Choosing between UK mortgage types is not just about picking a fixed rate or chasing the lowest monthly payment. The right route depends on how you will repay the debt, how the interest rate may change, what the property is for, and whether a lender is likely to accept your income, deposit, credit profile and property.

This guide explains the main types of mortgage available in the UK, how they overlap, and the practical checks to make before you apply.

This information is for general guidance only and does not constitute mortgage advice. Your options depend on your circumstances, lender criteria, affordability checks, credit assessment, valuation and underwriting.

What are the main UK mortgage types in plain English?

The main UK mortgage types can be grouped into four simple questions:

1. How will you repay the mortgage? Usually repayment or interest-only.
2. How will the interest rate behave? Fixed, variable, tracker, discounted, capped or offset.
3. What is the mortgage for? Residential, remortgage, buy-to-let, shared ownership, self-build or another purpose.
4. Will a lender accept the case? This depends on affordability, deposit, credit history, property type, income evidence and the lender’s own criteria.

These categories overlap. For example, you might have:

• a five-year fixed-rate repayment residential mortgage
• a tracker interest-only buy-to-let mortgage
• an offset repayment mortgage
• a shared ownership fixed-rate mortgage

So, when someone asks “what type of mortgage should I get?”, the useful answer is rarely one word. It is about matching the repayment method, rate type, property purpose and lender criteria to your circumstances.

public guidance explains that borrowers should consider affordability, deposits, repayments and the wider costs of home ownership, not only the mortgage payment. GOV.UK also highlights that buying a home involves costs beyond the property price, including conveyancing, searches and moving costs.

Useful sources:

• public guidance: buying a home
• GOV.UK: preparing to buy a home
• public guidance: choosing a mortgage and getting advice

The main UK mortgage types at a glance

This table is a starting point, not a recommendation. The same product can be sensible for one borrower and unsuitable for another.

Why do some guides say there are three, six or more mortgage types?

Lists vary because they mix different categories.

One guide may describe mortgage types by repayment method, such as repayment and interest-only. Another may describe them by interest rate type, such as fixed, variable and tracker. Another may describe them by purpose, such as residential, buy-to-let and shared ownership.

For UK borrowers, the most practical way to think about mortgage types is:

• repayment structure: repayment or interest-only
• rate structure: fixed, variable, tracker, discounted, capped or offset
• property purpose: home, rental property, shared ownership, self-build or another use
• borrower situation: employed, self-employed, contractor, complex income, adverse credit, later-life borrowing or other specialist circumstances

That is why there is no single fixed number of UK mortgage types. The better question is: which combination fits your circumstances and risk tolerance?

Repayment mortgage versus interest-only mortgage

Repayment mortgage

With a repayment mortgage, your monthly payment includes interest and part of the capital. If payments are maintained for the full term and no changes are made that alter the outcome, the mortgage is designed to be repaid by the end of the term.

This is the most common structure for people buying a home to live in because it gives a clear route to reducing the debt over time.

Interest-only mortgage

With an interest-only mortgage, your monthly payment usually covers the interest only. The original capital still needs to be repaid at the end of the term.

Interest-only can make monthly payments lower than an equivalent repayment mortgage, but that does not make it safer or cheaper overall. The main question is whether you have a credible repayment strategy that the lender accepts.

Possible repayment strategies might include investments, sale of another property, downsizing or other assets, but lenders vary in what they will accept. You should not assume that a vague plan to sell the property or rely on future growth will be enough.

Quick comparison

Fixed-rate, variable-rate and tracker mortgages

Fixed-rate mortgages

A fixed-rate mortgage keeps the interest rate the same for a set period, such as two, three, five or ten years. Your payment is more predictable during the fixed period, which can help with budgeting.

The trade-off is flexibility. Fixed-rate deals often have early repayment charges during the fixed period. If you plan to move, repay a large lump sum or change the mortgage soon, you should check the early repayment charge and whether the product is portable.

Portability means the lender may allow you to move the mortgage product to another property, but it is not automatic. You would usually need a new application, affordability assessment and property approval.

Standard variable rate mortgages

A standard variable rate, often called an SVR, is a lender’s own variable rate. Borrowers often move onto it when a fixed, tracker or discounted deal ends unless they choose a new product.

SVRs can change and may be more expensive than other available products, although this depends on the lender and market conditions. Some borrowers stay on an SVR for flexibility, but it should be a conscious decision rather than something that happens by accident.

Tracker mortgages

A tracker mortgage usually follows a benchmark rate plus a set margin. If the tracked rate rises, your mortgage payment can rise. If it falls, your payment may fall, subject to the product terms.

Tracker mortgages can suit borrowers who are comfortable with payment movement and want a product linked to a benchmark, but they can be uncomfortable if your budget is tight.

