Tax and Mortgage Tips for Hong Kong Landlords in the UK

In recent years, many Hong Kong families have moved to the UK through BNO visas or other immigration routes, while retaining their Hong Kong properties for rental purposes, hoping to use rental income to maintain cash flow or for long-term asset allocation.

Many landlords assume that as long as the rental income stays in a Hong Kong bank account, they do not need to declare it to the UK; others believe that since they have already paid property tax in Hong Kong, the UK will not levy additional tax.

In fact, under the 2026 tax system, Hong Kong rental income may involve reporting obligations in both Hong Kong and the UK. Moreover, since the UK implemented a completely new Foreign Income and Gains (FIG) regime from the 2025/26 tax year, the treatment of overseas income has changed significantly.

On the other hand, if the property is still subject to a mortgage, rental arrangements may also involve bank mortgage terms and loan contract requirements, not just tax issues.

The following objectively summarizes the three key tax and mortgage points that Hong Kong emigrants to the UK should pay most attention to when retaining Hong Kong properties for rental.

1. Is Hong Kong rental income still required to be reported to Hong Kong tax authorities?

Many Hong Kong emigrants mistakenly believe that since they no longer reside in Hong Kong, they do not need to report rental income.

In reality, Hong Kong adopts the Territorial Source Principle.

As long as the rental income originates from a Hong Kong property, it generally still involves property tax reporting obligations under Hong Kong's Inland Revenue Ordinance, and this does not automatically disappear due to the owner's emigration.

Personal Assessment may no longer be applicable

Many Hong Kong landlords previously chose to apply for Personal Assessment, using personal allowances and other deductions to reduce overall tax burden.

However, if the owner has permanently moved to the UK, whether they still meet the eligibility criteria depends on the relevant conditions under the Inland Revenue Ordinance at the time, and not all emigrants can continue to use Personal Assessment.

If they do not meet the relevant criteria, rental income is generally calculated under the Hong Kong property tax system, with tax levied at the standard rate on the net assessable value.

Therefore, after moving to the UK, one should reassess their Hong Kong tax status and not simply follow previous tax filing methods.

2. Under the new FIG regime, does Hong Kong rental income still need to be reported to HMRC?

This is the most common question among Hong Kong emigrants to the UK.

The answer is:

It may be necessary.

Since April 2025, the UK has formally abolished the long-standing Remittance Basis and replaced it with the new Foreign Income and Gains (FIG) regime.

FIG relief may be available for the first four tax years

If the taxpayer was not a UK tax resident for ten consecutive tax years prior to becoming a UK tax resident, and meets HMRC requirements, they may apply for FIG relief on qualifying foreign income and gains for the first four tax years after becoming a UK tax resident.

If eligible and the application is made, the relevant Hong Kong rental income is generally not subject to UK income tax, even if the funds are brought into the UK, and the old Remittance Basis rules no longer apply.

However, it should be noted that after opting for FIG relief, the taxpayer generally cannot also claim Personal Allowance and certain annual tax-free benefits for that year. Therefore, whether to apply should be evaluated based on overall income and tax circumstances.

After four years, worldwide taxation generally resumes

After the FIG relief period ends, if the owner remains a UK tax resident, Hong Kong rental income generally still needs to be reported in the UK.

The UK will calculate the relevant tax based on the taxpayer's applicable income tax rate.

Since Hong Kong and the UK have a Comprehensive Double Taxation Agreement (CDTA), taxes paid in Hong Kong that meet the requirements can generally be used to claim Foreign Tax Credit Relief under UK tax rules, to avoid double taxation on the same income.

Therefore, in practice, many people do not "pay tax twice," but rather need to fulfill the statutory reporting procedures of both jurisdictions.

3. In addition to tax filing, mortgage arrangements cannot be ignored

Many Hong Kong emigrants who rent out their Hong Kong properties find that the real issues are not tax-related but mortgage terms.

Check if the mortgage deed restricts renting out

If the property is still subject to a mortgage, the owner should first review the mortgage deed and loan terms.

Some banks allow renting out but require prior application for Consent to Let or relevant procedures; other banks may require changes to the mortgage arrangement.

If the property use is changed without the bank's consent, and the bank later discovers it during loan reviews, it may take appropriate measures under the mortgage deed, including requiring retroactive approval, changing mortgage terms, or even demanding early loan repayment in severe cases.

Different banks have different policies, so it is advisable to confirm with the lending bank before renting out.

Open a Hong Kong eTAX account

After living in the UK long-term, notifications from the Hong Kong Inland Revenue Department may not be received in time.

It is recommended to open an eTAX account before leaving Hong Kong to facilitate:

• Receiving electronic tax returns
• Checking tax assessments
• Paying taxes online
• Updating contact information

This can reduce the risk of missing statutory deadlines due to overseas postal delays.

Keep complete rental and bank records

Whether in Hong Kong or the UK, maintaining complete documentation is crucial.

It is recommended to keep at least:

• Tenancy agreements
• Rental receipts
• Bank deposit records
• Maintenance invoices
• Management fees and rates records
• Agent commission receipts
• Copies of tax filings

Complete records not only facilitate submitting information to the Hong Kong Inland Revenue Department but also help the UK HMRC verify income sources and deductible expenses in the future.

📌 Frequently Asked Questions (FAQ)

Q1: If Hong Kong rental income remains in a Hong Kong account and is not remitted to the UK, is it not necessary to report to HMRC?

Not necessarily. Since 2025, the UK has abolished the traditional Remittance Basis. Whether Hong Kong rental income is subject to UK tax depends mainly on whether you qualify under the FIG regime and whether you are a UK tax resident at the time, rather than solely on whether the funds are remitted to the UK.

Q2: If property tax has been paid in Hong Kong, does that mean the UK does not need to consider it?

Not necessarily. Hong Kong and the UK have a Double Taxation Agreement, so Hong Kong taxes paid that meet the conditions can be used to claim Foreign Tax Credit Relief in the UK. However, even if no additional tax is ultimately due, it may still be necessary to complete the reporting process as required by HMRC.

Q3: After moving to the UK, do I have to inform the mortgage bank if I rent out my Hong Kong property?

You should first check the mortgage deed and loan terms. Many banks require the owner to apply for Consent to Let or obtain the bank's consent before renting out, while other banks may have different arrangements. If loan terms are not followed, the bank may take appropriate measures under the contract. Therefore, it is advisable to confirm with the lending bank before renting out to avoid affecting loan arrangements due to breach of mortgage terms.

Conclusion

For Hong Kong emigrants to the UK, retaining Hong Kong properties for rental income remains a common asset allocation strategy. However, Hong Kong rental income is no longer just a local tax issue in Hong Kong; it involves tax systems in both Hong Kong and the UK, mortgage arrangements, and cross-border compliance requirements.

Since the FIG regime, Hong Kong property tax system, and various banks' rental policies may differ based on individual circumstances, it is advisable to consult professional tax or legal advisors in both Hong Kong and the UK before filing taxes or arranging mortgages, especially when dealing with high rental income, multiple overseas assets, or plans to sell the property, to avoid unnecessary tax and financing risks due to procedural or reporting errors.