Flexible Mortgages

A flexible mortgage could be worth considering if you want a home loan that gives you more control over your repayments.

In this guide, we explain how flexible mortgages work, the features they may include, how flexible mortgage rates compare, and how to find suitable mortgage deals for your needs.

What is a flexible mortgage?

A flexible mortgage is a type of mortgage that lets borrowers manage their repayments using a range of features and payment options, within the limits set by the lender.

Instead of being tied to fixed monthly payments with little room for adjustment, flexible mortgages may offer options such as overpayments, underpayments, payment holidays, or access to funds that have previously been overpaid.

The purpose of a flexible home loan is to give borrowers more control over their mortgage. This can be especially useful for people with changing income or those who want the option to repay their mortgage more quickly.

What features do these mortgages offer?

This type of mortgage can offer a variety of features, depending on the lender and the product. Some flexible mortgage loans include all of the options below, while others may only provide selected features.

Overpayments

Most flexible mortgages allow you to make overpayments. This can help reduce the total interest you pay and may shorten your mortgage term.

Some lenders limit how much you can overpay each year without triggering early repayment charges (ERCs), while others allow unlimited overpayments.

Underpayments

If you have previously overpaid your mortgage, some lenders may let you reduce your future monthly payments for a temporary period. This can give you extra flexibility when your finances are under pressure.

Payment holidays

A payment holiday allows you to pause your monthly repayments for a short period.

This is usually only available if you have built up enough overpayments in advance, or in certain agreed circumstances. Interest will often continue to build during the payment holiday period.

Borrow back facility

Some flexible mortgage loans allow you to borrow back previous overpayments.

For example, if you have overpaid your mortgage balance by several thousand pounds, you may be able to withdraw part of those funds later.

Offset facilities

Offset flexible mortgages work by linking your savings account to your mortgage balance. Instead of earning interest on your savings, the balance is used to reduce the amount of mortgage interest you pay.

This could help lower your monthly payments or shorten your mortgage term.

Daily interest calculation

Some flexible rate mortgages calculate interest daily rather than monthly. This means overpayments can begin reducing your interest charges more quickly.

Mortgage porting

Mortgage porting allows you to move your mortgage to a new property. Some lenders offer this without an early repayment charge (ERC) or a change to the existing terms, provided the new property meets their valuation and lending criteria.

Are flexible mortgages worth it?

Flexible mortgages can be useful if you want greater repayment flexibility or more control over how you manage your mortgage.

This type of home loan is often popular with:

• Self-employed borrowers
• People with changing income
• Borrowers who receive bonuses, commission, or irregular income
• Homeowners who want to repay their mortgage more quickly
• People who may need occasional payment flexibility

However, flexible mortgage rates can sometimes be higher than standard mortgage products because of the extra features included. Some lenders also limit flexible features to tracker mortgages only.

For some borrowers, paying a slightly higher flexible mortgage rate may still be worthwhile if they make regular use of the available flexibility features.

How to get a flexible mortgage

Applying for a flexible mortgage is usually similar to applying for a standard mortgage. However, there are some important differences, as the level of flexibility can vary significantly between lenders.

Assess the type of flexibility you need

Flexible mortgages can include a range of features, but not every lender offers the same options. Before comparing deals, it is useful to decide which features matter most to you.

This can help narrow down the lenders and products that are most likely to suit your needs.

Speak with a broker

An experienced mortgage broker can help you identify lenders that offer the specific flexibility you are looking for. This may be especially useful if you need an offset flexible mortgage or your circumstances are more complex.

A broker can also compare flexible mortgage rates across the wider market and help you decide whether the extra flexibility is worth any additional cost.

Submit your application

Once you have chosen a lender with terms that suit your needs, the application process will usually include affordability checks, a credit assessment, and a property valuation.

If your application is approved, the lender will issue a formal mortgage offer. This will set out the interest rate, repayment structure, and any flexible features included.

Flexible mortgage lenders in the UK

Here are some examples of well-known UK high street lenders that may offer flexible mortgage features to certain applicants.

NatWest

NatWest allows fee-free mortgage overpayments of up to 20% each year on selected fixed and tracker mortgages. Some of its home loans may also offer payment holidays.

NatWest’s flexible mortgage options may allow underpayments if you have previously made overpayments.

Santander

Santander offers flexible mortgage features, including overpayment and offset options.

Its flexible offset mortgage tracks the base rate and links your savings accounts to your mortgage balance, which can help reduce the amount of interest you pay.

Royal Bank of Scotland (RBS)

Royal Bank of Scotland offers flexible mortgages and offset flexible mortgage products that let you offset savings against your mortgage balance.

RBS flexible mortgage features may include lump sum or regular overpayments, as well as payment holidays.

Some lenders also provide elements of mortgage flexibility without describing their products as “flexible mortgages”. This is why it is important to compare the wider market carefully.

Flexible buy-to-let mortgages

Flexible buy-to-let (BTL) mortgages are available from some lenders, although there may be fewer options than with standard flexible residential mortgages.

Features such as overpayments, offset facilities, or repayment flexibility can be useful for landlords who manage changing rental income or several properties.

However, flexible buy-to-let mortgages may involve:

Higher interest rates
Lower maximum loan-to-values (LTVs)
Extra affordability checks or rental stress testing

Because lender criteria for flexible BTL products can differ widely, speaking with a specialist broker can be a useful way to find suitable buy-to-let lenders with competitive rates.

Frequently Asked Questions