Discounted variable mortgages

A discounted variable mortgage gives a discount from the lender’s variable rate for a set period. For example, the product might be the lender’s variable rate minus a certain percentage.

The discount can make the initial rate look attractive, but the lender’s underlying variable rate may still change. You need to understand both the discount and what it is discounted from.

Capped-rate mortgages

A capped-rate mortgage is a variable-rate mortgage with a maximum rate for a set period. This can give some protection against rate rises while still allowing movement below the cap.

Availability can be limited, and the rate, fees and terms need comparing carefully against fixed and tracker alternatives.

Offset mortgages: useful for the right borrower, but not magic

An offset mortgage links your savings to your mortgage balance for interest calculation. For example, if you have a mortgage balance of £250,000 and linked savings of £30,000, interest may be calculated on the net balance of £220,000, depending on the product terms.

The savings usually remain accessible, but you may not earn separate savings interest on the offset amount. Whether that is worthwhile depends on the mortgage rate, savings balance, tax position, fees and how long you expect to keep the savings in the offset account.

Offset mortgages can be useful for borrowers who:

• keep meaningful cash savings
• want access to those savings
• have irregular income or bonuses
• are disciplined enough not to spend the offset savings without a plan
• want flexibility rather than simply the lowest headline rate

They may be less useful if your savings balance is small, likely to be spent soon, or if the offset mortgage has a materially higher rate or fee than alternatives.

Residential, remortgage and buy-to-let mortgages

Residential mortgages

A residential mortgage is for a property you intend to live in. Lenders usually assess your income, outgoings, credit commitments, deposit, credit history and the property.

For a residential mortgage, affordability is central. A lender may consider basic salary, overtime, bonus, commission, self-employed income, pension income or other sources differently depending on its criteria.

Remortgages and product transfers

A remortgage usually means moving your mortgage to a new lender. A product transfer usually means choosing a new deal with your existing lender.

A remortgage may allow you to raise money, change term, change repayment method or move lender, but it can involve underwriting, valuation and legal work. A product transfer may be simpler, but it may not solve every issue and may not be the best fit in every case.

Before deciding, compare:

• current balance and property value
• loan-to-value band
• new rate and fees
• legal and valuation costs
• early repayment charges
• whether you need to borrow more
• whether your income or credit profile has changed
• how long you plan to keep the mortgage

Buy-to-let mortgages

A buy-to-let mortgage is for a property you intend to rent out. Lenders usually look at expected rental income, deposit, property type and your wider profile. Some lenders also apply different rules for portfolio landlords, limited company applications, houses in multiple occupation and holiday lets.

GOV.UK’s renting guidance is a useful starting point for understanding landlord responsibilities, although it is not mortgage advice: GOV.UK: renting out a property.

Buy-to-let decisions can also involve tax and legal questions. A mortgage adviser can help with the mortgage, but you may also need tax or legal advice depending on the situation.

Shared ownership and other specialist routes

Shared ownership lets you buy a share of a property and pay rent on the remaining share. The mortgage is only part of the cost, because you also need to consider rent, service charge, lease terms and future staircasing options.

You can read the government’s overview here: GOV.UK: shared ownership scheme.

Specialist mortgage routes may be relevant if you have:

• self-employed income
• contractor or freelance income
• recent job change
• multiple income sources
• adverse credit history
• a small deposit
• gifted deposit or complex deposit source
• non-standard property construction
• a flat above commercial premises
• high-rise or cladding considerations
• later-life borrowing needs
• foreign income or residency complexity

Specialist does not automatically mean impossible, but it usually means the lender fit and evidence matter more.

Are Islamic home finance products the same as 0% mortgages?

No. Islamic home finance is not the same as a standard mortgage with a 0% interest rate.

Some providers offer Sharia-compliant home finance structures where the arrangement is not priced as conventional interest. The customer may make payments under a different structure, such as rent or acquisition payments, depending on the product.

The key point for borrowers is that these products still have costs, criteria and affordability checks. They are not free borrowing, and they are not suitable for everyone. If this is important to you, speak to a provider or adviser with experience in Islamic home finance and check the product terms carefully.

Can gambling affect a mortgage application?

It can, depending on the pattern and the lender’s view.

Occasional, affordable gambling transactions may not automatically stop a mortgage application. However, frequent gambling, large payments, use of overdrafts, missed bills, payday lending, returned payments or signs of financial pressure may raise questions about affordability and money management.

Lenders may review bank statements as part of underwriting. They are usually looking for whether your income, spending and commitments support the application. If gambling transactions are present, the practical question is whether they make the case look less affordable or less stable.

Before applying, it can be sensible to review your bank statements honestly and speak to an adviser if there is anything that may need explaining.

