Hong Kong Rental Income: UK Tax & Mortgage Guide

In recent years, many Hong Kong families have moved to the UK through the BNO visa 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, there is no need to declare it to the UK; others believe that since property tax has been paid in Hong Kong, the UK will not impose additional taxes.

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 the 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 mortgaged, the rental arrangement 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 and renting out Hong Kong properties.

1. Does Hong Kong rental income still need to be reported to Hong Kong?

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 may involve property tax reporting obligations under the Hong Kong Inland Revenue Ordinance, and this does not automatically cease because the owner has moved abroad.

Personal Assessment may no longer be applicable

Many Hong Kong landlords previously opted for Personal Assessment to utilize personal allowances and other deductions to reduce overall tax liability.

However, if the owner has permanently relocated to the UK, whether they still qualify for Personal Assessment depends on meeting 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 qualify, 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 review their Hong Kong tax status rather than continuing with previous 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 required.

From April 2025, the UK officially 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 the ten consecutive tax years before 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 claimed, 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 is important to note that if FIG relief is chosen, the taxpayer generally cannot also claim the Personal Allowance and certain annual tax-free benefits for that year. Therefore, whether to claim should be assessed based on overall income and tax situation.

After four years, worldwide taxation generally resumes

After the FIG relief period ends, if the owner is still 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 claimed as 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 need to fulfill the statutory reporting procedures of both jurisdictions.

3. Besides tax, mortgage arrangements cannot be ignored

For many Hong Kong emigrants renting out their Hong Kong properties, the real issues often arise from mortgage terms rather than tax.

Check if the mortgage deed restricts letting

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

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

If the property use is changed without the bank's consent, the bank may take action upon discovering it during a future loan review, including requiring approval, changing mortgage terms, or in serious cases, demanding early repayment.

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

Open a Hong Kong eTAX account

After living in the UK long-term, notices 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:

• Receive electronic tax returns
• Check tax assessment notices
• Pay taxes online
• Update contact information

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

Keep complete rental and bank records

Whether for Hong Kong or the UK, keeping complete documents is very important.

It is recommended to keep at least:

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

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

📌 Frequently Asked Questions (FAQ)

Q1: If Hong Kong rental income stays 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 system. Whether Hong Kong rental income is subject to UK tax mainly depends 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 be considered?

Not necessarily. Hong Kong and the UK have a Double Taxation Agreement, so eligible Hong Kong taxes paid can be claimed as Foreign Tax Credit Relief in the UK. However, even if no additional tax is ultimately due, you may still need to complete the reporting process as required by HMRC.

Q3: When renting out a Hong Kong property after moving to the UK, must I inform the mortgage bank?

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 letting, and different banks have different arrangements. If loan terms are not followed, the bank may take action under the contract. Therefore, it is advisable to confirm with the lending bank before letting to avoid affecting the loan arrangement due to breach of mortgage terms.

Summary

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 bank rental policies may vary depending on individual circumstances, if high rental income, multiple overseas assets, or property sale is involved, it is advisable to consult professional tax or legal advisors in Hong Kong and the UK before filing taxes and arranging mortgages, to avoid unnecessary tax and financing risks due to procedural or reporting errors.