The giftcard will be sent to customers with 30 days of the mortgage completing.
Craig McKinlay, mortgage director at Halifax, said: “Halifax is committed to helping Britain prosper and ensuring we provide competitive products and great service to our customers.
“We recognise the extra costs included in buying a home or moving house can mount up.
“That is why we’re helping first-time buyers and homemovers with a £500 giftcard when they complete their mortgage with us, giving them the opportunity to spend it on all those home good people typically need for their new home.”