Buy-to-let landlords are being hit by higher interest rates, higher costs and a less friendly tax regime.

Many have seen their mortgage costs spiral meaning they by and large will be hoping for falling interest rates just as much as homeowners and first-time buyers.

There are roughly two million buy-to-let properties that have a mortgage attached, according to the trade association for the banking and financial services sector, UK Finance.

The average two-year fixed rate buy-to-let mortgage is currently 5.36 per cent, according to Moneyfacts. The average five-year fix is 5.48 per cent.

The lowest five-year fixed rate deal the market is currently 3.49 per cent while the lowest two-year fix is 2.69 per cent, albeit both deals come with very hefty fees.

We look at what landlords need to consider when taking a new mortgage, and list some of the best deals available. Both for those who own in their own name and for those who own via a limited company.

Challenging: Buy-to-let investors have been forced top up their game in recent years with higher mortgage rates squeezing profit margins

How cheap are buy-to-let mortgage rates? 

Many landlords who own with a mortgage will be seeing their profits decimated by higher mortgage rates, having been lulled into a false sense of security by the ultra-cheap finance available in recent years. 

Mortgaged buy-to-let investors often use interest-only mortgages to ensure higher cashflow. But when paying interest-only, if the mortgage rate doubles or triples, so do the monthly payments. 

Both the average two-year fixed rate buy-to-let mortgage and five-year fixed rate are currently hovering around 5.4 per cent, according to Moneyfacts.

It means a typical landlord requiring a £200,000 interest-only mortgage on a two-year or five-year fix will need to pay £901 a month in mortgage costs if buying or remortgaging at the moment, excluding fees.

Add that to the cost of periods where the property is empty, repairs, maintenance, letting agent fees, compliance checks, insurance and service charges and it shows how reliant many landlords will be on rents rising in order to turn a profit.

Best mortgage rates and how to find them

Mortgage rates have risen substantially over recent years, meaning that those remortgaging or buying a home face higher costs.

That makes it even more important to search out the best possible rate for you and get good mortgage advice. 

Quick mortgage finder links with This is Money’s partner L&C

> Mortgage rates calculator

> Find the right mortgage for you 

To help our readers find the best mortgage, This is Money has partnered with the UK’s leading fee-free broker L&C.

This is Money and L&C’s mortgage calculator can let you compare deals to see which ones suit your home’s value and level of deposit.

You can compare fixed rate lengths, from two-year fixes, to five-year fixes and ten-year fixes.

If you’re ready to find your next mortgage, why not use This is Money and L&C’s online Mortgage Finder. It will search 1,000’s of deals from more than 90 different lenders to discover the best deal for you.

> Find your best mortgage deal with This is Money and L&C 

Mortgage service provided by London & Country Mortgages (L&C), which is authorised and regulated by the Financial Conduct Authority (registered number: 143002). The FCA does not regulate most Buy to Let mortgages. Your home or property may be repossessed if you do not keep up repayments on your mortgage. 

What about limited company mortgage rates? 

A record number of landlords have set up limited companies to purchase buy-to-let properties last year, in a bid to reduce tax on their investments. 

Between January and September last year, 46,449 buy-to-let companies were set up, a rise of 23 per cent on the same period the previous year. 

That is according to analysis of Companies House data by the property firm Hamptons. 

Holding property in a limited company, also known as ‘incorporating’, is an alternative to holding it in their own personal name, and the tax structure is different. 

For those who own in a limited company, average rates are typically slightly higher with bigger product fees on top.

The average two-year fixed rate  limited company mortgage is 5.52 per cent while the average five-year fixed rate limited company mortgage is 5.67 per cent, according to Moneyfacts.

On a £200,000 mortgage the average company landlord could therefore expect to pay £920 a month over two years or £945 a month over five years.

The downside is that these will likely be accompanied by higher fees. The upside is that limited company landlords can fully deduct their mortgage interest costs from their tax bill. 

