Can you remortgage early?

Remortgaging early means switching to a new mortgage deal before your current fixed, tracker, or discount rate period ends. Most mortgage deals run for 2 or 5 years, and leaving during that period typically triggers an early repayment charge.

This is different from remortgaging at the end of your deal, which you can do without penalty. When your introductory rate expires, your lender moves you onto their standard variable rate (SVR), which is almost always higher. At that point, you are free to switch to any new deal without charges.

People consider remortgaging early for several reasons:

• Interest rates have fallen: The savings from a lower rate could outweigh the ERC
• Personal circumstances have changed: Divorce, inheritance, or needing to release equity from your property
• Better deals are available: Your credit score or property value may have improved since you last borrowed
• You want to fix for longer: Moving from a 2-year to a 5-year fix for payment certainty

Whether early remortgaging makes sense depends entirely on the maths. The ERC is a known cost. The question is whether you save more than that amount by switching to a cheaper rate over the remaining term.

An early repayment charge (ERC) is a fee your lender charges if you repay your mortgage in full, or overpay beyond your annual allowance, during the introductory deal period. ERCs are calculated as a percentage of your outstanding balance, not the original loan amount.

Most lenders structure ERCs on a sliding scale: the charge decreases each year you are into the deal. This means leaving in year one costs more than leaving in year four of a five-year fix.

For 2-year fixed deals, ERCs are typically 2% in year one and 1% in year two. Some lenders charge flat rates rather than sliding scales, so always check your mortgage offer document for the exact terms.

Most lenders also allow you to overpay up to 10% of your outstanding balance each year without triggering the ERC. If you have been making overpayments, your outstanding balance will be lower, reducing the ERC amount. You can find your exact ERC terms in your original mortgage offer or by contacting your lender directly. A remortgage broker can also request this information on your behalf.

The decision to remortgage early comes down to a straightforward calculation: will the savings from a lower interest rate over the remaining term exceed the cost of the ERC plus any new arrangement fees? Here is how to think about it.

In this example, paying the ERC saves over £3,000 across three years. The bigger the rate difference and the longer your remaining mortgage term, the more likely it is to be worthwhile.

Situations where early remortgaging commonly makes sense:

• Large rate drops: If current remortgage rates are 1.5%+ below your existing deal, the maths often works in your favour
• Later in your deal: ERCs decrease each year, so switching in year 4 of a 5-year fix costs far less than switching in year 1
• Large mortgage balances: On a £400,000 mortgage, even a 0.5% rate reduction saves roughly £165 per month
• You need to borrow more: Adding to your mortgage through a new lender may offer better rates than a further advance from your current one

A remortgage calculator can help you estimate potential savings, but a broker will give you precise figures based on the actual deals available to you.

There are several situations where you can switch deals without paying an ERC, or reduce the charge significantly:

Product transfer with your current lender

A product transfer means moving to a new deal with your existing lender. Some lenders waive or reduce ERCs for internal switches. This option usually involves less paperwork and no legal fees, though the rate may not be the cheapest available across the whole market.

Porting your mortgage

If you are moving home, most lenders allow you to "port" your mortgage, transferring your current deal to the new property without triggering the ERC. You may need to borrow additional money on a separate rate to cover the price difference.

Using your overpayment allowance

Most mortgage deals allow you to overpay up to 10% of your outstanding balance each year without penalty. If you have received a lump sum, you can reduce your balance within this limit, then remortgage the lower amount when your deal expires.

Tracker or variable rate mortgages

Some tracker and discount variable rate mortgages have no ERCs at all, or shorter ERC periods than the rate period. Check your mortgage terms carefully, as this varies between lenders and products.

Waiting for the ERC-free window

Most lenders let you apply for a new mortgage 3 to 6 months before your current deal expires. You can lock in a new rate during this window, with the switch completing on the day your current deal ends, avoiding any ERC entirely. This is the most common approach for timing your remortgage.

Most UK mortgage lenders allow you to apply for a new deal 3 to 6 months before your current rate expires. Some lenders extend this to 9 months. During this period, the lender will make you a formal offer with a rate guarantee, meaning your rate is locked in even if market rates rise before completion.

The key dates to know:

• 6 months before expiry: Start researching deals and speaking to brokers
• 4 to 6 months before: Submit your application to lock in a rate
• 2 to 3 months before: Legal work and valuation completed
• Deal expiry date: New mortgage starts, old deal ends with no ERC

If rates drop after you have locked in, many brokers will resubmit your application to a better deal at no extra cost. If rates rise, your original offer stands. This gives you a useful safety net, effectively a free option on where rates go over the next few months.

The remortgage process typically takes 4 to 8 weeks from application to completion. Starting early gives you time to compare the full market and deal with any issues that arise during the application. Leaving it until the last minute risks falling onto your lender's SVR while you wait for a new deal to complete.

If you fixed your mortgage when rates were higher, you may now be paying significantly more than current market rates. The Bank of England base rate in July 2026 sits at 4.0%, and average 2-year fixed remortgage rates are around 4.2% to 4.6% at 75% LTV. If you locked in at 6% or above during the rate peaks of 2023 or early 2024, the gap could be substantial.

These savings need to be weighed against the ERC. On a £200,000 mortgage with a 2% ERC (£4,000) and a £999 arrangement fee, you would need roughly 30 months of savings at £199 per month to break even. If you have 3 or more years left on your mortgage term, the switch could be worthwhile.

The calculation becomes more attractive the later you are in your fixed period, because ERCs decrease each year. A borrower in year 4 of a 5-year fix with a 1% ERC (£2,000 on a £200,000 balance) would break even in roughly 15 months, making it a clearer win.

A broker can run these calculations precisely and factor in arrangement fees, valuation costs, and any cashback offers on new deals. Some lenders offer fee-free remortgage products or free legal work, which can tip the balance further in your favour.