Mortgage rates attract the headlines, but the rate displayed at the top of a product table is only one part of the borrowing decision.
The product must also fit the applicant, property, deposit, rental calculation and future plans. A lower rate accompanied by a substantial arrangement fee may cost more than a higher-rate alternative, while an attractive product is of little value if the lender will not accept the property or the borrower’s circumstances.
This week’s mortgage review should therefore begin with two questions: what has happened to pricing, and has anything changed within lender criteria?
Bank Rate remains at 3.75%
The Bank of England maintained Bank Rate at 3.75% at its September 2026 meeting.
This provides useful context, but it does not mean every mortgage rate will remain unchanged. Fixed mortgage pricing is influenced by lenders’ funding costs, swap rates, competition, product demand and expectations about future interest rates.
A lender can reduce, increase or withdraw a fixed-rate product without waiting for the next Bank Rate decision.
Borrowers should therefore avoid assuming that a Bank Rate hold guarantees that the mortgage they reviewed last week will still be available on the same terms today.
Check the latest available examples
NetRent Mortgage Solutions publishes examples covering personal and limited-company buy-to-let, HMOs, residential purchases and remortgages, expat and foreign-national cases, commercial mortgages and bridging finance.
You can view the current examples on our Latest Mortgage Rates page.
These examples provide a useful starting point, but they are not personalised quotations or guarantees of acceptance. Mortgage products can be changed or withdrawn, and the rate available to an individual applicant will depend on the complete case.
The page also illustrates why comparing products by rate alone can be misleading. A lower-rate buy-to-let mortgage may include a percentage-based arrangement fee, while a higher-rate option may have no product fee.
On a substantial mortgage, that percentage fee can represent thousands of pounds.
Compare the complete product cost
When reviewing a mortgage or remortgage, check:
- Initial interest rate
- Fixed or variable period
- Product or arrangement fee
- Valuation and legal costs
- Cashback or other incentives
- Early repayment charges
- Mortgage term
- Monthly payment
- Reversion rate
- Total cost over the intended deal period
A landlord planning to sell or refinance within two years may reach a different conclusion from one intending to retain the property for the complete five-year fixed period.
Fees added to the mortgage also become part of the borrowing and can attract interest.
The correct comparison depends on the loan size, intended holding period and likely exit—not simply the percentage printed beside the product.
Has your loan-to-value changed?
Mortgage pricing is commonly divided into loan-to-value bands.
A landlord who expected a property to be worth £250,000 may plan a 75% mortgage of £187,500. If the lender’s valuation is lower, the required loan-to-value could increase and the selected product may no longer be available.
Conversely, a higher valuation or reduced mortgage balance could move the application into a lower loan-to-value band with different pricing.
Before relying on a product, check:
- The current mortgage balance.
- A realistic property value.
- The borrowing required.
- The resulting loan-to-value.
- Whether fees will be paid separately or added to the loan.
An estate-agent appraisal or online estimate is not a substitute for the lender’s valuation.
Will the rent support the mortgage?
Buy-to-let lenders normally assess whether the expected rent supports the requested borrowing under their rental coverage calculation.
The calculation can vary according to:
- The lender
- Product term
- Interest rate used for stress testing
- Applicant’s tax position
- Personal or limited-company ownership
- Property type
- Confirmed market rent
A mortgage may appear affordable based on the actual monthly payment but still fail the lender’s stress test.
For portfolio landlords, the lender may also examine the wider portfolio. Property values, mortgage balances, rents, ownership structures and overall gearing can all influence the decision.
Current pricing should therefore be considered alongside the rent and the lender’s underwriting method.
Check which property types the lender accepts
Rate tables do not always reveal important property restrictions.
Establish whether the lender will consider:
- HMOs and multi-let properties
- Flats above commercial premises
- Short leases
- Non-standard construction
- Holiday lets
- Ex-local-authority properties
- High-rise flats
- Properties requiring refurbishment
- Mixed-use buildings
- Properties owned through limited companies
A competitive standard buy-to-let rate may not apply to a larger HMO, unusual flat or semi-commercial building.
Accurately describing the property before applying can prevent wasted valuation fees and delays.
Applicant criteria can be equally important
Lender choice may also be affected by:
- Landlord experience
- Portfolio size
- Employment status
- Length of self-employment
- Age and intended mortgage term
- Previous credit problems
- Personal income
- Company structure
- Deposit source
- Existing financial commitments
- Residency or visa status
Recent changes to mortgage rules can give lenders additional flexibility in some circumstances, but lenders are not required to apply every available flexibility in the same way.
One lender may accept a case that falls outside another lender’s policy. That does not mean criteria no longer matter; it makes accurate lender selection even more important.
Product transfer or wider-market remortgage?
Borrowers approaching the end of an existing deal should compare any product transfer offered by the current lender with remortgage options across the wider market.
A product transfer may involve less documentation and no change of lender. A remortgage could provide different rates, terms or additional-borrowing options.
The comparison should include:
- The complete product cost
- Valuation requirements
- Legal work
- Affordability assessment
- Early repayment charges
- Available borrowing
- Processing time
- Future flexibility
Begin the review three to six months before the current product ends. This provides time to resolve document, valuation or property issues without being forced into a last-minute decision.
Check the figures before acting
This week’s lowest rate will not necessarily be next week’s lowest rate—and it may not be the best product for your circumstances.
Start with the current borrowing, property, income, rent and future plan. Then compare products that genuinely fit those facts.
NetRent Mortgage Solutions works with DNA Financial Solutions to help landlords, homeowners and property investors examine rates, fees and lender criteria across the market.
View selected current examples on our Latest Mortgage Rates page, or contact NetRent to discuss your requirements:
Telephone: 01352 721300
Email: mortgages@netrent.co.uk
NetRent does not provide legal advice. This article represents our general understanding of the mortgage market and is provided for information only.
Mortgage products, rates, fees, valuations, affordability calculations and lender criteria can change or be withdrawn without notice. Appropriate mortgage, financial, legal and tax advice should be obtained before proceeding.