The short answer
How UK individuals, companies and agents apply online for a Certificate of Residence or Letter of Confirmation, including treaty, evidence and timing boundaries.
HMRC has moved applications for a UK Certificate of Residence or Letter of Confirmation to an online application form. The change affects individuals, sole traders, companies, partnerships, trusts, charities, pension schemes, public bodies and authorised agents applying for residence evidence.
The document you need depends on why the overseas authority is asking for proof. A Certificate of Residence is normally used to claim benefits under a named UK double taxation agreement. A Letter of Confirmation is used for another accepted tax-residence confirmation purpose, such as a foreign authority that needs confirmation of UK residence but is not applying a specific treaty claim.
Submitting the online form does not itself establish UK residence or guarantee relief from foreign tax. HMRC checks the facts and the relevant treaty or purpose before issuing the appropriate document.
Applications are now online
Choose the right document
You cannot request a future period
Certificate of Residence or Letter of Confirmation?
| What the overseas authority needs | Usually relevant document |
|---|---|
| Relief under a named UK double taxation agreement | Certificate of Residence, subject to UK residence and treaty conditions. |
| Confirmation of UK tax residence for another accepted tax purpose | Letter of Confirmation may be appropriate. |
| Proof that you live in the UK for a non-tax administrative purpose | HMRC may not issue either document; ask the overseas authority what evidence it accepts. |
| A document for a future period | HMRC does not certify future residence through this process. |
Do not ask for a Certificate of Residence merely because the phrase “tax residence certificate” appears in an overseas checklist. Identify the country, income, period and legal basis first. The foreign tax authority decides whether the document is sufficient for its own relief or filing process.
Who can use the online service?
HMRC’s guidance lists individuals and sole traders, companies, partnerships, trusts, charities, public bodies, pension schemes and collective investment schemes or unit trusts. An authorised agent can apply on behalf of a client using the relevant agent-services sign-in.
An applicant may sign in using the relevant account details or an email address and confirmation code. The service can save progress and allow the applicant to return later. The exact identity and authority checks depend on the applicant type and the information provided.
What information is needed?
For a treaty-based Certificate of Residence request, prepare:
- the country for which the document is needed;
- the specific double taxation agreement being relied on;
- the type of foreign income involved;
- the period for which the document is required;
- confirmation of beneficial ownership where the treaty requires it; and
- confirmation that the relevant income is subject to UK tax where required by the treaty.
If an individual has not yet filed the relevant Self Assessment return, HMRC may ask for UK day counts, the Statutory Residence Test basis where fewer than 183 days were spent in the UK, arrival and departure dates and any split-year information.
If a newly incorporated company has not yet filed a Corporation Tax return, the application may require the names and addresses of directors and shareholders and the reason the company considers itself UK tax resident. Keep board, management and residence evidence consistent with the application.
What if the other country provides its own form?
Some foreign authorities provide a form that HMRC must sign or certify. Upload or send that form and the supporting documents requested by the online service. Do not assume a generic HMRC document will satisfy a country-specific reclaim process.
The overseas authority may also ask for a particular income type, payment date, treaty article or period. Make the application match the actual claim rather than requesting an unnecessarily broad document.
What changed for agents?
Agents should use the sign-in details for their Agent Services Account when applying for a client. Confirm the client authority, legal identity, residence period, treaty, income type and evidence before submitting.
For bulk requests, such as several countries or entities, HMRC may ask the applicant to complete and upload a spreadsheet through the service. A bulk request still needs a reliable mapping between each entity, country, income type, period and requested document.
The online move changes the submission route; it does not remove the need to test UK residence, beneficial ownership, treaty entitlement or the client’s tax records. Keep a copy of the submitted information and confirmation for the client file.
Prepare an online residence application
- 1Ask the foreign authority why it needs proof and whether the request is for treaty relief or another tax-residence purpose.
- 2Choose Certificate of Residence or Letter of Confirmation based on that purpose, not only on the wording used by the requester.
- 3Identify the applicant, country, income type and exact historical or current period; do not request a future period.
- 4Gather treaty, residence, tax-return, beneficial-ownership, company and authority evidence relevant to the case.
- 5Sign in to the online service using the appropriate individual, organisation or Agent Services Account credentials.
- 6Save the submission confirmation and reconcile the document received with the overseas filing or reclaim deadline.
Common mistakes to avoid
- Requesting a Certificate of Residence when the other country needs a Letter of Confirmation for a non-treaty tax purpose.
- Treating the document as proof of residence for any future date.
- Leaving the income type or treaty unspecified when the overseas claim is specific.
- Applying for a company without checking the directors, shareholders, residence basis and Corporation Tax filing position.
- Asking an agent to apply without confirming the authorisation and Agent Services Account route.
- Assuming HMRC’s document automatically guarantees a refund or treaty relief in the other country.
- Using a residence certificate to prove ordinary UK address or immigration status when the request is not tax-related.
