Moving Up the Ladder (Porting & Top-Up)

A recent client success story

Updated: July 13th, 2026

Ported Mortgage Balance

£210,000

Top-Up Borrowing Required

£150,000

Total New Combined Mortgage

£360,000

1.

Client Profile

A growing family upsizing from a 2-bedroom home to a 4-bedroom house in the Suffolk countryside.

2.

The Challenge

They still had 3 years left on a low fixed-rate mortgage deal and did not want to trigger an expensive Early Repayment Charge (ERC) to move.

3.

The Figures

  • New Property Purchase Price: £480,000
  • Ported Mortgage Balance: £210,000 (Remaining at 2.5%)
  • Top-Up Borrowing Required: £150,000 (New rate at 4.40%)
  • Total New Combined Mortgage: £360,000
  • Overall LTV: 75%
  • Term: 25 years
  • Blended Monthly Repayment: Approx. £1,815

 

4.

The Outcome

JMB co-ordinated directly with their existing lender to seamlessly “port” their current cheap deal over to the new property while securing the extra top-up loan on a synchronized term, saving them thousands in exit fees.