Around 1.1 million people in the UK work on zero-hours contracts. The flexibility suits many workers, but the variable income creates a significant barrier to mortgage lending. Most automated systems see irregular payslips and decline immediately. A manual approach through the right lender changes the picture.\n\nWhy Lenders Struggle — Standard affordability models use a fixed monthly income figure multiplied by a term to calculate borrowing capacity. Zero-hours contracts produce payslips that vary month to month, sometimes dramatically. Lenders need certainty that you can sustain payments, and irregular income provides less certainty than a fixed salary.\n\nWhat Lenders Want to See — At least 12 months (ideally 24) of continuous employment on the same zero-hours contract. Regular payslips showing consistent working patterns. Bank statements demonstrating the income arrives regularly and is not erratic. An employer reference confirming the arrangement is ongoing with no planned changes.\n\nHow Income Is Calculated — Most lenders who accept zero-hours contracts calculate income using a 12-month average of gross earnings. If you earned 24,000 over the past 12 months, they use 24,000 as your annual income. Some lenders use the lower of the 6-month average or the 12-month average, protecting against recent declines. Others take the most recent 3 months and annualise them.\n\nLenders That Accept Zero-Hours — Halifax accepts zero-hours contract income with 12 months of history, calculated as a 12-month average. Nationwide considers applications on a case-by-case basis through manual underwriting. NatWest will consider zero-hours with at least 12 months at the same employer. Kensington Mortgages and Aldermore take a flexible approach through their specialist underwriting teams. Several building societies (Leeds, Yorkshire, Skipton) assess manually.\n\nBoosting Your Application — Maximise your hours in the months before applying. Save consistently (this demonstrates financial discipline and provides deposit funds). Minimise other debt commitments. A larger deposit (15-20%) signals lower risk and opens more lender doors. A co-applicant with a salaried income dramatically improves options.\n\nWhat If You Also Have a Second Income — Many zero-hours workers have multiple income streams (second zero-hours contract, self-employment, freelance work). Lenders that accept multiple income sources give you the best chance. Provide evidence for all income streams with the same level of documentation.