taiwanese employees on the full four-pillar insurance regime vs. foreign professionals subject to residency-gated withholding and Employment Gold Card rules require two distinct compliance frameworks, two sets of contribution obligations, and different statutory entitlement structures.
Parallel Compliance Engines
Four-pillar contributions from Day 1. Labor Insurance (LI), Employment Insurance (EI), National Health Insurance (NHI), and Labor Pension — each with separate grade tables, ceilings, and sharing ratios — apply on every payroll run.
Progressive income tax on 5 brackets. From 5% on first TWD 590,000 of taxable income to 40% above TWD 4,980,000. Standard deduction TWD 136,000 (single) plus personal exemption TWD 101,000 per person.
Labor Pension individual account vests immediately. Employer must remit at least 6% of pensionable salary to the employee’s BLI account every month. Late remittance triggers fines of TWD 90,000–450,000.
Supplementary NHI on year-end bonuses. Irregular income — annual bonus, profit share, commission — triggers 2.11% supplementary NHI when cumulative bonus exceeds 4× the employee’s monthly insured salary.
Annual leave accrues by tenure, unused leave is paid out. Tenure-based leave scales from 3 days at 6 months to up to 30 days after 10 years. Forfeiture of unused leave is prohibited — it must be paid out at the end of the leave year.
18% flat withholding applies until 183-day residency threshold. Resident progressive rates (5–40%) replace flat withholding once 183 days are reached within the calendar year. Mid-year status changes require retroactive recalculation.
Employer is liable if non-resident departs without paying tax. If a foreign worker leaves Taiwan before the tax authority can collect, the employer — as withholding agent — is held liable for all unpaid income tax. Recommend withholding 18% for all foreigners in first 6 months.
Employment Gold Card combines work permit, ARC, and open-work rights. High-skilled foreign professionals earning above the eligible threshold may apply for an Employment Gold Card, valid for 1–3 years. All standard LI, NHI, and pension contributions apply.
BLI and NHI enrollment obligations apply identically to foreigners. Work permit holders are subject to the same Labor Insurance, NHI, and Labor Pension contribution requirements as local employees from their first working day.
Every obligation. Every authority. Mercans owns the calendar.
Taiwan compliance runs across the Bureau of Labor Insurance, NHIA, Ministry of Finance, and Ministry of Labor on monthly, annual, and event-triggered cadences. Mercans’ managed payroll absorbs every filing as standard scope.
Income Tax Withholding (WHT) Remittance
Monthly income tax withheld from employee salaries must be remitted to the National Taxation Bureau (MOF) by the 10th of the following month. Resident progressive rates or 18% non-resident flat rate applies. Withholding agents face penalty interest on late remittances.
BLI Premium Remittance (LI + EI + Pension)
Labor Insurance, Employment Insurance, and Labor Pension contributions are remitted to the Bureau of Labor Insurance by the 15th of the second month following the payroll month. Employer LI ~8.05%, employee LI ~2.30%, employer Labor Pension 6% of pensionable salary.
NHI Premium + Supplementary NHI Remittance
Standard NHI premiums (5.17% split 60/30/10) and any supplementary 2.11% premiums on irregular income are remitted to the NHIA by the same 15th-of-second-month deadline as BLI. Employers who miss supplementary NHI on year-end bonuses face retrospective NHIA assessments.
Annual Income Reporting to MOF
By January 31, employers must report each employee’s total annual income (salary, bonuses, stock compensation, non-cash benefits) to the National Taxation Bureau via the e-filing portal. Annual withholding statements are issued to employees simultaneously for their individual tax filing.
2nd-Generation NHI Annual Declaration
Employers must also file the annual supplementary NHI declaration with the NHIA by January 31, reconciling all supplementary premium withholdings on irregular income paid during the preceding calendar year.
BLI Grade Table Re-grading
When the minimum wage changes (effective January 1 each year), BLI issues a revised Table of Grades of Insurance Salary. All employees at or near affected grades must be re-graded before the first payroll run of the year. Failure to apply the updated table means incorrect LI, EI, and pension contributions.
Individual Income Tax Filing Season
Taiwan’s annual individual income tax filing runs May 1–June 2 each year. Employers must have submitted annual income reports by January 31. Employees with salary income only may use the pre-filled NTB e-filing. Employers manage this process for expatriates on employer-paid tax programmes.
BLI Enrollment + NHI Registration
New employees must be enrolled in BLI (Labor Insurance, Employment Insurance, and Occupational Accident Insurance) and registered with NHIA before their first working day. Any gap between the actual start date and enrollment date creates an uninsured window with direct employer liability for occupational incidents. Work permit holders must present valid permit before enrollment.
Taiwan is one market.
Mercans covers all of APAC.
Mercans covers all major Asia-Pacific markets on a single platform with country-specific compliance engines running in parallel. One platform. One contract. One consolidated APAC view.
covered
1 contract
consolidation
APAC
Every filing. Every format. Submission-ready.
Mercans generates the exact file types that the Bureau of Labor Insurance, NHIA, Ministry of Finance, and Ministry of Labor expect to receive.
