Band-by-Band Calculation for £600,000
SDLT is calculated in stepped progressive slices across each statutory rate band:
| SDLT Band | Statutory Rate | Taxable Portion | SDLT Due |
|---|---|---|---|
| Up to £125,000 | 0% | £125,000 | £0 |
| £125,001 to £250,000 | 2% | £125,000 | £2,500 |
| £250,001 to £600,000 | 5% | £350,000 | £17,500 |
| Total Standard SDLT Liability | £20,000 | ||
£600,000 Mortgage & Affordability Context
Estimated 10% Deposit
£60,000
Upfront cash required
Est. Monthly Mortgage
£2,688/mo
At ~4.5% over 25 years
Household Income Needed
~£120,000/yr
At typical 4.5x lending cap
Upfront Total Cash
£80,000
10% Deposit + Standard SDLT