The new normal: 46,449 companies were set up between January and September 2024

The new normal: 46,449 companies were set up between January and September 2024

Howard Levy, director of buy-to-let lending at mortgage broker SPF Private Clients, says: ‘Many landlords who own in their own name are incorporating their portfolios, and others are selling up given the profits they were making are now losses due to tax changes. 

‘Many landlords fixed their mortgages three, four or five years ago, so there will be a tranche of funds coming up for review in the next 12 to 24 months and it will be interesting to see what happens. 

‘The main determinant will be where interest rates are at that time, or more specifically about four to six months prior to those rates expiring.’

In July, Metro Bank entered the limited company buy-to-let market.

Traditionally, only specialist buy-to-let lenders operated in this space, but in recent years, smaller building societies such as Leeds, Leek, Family, Mansfield, and Nottingham have also started offering limited company products. 

Expert: Howard Levy, director of buy-to-let lending at mortgage broker SPF Private Clients

Chris Sykes, technical director at broker Private Finance says: ‘Now, Metro Bank has entered this market, and discussions with various lenders suggest that many more will be soon, including high street lenders, so we feel this market will feel more and more vanilla as time goes on. 

‘Metro Bank and other new entrants will be targeting smaller landlords purchasing through a company, rather than large portfolio landlords who still need to use specialist lenders and pay higher rates. 

‘Once a landlord owns around 10 buy-to-let properties, they usually need to work with more complex lenders. 

‘Specialist assets like Houses in Multiple Occupation (HMOs)and Multi-Unit Freehold Blocks (MUFBs) also require specialist lenders. 

‘Holiday lets are now fairly widely accepted by building societies but given the recent tax changes to how holiday lets are treated, we expect to see more lenders accepting ltd company holiday lets too.’

In terms of rates, Chris Sykes thinks that there rates are unlikely to change much for the foreseeable future.

He says: ‘In general residential mortgage rates seem to have hit the floor and there isn’t any margin for them to lower.’

‘On the ltd company buy to let mortgage side of things, I think there is a little room for movement, but they do demand a premium for their complexity and additional risks compared to residential deals though.’

Tax perks: As the gap between personal and corporate tax rates may widen further in the Budget, there has been a surge of landlords incorporating

What does it mean for landlords? 

Many of the landlords who are now remortgaging had become accustomed to rock bottom rates.

Someone who purchased five years ago will have enjoyed an average fixed rate of around 2.5 per cent.

It means on a £200,000 mortgage they would have factored in monthly mortgage costs of around £417 – not the £900 or so they are likely to face when remortgaging today.

That said, mortgage rates are lower than they were during the summer last year meaning the situation is not as dire as it was.

The average two-year fixed rate for buy-to-let reached a high of 6.97 per cent in July, while the average five-year fixes hit 6.82 per cent.

On a £200,000 interest only five-year fixed rate mortgage, that’s the difference between having to pay £1,137 a month when fixing in July compared to £900 a month at the moment. 

Some landlords will do much better than the market average, by using a whole-of-market mortgage broker to find them a cheaper rate. This will depend to some extent on how much equity they have in the property. 

A word of warning here: many of the lowest buy-to-let mortgage rates come with staggeringly high fees. These can be as high as 10 per cent of the total mortgage amount in some cases. On a £200,000 mortgage that would equate to £20,000.

This means it’s essential to look at the overall cost of the mortgage and factor in both the fees and the interest rate. 

To secure the cheapest deal, landlords will also typically need to be buying with at least a 40 per ent deposit or be remortgaging with at least 40 per cent equity in the property. 

Financial shock: Many landlords who own with a mortgage will be seeing their profits cut down by higher mortgage rates

Chris Sykes of broker Private Finance says the situation is a lot better for landlords now than it was last year. 

He adds: ‘Rates have somewhat settled in this market so that gives landlords a little more confidence to transact and we may see some reductions as the year goes on and base rate predictions materialise and reduce – assuming that happens.

