The single product range will mean further advance rates are now tiered, based on loan-to-value and total loan size.
The change will also allow further advance borrowers to access two and four-year fixed rate products.
A spokesman for Halifax said the alignment of the two products would make the process easier and faster for customers while also giving greater certainty.
Ian Wilson, Halifax Intermediaries (pictured), said: “These changes are part of our continued efforts to improve our intermediary and customer proposition. This will make it even easier for intermediaries to do product transfers and further advances as only one application is required.
“Customers benefit from a competitive alternative to remortgaging, and intermediaries will still receive a full procuration fee for product transfers and remortgages.”