How to Use the UK Non-Dom Tax Calculator

The UK Non-Dom Tax Calculator helps individuals with non-domiciled tax status estimate their potential tax liability on foreign income under the remittance basis.

This calculator is tailored to help UK residents who are non-domiciled (Non-Doms) understand the tax impact of remitting income to the UK and whether they are subject to the Remittance Basis Charge (RBC).

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What You Need to Know Before Using It

• If you’re a UK resident but not domiciled, you may use the remittance basis, meaning you only pay UK tax on foreign income brought into the UK.
• However, after a certain years of residence, you may need to pay a flat RBC to continue using the remittance basis.

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How to Use the Calculator

1. Enter Your Foreign Income

• Input the total foreign income you earned during the tax year.
• This is income not arising in the UK.

2. Enter the Number of Years You’ve Been a UK Resident

• This determines whether the £30,000 or £60,000 RBC applies.
• If you’ve been resident for 15+ years, you’re deemed domiciled and cannot use the remittance basis.

3. Enter the Amount You Remitted to the UK

• This is how much foreign income you brought into the UK.
• You will be taxed only on this amount (at 20% in this estimate).

4. Click “Calculate Tax”

• The tool will estimate:
  • Your RBC (if applicable)
  • Tax on remitted funds (20%)
  • Total tax due

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Example Scenario

• Foreign Income: £50,000
• Years Resident: 9
• Remitted to UK: £20,000

Result:

• RBC: £30,000
• Tax on Remittance: £4,000
• Total Tax Due: £34,000

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FAQ – UK Non-Dom Tax Calculator

Q1: What is a Non-Dom?

A non-domiciled individual is someone living in the UK whose permanent home (“domicile”) is in another country.

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Q2: What is the Remittance Basis?

It allows Non-Doms to pay UK tax only on foreign income/gains brought into the UK, not on total worldwide income.

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Q3: When is the Remittance Basis Charge (RBC) due?

• After 7 years of UK residence: £30,000
• After 12 years: £60,000
• After 15 years, you become deemed domiciled and cannot claim the remittance basis.

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Q4: Is this calculator accurate for official filings?

No. It’s an estimator. For official tax planning, consult a UK tax advisor or HMRC.

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Q5: What if I remitted zero income?

Then only the RBC (if applicable) applies. If you remit nothing, you may owe nothing, unless RBC applies due to your residency length.