Local Housing Allowance here
South East Herts rates, 2026–27, a month: shared room £475 · 1 bed £835 · 2 beds £1,050 · 3 beds £1,370 · 4 beds £1,700. The most housing support a tenant on benefits can get here; a guide to the bottom of the market.
Planning
We have no HMO Article 4 data for this council, so we cannot say. Check with the council. HMO guide
Cash in
| Deposit (25% of price) | £48,750 |
| Stamp Duty Land Tax (additional-home rates) | £11,150 |
| Legal fees | £1,800 |
| Survey | £600 |
| Total cash in | £62,300 |
Stamp Duty Land Tax: £11,150
| £0 – £125,000 | 5% | £6,250 |
| £125,000 – £195,000 | 7% | £4,900 |
Additional-home rates, as checked in October 2026. Buying through a company, or replacing your main home, can change this. Stamp duty calculator
A year of letting
| Rent (3 rooms x £590 a month) | £21,240 |
| Mortgage payments (interest only, 5% on £146,250) | −£7,312 |
| Voids (5% of rent) | −£1,062 |
| Letting and management (10% of rent collected) | −£2,018 |
| Repairs and maintenance (8% of rent) | −£1,699 |
| Landlord insurance | −£350 |
| Bills you pay (energy, water, broadband, council tax) | −£5,400 |
| Cash flow before tax | £3,399 (£283 a month) |
- Gross yield
- 10.9%
- Net yield (before mortgage)
- 5.5%
- Return on cash in
- 5.5%
Will a lender agree?
Lenders usually test the rent against interest at a higher “stress” rate, here 7%. Rent covers it by 125% (basic-rate taxpayers and companies): yes; by 145% (higher-rate taxpayers): yes. The rent supports a loan of about £242,743 or £209,261. Lenders differ.
All figures are before income tax. Individual landlords cannot deduct mortgage interest in full (they get a 20% tax credit instead), so higher-rate taxpayers pay tax on more than their cash flow. This is a calculator, not financial advice. Read the guide