Residential Interest Only Mortgage Advice | Check your interest only mortgage options

Mortgage advice before choosing interest only

Interest only can look attractive because the monthly payments are usually lower than a repayment mortgage.

But the lower monthly payment is only part of the picture.

You still need to think about:

• How the mortgage will be repaid at the end of the term
• Whether your repayment strategy is acceptable to lenders
• Whether interest only is affordable now and in future
• Whether a part and part mortgage may be more suitable
• Whether your income and equity fit lender criteria
• Whether the mortgage term works with your future plans
• Whether you are comfortable with the risks
• What happens if your repayment plan does not perform as expected

This is why getting advice matters.

A mortgage broker like Your Mortgage Expert can help you look beyond the monthly payment and understand whether interest only is the route for your circumstances.

Speak to a mortgage adviser

Residential interest only mortgage advice at a glance

A residential interest only mortgage is a mortgage on your home where your monthly payments usually cover the interest, not the capital you borrowed.

This means your monthly payments may be lower than a repayment mortgage, but the mortgage balance will not usually reduce during the interest only period. You will need a clear repayment strategy to repay the capital at the end of the mortgage term.

A mortgage broker can help you understand whether interest only may be suitable, which lenders may consider your circumstances and whether repayment, part and part or another mortgage route may be more appropriate.

Key points to know:

• Your monthly payments usually cover interest only
• The capital still needs to be repaid later
• Lenders will usually want to see a credible repayment strategy
• Not all lenders offer residential interest only
• Criteria can depend on income, equity, loan to value, age and property value
• Part and part may be worth considering
• Advice is important before choosing interest only for lower monthly payments

Speak to a mortgage adviser

Mortgage advice before choosing interest only

Interest only can look attractive because the monthly payments are usually lower than a repayment mortgage.

But the lower monthly payment is only part of the picture.

You still need to think about:

• How the mortgage will be repaid at the end of the term
• Whether your repayment strategy is acceptable to lenders
• Whether interest only is affordable now and in future
• Whether a part and part mortgage may be more suitable
• Whether your income and equity fit lender criteria
• Whether the mortgage term works with your future plans
• Whether you are comfortable with the risks
• What happens if your repayment plan does not perform as expected

This is why getting advice matters.

A broker like Your Mortgage Expert can help you look beyond the monthly payment and understand whether interest only is the route for your circumstances.

Speak to a mortgage adviser

Why use a broker for a residential interest only mortgage?

Residential interest only mortgages can be more criteria driven than standard repayment mortgages.

Not every lender offers interest only. Those that do offer interest only will have specific rules around income, loan to value, property value, repayment strategy, age, mortgage term and affordability.

A mortgage broker can help you avoid guesswork.

We can help you:

• Understand whether interest only will be possible
• Check which lenders may consider your circumstances
• Compare interest only, repayment and part and part options
• Understand what repayment strategies lenders may accept
• Review whether your income and equity fit lender criteria
• Check how the mortgage would work over the full term
• Compare the overall cost, not just the monthly payment
• Prepare the documents lenders may need
• Avoid applying to unsuitable lenders
• Manage the process from enquiry through to completion

The aim is to help you understand whether interest only is realistic and suitable before you apply.

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Interest only vs repayment mortgage

A repayment mortgage means your monthly payment is designed to cover both interest and part of the capital. Over time, the mortgage balance should reduce, provided you keep up repayments.

An interest only mortgage works differently. The monthly payment is usually lower because you are not repaying the capital as part of your normal monthly payment.

This can help with cashflow, but it also means:

• Your mortgage balance may not reduce
• You need a credible repayment strategy
• You may pay more interest over the full term
• You need to be confident the capital can be repaid
• Your options may be more limited when remortgaging

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What is a part and part mortgage?

A part and part mortgage is where part of your mortgage is on a repayment basis and part is on an interest only basis.

This can sometimes be a middle ground.

It may reduce the monthly payment compared with a full repayment mortgage, while still allowing part of the mortgage balance to reduce over time.

A part and part mortgage may be worth discussing if:

• You want lower monthly payments than a full repayment mortgage
• You still want some of the mortgage balance to reduce
• You have a repayment strategy for the interest only part
• A lender will not offer the full amount on interest only
• You want a more balanced approach

We can help you compare full repayment, full interest only and part and part options.

Speak to a mortgage adviser

Why might you consider residential interest only?

There are several reasons you may want to explore interest only.

