DSSR · Cost of Living Allowance (COLA)

Tonga - Other, Tonga COLA (Post Allowance) Rate (DSSR)

Effective date: July 12, 2026 Last updated: July 12, 2026
Cost of Living Allowance (COLA)
30%
% of spendable income

Historical rate trend

Tonga - Other rate history — COLA (Post Allowance) (%). Query any past effective date directly via the API.

Effective date COLA (Post Allowance) (%)
Jul 12, 2026 30%
May 17, 2026 35%
Apr 19, 2026 30%
Feb 22, 2026 35%
Feb 8, 2026 30%
May 4, 2025 60%
Apr 20, 2025 50%
Oct 20, 2024 60%
Mar 10, 2024 35%
Jan 14, 2024 10%
Dec 31, 2023 15%
Nov 19, 2023 10%
Mar 12, 2023 15%
Jan 12, 2014 0%
Page of · 14 rows

How this rate is used

The post (cost-of-living) allowance offsets higher overseas costs of goods and services for U.S. government civilian employees assigned to Tonga - Other. It is expressed as a percentage of spendable income and is used by mobility, HR and payroll teams to compute overseas compensation.

Get this data from the API

The exact request that returns this page's data. Change the date parameter to query any historical effective date, or pull it straight into your ERP, payroll, or expense system.

curl -H "X-API-Key: YOUR_KEY" \
  "https://api.allowancesapi.com/v1/dssr/allowances/TO?type=cola"
Sample response
{
  "effective_date": "2026-07-12",
  "results": [
    {
      "cola": {
        "effective_date": "2026-07-12",
        "rate": 30
      },
      "iso_code": "TO",
      "location": "Tonga - Other",
      "postcode": "11883"
    }
  ],
  "verification_url": "https://aoprals.state.gov/content.asp?content_id=184\u0026menu_id=78"
}

Tonga - Other rate FAQ

What is the COLA (Post Allowance) rate for Tonga - Other, Tonga?

The current DSSR COLA (Post Allowance) rate for Tonga - Other, Tonga is 30%, effective Jul 12, 2026.

How has the Tonga - Other COLA (Post Allowance) rate changed?

In May 17, 2026 the COLA (Post Allowance) rate was 35%. The full history is shown in the table above and is queryable by effective date via the API.

Source & methodology

Effective period
Effective Jul 12, 2026
Last updated
July 12, 2026

Allowances API is not affiliated with, endorsed by, or sponsored by any U.S. Government agency. All rate data is sourced from official public rate tables and re-published in a normalized format.