Find out how much you borrow

Contractor Mortgage Calculator

A calculator built for contractors, not permanent employees, that reflects how contract income is actually assessed by lender underwriters.

This calculator gives you a quick estimate of how much you could borrow based on your contract rate.

Not all lenders understand contracting. Some still apply permanent employment rules, which can restrict borrowing. Our calculator is based on contract-based underwriting, used by lenders who assess contractors properly.

How It Works

Contract applications are usually reviewed by underwriters rather than automated systems. Income is assessed using your contract value, not limited company accounts or umbrella payslips.

Most lenders calculate income using:

Day rate × 5 days × 46 or 48 weeks

For example:

£600 × 5 × 48 = £144,000 annualised income

This approach often allows contractors to borrow more realistically, including from day one of contracting and for both inside and outside IR35 roles.

What Affects Your Borrowing

Deposit size
Mortgage term
Existing commitments
Credit history
Dependants
Contract length and experience

Get Your Estimate

Answer a few simple questions to see your estimated borrowing range.

Before moving forward, it’s worth checking your credit file and electoral roll details, as these can affect the outcome.

Check what you can borrow