When you start thinking about buying a home, one of the first questions is usually how much you can borrow. It is a useful figure to know, but it is not necessarily the figure you should spend.

There is a difference between being able to get a particular mortgage and being comfortable with the repayments. A lender might decide that you can afford a certain amount based on its checks, but that does not mean you will necessarily want such a large payment going out of your bank account every month. It is worth looking at your own finances before getting too carried away with property searches. Go through your usual monthly spending and be realistic about it. Bills, food, travel, subscriptions, loans and everything else need to fit alongside the mortgage.

It can be tempting to leave some things out because they are not directly connected to the house. That can give you a very different idea of what you can actually afford. Mortgage lenders will look at your circumstances when deciding how much they are prepared to lend. Your income will be important, but so will your existing commitments, credit history, employment and other financial information. The size of your deposit will also affect how much you need to borrow.

There is no universal answer to how much someone should borrow. Two people earning the same salary can have completely different outgoings. One might have a car loan and other commitments, while the other may have very few regular expenses. Your deposit deserves some thought as well. A larger deposit can reduce the amount you need to borrow, but using all your savings to increase the deposit may not be the best approach. Moving home comes with its own costs, and it is useful to have some money left afterwards.

There can be legal fees, surveys, removals and mortgage-related costs to consider. Depending on the purchase, Stamp Duty Land Tax may also apply. Then there are the costs that come with actually owning the property. Something will eventually need repairing or replacing. It might be a small job, or it could be something much more expensive. Having no money set aside for these situations can make an otherwise affordable mortgage feel much harder to manage.

Interest rates are worth considering too. If you take out a fixed-rate mortgage, your rate will normally stay the same for the agreed period. When that period ends, you will need to look at what happens next. The rates available at that point may not be the same as when you first took out the mortgage. Nobody can know exactly what those rates will be in the future. You do not need to try to predict them, but it is sensible to leave yourself a bit of room rather than building your budget around the assumption that everything will always stay the same.

Your plans for the next few years matter as well. Perhaps you are hoping to have children, change jobs, work fewer hours or take on another financial commitment. Even if none of those things are planned, circumstances can change. A mortgage should not leave you with nothing left at the end of every month. You may want to save, go on holiday, replace your car or simply have some money available for unexpected expenses. Those things are part of everyday life too.

This is why the maximum mortgage figure can be misleading when you are looking at properties. It can be useful as a guide to the upper end of your options, but there is no rule saying you have to borrow that much. In fact, knowing your own spending limit before you start viewing homes can make the search less stressful. You have a clearer idea of which properties are realistic and are less likely to feel pressured into stretching your budget for a house that catches your eye.

It is also worth remembering that the property you end up buying may not be the one you originally expected. You might find that a slightly cheaper house has everything you need, or that a property requiring some work offers better value for your circumstances. Getting advice from a mortgage adviser can help you understand what borrowing options are available to you. It is also useful to consider the other costs of buying before deciding what price range to look at.

The important thing is to look at the whole picture rather than one mortgage figure. How much a lender will offer you, how much you need and how much you feel comfortable paying are not necessarily the same number. Once you have the keys, the mortgage payment will be part of your monthly life for many years. It makes sense to choose an amount that works with everything else you want or need to spend your money on.

Buying a home is a major financial commitment, but it does not have to mean stretching yourself to the absolute limit. A sensible budget, some money set aside for unexpected costs and a little room in your monthly finances can make owning a home much easier to live with. The aim is not simply to find out how much you can borrow. It is to work out how much you can borrow while still being comfortable with the life you have after the mortgage payment has gone out.