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UK Tax Answers

Expert answers to common UK tax questions, backed by official HMRC guidance and legislation. Each answer includes verified citations to source documents.

What is the VAT registration threshold in the UK?

I now have all the information needed to provide a comprehensive answer. --- UK VAT Registration Threshold What the law says The VAT registration...

11 March 2026

How do I deregister as self-employed with HMRC?

Deregistering as Self-Employed with HMRC What the law says You are legally required to notify HMRC when you cease to be a self-employed earner. Under the...

11 March 2026

How does carry back of trading losses work?

Here is a comprehensive answer on how carry back of trading losses works for companies under UK corporation tax. --- What the law says The basic rule —...

11 March 2026

What is sideways loss relief for self-employed people?

Here is a comprehensive explanation of sideways loss relief for self-employed people. --- Sideways Loss Relief for the Self-Employed What the law says...

11 March 2026

Can I claim loss relief if my business makes a loss?

Business Loss Relief in the UK Yes, you can claim loss relief if your business makes a loss. The rules differ depending on whether you are an individual...

11 March 2026

What is writing down allowance and how is it calculated?

Writing Down Allowance (WDA) — What It Is and How It Is Calculated --- What the law says Nature of the allowance A Writing Down Allowance (WDA) is a...

11 March 2026

How do I claim the first year allowance on business assets?

Based on the sources gathered, I can provide a structured answer, though the available materials do not contain the full text of CAA 2001 ss.39–52 (the...

11 March 2026

What is a balancing charge when I sell a business asset?

I have good sources to answer this question. Let me provide a clear explanation based on the retrieved HMRC guidance. --- What is a Balancing Charge When...

11 March 2026

What is the annual investment allowance?

Annual Investment Allowance (AIA) What the law says The AIA is a capital allowance available in respect of qualifying expenditure on plant or machinery,...

11 March 2026

Can I claim capital allowances as a sole trader?

Yes, as a sole trader you can claim capital allowances. Here is a summary of the key rules: --- What the law says The general rule under CAA 2001 s.11 is...

11 March 2026

How long do I need to keep business records for tax?

Here is a summary of how long you need to keep business records for tax purposes in the UK: --- HMRC Guidance / Practice The retention period depends on...

11 March 2026

What records do I need to keep as a sole trader?

Records a Sole Trader Must Keep --- What the law says Under TMA 1970, s.12B(1), any person who may be required to make and deliver a Self Assessment...

11 March 2026

What is the cash basis accounting method for small businesses?

Here is a comprehensive answer on the cash basis accounting method for small businesses under UK tax law. --- What the Law Says The cash basis for small...

11 March 2026

What are overlap profits in self-assessment?

I now have sufficient information to provide a comprehensive answer. --- Overlap Profits in Self-Assessment What the law says The relevant statutory...

11 March 2026

What is the basis period for self-assessment?

Basis Periods for Self-Assessment What the law says The statutory framework for basis periods is found in ss.196–220 ITTOIA 2005. The key provision,...

11 March 2026

How do I work out my mileage allowance for self-employment?

I now have all the information needed to provide a comprehensive answer. Here it is: --- Mileage Allowance for Self-Employment What the law says...

11 March 2026

Can I claim my home office as a business expense?

Can I Claim My Home Office as a Business Expense? Yes — but the rules depend on your status (self-employed vs employee) and how you use the space. Here is...

11 March 2026

What is simplified expenses for self-employed people?

Simplified Expenses for Self-Employed People What the law says Simplified expenses are governed by Chapter 5A of the Income Tax (Trading and Other Income)...

11 March 2026

What is the trading allowance for self-employed people?

The Trading Allowance for Self-Employed People --- What the law says The trading allowance is set at £1,000 per tax year for individuals. This is defined...

11 March 2026

What expenses can I claim as a sole trader?

Expenses a Sole Trader Can Claim What the law says The core statutory rule is found in s.34 ITTOIA 2005. No deduction is allowed when calculating trade...

11 March 2026

How do I register as self-employed with HMRC?

How to Register as Self-Employed with HMRC HMRC Guidance / Practice Who needs to register and using which form When an individual becomes self-employed,...

11 March 2026

How is rental income from property taxed in the UK?

How is Rental Income from Property Taxed in the UK? What the law says Definition of a UK Property Business A person's UK property business consists of...

11 March 2026

What is the blind person's allowance?

Here is a comprehensive answer on the blind person's allowance: --- What the law says Amount and entitlement (ITA 2007, s.38) An individual who makes a...

11 March 2026

Can I claim tax relief on charitable donations?

Yes — tax relief on charitable donations is available in the UK, but the rules differ depending on whether you are an individual or a company. Here is a...

11 March 2026

How does gift aid work for charitable donations?

Here is a comprehensive explanation of how Gift Aid works for charitable donations under UK tax law. --- What the law says The Relief (ITA 2007, s.414) An...

11 March 2026

What is a P11D and who needs to complete one?

