How much can I borrow for my Buy-to-Let mortgage?

Our Buy-to-Let mortgage calculator will give you an estimate of how much money you can borrow to fund the purchase of a second home or a property that you intend to let out to tenants. 

Enter your proposed monthly rent details below, select either 5% or 5.5% on the stress test rate field and use the 'Calculate' button. (Please note the calculation assumes a buffer of 125%).

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It should be stressed that this is a very generic guide.  As with everything in the mortgage market, your individual circumstances will dictate whether you qualify for a buy-to-let mortgage. We strongly advise that you speak to one of our advisers about your own situation before committing to anything.

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The maximum loan you can borrow is:

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This is not a quotation under the Consumer Credit Act. Figures are subject to validation of income, credit checks and a property valuation.

What do these fields mean?

When measuring affordability for Buy-to-Let mortgages, lenders stress test applications against mortgage rates rising to 5% and sometimes to 5.5%, even if the agreed final rate is lower, to guard against unexpected rises in costs for landlords.

Lenders also typically require a ‘buffer’ of 125% - i.e. the rental income each month must be 125% of the mortgage repayments.

Enter your proposed monthly rent, select 5 or 5.5 (some lenders are beginning to stress test at a higher level, so you may want to see both scenarios) and press calculate.

The Buy-to-Let Maximum Loan calculator is a great way to start – but it’s certainly not a definitive answer – and if it’s not the answer you’re looking for, our experts can review your full situation and advise on the most appropriate course of action, including products you might not previously have considered.

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