Request the 2026 Certificate of Tax Residency for Microsoft Ireland Operations Limited through Microsoft 365 business billing support, because the current certificate is distributed through a secure support channel rather than the public tax-form catalog.
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 Microsoft Ireland Operations Limited Certificate of Tax Residency for tax year 2026
- If the suggested results do not resolve the request, select Contact Support (the headset icon).
- Choose Email or Phone, confirm the contact information, and select Contact me. These are the documented Microsoft 365 business support steps.^1^
Include the following in the case:
- Customer organization and billing country/region
- Microsoft invoice or subscription details identifying Microsoft Ireland Operations Limited as the relevant entity
- Requested tax year: 2026
- The tax authority or treaty purpose, if applicable
- Request for the certificate as an official PDF issued by the Irish tax authority
Recent matching requests confirm that the 2026 MIOL certificate is being provided privately rather than posted publicly.^2^
Access requirements
- The support request must be opened by an administrator of the business subscription.
- At least one subscription must have been purchased directly from Microsoft to use Microsoft 365 support.
- If all subscriptions were purchased through a Microsoft partner, request the certificate from that partner instead.^1^
Do not post invoices, tenant identifiers, tax identifiers, or other confidential business information in this public Q&A thread.
If this is a CSP/Partner Center purchase
Submit a tax-related support request through Partner Center instead. Microsoft documents Certificates of Tax Residency as supplier tax forms, but its public catalog currently lists MIOL certificates only through 2024, not the 2026 certificate.^3^
References
- Get support for Microsoft 365 for business
- Request for 2026 Tax Residency Certificate – Microsoft Ireland Operations Limited (Kazakhstan) - Microsoft Q&A
- Understand taxes and credits