An 85% LTV mortgage can reduce the deposit needed to buy a rental property, but the smaller upfront payment also means taking on more borrowing. This is why understanding 85 buy to let mortgages means looking beyond the deposit and checking the mortgage rate, fees, rental income and other buying costs.
For example, an 85% mortgage on a £200,000 property would require a £30,000 deposit and leave a £170,000 mortgage. But is that enough cash to buy the property, and will the rent cover the borrowing? Here is how the numbers work.
What does an 85% buy-to-let mortgage mean?
An 85% LTV buy-to-let mortgage allows you to borrow up to 85% of the property's value, meaning you provide the remaining 15% as a deposit.
|
Property price |
15% deposit |
85% mortgage |
|
£200,000 |
£30,000 |
£170,000 |
|
£250,000 |
£37,500 |
£212,500 |
|
£300,000 |
£45,000 |
£255,000 |
|
£400,000 |
£60,000 |
£340,000 |
This is a smaller deposit than the 25% often associated with mainstream buy-to-let mortgages. Cribs Estates' buy-to-let mortgage deposit guide explains the wider deposit options landlords may encounter.
What are the current 85% buy-to-let mortgage rates?
85% LTV products are available from some lenders, although rates and eligibility vary.
As of September 2026, Vida Homeloans publishes an 85% LTV standard BTL rate of 5.79% for a 2-year fixed product and 6.58% for a 5-year fixed product. Both products have a 2% fee, with a £195 assessment fee also applying.
Using a £170,000 mortgage as an example:
|
Item |
2-year fixed |
5-year fixed |
|
Published rate |
5.79% |
6.58% |
|
Mortgage |
£170,000 |
£170,000 |
|
Approx. monthly interest* |
£820 |
£932 |
|
2% product fee |
£3,400 |
£3,400 |
*Illustrative interest-only calculation. It excludes other property and mortgage costs.
Is a 15% deposit enough to buy a BTL property?
For an additional residential property in England or Northern Ireland, higher Stamp Duty Land Tax rates can apply. Under the current rates, a £200,000 additional-property purchase would incur £11,500 in SDLT:
-
First £125,000 at 5% = £6,250
-
Remaining £75,000 at 7% = £5,250
-
Total = £11,500
That means the example purchase already requires:
£30,000 deposit + £11,500 SDLT = £41,500
You would still need to budget for legal costs, valuation or mortgage fees, refurbishment, compliance work and a reserve for repairs or periods without a tenant.
How much rent do you need for an 85% LTV mortgage?
Buy-to-let lenders assess whether the expected rental income provides enough cover for the mortgage interest. Each lender can use its own rental affordability test, so there is no single rent figure that guarantees approval for an 85% buy-to-let mortgage.
For example, a £170,000 mortgage may look affordable based on the purchase price, but the lender will still assess the expected rent against its own criteria.
Who can get an 85% buy-to-let mortgage?
An 85% LTV BTL mortgage is not automatically available to every landlord. Lenders can consider:
-
Whether you are a first-time or experienced landlord
-
Your credit and financial position
-
Expected rental income
-
Property type and condition
-
Whether you are buying personally or through a company
-
Your existing property portfolio
75% vs 85% LTV: which requires more cash?
For a £200,000 property, the difference is easy to understand:
|
Item |
75% LTV |
85% LTV |
|
Deposit |
£50,000 |
£30,000 |
|
Mortgage |
£150,000 |
£170,000 |
An 85% mortgage leaves £20,000 more of your deposit available, but you borrow £20,000 more. That can mean higher monthly interest and potentially higher borrowing costs. So the question is not simply whether you can put down 15%; it is whether the property still works after mortgage interest, management, maintenance, insurance, tax and potential void periods.
How Cribs Estates helps landlords
At Cribs Estates, we support landlords across London and South London with tenant sourcing, rent collection, maintenance, compliance and ongoing property management. Our property management services for landlords can help with the practical side of running a rental property once it is let.
This is important when assessing an investment based on projected rental income. Understanding the likely rent is only the first step; you also need to account for the ongoing costs of managing the property.
FAQs
Can I get an 85% buy-to-let mortgage with a 15% deposit?
Yes, some lenders currently offer 85% LTV BTL products, although eligibility depends on the lender, property, rental income and your circumstances.
What are the current 85% buy-to-let mortgage rates?
As of September 2026, Vida publishes 5.79% for a 2-year fixed 85% LTV BTL product and 6.58% for a 5-year fixed product, both with a 2% fee. Rates can change.
How much rent do I need for an 85% LTV mortgage?
There is no universal figure. Each lender applies its own rental affordability criteria, so the expected rent for the specific property needs to be checked.
Final Thoughts
85 buy to let mortgages can make a rental purchase possible with a 15% deposit, but the lower upfront requirement comes with a larger mortgage and potentially higher borrowing costs. On a £200,000 property, that means £30,000 upfront for the deposit and £170,000 borrowed, before SDLT and other purchasing costs. Book a consultation today.



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