If you are non-resident in the UK and receive UK-source income such as interest, pensions, royalties, or dividends, you may be entitled to reclaim UK tax under a Double Taxation Agreement (DTA).
However, HMRC regularly rejects HS304 claims due to technical errors, missing evidence, or incorrect residency assumptions.
This guide explains why HS304 forms are rejected, how to avoid common mistakes, and how to ensure your claim is HMRC-compliant the first time.
What Is Form HS304?
Form HS304 allows non-resident individuals to reclaim UK tax that has already been deducted from income covered by a Double Taxation Agreement.
DTAs are international treaties designed to:
- Prevent the same income being taxed twice
- Define which country has taxing rights over specific income types
HS304 applies after UK tax has been deducted.
(For relief before tax is deducted, HMRC uses DT-Individual.)
The Most Common Reasons HMRC Reject HS304 Forms
- Missing or Invalid Certificate of Overseas Tax Residence
The issue:
No certificate included, or the certificate does not meet HMRC requirements.
HMRC requires:
- An original Certificate of Tax Residence
- Issued by the overseas tax authority
- For the relevant tax year
Photocopies and scans are usually rejected.
How to fix it:
- Request the certificate directly from your local tax authority
- Ensure it confirms:
- You are tax resident in that country
- You are liable to tax on the income claimed
- The relevant income type and tax year
- Attach the original document to your HS304 submission
- Using an Outdated HS304 Form
The issue:
Submitting an older version of the form.
How to fix it:
Always download the latest HS304 form directly from GOV.UK. HMRC periodically updates wording and declaration requirements.
- Incomplete or Incorrect Information
The issue:
Missing details, mismatched figures, or incorrect tax years.
Common errors include:
- Missing UTR or overseas address
- Income figures not matching bank or pension statements
- Claiming the wrong tax year
How to fix it:
- Carefully complete every mandatory field
- Cross-check all figures against supporting documents
- Ensure income dates align with the UK tax year (6 April – 5 April)
- Incorrect UK Residency Status
The issue:
Claiming non-resident relief while still classed as UK tax resident.
How to fix it:
- Apply the Statutory Residence Test (SRT) using HMRC guidance (RDR3)
- If dual-resident, apply the treaty tie-breaker rules
- Keep detailed travel and workday records
Incorrect residency assumptions are one of the most common rejection triggers.
- Not Meeting Treaty Conditions for the Income Type
The issue:
The DTA does not grant relief for that income type—or applies restrictions.
How to fix it:
- Review the specific treaty article for:
- Interest
- Dividends
- Pensions
- Royalties
- Confirm:
- Which country has taxing rights
- Whether full or partial relief applies
DTAs differ significantly by country—never assume blanket relief.
How to Claim Relief Correctly Using HS304
Supporting Evidence Required
HMRC typically requires original documents, including:
- Bank interest certificates
- Pension payment statements
- UK tax deduction confirmations
Photocopies may result in delays or rejection.
Completing the Correct Relief Section
- Section 3(a): Full treaty relief
- Section 3(b): Partial relief
- UK REIT Property Income Dividends (PIDs): Complete based on treaty terms
Note on Dividends
Since April 2016, dividend taxation has changed. Treaty relief may still apply, but calculations differ. Always check:
- Treaty wording
- HMRC dividend guidance
HS304 Pre-Submission Compliance Checklist
Before submitting, confirm that you have:
Downloaded the latest HS304 form Confirmed non-residency under the SRT Attached an original tax residence certificate Included original UK tax deduction evidence Completed the correct relief section Checked the relevant DTA article Claimed the correct tax year
Conclusion
HMRC HS304 rejections are rarely random. They are almost always due to:
- Missing evidence
- Incorrect residency status
- Treaty misunderstandings
- Technical form errors
With careful preparation and accurate documentation, HS304 claims can be processed smoothly and refunds issued without delay.
Using specialist UK tax software or guided compliance tools, such as Taxd, can significantly reduce the risk of rejection—especially for non-residents dealing with complex treaty rules.
Frequently Asked Questions
What is an example of double taxation in the UK?
A non-resident is taxed on UK pension income in both the UK and their country of residence. A DTA determines which country provides relief.
What is the Statutory Residence Test (SRT)?
HMRC’s formal test (outlined in RDR3) that determines UK tax residency based on days spent in the UK, work patterns, and personal ties.
What counts as proof of tax residence?
An official Certificate of Tax Residence issued by your local tax authority for the relevant tax year.
How do I avoid double taxation on UK income?
- Use DT-Individual to prevent tax being deducted
- Use HS304 to reclaim tax already deducted
- Always apply the relevant DTA correctly
