Tonga Personal Tax Guide: Progressive PIT 10-20% 2026
Tonga applies a progressive personal income tax (PIT) system with two brackets: 10% on income up to TOP 30,000 and 20% on income above TOP 30,000. Residents are taxed on worldwide income. Non-residents are taxed on Tongan-source income only. Expatriates may benefit from a remittance-based regime. Here is how Tongan personal tax works in 2026.
Personal Income Tax in Tonga is governed by the Income Tax Act 2007 and administered by Tonga Revenue & Customs (TRC). The tax year is the calendar year. Residents are taxed on worldwide income, while non-residents are taxed only on Tongan-source income. Tonga's progressive system has a relatively low top rate of 20%, making it competitive in the Pacific region. Check residency rules →
Real-world example: An employee earning TOP 50,000 per year pays 10% on the first TOP 30,000 = TOP 3,000, and 20% on the remaining TOP 20,000 = TOP 4,000. Total PIT: TOP 7,000. Effective tax rate: 14%. For an expatriate under the remittance-based regime who earns TOP 80,000 but only remits TOP 40,000 to Tonga, tax is calculated only on the remitted amount at progressive rates. No social security contributions →
Personal Income Tax Rates 2026
- 10% — Annual income up to TOP 30,000
- 20% — Annual income above TOP 30,000
The rates apply to employment income, business income for individuals, and other personal income. There is no separate surtax or solidarity contribution. Tonga does not have a joint filing system for married couples — each individual files separately.
Taxable Income Categories
Tongan PIT applies to several categories of income:
- Employment income: Salaries, wages, bonuses, allowances, benefits-in-kind — all subject to progressive PIT via payroll withholding
- Business income: Self-employed individuals and sole proprietors are taxed at progressive PIT rates
- Rental income: Income from property leasing is taxed at progressive PIT rates after allowable deductions
- Investment income: Dividends (0% WHT), interest (15% WHT), and royalties (10-15% WHT) have separate rates
- Capital gains: No separate CGT — some gains may be taxed as ordinary income
Employment income is subject to monthly withholding by the employer. The employer deducts PIT before paying the net salary. Annual filing requirements →
Tax Credits and Deductions
Tonga offers limited tax credits and deductions for individuals:
- Personal allowance: The TOP 30,000 threshold serves as the primary personal allowance
- Business expenses: Self-employed individuals may deduct legitimate business expenses
- Charitable donations: Donations to registered non-profits may be deductible up to a percentage of income
Tax deductions generally require documented expenses and are subject to TRC guidelines.
Expatriate and Remittance-Based Regime
Tonga offers a remittance-based taxation regime for expatriates and non-domiciled individuals. Under this regime:
- Foreign-source income is taxed only when remitted to Tonga
- Income earned and kept outside Tonga is not subject to PIT
- This makes Tonga attractive for expatriate workers and retirees with foreign pensions
The remittance basis must be claimed and may require specific application to the TRC.
Who must file a Tongan personal tax return?
Individuals with employment income only (where tax was fully withheld at source) generally do not need to file. Self-employed individuals, those with multiple income sources, or those earning above certain thresholds must file an annual return by March 31. Non-residents with Tongan-source income must also file.
Are bonuses and overtime taxed?
Yes, bonuses, commissions, and overtime payments are treated as ordinary employment income and taxed at the progressive PIT rates. There is no special treatment for these payments. Employers include all cash and non-cash benefits in the payroll calculation.
Is there a wealth tax or net worth tax in Tonga?
No. Tonga does not impose a wealth tax, net worth tax, or solidarity tax on individuals. See the wealth tax guide for details. Wealth tax guide →