First-time buyers are being offered £500 by Halifax.
The offer is also available to homemovers, buy-to-let borrowers and customers remortgaging from their current lender on qualifying mortgages.
Customers must apply between 3 January and 26 March 2017 and complete on a qualifying mortgage to be eligible for the £500 cashback.
The offer excludes product transfers, further advances and homemover applications through Halifax Intermediaries.
£500 cashback will be paid automatically on completion, sent to the conveyancer with the completion funds.
In addition to the cashback, eligible borrowers will also have the assistance of a dedicated mortgage adviser.
“Buying a property can be an expensive time. People can often underestimate the extra things they need when they get into their new homes,” said Chris Gowland, mortgages director at Halifax.
“A bit of extra cash can help ease the financial burden during what’s often a stressful time. Homemovers and those remortgaging can also benefit from a New Year boost to bank balances through the £500 cashback,” he added.