How mortgage type affects the advice process

A mortgage adviser should not start and end with the cheapest-looking rate. A useful recommendation needs to consider your circumstances, objectives and the risks of the product.

The Financial Conduct Authority sets the regulatory framework for mortgage firms and consumer protection. You can find general consumer information here: FCA: consumers.

In practice, the advice process usually looks at:

• what you are buying or refinancing
• how much deposit or equity you have
• how your income is made up
• your credit history and commitments
• how stable your circumstances are
• how long you expect to keep the property
• whether you may move, overpay or raise money later
• how you would cope if payments increased
• whether the property is acceptable to the lender
• whether fees, incentives and charges change the overall value

The right mortgage type is often the one that balances cost, certainty, flexibility and lender fit, rather than the one with the lowest headline rate.

Practical decision table: which mortgage type might fit your situation?

This table is not advice, but it can help you prepare for a more useful conversation.

When can the wrong mortgage type become expensive?

The wrong mortgage type can become expensive when the monthly payment looks attractive but the risks have not been understood.

Common examples include:

• choosing interest-only without a realistic repayment strategy
• taking a fixed rate with high early repayment charges when you expect to move soon
• staying on a standard variable rate without checking alternatives
• choosing a tracker when your budget cannot cope with payment rises
• choosing an offset mortgage when your savings balance is too low to justify the cost
• focusing on the rate but ignoring fees, cashback, valuation costs, legal costs and exit charges
• choosing a lender before checking whether the property type is acceptable
• applying before your income, deposit or credit evidence is ready

A lower monthly payment can be useful, but it is not automatically safer. It may simply move the risk somewhere else.

Example scenario: the cheapest-looking deal is not always the best fit

Imagine a couple buying their next home with a 15% deposit. One income is a stable basic salary, while the other includes regular but variable bonus payments. They also expect to receive a lump sum from a work bonus within the next 12 months and may move again within three years if a planned job relocation happens.

At first glance, a five-year fixed repayment mortgage might feel attractive because the monthly payment is predictable. A tracker may look tempting if the initial payment is lower. An offset mortgage may also come into the conversation because they want to keep savings accessible rather than use every spare pound as deposit.

The trap is treating these as interchangeable rate choices. A broker would usually test several practical points before narrowing the route:

• Early repayment charges: a five-year fix could become restrictive if they move or repay a large lump sum early.
• Portability: even if a product is portable, the future property and affordability would still need to fit the lender’s rules at the time.
• Variable income: bonus income may not be treated the same by every lender, so affordability could differ materially.
• Offset benefit: offset only makes sense if the savings are likely to remain in the linked account for long enough to matter.
• Payment shock: a tracker needs stress-testing against higher payments, not just comparing today’s figure.

The practical lesson is that the “right” UK mortgage type depends on plans, evidence and risk tolerance. The product with the lowest starting payment may be unsuitable if it clashes with likely life changes, while the most secure-looking option may be unnecessarily inflexible.

What should you check before deciding on a mortgage type?

Before narrowing down the mortgage type, check the following.

1. Repayment method

Ask:

• Do I want the mortgage designed to reduce over time?
• If considering interest-only, what is my repayment strategy?
• Would the lender accept that strategy?
• What happens if the repayment plan underperforms?

2. Rate risk

Ask:

• Do I need payment certainty?
• Could I afford payments if rates rose?
• Am I comfortable with a variable or tracker product?
• How long do I realistically need stability for?

3. Flexibility

Ask:

• Might I move during the deal period?
• Do I want to overpay?
• Could I receive bonuses, inheritance or sale proceeds?
• Are there early repayment charges?
• Is the product portable, and what does that actually mean?

4. Total cost

Compare:

• interest rate
• arrangement fee
• valuation fee
• legal costs
• cashback or incentives
• early repayment charges
• exit fees
• monthly payment
• total amount payable over the deal period

5. Lender fit

Check:

• income type and evidence
• credit history
• deposit source
• loan-to-value
• property type
• term into retirement, if relevant
• existing commitments
• dependants and household costs

What documents make mortgage type decisions easier?

The best mortgage discussion starts with evidence, not guesses.

Useful documents usually include:

• proof of ID
• proof of address
• latest payslips, if employed
• P60, if available
• accounts or tax calculations and tax year overviews, if self-employed
• recent bank statements
• deposit evidence
• gifted deposit details, if relevant
• existing mortgage statement, if remortgaging
• credit commitment details
• property details, estate agent listing or memorandum of sale
• tenancy or rental estimate, if buy-to-let
• shared ownership lease or housing association details, if relevant

Documents are not just administration. They help test whether the mortgage route matches the facts a lender will see.

Scenario matrix: how the same borrower question can lead to different answers

Red flags and trade-offs that matter

The main red flags are not always obvious from a mortgage comparison table.