Here is a comprehensive answer to your question. --- What is a P11D and Who Needs to Complete One? What the law says The P11D is a statutory return —...

11 March 2026

What is a P45 and when is it issued?

What is a P45 and when is it issued? --- What the law says A Form P45 is a statutory PAYE form that must be completed when an employment ceases. Under...

11 March 2026

What is a P60 and what should I do with it?

Here is a comprehensive answer about the P60: --- What is a P60? What the law says A P60 is a formal certificate called the "End of Year Certificate". By...

11 March 2026

How do I change my PAYE tax code?

Here is a comprehensive answer based on the available source documents: --- How to Change Your PAYE Tax Code What the law says Under the Income Tax (Pay...

11 March 2026

What does the emergency tax code mean?

What is the Emergency Tax Code? What the law says Under the PAYE regulations, when a new employee has no Form P45 and indicates that the job is their only...

11 March 2026

What is a tax code and how is it calculated?

What is a Tax Code and How is it Calculated? What the law says A tax code is used within the PAYE (Pay As You Earn) system to determine how much income...

11 March 2026

How does PAYE work in the UK?

How PAYE Works in the UK What the law says PAYE (Pay As You Earn) is the system by which income tax on employment and pension income is collected at...

11 March 2026

What is a simple assessment from HMRC?

What is a Simple Assessment from HMRC? What the law says Simple Assessment is a power introduced by section 167 and Schedule 23 of the Finance Act 2016,...

11 March 2026

What is a P800 tax calculation?

HMRC Guidance / Practice A P800 Tax Calculation is a document issued by HMRC to PAYE taxpayers (i.e. those not in Self Assessment) following an...

11 March 2026

How do I claim a tax refund from HMRC?

The question "How do I claim a tax refund from HMRC?" is broad and the answer depends on the type of tax involved. Based on the available HMRC guidance,...

11 March 2026

What is the dividend allowance?

I now have sufficient information to provide a comprehensive answer. Here is the full picture: --- The Dividend Allowance What the law says The dividend...

11 March 2026

How are dividends taxed in the UK?

I now have comprehensive sources to provide a thorough answer. Here is a structured overview of how dividends are taxed in the UK: --- How Are Dividends...

11 March 2026

What is the starting rate for savings?

What the law says The starting rate for savings is 0%, as set out in the Income Tax Act 2007 (ITA 2007), s. 7(1). This rate applies to so much of an...

11 March 2026

How is interest income taxed in the UK?

How is Interest Income Taxed in the UK? The UK tax treatment of interest income differs depending on whether the recipient is an individual or a company,...

11 March 2026

What is the personal savings allowance?

Here is a comprehensive answer on the Personal Savings Allowance (PSA). --- What the law says The PSA is formally known in statute as the "savings...

11 March 2026

How does the high income child benefit charge work?

Here is a comprehensive explanation of how the High Income Child Benefit Charge (HICBC) works. --- What the law says The charge is found in s.681B and...

11 March 2026

What is the married couple's allowance?

Here is a comprehensive explanation of the Married Couple's Allowance (MCA). --- What the law says The Married Couple's Allowance is a tax reduction (not...

11 March 2026

What is the marriage allowance and how do I claim it?

Here is a comprehensive answer on the Marriage Allowance. --- Marriage Allowance What the law says Statutory basis: The Marriage Allowance is found in...

11 March 2026

Can I reduce my payment on account if I expect to earn less?

Can You Reduce Your Payment on Account If You Expect to Earn Less? Yes. You can make a claim to reduce your Self Assessment payments on account if you...

11 March 2026

What is a payment on account for self-assessment?

Here is a comprehensive explanation of payments on account for Self Assessment: --- What the law says Under s.59A Taxes Management Act 1970 (TMA 1970),...

11 March 2026

How do I pay my self-assessment tax bill?

I was unable to find dedicated HMRC guidance specifically on Self Assessment payment methods in the retrieved sources. The available materials relate...

11 March 2026

What happens if I miss the self-assessment tax return deadline?

What happens if you miss the self-assessment tax return deadline? Missing the self-assessment filing deadline triggers a structured series of escalating...

11 March 2026

When is the deadline for filing a self-assessment tax return?

Based on the retrieved sources, here is a comprehensive answer: --- Deadline for Filing a Self-Assessment Tax Return What the law says The filing deadline...

11 March 2026

How do I register for self-assessment with HMRC?

HMRC Guidance / Practice Based on the available HMRC guidance, here is how to register for Self Assessment, depending on your circumstances: Which form to...

11 March 2026

What are the income tax rates and bands in the UK?

Here is a comprehensive answer on UK income tax rates and bands for 2024-25. --- What the law says Framework (ITA 2007) The Income Tax Act 2007 (ITA 2007)...

11 March 2026

What is the personal allowance for income tax in the UK?

Here is a comprehensive answer on the UK income tax personal allowance. --- What the law says The standard personal allowance is £12,570. This is set by...

11 March 2026