Stamp Duty Calculator
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Interactive Stamp Duty Tools

Free tools to help you assess, plan, and optimise your stamp duty. From quick eligibility checks to detailed financial comparisons.

10

Free Tools

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Results

Comparison Tools

Comparison

Rent vs Buy with Stamp Duty

Year-by-year cost comparison factoring stamp duty into the total cost of buying versus renting.

  • Compound growth over 5-30 years
  • Factors SDLT, mortgage, maintenance
  • Side-by-side annual breakdown

Planning Tools

Planning

Stamp Duty Savings Planner

Calculate how long it will take to save for stamp duty alongside your deposit and legal fees.

  • Month-by-month savings roadmap
  • SDLT + deposit + fees combined
  • Interest on savings included
Strategy

Price Band Optimizer

Find stamp duty sweet spots near band thresholds and see exactly where marginal costs jump.

  • Visualise SDLT band boundaries
  • Identify negotiation targets
  • FTB vs standard thresholds
Refund

Refund Eligibility Checker

Answer a few questions to find out if you can claim a stamp duty refund on the 5% surcharge.

  • 36-month refund window
  • Estimated refund amount
  • HMRC claim deadline shown
MDR

MDR Benefit Calculator

Estimate savings from Multiple Dwellings Relief for qualifying pre-March 2024 contracts.

  • Standard vs MDR comparison
  • Per-dwelling breakdown
  • Contract date eligibility check
Affordability

Affordability with Stamp Duty

See your true buying power after stamp duty erodes your deposit and affects mortgage affordability.

  • Income-based max borrowing
  • SDLT impact on deposit
  • Adjusted property budget

Assessment Tools

Assessment

Buyer Type Identifier

Answer simple questions to discover which SDLT category applies to you and which rates you will pay.

  • FTB, standard, or additional?
  • Handles joint purchases
  • Links to the right calculator
Relief

Relief Eligibility Checker

Check which SDLT reliefs and exemptions you may qualify for based on your circumstances.

  • Covers 8 relief types
  • Estimated savings shown
  • Links to detailed guides
Surcharge

Surcharge Risk Checker

Find out whether you will face the 5% additional dwelling surcharge based on your property situation.

  • Married couple rules
  • Inherited property test
  • Refund route assessment
Classification

Property Type Classifier

Determine whether your property is residential, commercial, or mixed-use for stamp duty purposes.

  • Residential vs commercial test
  • Mixed-use savings potential
  • HMRC challenge areas flagged

Calculate Your Stamp Duty

Need a quick calculation? Use our main stamp duty calculator for an instant breakdown of what you will owe.

Calculate Now