The most common mistake contractors make at remortgage is timing, and it’s entirely avoidable.
A fixed rate ends. You slip onto the standard variable rate. A few weeks later you get round to sorting it out — and by then your assignment has finished, the next hasn’t started, and you have no live contract to annualise.
A routine exercise becomes a difficult one, on an expensive rate, with narrowed options.
The fix is unglamorous: diarise six months before your fixed rate ends, not the end date itself.
Most lenders let you secure a new rate three to six months ahead. Starting while you hold a live contract with a reasonable unexpired term means being assessed at your strongest.
What Gets Reassessed in 2026
Product transfer
Staying with your existing lender on a new rate. In most cases there’s no fresh affordability assessment, no income reassessment and often no need to produce a contract at all.
Remortgage to a new lender
A full application, assessed from scratch. Income verification, credit search, valuation.
Additional borrowing
Triggers a full affordability assessment on the whole loan, not just the new element.
Significant term changes
Can prompt reassessment depending on the lender.
You may be able to borrow more than at purchase
Income multiples have risen, several lenders eased stress testing methodology, and your loan-to-value has usually fallen through capital repaid and price movement. All three point the same way.
Case Studies
Case Study 1: Owen – Caught Between Assignments, Bradford
Owen’s fixed rate expired while he was three weeks out of contract, leaving him on the standard variable rate.
A product transfer with his existing lender got him off it without a live contract. He remortgaged properly once his next assignment started.
Case Study 2: Nisha – Started Six Months Early, Reading
Nisha secured a new rate five months before her fix ended, while holding a contract with eight months to run.
She was assessed at her strongest rather than whenever she happened to get round to it.
Case Study 3: Greg – Capital Raising, Chelmsford
Greg wanted to raise capital for home improvements and assumed his borrowing was fixed at the level set when he bought.
Risen multiples, eased stress testing and a lower loan-to-value together produced a materially different answer.
Why Outcomes Differ
- Whether you hold a live contract at the point of application
- Product transfer versus full remortgage
- Whether additional borrowing is involved
- Current loan-to-value after capital repaid and price movement
- Payment record on the existing mortgage
FAQs
To move to a new lender, generally yes. A product transfer usually doesn’t require one
A transfer stays with your existing lender, usually without a fresh affordability assessment.
Quite possibly — multiples have risen and your loan-to-value has usually fallen.
Around six months before your current rate ends.
Generally not on a straight product transfer.
It depends on circumstances — it lowers monthly payments but usually increases total interest paid.
Set the reminder six months before your fixed rate ends, not on the day it does.
Think carefully before securing other debts against your home.
