Greenham Common rate history — Allowance rate (%). Query any past effective date directly via the API.
| Effective date | COLA (post allowance) | Hardship differential | Danger pay |
|---|---|---|---|
| Jul 12, 2026 | 42% | 0% | 0% |
| Dec 28, 2025 | 42% | 0% | 0% |
| Nov 30, 2025 | 35% | 0% | 0% |
| Jun 1, 2025 | 42% | 0% | 0% |
| May 4, 2025 | 35% | 0% | 0% |
| Apr 20, 2025 | 30% | 0% | 0% |
| Mar 23, 2025 | 35% | 0% | 0% |
| Feb 9, 2025 | 30% | 0% | 0% |
| Jan 26, 2025 | 25% | 0% | 0% |
| Dec 1, 2024 | 30% | 0% | 0% |
| Oct 20, 2024 | 35% | 0% | 0% |
| Jul 28, 2024 | 30% | 0% | 0% |
| Apr 7, 2024 | 25% | 0% | 0% |
| Mar 24, 2024 | 30% | 0% | 0% |
| Nov 19, 2023 | 25% | 0% | 0% |
| Oct 8, 2023 | 20% | 0% | 0% |
| Aug 27, 2023 | 25% | 0% | 0% |
| Jul 30, 2023 | 30% | 0% | 0% |
| Jul 16, 2023 | 25% | 0% | 0% |
| Jul 2, 2023 | 30% | 0% | 0% |
| Apr 9, 2023 | 25% | 0% | 0% |
| Feb 26, 2023 | 20% | 0% | 0% |
| Jan 29, 2023 | 25% | 0% | 0% |
| Jan 1, 2023 | 20% | 0% | 0% |
| Dec 18, 2022 | 25% | 0% | 0% |
| Dec 4, 2022 | 20% | 0% | 0% |
| Oct 23, 2022 | 15% | 0% | 0% |
| Oct 9, 2022 | 10% | 0% | 0% |
| Sep 25, 2022 | 15% | 0% | 0% |
| Jul 17, 2022 | 20% | 0% | 0% |
| May 8, 2022 | 25% | 0% | 0% |
| Mar 13, 2022 | 30% | 0% | 0% |
| Jan 16, 2022 | 35% | 0% | 0% |
| Dec 19, 2021 | 30% | 0% | 0% |
| Oct 10, 2021 | 35% | 0% | 0% |
| Jun 20, 2021 | 15% | 0% | 0% |
| Jun 6, 2021 | 20% | 0% | 0% |
| Jan 31, 2021 | 15% | 0% | 0% |
| Oct 11, 2020 | 10% | 0% | 0% |
| Aug 16, 2020 | 20% | 0% | 0% |
| Apr 12, 2020 | 15% | 0% | 0% |
| Mar 29, 2020 | 10% | 0% | 0% |
| Mar 15, 2020 | 15% | 0% | 0% |
| Dec 8, 2019 | 20% | 0% | 0% |
| Nov 24, 2019 | 15% | 0% | 0% |
| Nov 10, 2019 | 20% | 0% | 0% |
| Sep 29, 2019 | 15% | 0% | 0% |
| Sep 1, 2019 | 10% | 0% | 0% |
| Jun 9, 2019 | 15% | 0% | 0% |
| Feb 3, 2019 | 20% | 0% | 0% |
| Dec 9, 2018 | 15% | 0% | 0% |
| Nov 25, 2018 | 20% | 0% | 0% |
| Nov 11, 2018 | 15% | 0% | 0% |
| Sep 16, 2018 | 20% | 0% | 0% |
| Sep 2, 2018 | 15% | 0% | 0% |
| May 27, 2018 | 20% | 0% | 0% |
| May 13, 2018 | 25% | 0% | 0% |
| Apr 29, 2018 | 30% | 0% | 0% |
| Feb 4, 2018 | 25% | 0% | 0% |
| Sep 17, 2017 | 20% | 0% | 0% |
| Sep 3, 2017 | 15% | 0% | 0% |
| Aug 20, 2017 | 20% | 0% | 0% |
| Aug 6, 2017 | 15% | 0% | 0% |
| Jun 11, 2017 | 10% | 0% | 0% |
| May 28, 2017 | 15% | 0% | 0% |
| Oct 16, 2016 | 10% | 0% | 0% |
| Jul 10, 2016 | 15% | 0% | 0% |
| Jun 26, 2016 | 20% | 0% | 0% |
| May 15, 2016 | 25% | 0% | 0% |
| Mar 6, 2016 | 20% | 0% | 0% |
| Feb 21, 2016 | 25% | 0% | 0% |
| Feb 7, 2016 | 20% | 0% | 0% |
| Dec 13, 2015 | 25% | 0% | 0% |
| May 17, 2015 | 30% | 0% | 0% |
| Mar 22, 2015 | 25% | 0% | 0% |
| Mar 8, 2015 | 30% | 0% | 0% |
| Jan 25, 2015 | 25% | 0% | 0% |
| Nov 16, 2014 | 30% | 0% | 0% |
| Aug 24, 2014 | 35% | 0% | 0% |
| Feb 9, 2014 | 30% | 0% | 0% |
| Jan 26, 2014 | 25% | 0% | 0% |
| Jan 12, 2014 | 30% | 0% | 0% |
The same location's rates under other U.S. travel-rate systems:
These three DSSR allowances compensate U.S. government civilian employees assigned to Greenham Common. The post (cost-of-living) allowance offsets higher overseas costs of goods and services; the hardship differential pays for service where conditions are notably more difficult than in the continental U.S.; and danger pay applies during periods of civil insurrection, terrorism or war. COLA is a percentage of spendable income, while hardship and danger pay are percentages of basic pay -- mobility, HR and payroll teams combine them to compute total 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/GB"{
"effective_date": "2026-07-12",
"results": [
{
"cola": {
"effective_date": "2026-07-12",
"rate": 42
},
"danger_pay": {
"effective_date": null,
"rate": null
},
"hardship": {
"effective_date": "2026-07-12",
"rate": 0
},
"iso_code": "GB",
"location": "Greenham Common",
"postcode": "11565"
}
],
"verification_url": "https://aoprals.state.gov/content.asp?content_id=184\u0026menu_id=78"
}As of Jul 12, 2026, the DSSR allowances for Greenham Common, United Kingdom are: COLA (post allowance) 42%, hardship differential 0%, and danger pay 0%. Each is shown with its full history in the chart and table above.
COLA (the post allowance) offsets higher local costs of goods and services and is a percentage of spendable income. The hardship differential compensates for difficult living conditions, and danger pay for civil unrest, terrorism or war conditions -- both are percentages of basic pay.
The chart and table above show every change in COLA, hardship and danger pay for Greenham Common back to Jan 12, 2014, and each 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.