‘I’ve had a few calls from people looking to build buy to let portfolios again, whether that be existing landlords or new to market landlords and that is encouraging.

‘It seems like landlords are going to have to work harder to make their money though, a lot of the conversations I am having are around how renovations can be financed – this is changing properties (a house in to flat) this is taking a property from uninhabitable to nice, etc. 

‘These works are positive from the market perspective as this means unused properties are then brought back in to housing stock, and if converting a house in to flats this increases housing stock too.’

How to assess where mortgage rates are heading? 

Nobody wants to lock into a 5.5 per cent five-year fix in 2025 only to find they could have remortgaged onto a 3 per cent rate in 2027 if they had opted for a two-year fix instead.

At present, markets are pricing in three rate cuts in 2025. If forecasts are correct, this could mean base rate will fall from 4.75 per cent to to 4 per cent by the end of 2025.

Looking further ahead, financial markets are forecasting base rate will eventually settle at around 3.75 per cent 

But predictions vary widely.

For example, economists at Capital Economics predict that interest rates will settle at around 3.5 per cent while economists at Oxford Economics think they will settle at around 2.5 per cent in late 2027.

Lenders tend to price their fixed-rate mortgages based on future market expectations for the Bank of England’s base rate.

Expert: Chris Sykes, associate director of mortgage broker Private Finance

Market expectations are reflected in swap rates – financial market rates which anticipate where interest rates will be in two and five years’ time, when fixed mortgages lent today will expire. 

As of 9 Janaury, five-year swaps were at 4.26 per cent and two-year swaps are at 4.3 per cent. These have been heading up over the past month.

From a historic perspective, the lowest fixed rate mortgages very rarely go below the equivalent swaps, which is the case at the moment.

This means fixed mortgage rates will only fall significantly if future interest rate expectations fall further over the coming months and years.

You can check best buy tables and the best mortgage rates for your circumstances with our mortgage finder powered by London & Country – and figure out what you’ll actually be paying by using our new and improved mortgage calculator.

Chris Sykes, technical director at Private Finance said: ‘Looking at the long term, if swaps continue to sustain at a higher level we could indeed see some rises in fixed rate mortgages. 

‘However as the year goes on and base rate reduces we may see some reductions to swap rates as then predictions of base reductions are crystallised, so it will be a telling few months.’

Should you fix or take a tracker? 

The case in favour of fixing for five years 

Five-year fixes currently offer some of the cheapest deals, and having certainty over monthly payments for the next five years may also appeal to some borrowers, given how much interest rates have shot up over the past 24 months. 

And fixing for five years, rather than two years, can sometimes enable landlords to borrow more. 

This is because lenders tend to impose more generous affordability tests. 

Chris Sykes says: ‘I’d say the vast majority are forced onto a five year fixes in order to achieve the level of borrowing they need. Two year deals are basically not even an option for most landlords.’

Howard Levy adds: ‘The bigger landlords seem to be sticking with five-year fixes, preferring to lock in for the longer term. 

‘They do get the equivalent of pound cost averaging though, as rate expiries are coming up for these clients all the time, so if rates drop they book a five-year fix at that time for the next few properties for example.

‘For those who own buy-to-lets in their personal name, typically, a five-year fix will be stressed at a lower rate than a two-year fix. 

‘Given the existing borrowing, higher rates and higher interest cover ratios, it may not be possible to raise the level of funds required without fixing for five-years in some cases.’

‘Paying higher product fees, achieving higher rental incomes, or not being classed as a higher-rate taxpayer are also ways to boost maximum borrowing levels.’

How lenders calculate affordability for buy-to-let mortgages

Affordability for a buy-to-let mortgage is usually assessed by looking at something called the interest coverage ratio (ICR). This is the ratio of gross rental income to mortgage interest payments.

Mortgage lenders need the rental income to cover the mortgage payment, plus a margin to cover other costs.

