What Is Borrowing Power and What Affects It?
Borrowing power is one of the first things most people want to understand when they start thinking about buying a property.
It sounds simple enough. How much can I borrow?
But the answer is not just based on your salary. Lenders look at a range of things when assessing what may be possible, and that is why borrowing power can vary from one person to the next.
At The Mortgage People, this is one of the most common starting points for clients. Before looking seriously at homes, comparing lenders or working out a budget, it helps to get clear on what your position may look like.
What is borrowing power?
Borrowing power is a rough guide to how much a lender may be prepared to let you borrow based on your financial situation.
It is not the same as formal approval and it is not a guaranteed figure, but it gives you a useful starting point.
It can help answer questions like:
what price range may be realistic
whether your savings are enough to move forward
whether now feels like the right time to buy
what you may need to change before applying
What affects borrowing power?
There is no single factor that determines borrowing power. Lenders will look at the full picture.
1 - Your income
Your income is a key part of the assessment, but it is not always as simple as plugging in one salary figure.
Lenders may look at:
your base salary
overtime or bonus income
casual or contract income
rental income
other regular income sources
Some lenders are more conservative than others when it comes to what income they will include and how they assess it.
2 - Your expenses
This is a big one.
Lenders want to see not just what you earn, but what you spend. That includes:
living costs
rent
childcare
subscriptions
credit card repayments
personal loans
car finance
other regular commitments
Even if your income is strong, high ongoing expenses can reduce your borrowing power quite a bit.
3 - Existing debts
Any existing debt can affect how much you may be able to borrow.
That includes:
credit cards
buy now pay later accounts
personal loans
car loans
student debt where relevant
existing home loans
Even unused credit card limits can sometimes reduce borrowing power because lenders assess the potential repayment burden, not just what you currently owe.
4 - Your deposit and savings
Your deposit does not directly create borrowing power in the same way income does, but it still plays a major part in the overall picture.
A stronger deposit can:
reduce the amount you need to borrow
improve your loan to value ratio
reduce or avoid lenders mortgage insurance in some cases
give you access to more options
It also shows lenders that you have been able to save and manage your finances over time.
5 - Interest rates and lender policy
This is where people often get caught out.
Your borrowing power is not just about your own numbers. It is also affected by lender policy and the wider lending environment.
Different lenders assess applications differently. One lender may be more generous than another. Changes in interest rates can also affect how much you may be able to borrow, because they impact how repayments are assessed.
That is why two people with very similar incomes and expenses can still get different results depending on the lender.
6 - The type of loan you are applying for
Your borrowing power may also be affected by the type of property and loan you are looking at.
For example:
owner occupied and investment lending can be assessed differently
interest only and principal and interest structures can affect repayment calculations
first home buyer support schemes may change what is possible overall
Why borrowing power matters early
The earlier you get clear on borrowing power, the better.
It helps stop you from:
looking at homes outside your realistic range
making assumptions based on online headlines
wasting time chasing the wrong strategy
getting emotionally attached before knowing your numbers
It also helps you plan better. If your borrowing power is stronger than expected, great. If it is lower than expected, that does not necessarily mean stop. It may just mean adjusting the plan.
Can you improve your borrowing power?
In some cases, yes.
Simple changes can sometimes make a difference, such as:
reducing credit card limits
paying down personal debt
improving savings
cutting back on regular spending
waiting until probation ends in a new role
reviewing the timing of a purchase
That is why borrowing power is not just a static number. It can shift depending on your position and the lender being used.
The biggest mistake people make
The biggest mistake is assuming an online estimate is the full answer.
Calculators are useful, but they are only a guide. Real borrowing power depends on how a lender views your full situation.
That is where actual advice becomes valuable. It is not just about getting a number. It is about understanding what sits behind it and what you can do with it.
Final thought
Borrowing power is one of the best places to start if you are thinking about buying a home, refinancing or investing.
It gives you a useful guide, helps shape your next step and makes the process feel a lot clearer.
But it is still only the beginning.
If you want a more accurate view of what may be possible based on your actual situation, the best next step is a conversation.
Want help understanding your borrowing power?
If you want to get clearer on what you may be able to borrow and what could affect it, speak with The Mortgage People.
We can help you understand your options and what may make sense from here.