Rolling onto SVR — one-year cost vs a product transfer

When a fixed-rate (or other initial) deal ends, many UK mortgages move onto the lender’s standard variable rate — often shortened to SVR, and sometimes called a reversion rate — unless a new product is already lined up. Rolling onto SVR is not a product you choose; it is what happens if nothing replaces the deal that has just finished.

This guide is for the high-intent moment after (or immediately before) that end date: what roughly one year on an elevated reversion rate can cost compared with booking a product transfer with the same lender. It uses our shared site EXAMPLE house and a clearly labelled EXAMPLE SVR of 7.49%. That figure is for illustration only. It is not a live market rate and not your lender’s rate. You must use the SVR (or other reversion rate) stated in your own offer or confirmed in writing by your lender.

For the last-eight-weeks checklist and document list, see Fixed rate ending — what to do next. For folding fees, cashback and rate gaps into one horizon, use the Remortgage true cost calculator.

What “rolling onto SVR” means

An SVR is set by the lender. It can move up or down during the time you are on it. Monthly repayments are recalculated when the rate changes. There is usually no new fixed end date — you stay on the reversion rate until you take a new deal, remortgage elsewhere, overpay to clear the loan, or otherwise leave.

Households often notice SVR first as a payment jump. The second issue is duration. A few weeks of reversion rate while legal work finishes is one arithmetic problem. Twelve months of the same gap is another. The worked EXAMPLE below focuses on that one-year frame so the sterling difference is easy to see beside a product-transfer quote.

Independent consumer guidance from MoneyHelper stresses checking costs and comparing your current lender’s retention options with other products before you switch. The Financial Conduct Authority (FCA) notes that many borrowers can arrange a new deal so it starts when the existing one ends, which helps limit time on a reversion rate. Those sources explain process and protections. They are not a substitute for your own lender documents.

The EXAMPLE house (same case as other guides)

Figures below use our shared site EXAMPLE house. Every rate that is not a live market price is labelled EXAMPLE.

• Outstanding balance: £185,000
• Remaining term: 22 years
• Current fixed rate (just ending in this scenario): EXAMPLE 4.19%
• EXAMPLE SVR after the fix: 7.49%
• Product transfer rate: EXAMPLE 4.39%
• Transfer fee in this EXAMPLE: £0
• EXAMPLE ERC if you left early at 2% of balance: £3,700 (not applied in the main one-year comparison below, which assumes the fix has already ended)

Important: 7.49% is an EXAMPLE SVR for illustration. It is not a live market rate and not your lender’s rate. Lenders publish different SVRs; yours may be higher or lower, and it can change while you are on it. Always substitute the figure from your offer, Key Facts Illustration, or a written confirmation from your lender.

EXAMPLE: monthly payments on fix, SVR and transfer

On a capital-and-interest repayment basis, with the EXAMPLE balance and term held constant for a simple comparison:

• Monthly repayment at EXAMPLE 4.19% (old fix): about £1,074
• Monthly repayment at EXAMPLE 4.39% (product transfer): about £1,094
• Monthly repayment at the EXAMPLE 7.49% SVR: about £1,432

Against the old fix, the EXAMPLE SVR is about £358 a month higher. The EXAMPLE product transfer is about £20 a month higher than the old fix — a small step up compared with the reversion jump. Against each other, EXAMPLE SVR versus EXAMPLE transfer is about £338 a month (£1,432 − £1,094).

Those monthly figures ignore further capital repayment reducing the balance month by month, and they ignore any later change in the SVR. They are a planning lens, not a redemption statement.

One-year EXAMPLE: roll onto SVR vs book a product transfer

Hold the EXAMPLE house constant for twelve months after the fix ends. Path A does nothing and pays the EXAMPLE 7.49% SVR for the year. Path B books a product transfer at EXAMPLE 4.39% with a £0 transfer fee in this case, starting when the old deal ends (or as soon as the lender can put it in place).

