The Prime Future Guide
Vol. 02
8 min read
Mortgages · Explained

How do
mortgages
work?

A plain-English guide from people who actually explain things.

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A mortgage is a loan that helps you buy a property. Because most of us don't have a spare few hundred thousand pounds sitting around.

You put in a deposit. A lender covers the rest. You pay it back monthly — usually over 25 years — with interest added on top.

01 / 05The basics

The deposit and the loan.

The deposit is typically at least 5–10% of the property value. On a £300,000 home that's £15,000–£30,000 upfront.

The bigger your deposit, the smaller the loan. The smaller the loan, the less risk to the lender. The less risk to the lender — the better the interest rate they'll offer you.

This ratio between your deposit and your loan is called the Loan to Value or LTV. You'll hear this a lot. It's just a way of measuring how much of the property you own versus how much the lender owns.

“The bigger your deposit, the better your rate.
It really is that simple.”
02 / 05How you pay

How you pay it back.

Most common

Repayment mortgage

Every month you pay back a chunk of what you borrowed, plus interest. By the end of the term — you own it outright. This is what most people have, and it’s usually the right choice.

Common for buy-to-let

Interest only

You only pay the interest each month. The original loan still needs to be paid back at the end of the term — in full. You’ll need a plan for that.

03 / 05Choosing your rate

Fixed rate vs variable rate.

The default

Fixed rate

2 · 3 · 5 yrs

Your monthly payment stays exactly the same for a set period — usually 2, 3 or 5 years. Great for budgeting. You know exactly what's going out every month.

When the fixed period ends your lender moves you to their standard variable rate — which is usually higher. That's when most people remortgage.

Variable rate types

Tracker

Follows the Bank of England base rate. If rates fall, you benefit. If they rise, you pay more.

Discounted

Set below your lender’s standard variable rate. Still variable, but cheaper.

Capped

Variable but with a ceiling. Won’t rise above a set level. Peace of mind with flexibility.

04 / 05The right product

Mortgages for
different situations.

Same loan, but the right mortgage shifts depending on who you are and what you’re trying to do.

01

First-time buyer

Most lenders offer specific products for first-time buyers. Your deposit and credit history matter most. We’ll help you understand exactly where you stand before you apply anywhere.

02

Remortgage

When your current deal ends — or if you want a better rate — you remortgage. We do this regularly for clients and can often save hundreds of pounds a month.

03

Buy-to-let

A mortgage for a property you’re renting out. Most buy-to-let mortgages are interest only. Lenders assess affordability based on rental income rather than salary.

04

Joint mortgage

Two or more people sharing a mortgage. Both are responsible for repayments. Common for couples, friends, or family buying together.

05

Guarantor mortgage

Someone — usually a parent — agrees to cover repayments if you can’t. Helps people with smaller deposits or lower incomes get on the ladder.

06

Adverse credit

Had financial difficulties in the past? Some specialist lenders still offer mortgages. Your situation may be better than you think. Have a conversation first.

07

Offset mortgage

Your savings are linked to your mortgage. You only pay interest on the difference. Good for people with significant savings who want to reduce interest costs.

05 / 05Quick answers

The questions
everyone asks.

4–4.5×
Your annual income

Most lenders will offer between 4 and 4.5 times your salary. Some go higher. A quick conversation with us will tell you exactly where you stand.

2–6
Weeks to completion

From application to getting the keys — typically 2 to 6 weeks for a straightforward case. We’ll be honest with you about timescales from the start.

0
Our advice fee

We’re paid by the lender. Our mortgage advice is completely free to you.

The next step

Ready to find
your mortgage?

We search the whole market. Not just one bank's products. Free advice. No obligation.

Let's talkCalculate your mortgage

We typically respond within 2 hours. Your home may be repossessed if you do not keep up repayments on your mortgage.