Istanbul rate history — COLA (Post Allowance) (%). Query any past effective date directly via the API.
| Effective date | COLA (Post Allowance) (%) |
|---|---|
| Jul 12, 2026 | 0% |
| Feb 8, 2026 | 0% |
| Mar 9, 2025 | 5% |
| Oct 11, 2020 | 0% |
| Jan 12, 2014 | 10% |
The same location's rates under other U.S. travel-rate systems:
The post (cost-of-living) allowance offsets higher overseas costs of goods and services for U.S. government civilian employees assigned to Istanbul. It is expressed as a percentage of spendable income and is used by mobility, HR and payroll teams to compute overseas compensation.
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/TR?type=cola"{
"effective_date": "2026-07-12",
"results": [
{
"cola": {
"effective_date": "2026-07-12",
"rate": 0
},
"iso_code": "TR",
"location": "Istanbul",
"postcode": "10213"
}
],
"verification_url": "https://aoprals.state.gov/content.asp?content_id=184\u0026menu_id=78"
}The current DSSR COLA (Post Allowance) rate for Istanbul, Turkey is 0%, effective Jul 12, 2026.
In Feb 8, 2026 the COLA (Post Allowance) rate was 0%. The full history is shown in the table above and is queryable by effective date via the API.
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.