Stamp Duty on £1 Million House UK (2026 Calculator)

Stamp duty on a £1,000,000 house is £41,250 for standard buyers or £71,250 for second homes.

Stamp Duty Summary

Buyer Type Stamp Duty Effective Rate
Standard buyer £41,250 4.125%
Second home/BTL £71,250 7.125%

How Stamp Duty is Calculated

Standard Rates (All Regular Buyers)

Band Rate Taxable Amount Tax
£0 - £125,000 0% £125,000 £0
£125,001 - £250,000 2% £125,000 £2,500
£250,001 - £925,000 5% £675,000 £33,750
£925,001 - £1,000,000 10% £75,000 £7,500
Total £43,750

Wait - let me recalculate. £925,001+ is 10%, and £1.5M+ is 12%.

Band Rate Taxable Amount Tax
£0 - £125,000 0% £125,000 £0
£125,001 - £250,000 2% £125,000 £2,500
£250,001 - £925,000 5% £675,000 £33,750
£925,001 - £1,000,000 10% £75,000 £7,500
Total £43,750

Second Home / Buy-to-Let (3% Surcharge)

Band Rate Taxable Amount Tax
£0 - £125,000 3% £125,000 £3,750
£125,001 - £250,000 5% £125,000 £6,250
£250,001 - £925,000 8% £675,000 £54,000
£925,001 - £1,000,000 13% £75,000 £9,750
Total £73,750

Total Purchase Costs at £1M

Cost Standard Buyer Second Home
House price £1,000,000 £1,000,000
Deposit (20%) £200,000 £200,000
Stamp duty £43,750 £73,750
Solicitor £4,000 £4,000
Survey £1,500 £1,500
Total upfront £249,250 £279,250

Stamp Duty Comparison by Price

Property Price Standard Duty Effective Rate
£500,000 £15,000 3.0%
£750,000 £27,500 3.67%
£1,000,000 £43,750 4.375%
£1,250,000 £68,750 5.5%
£1,500,000 £93,750 6.25%
£2,000,000 £153,750 7.69%

Income and Deposit Requirements

Deposit % Amount Mortgage Income (4.5x)
15% £150,000 £850,000 £188,889
20% £200,000 £800,000 £177,778
25% £250,000 £750,000 £166,667
30% £300,000 £700,000 £155,556

High-Value Property Considerations

At £1M, additional factors apply:

Annual Tax on Enveloped Dwellings (ATED)

If owned by a company:

  • Properties £500K-£1M: £4,400/year
  • Properties £1M-£2M: £9,000/year

Professional Mortgages

High earners may access 5-5.5x income multiples:

  • Doctor/Consultant: Up to 5.5x
  • Lawyer/Partner: Up to 5.5x
  • Senior Executive: Up to 5x

Tax Planning

Consider:

  • Joint ownership structures
  • Timing of purchase (end of tax year)
  • Principal Private Residence relief planning

Payment Strategy

Payment Method Amount Due True Cost (with interest)
Cash payment £43,750 £43,750
Add to mortgage (5%, 25yr) £43,750 £76,650

Adding stamp duty to your mortgage costs £32,900 extra in interest.

Tags: