Buy to Let Top Slicing calculator

How much could your customer borrow?

Need help with the Top Slicing calculator?

Click here to read the help page with handy tips for each section.

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Get an instant estimate of what your customer could borrow with a Buy to Let Top Slicing mortgage.

This is based on their personal income, financial commitments and the rental income of this Buy to Let.

During the application process we’ll ask for a more detailed breakdown of their income and outgoings, this could change the amount we lend. 

When using the calculator for contractors please enter 80% of the annualised gross contracting income, in line with our lending criteria.

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Applicant information and finances

Residential Mortgage details

Existing Buy to Let properties

New Buy to Let details

Reference number

Please note the minimum household income for a Buy to Let Top Slicing mortgage is £40,000.
We will not normally lend to applicants who currently have unsecured debt which exceeds half their gross annual assessable income, even if it’ll be repaid in whole, or part, before completion. If the case has a lower debt to income ratio, it may still be sent for individual underwriter assessment. We’ll exclude student debt from this calculation.

This calculator provides an indication only. It is not a legally binding mortgage offer and places Bank of Ireland UK at no obligation to provide your customer with a mortgage.

Get an instant estimate of what your customer could borrow with a Buy to Let Top Slicing mortgage.

This is based on their personal income, financial commitments and the rental income of this Buy to Let.

During the application process we’ll ask for a more detailed breakdown of their income and outgoings, this could change the amount we lend. 

When using the calculator for contractors please enter 80% of the annualised gross contracting income, in line with our lending criteria.

Need help with the Top Slicing calculator?

Click here to read the help page with handy tips for each section.

Find out more

Issues for Apple users

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You currently can’t apply if you’re using an iPad or iPhone with iOS 12.2 or higher. We’re sorry for any inconvenience this causes - please use another device.