What Is LTV and Why Does It Matter for Your Mortgage?

LTV — Loan-to-Value — is one of the most important numbers in your mortgage application, yet many first-time buyers don't fully understand what it means or why it has such a dramatic effect on the deals available to them.

In simple terms: the lower your LTV, the better the mortgage deal you'll get. This guide explains everything.

What Is LTV?

Loan-to-Value is the ratio of your mortgage loan to the value of the property, expressed as a percentage. It tells the lender how much of the property you own outright (your equity) versus how much you're borrowing.

Why Does LTV Affect Your Mortgage?

From a lender's perspective, higher LTV = higher risk. If you have a 95% LTV mortgage and the property value drops 10%, you're immediately in negative equity (you owe more than the property is worth). That's a risk the lender takes on.

To compensate for that risk, lenders charge higher interest rates on high-LTV mortgages. The difference can be enormous — often 1–1.5% between 60% LTV and 95% LTV deals. On a £200,000 mortgage, that's a difference of £150–£200 per month.

LTV Bands and What They Mean

Real-World Rate Differences

Here's how LTV affects your actual monthly payment on a £200,000 mortgage over 25 years:

• 60% LTV at 4.2%: £1,083/month | Total interest = £124,900
• 75% LTV at 4.6%: £1,117/month | Total interest = £135,100
• 85% LTV at 5.1%: £1,172/month | Total interest = £151,600
• 90% LTV at 5.5%: £1,228/month | Total interest = £168,400
• 95% LTV at 5.9%: £1,286/month | Total interest = £185,800

The difference between 60% LTV and 95% LTV: £203/month and £60,900 more in interest over the full term. That's the power of a larger deposit.

How to Improve Your LTV

1. Save a Larger Deposit

The most direct route. Every percentage point of extra deposit can unlock better rates. Going from 5% to 10% deposit unlocks far better deals. Use a Lifetime ISA (LISA) for a 25% government bonus if you're under 40 and buying your first home.

2. Buy a Lower-Priced Property

If your deposit is fixed, buying a cheaper property improves your LTV. A £30,000 deposit on a £200,000 property = 85% LTV. The same deposit on a £150,000 property = 80% LTV — one full band improvement.

3. Wait and Build Equity

If you already own a home, time and overpayments build equity. When you come to remortgage, your improved LTV (from paying down the balance and property value growth) unlocks better deals.

4. Use Family Help

Family gifted deposits, guarantor mortgages, or the Bank of Mum and Dad are legitimate ways to boost your deposit and improve LTV. Some lenders accept gifted deposits from family — check the terms carefully.

LTV and Remortgaging

Your LTV changes over time as you pay down your mortgage and (hopefully) your property increases in value. When you remortgage — typically every 2–5 years when a fixed deal ends — your new LTV may be much lower, unlocking significantly better rates. Always check your new LTV before remortgaging.