Request the 2026 Tax Residency Certificate through Microsoft 365 business billing support; Microsoft distributes this document privately rather than attaching it publicly to a Q&A post.^1^
Submit the request
A Microsoft 365 administrator should:
- Sign in to the Microsoft 365 admin center.
- Select Help & support at the bottom-right.
- Enter:
Request for the 2026 Certificate of Tax Residence for Microsoft Ireland Operations Limited (MIOL), required for Serbian withholding-tax and double-taxation-treaty purposes. Please provide the certificate electronically in PDF format.
- If the suggested results do not resolve the request, select the Contact Support headset icon.
- Choose email or phone, confirm the contact details, and submit the case.^2^
The requester must be an administrator of a business subscription purchased directly from Microsoft. If all subscriptions were purchased through a Microsoft partner, request the certificate through that partner instead.^2^
Include the following in the ticket:
- Legal entity: Microsoft Ireland Operations Limited
- Tax year: 2026
- Destination country: Serbia
- Purpose: Serbian withholding-tax compliance and application of the relevant double-taxation treaty
- Requested format: PDF
- Relevant invoice or subscription details, without posting confidential account information publicly
Equivalent 2026 Serbia requests have been fulfilled through a private message containing the requested document.^3^ Check the private-message banner on this Q&A thread as well, but use the billing support request above if no private response appears.
References
- 2026 Tax Residency Certificate for Microsoft Ireland Operations Limited - Microsoft Q&A
- Get support for Microsoft 365 for business
- request a Certification of Tax Residence for the Tax Year 2026 - Microsoft Q&A