Watch for:

• unclear deposit source
• recent missed payments or defaults
• heavy unsecured debt
• bank statements that do not support declared affordability
• gambling patterns that raise affordability concerns
• income that is difficult to evidence
• short trading history for self-employed borrowers
• unusual property construction
• lease issues or short lease term
• cladding or building safety concerns
• tight completion deadlines
• borrowing that relies on optimistic assumptions

The trade-off is that the cleanest route is not always the one with the highest borrowing or the lowest headline rate. Sometimes a slightly different product, lender or timescale creates a more robust application.

What if you are already struggling to pay your mortgage?

If you are already in arrears or worried about missing payments, do not rely only on product comparison. Speak to your lender as early as possible and consider free debt guidance.

public guidance has guidance here: Government help if you can’t pay your mortgage.

The FCA’s mortgage conduct rules include requirements around how firms deal with customers in payment difficulty. You can read the relevant handbook section here: FCA Handbook: MCOB 13.

A broker may be able to explain mortgage options, but arrears, debt management and repossession risk may also require specialist debt or legal support.

How to prepare before speaking to a mortgage broker

You will usually get a better answer if you prepare a short summary before asking which mortgage type is suitable.

Include:

• whether you are buying, moving, remortgaging or buying to let
• property price or estimated value
• mortgage balance, if remortgaging
• deposit or equity amount
• income types and approximate figures
• credit commitments
• any known credit issues
• preferred timescale
• whether you expect to move, overpay or borrow more later
• whether you prefer payment certainty or flexibility
• any unusual property details
• documents already available

This helps the adviser separate three things:

1. what looks straightforward
2. what needs evidence
3. what could limit lender choice

What is the strongest next step?

The strongest next step is not simply asking for the lowest rate. It is checking which mortgage structure fits your circumstances, what the total cost looks like, and whether the lender route is realistic before you apply.

A good review should answer:

• Which repayment method is suitable to explore?
• How much rate risk can you afford?
• How important is flexibility?
• What fees and charges apply?
• Which lenders are likely to consider the income, deposit and property?
• What documents are needed?
• What is the fallback if the first route does not work?

If you would like help comparing UK mortgage types against your own circumstances, speak to The Mortgage Blog. We can help you understand the routes that may be worth exploring, but we cannot promise approval, a specific rate or a particular lender outcome.

FAQs

What are the main types of mortgages in the UK?

The main UK mortgage types include repayment, interest-only, fixed rate, variable rate, tracker, discounted, capped, offset, residential, buy-to-let, shared ownership and specialist mortgages. These categories overlap, so the final product may combine several features.

What are the three main mortgage types?

People often use “three types” to mean fixed rate, variable rate and tracker. That is only one way to group mortgages by interest rate behaviour. You also need to consider repayment method, property purpose and lender criteria.

What are the six types of mortgages?

There is no single official list of six UK mortgage types for consumers. A practical list might include repayment, interest-only, fixed rate, variable rate, tracker and offset, but residential, buy-to-let and shared ownership are also important categories.

Is a fixed-rate mortgage better than a tracker?

Not always. A fixed rate gives payment certainty for a set period. A tracker can move up or down with the tracked rate. The better fit depends on your budget, risk tolerance, future plans, fees and product terms.

Is the lowest mortgage rate always best?

No. The lowest rate may not be the best option once fees, early repayment charges, incentives, flexibility, term and lender criteria are considered. Total cost and suitability matter.

What is the difference between repayment and interest-only?

A repayment mortgage is designed to repay the capital and interest over the term if payments are maintained. An interest-only mortgage usually only pays the interest each month, so the capital must be repaid separately at the end.

Can I get an interest-only mortgage on my home?

Possibly, but it depends on lender criteria and whether you have an acceptable repayment strategy. Interest-only is not simply a cheaper version of a repayment mortgage, because the capital remains outstanding.

Are Islamic mortgages 0% mortgages?

No. Islamic home finance may use a Sharia-compliant structure rather than conventional interest, but it still has costs, criteria and affordability checks. It is not free borrowing.

Does gambling affect a mortgage application?

It can. Occasional affordable gambling may not automatically prevent a mortgage, but frequent or high-value gambling transactions can raise affordability or conduct concerns, especially if combined with overdrafts, missed payments or other financial pressure.

When should I speak to a mortgage broker?

Speak to a broker if you are unsure which mortgage type fits, your circumstances are complex, you are self-employed, you have credit issues, you are buying an unusual property, or you want help checking lender criteria before applying.

Can mortgage approval be guaranteed?

No. Mortgage approval cannot be guaranteed. Any application is subject to lender criteria, affordability checks, credit assessment, valuation and underwriting.