This is a high-priority notice for U.S. Tax paying staff members of the United Nations.
Effective October 18, 2025, the IRS will no longer accept or issue paper checks. To ensure continued processing of your estimated and final tax payments, you must enroll in the Electronic Federal Tax Payment System (EFTPS) by October 17, 2025.
Please click here to view the Calculation of Taxable portion of Lump sum pension
Copies of tax returns and related United Nations forms must be received by the Income Tax Unit of the HQCSS/Department of Operational Support by the above dates.
We are happy to announce the launch of our new course: United Nations Tax Procedure for US Taxpayers on the CDOTS campus.
Self-Employment Tax contains Social Security Tax and Medicare Tax. Employee’s portion of Social Security Tax for 2023 was 6.2%. The maximum wages and earnings subject to social security tax is $ 168,600 for 2024 and it increases to $ 176,100 for 2025.
To ease the process of setting up meetings with a member of the Income Tax Unit, we are excited to launch Virtual Tax Meet, a self-service scheduling tool. Virtual Tax Meet will allow you to schedule a virtual 20-minute conversation with a member of our team. When scheduling a meeting for “All Other Topics”, please schedule with the Tax Unit Specialist associated with the first letter of your last name:
- A, E, G N: Rekha
Haven't Received Your Advance Payment of the Child Tax Credit Issued to You Yet?
There’s limited time to have the IRS trace a missing Advance Child Tax Credit payment.
Form 3911 submission to IRS
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Events |
US Based Staff |
Overseas Staff |
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Q4 Advance of 2024 |
15 January 2025 |
15 January 2025 |
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Statement of Taxable Earnings (STE, equivalent to W2 or 1099) Will be distributed to all staff by email. |
31 January 2025 |
31 January 2025 |
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ST/IC/2025/? (instruction/rules and procedure) will be posted in UN Forms |
31 January 2025 |
31 January 2025 |
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UN Forms for 2024 (F.65, F.65A and IRS 4506C) will be uploaded in UN Forms and available for use. |
31 January 2025 |
31 January 2025 |
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Income Tax Briefing (VIRTUAL) |
6 February 2025 (Virtual) At 9:30 AM EST |
6 February 2025 (Virtual) At 9:30 AM EST |
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UN Tax portal is open to use |
7 February 2025 |
7 February 2025 |
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2024 Tax Claim submission Deadline (to UN Income Tax Unit) |
3 March 2025 |
1 April 2025 |
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2024 Tax filing Deadline to IRS |
15 April 2025 |
16 June 2025 |
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2024 Tax Settlement Payment Deadline to IRS |
15 April 2025 |
15 April 2025 |
