Mortgage Affordability: What Lenders Actually Look For
So, how much can you actually borrow? It is usually one of the first things people ask us about mortgage affordability, and honestly it is a completely fair question. The answer depends on quite a few things. Stick with us though, because once you understand what lenders look at, it all starts to make a lot more sense.
Mortgage Affordability Is About More Than Your Salary
Most people assume borrowing is just a case of multiplying your salary by a set number. Income matters a lot, but lenders look at your whole financial picture. It is not just about what lands in your bank account each month.
Mortgage affordability rules changed significantly after 2014. Lenders now run much more thorough checks. The goal is to make sure you can genuinely manage your repayments now and if interest rates change in the future. It feels like a lot of questions at the time, but it is designed to protect you just as much as the lender.
What Lenders Are Actually Looking At
Here is a plain English breakdown of the main things lenders consider when they look at your mortgage affordability.
Your income
Lenders want to know how much you earn and how reliable that income is. Employed applicants usually need to share recent payslips and sometimes a P60. Self-employed applicants typically need two or three years of accounts or tax returns.
Bonuses and overtime can sometimes count too. Different lenders treat these differently, which is one of many reasons having a broker on your side is so useful.
Your outgoings
This is where a lot of people get surprised. Lenders look at your regular monthly commitments. That includes loan repayments, credit cards, car finance, childcare costs, subscriptions and student loan repayments. They want to know what you genuinely have left each month once everything else is covered. A mortgage payment needs to sit comfortably within that.
Your deposit
A bigger deposit generally means a stronger mortgage affordability position. Borrowing less relative to the property value opens up better rates and more lender options. Most first-time buyers need at least 5%, though 10% or more tends to make a noticeable difference to what is available.
Your credit history
Lenders look at how you have handled borrowing in the past. Missed payments, defaults or county court judgments can all affect things. How much depends on how recent they are and which lender you approach. A clean credit history puts you in a strong position. For a free way to check yours, Experian and MoneySavingExpert’s Credit Club are both worth a look before you do anything else.
Your employment situation
Permanent employment tends to be viewed positively. That said, self-employed applicants, contractors and people who have recently changed jobs get mortgages every day. It often comes down to finding the right lender for your situation.
Why the Same Salary Can Lead to Very Different Figures
This one genuinely surprises people, so it is worth taking a moment on.
Every lender has their own way of looking at mortgage affordability. Some are more generous with certain types of income. Others place more weight on credit history. Many specialise in particular types of borrower. Two people with identical salaries can walk away with very different borrowing figures depending on who they approach.
Walking straight into your bank and assuming that is your only option is rarely the best move. A good broker knows which lenders are likely to view your situation more favourably, and that knowledge can make a real difference.
What Is a Stress Test?
When lenders assess your mortgage affordability, they check more than just today’s repayments. They also want to know whether you could still manage if interest rates went up.
The specifics vary between lenders, but the idea is consistent. Nobody wants you stretched to the absolute limit. Think of it as a sensible sense check rather than something to worry about. It protects you just as much as it protects the lender.
How to Strengthen Your Mortgage Affordability Before You Apply
Your mortgage affordability position is not set in stone. There are practical things you can do before you apply.
Paying down existing debts reduces your monthly commitments. Lenders look at this favourably. Keeping credit card balances low in the months before your application helps too. Taking on big new credit commitments, like car finance, close to applying is worth avoiding.
A Few More Things Worth Doing
Checking your credit report before a lender does is a smart move. Errors on credit files happen more often than people expect. Sorting them out early is far less stressful than explaining them mid-application.
If anything about your situation is worrying you, speak to a broker well before you plan to apply. That way you have time to address things properly rather than rushing when it matters most.
How a Broker Helps With All of This
Mortgage affordability gets assessed so differently from lender to lender. Having someone who genuinely knows the market in your corner makes a real difference.
A good broker looks at your full picture. They work out which lenders are most likely to view you favourably and point you in the right direction from the start. Rather than applying to several lenders and leaving a trail of credit searches on your file, you get a focused approach that actually suits your situation.
At City Mortgage Solutions, we work with first-time buyers at every stage of this process. Whether you are still figuring out what you might be able to borrow or you are almost ready to make an offer, get in touch with our team and we will give you a straight, honest picture of where you stand.
Once you have a clearer sense of your affordability, the natural next step is getting a mortgage agreement in principle sorted. And if you have not already, our guide on the biggest first-time buyer mistake is worth a read before you start viewing.
Frequently Asked Questions
How many times my salary can I borrow for a mortgage? Most lenders consider lending between 4 and 4.5 times your annual income, though your overall mortgage affordability picture will affect this. Some lenders will go higher in the right circumstances.
Does my overdraft affect my mortgage application? Regular overdraft use can factor into how lenders assess your finances. It is not automatically a dealbreaker but it does form part of the picture they look at when reviewing your spending habits.
Can I get a mortgage with bad credit? It depends on what the issues are and how recent they are. Some lenders specialise in working with applicants who have had credit problems. A broker can help you work out which lenders are worth approaching for your situation.
Is it harder to get a mortgage if I am self-employed? Not necessarily harder, but it does require more paperwork. Having two to three years of clean accounts ready to go makes a big difference. A broker with experience in self-employed mortgages is particularly useful here.
Should I pay off my debts before applying? Often yes, though it depends on your specific situation. Reducing your monthly commitments can improve your mortgage affordability and your credit profile. It is worth a conversation with a broker before making any big financial decisions.