Over a third of couples (36%) don't share a bank account, according to research by Santander - indicating that many people prefer to keep their finances separate, even if they share other parts of their life with someone else.
As reported by MSN Money, many people's motive for keeping their finances separate is to maintain their financial independence. This has undoubtedly become a growing attitude over the last few decades, during which it's become more and more common for both partners to work, even after having kids.
An expert at thinkmoney said that there are advantages and disadvantages to sharing your finances with someone else.
"Obviously, a joint bank account is a big show of commitment, and it can also be very convenient if you both pay for the same mortgage or other bills. And it makes good sense if only one of you is earning - if one is looking after children, for example.
"However, not everyone wants all of their money to go into the same big pot, especially if one person is earning a lot more than the other. And sharing all of your money also makes it difficult to plan surprises like gifts or weekend trips, for example.
"With that in mind, it could make sense for couples to have a shared account for the things they both pay for, and to keep a separate account for each of their spending money - a way of keeping things relatively simple, but avoiding arguments over where the rest of their money is going."
The thinkmoney Personal Account can be opened individually or as a couple, and has a number of benefits - including a personalised budgeting service that ensures enough money is always put aside for essential bills.