Stamp Duty on £300,000 House UK (2026 Calculator)
By Wealthvieu
·
Updated
Stamp duty on a £300,000 house is £0 for first-time buyers or £5,000 for home movers.
Stamp Duty Summary
| Buyer Type |
Stamp Duty |
Effective Rate |
| First-time buyer |
£0 |
0% |
| Home mover |
£5,000 |
1.67% |
| Second home/BTL |
£14,000 |
4.67% |
How Stamp Duty is Calculated
Home Movers (Standard Rates)
| Band |
Rate |
Taxable Amount |
Tax |
| £0 - £125,000 |
0% |
£125,000 |
£0 |
| £125,001 - £250,000 |
2% |
£125,000 |
£2,500 |
| £250,001 - £300,000 |
5% |
£50,000 |
£2,500 |
| Total |
|
|
£5,000 |
First-Time Buyers
| Band |
Rate |
Taxable Amount |
Tax |
| £0 - £425,000 |
0% |
£300,000 |
£0 |
| Total |
|
|
£0 |
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 - £300,000 |
8% |
£50,000 |
£4,000 |
| Total |
|
|
£14,000 |
Total Purchase Costs at £300K
| Cost |
First-Time Buyer |
Home Mover |
| House price |
£300,000 |
£300,000 |
| Deposit (10%) |
£30,000 |
£30,000 |
| Stamp duty |
£0 |
£5,000 |
| Solicitor |
£1,700 |
£1,700 |
| Survey |
£500 |
£500 |
| Total upfront |
£32,200 |
£37,200 |
FTB Savings at £300K
First-time buyers save £5,000 compared to home movers at this price point.
| Comparison |
FTB |
Home Mover |
Difference |
| Stamp duty |
£0 |
£5,000 |
£5,000 saved |
| Effective rate |
0% |
1.67% |
1.67% saved |
When to Pay Stamp Duty
- Due: Within 14 days of completion
- Who pays: Usually handled by your solicitor
- Payment method: Electronic transfer to HMRC
- Late payment: Interest and penalties apply
Can You Add Stamp Duty to Your Mortgage?
Some lenders allow you to add stamp duty to your mortgage, but:
- Increases your loan amount
- You’ll pay interest on the stamp duty for 25+ years
- Better to pay upfront if possible
Example: Adding £5,000 stamp duty to mortgage at 5% over 25 years costs £8,773 total.