You may be thinking about it because:

• You want to reduce your monthly mortgage payments
• You have a clear repayment strategy
• You have strong equity in your property
• You receive bonuses or irregular income
• You expect money from investments, sale of assets or other sources in future
• You’re buying a higher value property
• You’re remortgaging and want to review payment options
• You want more flexibility with your monthly cashflow
• You’re considering a part and part mortgage
• You already have an interest only mortgage and need advice

Interest only is not automatically the only answer, even if it reduces the monthly payment.

The question is whether the mortgage is suitable, affordable and supported by a realistic repayment plan.

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What repayment strategies might lenders consider?

Lenders usually want to know how you plan to repay the mortgage capital at the end of the term.

But, lenders may accept different repayment strategies.

These could include, depending on the lender and your circumstances:

• Sale of the property
• Sale of another property
• Investments
• Pensions
• Savings
• Endowments
• Bonuses or other lump sums
• Downsizing
• Other assets

Not every lender will accept every repayment strategy. Some may require evidence, minimum equity, minimum income, minimum property value or a particular loan to value.

A mortgage broker can help you understand which repayment strategies are acceptable and which lenders may fit your plans.

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What will lenders look at?

Lenders can be more selective with residential interest only mortgages.

They will look at:

• Your income
• Your occupation
• Your age
• Your mortgage term
• The property value
• Your deposit or equity
• The loan to value
• Your credit history
• Your monthly commitments
• Your repayment strategy
• Evidence of your repayment plan
• Whether the mortgage is full interest only or part and part

Different lenders can assess the same situation in various ways.

This is one of the main reasons it can be worth speaking to a broker before applying.

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Can you remortgage onto interest only?

It may be possible to remortgage onto interest only, but this will depend on your circumstances and lender criteria.

You may want to explore this if:

• Your current mortgage deal is ending
• You want to reduce monthly payments
• You’ve a clear repayment strategy
• You’ve enough equity in your property
• You’re considering part and part
• Your income has changed
• You want to review your wider mortgage options

However, moving to interest only should not be seen simply as a way to make the monthly payment lower.

It needs to be considered carefully because the capital still needs to be repaid.

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Interest only with complex income

Interest only can become more detailed if your income is not straightforward.

This may apply if you are:

• Self employed
• A company director
• A contractor
• Paid through a CIS
• A freelancer
• Receiving bonuses or commission
• Receiving investment income
• Working more than one job
• Approaching retirement

Different lenders may assess income and repayment strategies in various ways.

We can help you understand which lenders are more suitable and what documents will be needed.

Speak to a mortgage adviser

Interest only in retirement

Some clients consider interest only because they are approaching retirement, already retired, or want to keep monthly payments lower in retirement.

This needs careful advice.

Residential interest only, retirement interest only and equity release are not the same thing. They work differently and may have different risks, criteria and long term implications.

We can help you understand which type of mortgage route is worth considering and whether specialist advice is needed.

Risks of residential interest only mortgages

Interest only mortgages can be useful in some circumstances, but they are not risk free.

Important risks include:

• Your mortgage balance may not reduce
• You still need to repay the capital at the end of the term
• Your repayment strategy may not perform as expected
• Property values can change
• You may have fewer options when remortgaging
• You may pay more interest over the full term
• You could face a shortfall if your repayment plan is not enough
• Your home may be at risk if you cannot repay the mortgage

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Why choose Your Mortgage Expert?

At Your Mortgage Expert, we help clients understand interest only mortgages clearly and carefully.

We know that residential interest only can be useful for some borrowers, but it needs to be handled properly. Our role is to explain the options, check lender criteria, review repayment strategies and help you understand the risks before you make a decision.

Clients choose us because we offer:

• Clear advice in plain English
  • Help comparing interest only, repayment and part and part mortgages
  • Support understanding lender criteria and repayment strategies
  • Advice for straightforward and more complex income
  • Access to a wide range of mortgage options
  • Guidance on documents and next steps
  • A managed process from enquiry through to completion
  • Friendly advice by phone, video or face to face

We are based in Salisbury and help clients locally and across the UK.

Thinking about an interest only mortgage?

You do not need to work out whether interest only is suitable on your own.

If you are buying, moving, remortgaging or reviewing an existing interest only mortgage, we can help you understand your options and what lenders may consider.

Speak to a mortgage adviser

Last updated: May 2026
Reviewed by: Your Mortgage Expert mortgage advice team
About this page: This page explains residential interest only mortgage advice, including repayment strategies, lender criteria, part and part mortgages and the risks to consider before applying.