Match the application to the foreign claim
The strongest application starts with the overseas authority's request. Record the country, payer, income type, payment date, relevant treaty article or domestic reclaim route, tax withheld and the period for which relief is requested. If the foreign form asks HMRC to certify a particular payment or calendar year, do not submit a broad request that leaves the period or income type unclear. A certificate covering the wrong period may be genuine but unusable for the reclaim.
Beneficial ownership also needs a clear answer. A person who receives a payment may not be the beneficial owner where a nominee, trust, partnership, pension scheme or company is involved. The treaty may impose conditions beyond UK residence. Explain the ownership chain consistently across the CoR application, foreign reclaim, accounts and tax return. HMRC's document does not cure a mismatch in the overseas claim.
For individuals, assemble a residence timetable for the requested period. Include UK arrival and departure dates, homes, work pattern, family ties and any split-year position relevant to the Statutory Residence Test. Keep the calculation used in the application even if the requested document only states the conclusion. For a company, retain board-management evidence, central management facts, directors and shareholder details, trading activity and the Corporation Tax position. Do not create evidence after the fact to make a weak residence case appear complete.
After HMRC issues or questions the document
Check the document immediately. Confirm the legal name, UTR or reference, country, period, income or treaty purpose and any foreign form attached. If HMRC asks for more information, answer the specific question and keep the submission history. A delay can affect a foreign withholding reclaim even when the underlying UK residence position is unchanged, so record the overseas deadline and request an extension from the foreign authority where necessary.
If HMRC refuses or narrows the request, read the reason rather than submitting the same form repeatedly. The problem may be future dating, missing treaty information, uncertain beneficial ownership, incomplete residence evidence, an incorrect applicant type or a request that does not fit the CoR service. Correct the relevant fact or choose the appropriate Letter of Confirmation route. Where the disagreement concerns treaty interpretation or residence status, obtain specialist advice before making a contradictory foreign claim.
The document is evidence for a purpose and period, not a permanent status certificate. Keep the issued document, application, evidence and foreign filing together. If residence, ownership, payer, income or period changes, make a fresh assessment instead of copying an earlier certificate into a new claim.
Agents and internal controls
An agent should obtain written authority, identify the client and verify that the Agent Services Account is connected to the correct client record. For multiple countries or entities, use a schedule with one row per applicant, country, income type, period, treaty purpose and foreign deadline. A bulk upload can reduce repetition but does not remove the need to check each row.
The client should review the facts before submission, particularly residence, beneficial ownership and the period requested. Save the submitted answers and confirmation in the client file, not only the final PDF. When staff change, review access and outstanding applications. A certificate received by an agent should be reconciled to the client and foreign claim before it is sent onward.
For the wider cross-border tax position, see the existing UK foreign-income reporting guide and working abroad and double-taxation guide. Those pages address the tax analysis; this page focuses on obtaining HMRC residence evidence.
Frequently Asked Questions
Are Certificate of Residence applications now online?
What is a UK Certificate of Residence used for?
When should I request a Letter of Confirmation instead?
Can I request a Certificate of Residence for a future date?
Can an agent apply for a client?
What if I have not filed my Self Assessment return yet?
What does a new company need to provide?
Does a Certificate of Residence guarantee a foreign-tax refund?
Can I use the certificate as proof of my UK address?
What should I keep after applying?
This guide reflects HMRC’s online residence-application guidance and Agent Update 147 checked on 20 September 2026. Residence and treaty entitlement are fact-specific; check the current HMRC service and the foreign authority’s requirements before submitting a claim.
Official sources
- HMRC — Apply for a Certificate of Residence or Letter of Confirmation — online application route and document choice.
- HMRC — Agent Update 147: residence applications moving online — current agent and online-service update.
- HMRC International Manual — information for a Certificate of Residence request — treaty CoR information.
- HMRC International Manual — Letter of Confirmation — confirmation-letter context.
This guide is general educational information for UK residence-document applications in 2026/27. HMRC's service, the applicant's residence facts, treaty conditions, beneficial ownership and the foreign authority's process control the outcome. It is not a residence ruling, treaty opinion or tax advice.
Related Guides
UK Tax on US LLC Income 2026 — Reverse Hybrid Consultation
How UK resident individual members of US LLCs can face mismatched tax treatment, what HMRC's 2026 reverse-hybrid consultation proposes and what is not final.
UK Short-Term Business Visitors 2026/27 — PAYE, NIC and Treaty Relief
How UK employers should assess overseas short-term business visitors, including PAYE, National Insurance, treaty relief, Appendix 4 and Appendix 8 records.
Voluntary National Insurance Abroad 2026/27 — Class 2 and Class 3
UK voluntary National Insurance abroad from 6 April 2026: Class 2 removal, the new 10-year Class 3 test, transitional rules and CF83 applications.
Review notes and assumptions
Reviewed
2026-09-20
Assumptions
- This guide reflects HMRC’s online application guidance and Agent Update 147 checked on 20 September 2026.
- A Certificate of Residence confirms UK residence for a claim under a specified double taxation agreement; a Letter of Confirmation is for other accepted tax-residence confirmation purposes.
- HMRC decides whether the evidence and treaty conditions support the requested document. An application does not guarantee treaty relief in the other country.