BTL Calculator

Buy-to-let deal analysis — interest-only mortgage assumed (standard for UK BTL).

Deal Inputs

Purchase Price

Deposit

£50,000 cash required

Mortgage Rate (annual)

Interest-only rate

Monthly Rent

Monthly Running Costs

Insurance, maintenance, letting agent fees, void allowance

Monthly Cashflow

£163

£1,950 / year

Gross Yield

6.00%

Annual rent ÷ purchase price

Net Yield

5.10%

After running costs

ROI on Deposit

3.9%

Annual cashflow ÷ cash in

Rent received£1,000

Mortgage payment−£688

Running costs−£150

Net cashflow£163

Purchase price£200,000

Deposit (cash in)£50,000

Mortgage (loan)£150,000

Stamp duty, legal fees, and survey costs not included. A gross yield above 6% is typically considered strong for UK BTL.