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FSRE 1

UK Taxes Cheat Sheet

Income tax, NI, CGT, IHT, SDLT, corporation tax, ISAs and property tax essentials.

Income Tax

Tax paid on earnings:

  • Salary
  • Self-employment income
  • Rental income
  • Savings interest

2026 Personal Allowance

  • Most people can earn £12,570 tax free
Income Tax Bands
BandRate
Basic Rate20%
Higher Rate40%
Additional Rate45%

Scotland

  • Different income tax bands may apply
National Insurance (NI)

Paid by

  • Employees
  • Employers
  • Self-employed

Used to fund

  • State pension
  • NHS
  • Benefits

Important for Mortgage Advisers

  • Lenders use gross income, net income and NI deductions during affordability assessments
Main Types of NI Contributions
ClassWho Pays ItPurpose
Class 1Employees & employersEarnings from employment
Class 2Self-employedFlat weekly contribution
Class 4Self-employedPercentage of profits
Class 1AEmployersBenefits in kind (company car etc.)
Class 1BEmployersPAYE settlement agreements
Capital Gains Tax (CGT)

Tax on profit when selling assets such as:

  • Shares
  • Investments
  • Second homes

Main Home Exemption

  • Usually no CGT on primary residence

Buy-to-Let Property

  • CGT may apply on sale profits
Inheritance Tax (IHT)

Charged on estate after death.

Standard Nil Rate Band

  • £325,000
  • Above threshold: 40% tax usually applies

Residence Nil Rate Band

  • Extra allowance may apply when passing family home to children
Stamp Duty Land Tax (SDLT)

Tax paid when buying property in England & Northern Ireland.

Portion of Property PriceRate
Lower bands0%
Middle bands5%
Higher bands10–12%

First-Time Buyers

  • May receive relief

Additional Properties

  • Usually +3% surcharge
  • Applies to buy-to-let and second homes
Corporation Tax

Paid by limited companies on profits.

Important for

  • Limited company landlords
  • SPVs (Special Purpose Vehicles)
Savings & Investment Taxes

ISA (Individual Savings Account)

  • Tax-free savings/investments
  • No tax on interest
  • No tax on dividends
  • No tax on capital gains
Property Taxes (CeMAP Hot Topic)

Buy-to-Let — consider

  • Income tax on rent
  • CGT on sale
  • SDLT surcharge

Limited Company BTL

  • Corporation tax may apply instead of income tax
Tax-Efficient Products
ProductTax Benefit
ISATax-free growth
PensionTax relief
Junior ISATax-free child savings
HMRC

Main UK tax authority: HM Revenue & Customs.

Responsible for

  • Collecting taxes
  • Tax enforcement
  • Compliance