While this can vary from lender to lender, the average lower-rate taxpayer will need the rental income to cover the mortgage payment by 125 per cent. Higher-rate taxpayers typically see this rise to 145 per cent. 

To mitigate risk, lenders also stress test their customers to ensure their investment would remain profitable if mortgage rates went up. Typically, they add an additional 1-2 per cent to the mortgage rate.

The case in favour of fixing for two years 

Many of those opting for a two-year fix will be doing so because they think interest rates will fall over the next couple of years.

They are banking on the expectation that once inflation subsides, the base rate – and then mortgage rates – will come down, allowing them to fix at a cheaper rate.

Nicholas Mendes of mortgage broker John Charcol says: ‘Predicting the trajectory of mortgage rates over the coming years is still risky business and while it is important to understand the market and make a balanced view on future rate movement it should not influence your decision if your someone who requires a longer period of stability. Getting the right advice is key.

‘If inflation continues to pose a challenge, we should expect bank rate to be higher for longer, which would in turn result in a period of higher mortgage rates. 

‘But, given the current movement and overall landscape, I do expect to see a gradual reduction in mortgage rates over time.’

Howard Levy of SPF Private Clients argues that many landlords are avoiding the stress testing required for shorter fixes by sticking with their current lender when they refinance. 

He adds: ‘Two-year fixed rates don’t usually fit stress tests on a remortgage, unless the loan-to-value is relatively low, but they would be available for a product transfer. 

‘We are seeing many clients opt for a two-year fix for a product transfer with the view that in two years’ time rates will be lower so they can remortgage onto a more palatable rate.’

The case in favour of a tracker mortgage 

Those that are confident of rates falling faster and further than expected may even be trying their luck with a tracker mortgage.

Trackers follow the Bank of England’s base rate, plus or minus a set percentage.

For example, someone could be paying base rate plus 0.75 per cent on top with a tracker. With the base rate at 4.75 per cent, they’d pay 5.5 per cent at present. 

But if the base rate was cut to 4 per cent, for example, their rate would fall to 4.75 per cent.

The main benefit of tracker deals is that they typically don’t come with early repayment charges.

This means if mortgage rates fell over the coming year, someone with a tracker deal could switch to a cheaper fixed deal as and when they liked.

On the flip side, if the base rate stays the same or even rises this year, it could end up becoming an expensive gamble.

Gamble: At present, borrowers opting for a tracker deal will likely pay more than if they fix. The hope is that interest rates will fall.

It’s also worth pointing out that at present, tracker rates tend to be more expensive than fixed rates. 

Howard Levy adds: ‘The margin on tracker rates seems to have remained relatively high compared to the pricing of five-year fixes so they are proving less popular. 

‘With it looking as though base rate will come down gradually, many are opting for the certainty of a five year fix and a higher loan amount rather than the tracker with its possibility of future reductions and a lower loan amount.’

What are the best buy-to-let rates? 

Below, we highlight some of the best deals available to buy-to-let landlords. 

Buy-to-let mortgage rates often come with product fees that can be as high as 10 per cent of the loan. The below are the deals with the cheapest overall annual costs when both the initial rate, fees (for arrangement and valuation etc), and cashback are taken into account.

This is based on the property value being £200,000. The mortgages sourced are available for remortgage deals. For those purchasing, rates may be slightly different.

Please note, these rates were the best deals sourced as of 10 January 2025. 

Cheapest deals for those owning in their personal name

40% deposit mortgages

Five-year fixed rate mortgages 

HSBC has a five-year fixed rate at 4.21 per cent with £1,999 fees at 60 per cent loan to value. 

The Co-operative Bank has a five-year fixed rate at 4.55 per cent with £0 fee at 60 per cent loan to value. 

Two-year fixed rate mortgages 

HSBC has a two-year fixed product at 4.79 per cent with £0 fees at 60 per cent loan to value. 

Santander has a two-year fixed rate at 4.84 per cent with a £49 fee at 60 per cent loan to value. 

