SB · OceaniaTO · Oceania
Solomon Islands vs Tonga: tax rates compared
Solomon Islands's income tax rate is 15pp higher than Tonga's (40% vs 25%). The 200-country average is 28%: Solomon Islands sits above it, Tonga sits below it. Solomon Islands's figure is dated 2026-05-18 and Tonga's 2021-07-01, so the two rates come from different data vintages.
Verified data covers three of the six tracked tax types for both countries; every rate below is cited to its source and dated.
At a glance
| Tax | SB | TO | Difference |
|---|---|---|---|
| Income Tax | 40% | 25% | SB +15 pplargest gap |
| Corporate Tax | 30% | 25% | SB +5 pp |
| Wealth Tax | 0% | 0% | match |
Income Tax
| Country | Rate | Source |
|---|---|---|
| Solomon Islands | 40% | Source: Solomon Islands Inland Revenue Division — Income Tax · as of 2026-05-18 |
| Tonga | 25% | Source: Ministry of Revenue & Customs, Government of Tonga — Individual Employee · as of 2021-07-01 |
| Difference | +15 pp | Solomon Islands higher |
Corporate Tax
| Country | Rate | Source |
|---|---|---|
| Solomon Islands | 30% | Source: Tax Foundation — Worldwide Corporate Tax Rates · as of 2025-01-01 |
| Tonga | 25% | Source: Tax Foundation — Worldwide Corporate Tax Rates · as of 2025-01-01 |
| Difference | +5 pp | Solomon Islands higher |
Solomon Islands's corporate tax rate is 5pp higher than Tonga's (30% vs 25%). The 201-country average is 22.6%: both sit above it.
Wealth Tax
| Country | Rate | Source |
|---|---|---|
| Solomon Islands | 0% | Source: Solomon Islands Inland Revenue Division · as of 2026-07-18 |
| Tonga | 0% | Source: Tonga Ministry of Revenue & Customs — Tax Legislations (official index) · as of 2026-07-18 |
| Difference | 0 pp | displayed rates match |
Solomon Islands's wealth tax rate is identical to Tonga's — both sit at 0%. The 193-country average is 0.1%: both sit below it.
Not covered for both countries yet: VAT, Capital Gains Tax, Crypto Tax.