• Path A — twelve months on EXAMPLE SVR: about 12 × £1,432 = £17,184 in repayments
• Path B — twelve months on EXAMPLE product transfer: about 12 × £1,094 = £13,128 in repayments, plus £0 EXAMPLE transfer fee
• Extra cost of Path A versus Path B over one year: about £4,056 (roughly 12 × £338)

Against the old EXAMPLE 4.19% fix for context, twelve months on EXAMPLE SVR costs about £4,295 more in repayments; twelve months on the EXAMPLE transfer costs about £240 more. The large gap is between SVR and transfer — not between transfer and the deal that just ended.

In this EXAMPLE, booking the transfer therefore avoids roughly four thousand pounds of extra repayments over a single year relative to staying on the labelled SVR, before any further SVR change and before capital reduction. Your numbers will differ. Substitute your balance, term, transfer rate, transfer fee and — critically — your own lender’s SVR.

A shorter SVR gap still adds up. Three months on the EXAMPLE SVR instead of the EXAMPLE transfer is about 3 × £338 ≈ £1,014 of extra repayments. Eight weeks (~two months) is about £676. That is why lining up a start date with the end of the fix matters even when you are not planning to spend a full year on reversion.

Product transfer timing, fees and ERCs

A product transfer (retention deal) keeps you with the same lender on a new product. Legal work is often lighter than a full remortgage to a new lender, which can help when the calendar is tight. Criteria, fees and available rates still vary by lender and by case.

The one-year EXAMPLE above assumes the fixed deal has already ended, so the EXAMPLE 2% ERC of £3,700 is not charged on Path B. If you were still inside an ERC window and left early for a new-lender remortgage, that charge would need to sit in the true-cost comparison before any rate gap. Fees and ERCs often decide the outcome; start there before hunting headline rates. Put your own paperwork through the Remortgage true cost calculator.

Some lenders will let you reserve or apply for a retention product weeks or months before the fix ends, with a start date that matches the end date. Others work on shorter windows. Ask for written quotes, fee schedules and the proposed start date. Prefer figures you can re-check against an illustration.

Use your own lender’s SVR — not the EXAMPLE

Before you treat any sterling gap as meaningful for your case:

• Find the reversion / SVR wording in your mortgage offer or Key Facts Illustration, or ask the lender for the rate that would apply after the deal ends
• Confirm whether that rate can change while you are on it
• Note your outstanding balance, remaining term and exact deal end date
• Request product-transfer quotes and any transfer or booking fees in writing
• Re-run the one-year arithmetic with your SVR and transfer rate — not 7.49% and 4.39%

The EXAMPLE 7.49% figure exists so this site’s guides stay consistent with each other. It is deliberately labelled so it cannot be mistaken for a live rate feed. If your lender’s SVR is lower, the one-year gap shrinks. If it is higher, the gap grows. Either way, the method is the same: monthly difference × months on SVR, then compare with the cost of the transfer path including fees.

For the practical checklist in the final eight weeks — documents, week-by-week actions and SVR risk if nothing is booked — read Fixed rate ending — what to do next.

Sources and further reading

We write in our own words. For independent consumer guidance, see MoneyHelper on remortgaging and the FCA’s consumer note on mortgage support as interest rates rise. Those pages explain process and consumer protections. They are not a substitute for reading your own lender documents.

Disclaimer

This guide and the worked EXAMPLE are illustrative only. They are not personalised financial advice. They are not a credit or mortgage offer. They are not an FCA-regulated recommendation. The EXAMPLE SVR of 7.49% is not a live market rate. Check your lender offer (and Key Facts Illustration) for ERC, fees, reversion rate and product terms. Rates and charges change. Availability of product transfers is lender-specific.

Next steps

Put your own balance, term, SVR and transfer quote into the Remortgage true cost calculator, then work the final weeks with Fixed rate ending — what to do next. Use figures from your paperwork. This site helps you organise the numbers; it does not tell you which deal to take.