Getting your first mortgage approved can feel like sitting an exam you were never given the syllabus for. One lender says yes, another says no, and nobody tells you why until it’s too late to fix it. The good news? Mortgage lending isn’t random there are specific things underwriters look for, and once you know them, you can stack the odds firmly in your favour.
This guide walks through exactly what improves your chances of getting a first time buyer mortgage approved, in plain English, with no jargon left unexplained.
Start With the Basics: What Is a Mortgage, Really?
A mortgage is a loan secured against a property, usually repaid over 25–35 years. The lender owns a legal charge over the property until the loan is fully repaid, which is why missing payments puts your home at risk. Beyond that simple definition, every mortgage differs in rate type, term, deposit requirement, and eligibility criteria — which is exactly why shopping around (or using a broker who does it for you) makes such a difference.
The Five Things Every Lender Actually Checks
Forget the myths circulating online. When a lender assesses a mortgage application, they’re really only looking at five things:
- Deposit size — how much you’re putting down versus how much you’re borrowing
- Credit history — how you’ve handled debt and repayments in the past
- Income and affordability what you earn versus what you spend
- Employment status employed, self-employed, or a mix of both
- The property itself its value, condition, and mortgageability
Nail these five, and approval becomes far more straightforward. Let’s go through each one.
1. Save the Biggest Deposit You Realistically Can
Your deposit directly determines your Loan to Value (LTV) the percentage of the property’s value you’re borrowing. A smaller LTV (meaning a bigger deposit) unlocks better interest rates and a wider pool of lenders willing to say yes.
- 5% deposit → limited lender choice, higher rates
- 10% deposit → noticeably more options open up
- 15–20% deposit → access to the most competitive mortgage interest rates on the market
If you’re short of a deposit, schemes like Lifetime ISAs, gifted deposits from family, or shared ownership can all help bridge the gap a mortgage advisor can talk you through what you actually qualify for.
2. Clean Up Your Credit Before You Apply
Lenders don’t just check whether you’ve missed payments they look at your entire financial behaviour pattern. Before applying:
- Register on the electoral roll at your current address
- Pay down credit card balances where possible
- Avoid taking out new credit (phone contracts, car finance, “buy now pay later”) in the 3–6 months before applying
- Check your credit report for errors and dispute anything incorrect
- Close unused credit accounts you’re not using
Even if your credit isn’t perfect, don’t assume you’re automatically excluded there’s a growing market of lenders who specifically work with applicants who’ve had credit issues in the past.
3. Understand What “Affordability” Actually Means
Mortgage affordability isn’t just about your salary. Lenders run a full picture of your income against your outgoings, including existing debts, dependents, and even regular subscriptions in some cases. Two people earning identical salaries can be offered very different loan amounts based on their spending habits.
Before applying, it helps to:
- Reduce unnecessary monthly outgoings for a few months
- Avoid large, unexplained transactions on your bank statements
- Keep overdraft usage to a minimum
A mortgage calculator can give you a rough starting estimate, but affordability assessments go far deeper than any online tool can replicate which is where proper mortgage advice becomes genuinely valuable rather than optional.
4. Self-Employed? You’re Not Excluded You Just Need the Right Broker
Self-employment used to make mortgage approval genuinely harder. Today, plenty of lenders actively welcome self-employed applicants but the paperwork bar is higher: typically 2–3 years of accounts or tax returns, though some lenders will consider just one year with strong supporting evidence.
This is exactly where a broker who works across the whole market earns their fee. Rather than applying to one bank and hoping, a broker matches your specific income structure sole trader, limited company director, contractor to lenders that are genuinely comfortable with it.
5. Choose the Right Property (And Know the Rate Type You Want)
Not every property is mortgageable in its current state issues like short leases, non-standard construction, or properties above commercial units can narrow your lender options. Get a property surveyed before you fall in love with it.
You’ll also need to choose a rate type:
- Fixed rate mortgage same payment for a set period, easier budgeting
- Tracker mortgage moves with the Bank of England base rate
- Variable rate mortgage can change at the lender’s discretion
There’s no universally “best” option it depends on your appetite for risk and how long you plan to stay in the property.
Why a Broker Beats Going Direct to One Bank
Walking into a single bank means seeing exactly one set of products. A whole of market mortgage broker compares deals across dozens of lenders, including some that don’t deal directly with the public at all. For first-time buyers especially, that difference often means the gap between a rejection and an approval, or between an average rate and a genuinely competitive one.
If you want a straightforward conversation about your situation deposit, credit, income, whatever stage you’re at Discount Mortgages can search the market for suitable residential mortgages and talk you through your options with no pressure to commit.
FAQs: First-Time Buyer Mortgages
What is a mortgage? A mortgage is a loan secured against a property, typically repaid over 25–35 years, where the lender holds a legal charge over the property until it’s fully repaid.
How do I qualify for a mortgage? Qualification depends on your deposit size, credit history, income and affordability, employment status, and the property you’re buying. Each lender weighs these differently, which is why comparing multiple lenders matters.
How much deposit do I need? Most lenders ask for a minimum of 5%, though some low-deposit schemes exist. A larger deposit 10% or more generally opens up better rates and more lender choice.
Can I get a mortgage with bad credit? Often yes. There are lenders who specifically work with applicants who’ve had credit issues, though rates and deposit requirements may be less favourable than for those with a clean credit history.
Can self-employed people get a mortgage? Yes. Self-employed applicants typically need 2–3 years of accounts or tax returns, though some lenders accept less with strong supporting evidence. A broker experienced with self-employed applications can identify which lenders fit your circumstances.
Final Thought
There’s no shortcut to mortgage approval, but there is a clear, learnable process: sort your deposit, clean up your credit, understand your real affordability, and get matched with lenders who actually fit your circumstances. Getting the right advice early on saves time, saves money, and avoids the disappointment of a declined application further down the line.
Ready to find out where you stand? Discount Mortgages can help you compare suitable mortgage options and guide you through the process from enquiry to completion.
Your home may be repossessed if you do not keep up repayments on your mortgage or any other debt secured on it.