25% deposit mortgages

Five-year fixed rate mortgages 

HSBC has a five-year fixed rate at 4.31 per cent with £1,999 fee at 75 per cent loan to value.

Santander has a five-year fixed rate at 4.4 per cent with 1,798 fee at 75 per cent loan to value. 

Two-year fixed rate mortgages       

HSBC has a two-year fixed rate at 5.04 per cent with £0 fees at 75 per cent loan to value.

Santander has a two-year fixed rate at 5.1 per cent with £49 fees at 75 per cent loan to value. 

Best two-year tracker without early repayment charges

40% deposit

BM Solutions has a two-year tracker at 5.18 per cent with £1,499 fees at 65 per cent loan to value. This is base rate (4.75 per cent) plus 0.43 per cent.

25% deposit

BM Solutions has a two-year tracker rate at 5.28 per cent with £1,499 fees at 75 per cent loan to value. This is base rate plus 0.53 per cent.

Cheapest limited company remortgage options

Again, this is based on a property value of £200,000 and is the cheapest remortgage deals overall based on rates and fees.

40% deposit mortgages

Five-year fixed rate mortgages 

State Bank of India has a five-year fixed rate at 4.94 per cent with a 2 per cent fee at 60 per cent loan to value. This is for green energy efficient homes.

Two-year fixed rate mortgages 

Metro Bank a has a two-year fixed product at 3.69 per cent with 5 per cent product fee at 60 per cent loan to value. The deal comes with £500 cashback and a free valuation.

25% deposit mortgages

Five-year fixed rate mortgages 

State Bank of India has a five-year fixed rate for green energy efficient homes at 4.99 per cent with a 2 per cent fee at 75 per cent loan to value.

Two-year fixed rate mortgages       

Leek Building Society has a two-year fixed rate at 4.9 per cent with a £1,495 fee at 75 per cent loan to value. The deal comes with £400 cashback and valuation fee.

How to find a new mortgage

Borrowers who need a mortgage because their current fixed rate deal is ending, or they are buying a home, should explore their options as soon as possible.

Quick mortgage finder links with This is Money’s partner L&C

> Mortgage rates calculator

> Find the right mortgage for you 

What if I need to remortgage? 

Borrowers should compare rates, speak to a mortgage broker and be prepared to act.

Homeowners can lock in to a new deal six to nine months in advance, often with no obligation to take it.

Most mortgage deals allow fees to be added to the loan and only be charged when it is taken out. This means borrowers can secure a rate without paying expensive arrangement fees.

Keep in mind that by doing this and not clearing the fee on completion, interest will be paid on the fee amount over the entire term of the loan, so this may not be the best option for everyone. 

What if I am buying a home? 

Those with home purchases agreed should also aim to secure rates as soon as possible, so they know exactly what their monthly payments will be. 

Buyers should avoid overstretching and be aware that house prices may fall, as higher mortgage rates limit people’s borrowing ability and buying power.

How to compare mortgage costs 

The best way to compare mortgage costs and find the right deal for you is to speak to a broker.

This is Money has a long-standing partnership with fee-free broker L&C, to provide you with fee-free expert mortgage advice.

Interested in seeing today’s best mortgage rates? Use This is Money and L&Cs best mortgage rates calculator to show deals matching your home value, mortgage size, term and fixed rate needs.

If you’re ready to find your next mortgage, why not use L&C’s online Mortgage Finder. It will search 1,000’s of deals from more than 90 different lenders to discover the best deal for you.

> Find your best mortgage deal with This is Money and L&C

Be aware that rates can change quickly, however, and so if you need a mortgage or want to compare rates, speak to L&C as soon as possible, so they can help you find the right mortgage for you. 

Mortgage service provided by London & Country Mortgages (L&C), which is authorised and regulated by the Financial Conduct Authority (registered number: 143002). The FCA does not regulate most Buy to Let mortgages. Your home or property may be repossessed if you do not keep up repayments on your mortgage 

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