Finance tool · Free, no signup
Rental Yield Calculator (UK, 2026)
Calculate gross and net rental yield on a UK buy-to-let. Includes mortgage interest, running costs, Section 24 tax impact and true cash-on-cash return.
Purchase
Rent & voids
Running costs (annual)
Mortgage & tax
Yields
Gross
6.72%
Net (pre-tax)
5.48%
Cash on cash
0.44%
Annual breakdown
- Gross rent
- £16,800
- Void loss
- – £646
- Effective rent
- £16,154
- Management fee
- – £1,615
- Other running costs
- – £850
- Mortgage interest
- – £9,844
- Income tax (Section 24)
- – £3,507
- Net cashflow (after tax)
- £338
Notes
- Section 24: mortgage interest is not deductible; you get a 20% tax credit instead.
- Does not account for capital allowances, wear & tear, or Ltd-company structure.
- Assumes interest-only BTL mortgage. Repayment mortgages reduce cashflow but build equity.
Save your scenarios
Want to save, share and compare?
LetCompliance tracks every property in your portfolio alongside these numbers, plus rent, deposits, certificates and more, so you\'re never recalculating from scratch. 7-day free trial, no card needed.
Start free trialOther tools