Mortgage costs rose sharply in 2023 as higher inflation prompted the Bank of England to raise the Bank Rate. That affected tracker, variable and new fixed-rate mortgage pricing. Many fixed-rate borrowers were protected at first, but faced higher payments when their deals ended.
This article looks at why mortgage costs rose, how the market changed, and what borrowers could review before choosing their next step.
Why Mortgage Costs Rose in 2023
The rising costs of mortgages in 2023 were not caused by one event. They came from a chain of economic pressure.
Inflation had remained high. The Bank of England responded by raising Bank Rate to help bring inflation closer to target. In August 2023, Bank Rate reached 5.25% after the Monetary Policy Committee voted for another rise. This was the 14th consecutive increase in the cycle.
For mortgage borrowers, this mattered because Bank Rate influences the wider cost of borrowing. Lenders price mortgage products using several factors, including swap rates, funding costs, risk, loan-to-value, borrower profile and expected future interest rates.
When funding becomes more expensive, mortgage rates can rise. That does not always happen in a straight line, but the direction of travel became clear during 2022 and 2023.
A mortgage is never just a rate. It is a long-term promise made in a market that can change faster than household income.
Why Fixed-Rate Borrowers Felt the Pressure Later
Many UK borrowers were on fixed-rate mortgages when interest rates began rising. This delayed the impact for some households.
The Office for National Statistics reported that more than 1.4 million UK households had fixed-term mortgages due for renewal in 2023. More than half were coming off interest rates below 2%.
That created a payment shock. A borrower who fixed at a low rate in 2020 or 2021 could find that their next deal was priced in a very different market.
The issue was not only whether rates had risen. It was the size of the gap between the old rate and the new rate.
For some households, the mortgage went from manageable to the main pressure on monthly income.
How Tracker and Variable Rate Borrowers Were Affected
Tracker and standard variable rate borrowers felt the changes faster.
A tracker mortgage usually follows a rate linked to the Bank of England base rate. When Bank Rate rises, monthly repayments can rise too. A standard variable rate can also change, although the lender controls that rate.
This meant some borrowers saw higher payments before fixed-rate borrowers did.
For households already dealing with food, energy and wider living costs, the mortgage increase became part of a broader affordability squeeze.
The Bank of England’s household research found that mortgagors were adjusting spending in response to higher mortgage payments. It found that for a £100 monthly increase in mortgage payments, affected borrowers cut monthly spending by around £50.
That matters for the wider economy. When mortgage payments rise, money is often pulled away from other spending.
Persistence in Pursuit: Seeing the job through
Governor Andrew Bailey stressed the importance of staying committed to their strategy, stating that it is “crucial we see the job through.” Deputy Governor Dave Ramsden supported this view, highlighting concerns about persistently high inflation. Despite recent declines, longer-term pressures remain significant.
The Market Impact: Fewer Easy Decisions
The 2023 mortgage market made decisions harder for buyers, movers and remortgage clients.
First-time buyers had to consider whether higher repayments reduced the amount they could borrow. Home movers had to think carefully about porting, selling, buying again, or waiting. Remortgage clients had to decide whether to fix, track, repay, extend the term, or review product transfer options.
Landlords also faced pressure. Buy-to-let affordability depends heavily on rental income, stress rates, tax position and lender criteria. Higher rates made some cases harder to place, especially where rental cover was tight.
Borrowers researching their next step may find it useful to start with residential mortgage advice or review their options through remortgage advice.
What Higher Mortgage Costs Changed in Affordability
Affordability is not only about the interest rate shown on a product.
Lenders may assess:
- Income and committed expenditure
- Credit commitments
- Deposit or equity
- Loan-to-value
- Mortgage term
- Dependants and household costs
- Employment type
- Property type
- Product fees
- Stress testing and future payment risk
A lower headline rate may not always mean the lowest overall cost. Fees, incentives, valuation costs, repayment charges and term length can all affect the real outcome.
For example, a product with a lower rate but a high fee may not suit every borrower. The answer depends on loan size, term, repayment plan and how long the borrower expects to keep the mortgage.
Borrowers can use a mortgage calculator to estimate monthly payments, then check borrowing potential through the residential affordability calculator.
Arrears, Stress and the Need to Act Early
Higher mortgage costs do not affect every household in the same way. Some borrowers have savings, stable income or smaller loans. Others have less room to absorb an increase.
UK Finance reported that arrears increased in late 2023, driven by the combined impact of cost-of-living pressures and higher interest rates. It also said lenders continued to offer support and that possession remained a last resort.
This is where timing matters.
Borrowers should not wait until a payment has already been missed before reviewing options. Speaking to a lender or adviser early can create more room to assess the position.
Possible options may include a product transfer, a remortgage, a term extension, temporary support, switching the repayment type for a period, or reviewing household commitments. Not every option will suit every borrower.
What Borrowers Could Review Before a Mortgage Deal Ends
A mortgage review should begin before the current deal ends. This gives time to compare options and avoid moving onto a standard variable rate without understanding the cost.
Borrowers may want to review:
- When the current rate ends
- Current balance and remaining term
- Early repayment charges
- Current property value
- Loan-to-value position
- Income and credit commitments
- Whether future plans affect the product choice
- Whether protection cover still fits the mortgage
A borrower who expects to move soon may think differently from someone staying long term. A borrower with variable income may need a different assessment from someone with fixed employment income.
Mortgage advice is useful because it brings these details together. It can also help borrowers understand lender criteria, not just product rates.
People who want to compare adviser options can use Connect Experts to find a mortgage adviser or search for a mortgage rate ending adviser.
The Buy-to-Let Question
The rising costs of mortgages also affected landlords.
Buy-to-let mortgages are usually assessed against expected rental income. Higher rates can make the rental stress calculation harder to meet. This may affect loan size, product choice, ownership structure and refinancing plans.
A landlord may need to assess whether the property remains viable at the new cost level. Rental income, tax, maintenance, void periods, insurance and future repairs all matter.
Some landlords may also consider limited-company buy-to-let options, portfolio finance, or a different repayment strategy. These areas can involve tax and legal points, so advice should be taken where needed.
Landlords can read more about buy-to-let mortgage advice.
Protection Became Part of the Cost Conversation
When mortgage payments rise, protection can feel like another cost. Yet this is also when the conversation about protection becomes more important.
A mortgage is often the largest financial commitment a household carries. If illness, injury, loss of income or death affects the household, the mortgage may become harder to maintain.
Protection does not remove market risk. It helps households think about personal risk.
Borrowers may want to review whether life cover, critical illness cover, income protection, or buildings and contents insurance still match their mortgage and household circumstances.
Read more about mortgage protection insurance.
