Mortgage & Home Financing
- • Monthly repayment calculations in £
- • Deposit impact analysis
- • Interest rate comparison tools
- • Loan term optimization
- • Refinancing break-even analysis
Stamp Duty Calculator
Mortgage, loan, investment and compound interest calculators
Complete Financial Planning Calculator Suite
Professional financial planning tools with 10+ calculators for mortgages, investments, retirement, loans, and tax optimization
Stamp Duty Calculator
UK SDLT estimate for England & Northern Ireland — rates in force from 1 April 2025, checked 2 October 2026. Guidance only; verify on GOV.UK / HMRC.
The higher rates for additional dwellings apply to purchases of £40,000 or more. Not modelled: the 2% surcharge for non-UK residents, leasehold and lease-premium rules, and non-residential or mixed-use purchases. Scotland (LBTT) and Wales (LTT) have separate taxes.
Professional Financial Planning Tools
Our comprehensive financial calculator suite provides accurate, professional-grade tools for mortgage planning, investment analysis, retirement planning, loan calculations, and tax estimation. All calculations follow established financial formulas and industry best practices.
Investment & Growth Planning
- • Compound interest calculations
- • Portfolio growth projections
- • Monthly contribution planning
- • Risk-adjusted return analysis
- • Regular monthly investing effects
Retirement Planning
- • Workplace pension, SIPP and ISA growth projections
- • Inflation-adjusted pot projection
- • State Pension not included (check GOV.UK)
- • Illustrative growth assumption you can change
- • Pension tax relief basics explained
Loan & Payment Analysis
- • Personal loan payment calculations
- • Auto financing comparisons
- • Loan repayment planning
- • Debt consolidation analysis
- • Early payoff strategies
Tax Planning & Optimization
- • Income tax estimation
- • International tax estimation
- • Allowances and tax band basics
- • Take-home pay planning
- • Tax-efficient investment strategies
Advanced Financial Tools
- • Amortization schedule analysis
- • Inflation impact calculations
- • Present value analysis
- • Future value projections
- • Break-even point analysis
How to Use Financial Calculators Effectively
Accurate Input Data
Use current market rates, actual loan terms, and realistic assumptions. For mortgage calculations, include buildings insurance and any fees. Investment projections should use conservative return estimates based on historical averages.
Professional Consultation
These calculators provide estimates for planning purposes. Always consult with qualified financial advisors, tax professionals, or mortgage specialists for personalized advice and final decision-making on significant financial matters.
Scenario Planning
Test multiple scenarios with different interest rates, terms, and amounts. Consider best-case, worst-case, and most-likely scenarios to make informed financial decisions with proper risk assessment.
Regular Updates
Revisit calculations regularly as market conditions, interest rates, and personal circumstances change. Annual reviews help ensure your financial strategies remain aligned with your goals and market realities.
Financial Planning Made Simple
Whether you're buying your first home, planning for retirement, or comparing loan options, our financial calculators provide the insights you need to make confident financial decisions. All tools are free, require no registration, and deliver professional-grade accuracy.
Stamp Duty Calculator — England & NI
Estimate Stamp Duty Land Tax (SDLT) on a residential purchase in England or Northern Ireland, using rates in force from 1 April 2025. Guidance only.
Estimate Stamp Duty Land Tax (SDLT) on a residential property purchase in England or Northern Ireland using progressive price bands. This free online stamp duty calculator from Calculator Direct is an educational planning aid — not tax, legal or conveyancing advice.
Rates shown are the standard residential SDLT bands for England & Northern Ireland, in force from 1 April 2025 and checked against GOV.UK on 2 October 2026. SDLT rates are not tied to the tax year. Always verify the current rates and any reliefs or surcharges on GOV.UK / HMRC before you rely on figures — thresholds and rules can change.
The higher rates for additional dwellings apply to purchases of £40,000 or more. Not modelled: the 2% surcharge for non-UK residents, leasehold and lease-premium rules, and non-residential or mixed-use purchases. Scotland (LBTT) and Wales (LTT) have separate taxes.
How SDLT works (progressive bands)
SDLT is not a flat percentage of the whole price. You pay the rate that applies to each portion of the purchase price that falls inside a band, then add those amounts together.
Standard residential bands (England & Northern Ireland, rates in force from 1 April 2025, checked 2 October 2026), per GOV.UK; verify before use: 0% up to £125,000; 2% from £125,001 to £250,000; 5% from £250,001 to £925,000; 10% from £925,001 to £1,500,000; 12% above £1,500,000.
Scotland uses Land and Buildings Transaction Tax (LBTT) and Wales uses Land Transaction Tax (LTT) — different taxes with different bands. Do not use England/NI SDLT tables for a Scottish or Welsh purchase.
First-time buyers and additional dwellings
If you qualify as a first-time buyer and the purchase price is £500,000 or less, GOV.UK describes relief along these lines (confirm eligibility on GOV.UK): 0% on the portion up to £300,000 and 5% on the portion from £300,001 to £500,000. Over £500,000, first-time buyer relief is not available.
Higher rates often apply when buying an additional residential property: GOV.UK says you usually pay 5% on top of the standard rates if the purchase means you own more than one residential property (the calculator adds 5% to every band). Whether you pay higher rates depends on what you already own and timing, and replacing your main residence can be an exception. Check current HMRC higher-rates rules before budgeting.
How to use this calculator
- Confirm the property is in England or Northern Ireland (not Scotland or Wales).
- Enter the purchase price (consideration) you expect to pay.
- Select buyer type: standard, first-time buyer, or additional dwelling (higher rates).
- Review the estimated SDLT from progressive bands.
- Verify the result against current HMRC published rates for your completion date.
Worked example: £400,000 standard residential purchase (rates in force from 1 April 2025)
Under the standard residential bands: £0 on the first £125,000; £2,500 on the next £125,000 at 2%; £7,500 on the remaining £150,000 at 5%. Estimated SDLT ≈ £10,000.
If the same purchase qualified for first-time buyer relief: 0% on the first £300,000 + 5% on £100,000 = £5,000. Confirm eligibility with HMRC / your conveyancer.
Frequently asked questions
What is Stamp Duty Land Tax (SDLT)?
SDLT is a tax that can apply when you buy land or property in England or Northern Ireland. For many residential buyers, the amount depends on the purchase price and which progressive bands apply, plus any reliefs or higher rates.
Does this calculator cover the whole UK?
No. This page is for England & Northern Ireland residential SDLT. Scotland charges LBTT and Wales charges LTT — separate taxes with their own bands and rules.
Do these SDLT rates change each tax year?
Not on a fixed schedule. SDLT is not tied to the 6 April tax year: the standard residential bands summarised here have been in force from 1 April 2025 for England & Northern Ireland and were checked against GOV.UK on 2 October 2026. Rates change only when the Government announces a change. Use the rates in force on your completion date — see GOV.UK Stamp Duty Land Tax (https://www.gov.uk/stamp-duty-land-tax/residential-property-rates).
Is this tax advice?
No. Calculator Direct provides free online tools for education and planning only. Verify all figures on GOV.UK / HMRC and speak to a qualified conveyancer or tax adviser before making financial decisions.