High deposit mortgages: how to get a better deal

A larger deposit can make your mortgage application easier to place and may help you access more competitive products. That’s because a higher deposit usually means a lower loan-to-value (LTV)—a key measure lenders use to understand risk.

This guide explains what “high deposit” typically means, how it can affect mortgage options and repayments, and what to consider before you apply.

What counts as a high deposit?

In UK mortgage terms, a “high deposit” is generally anything that pushes your LTV down into a more favourable band.

While definitions vary by lender and product, many borrowers start to notice meaningful differences once their LTV is below around 75%, and especially once it’s below around 65%.

A simple way to think about it:

• Higher deposit = lower LTV
• Lower LTV = potentially more lender choice
• Lower LTV = potentially better pricing

Note: A high deposit doesn’t automatically guarantee a specific interest rate. Lenders still assess affordability, credit profile and the property you’re buying.

How a high deposit affects your LTV (and why that matters)

Your LTV is the relationship between the mortgage you want and the property value.

LTV formula:

• LTV = (Mortgage amount ÷ Property value) × 100

Example:

• Property price: £200,000
• Deposit: £50,000
• Mortgage: £150,000
• LTV = £150,000 ÷ £200,000 = 75%

When your LTV drops below certain thresholds, you may be able to access products with different pricing or eligibility criteria.

Will a high deposit reduce your monthly repayments?

Often, yes—because you’re borrowing less.

A larger deposit typically means:

• a smaller loan amount
• lower monthly repayments (all else being equal)
• less interest paid over the life of the mortgage

However, your final repayment figure will depend on:

• the interest rate offered
• the mortgage term (e.g., 25 years vs 30 years)
• the repayment type (repayment vs interest-only)

If you want to compare options, use a mortgage repayment calculator to model different deposit sizes, loan amounts and term lengths.

Does a high deposit help if your situation is more complex?

A high deposit can be a helpful mitigating factor because it reduces the lender’s exposure. That said, lenders still look at the full picture.

Common factors that are considered alongside deposit/LTV include:

• credit history (missed payments, CCJs, defaults, etc.)
• affordability (income, outgoings, existing commitments)
• employment and income type (PAYE, self-employed, variable income)
• property type and condition
• how the deposit is sourced (e.g., savings vs gifted funds)

In practice, a strong deposit can improve your chances of finding suitable products, but it won’t replace the need for a mortgage that fits your affordability and circumstances.

How to plan your application with a high deposit

1) Aim for the right LTV band

If you’re close to a threshold, it can be worth reviewing whether additional savings (or timing your purchase) could move you into a more favourable LTV category.

Even a small change can affect which lenders and products are available.

2) Don’t assume the “best” deal is the one you see online

Many advertised rates are based on specific LTVs and borrower profiles. With a high deposit, you may qualify for different pricing, but you’ll usually need a proper comparison based on your exact LTV and details.

3) Get your deposit evidence ready

Lenders typically want to see clear documentation for where the deposit comes from and that it’s available when needed.

If any portion is gifted, ensure it’s structured and evidenced correctly.

4) Check your affordability position

Even with a large deposit, lenders will still assess whether the mortgage payments are affordable based on your income and commitments.

A deposit can reduce the loan size, but it doesn’t change the underlying affordability assessment.

Questions people often ask about high deposit mortgages

Can you put down a very large deposit?

Yes. In some cases, borrowers can put down a substantial deposit and borrow a smaller amount.

However, some lenders have minimum loan size requirements, so the “best” option may depend on how much you’re borrowing—not just how much you’re putting down.

Is it easier to get accepted with a high deposit?

It can be. A strong deposit often improves how lenders view risk, which may widen the range of lenders willing to consider your application.

That said, acceptance still depends on the full application, including affordability and credit profile.

How a mortgage broker can help with high deposit cases

A broker can help you:

• identify the most suitable LTV band for your deposit
• compare products based on your specific circumstances (not just generic online rates)
• understand how your credit profile and income details may affect lender decisions
• prepare your application to reduce avoidable delays

If you’re planning a purchase and want to make your deposit work harder, it’s worth getting advice early—before you commit to a property.

Next step

If you’d like to discuss your deposit size and what it could mean for your mortgage options, get in touch. We can review your situation and help you understand which product types are most likely to fit your goals.