Of course, there is no single right or wrong way for couples to divvy up their finances and financial duties. How tasks and decision-making are split can depend on a partner’s existing financial know-how, interest or willingness. Some people want a 50/50 split of duties; some defer all tasks to one partner. Others, meanwhile, have each partner focus on their individual strengths: One person may be a good at the nitty-gritty of budgets and bills while the other is a big-picture thinker when it comes to money.

We wanted to know the different approaches that couples and partners take. To that end, we asked three groups of people to tell us what they do in their own relationships: professional advisers, academics who study financial behavior, and Wall Street Journal readers. Here are some of their responses about finances.

There’s my money, and there’s your money

Unlike many working professionals, when we got married, my husband and I decided not to combine our finances. Although there is some empirical research showing that people who combine their bank accounts feel a greater sense of “financial togetherness,” which can in turn promote relationship satisfaction, we prefer the feeling of personal control that comes with maintaining separate bank accounts.

We use an expense tracker to equally split bills and daily expenses. When it comes to personal items—like new clothes or videogames—we purchase those from our independent accounts. This means we don’t have to ask our partner for permission to make the occasional luxury or experiential purchase. Importantly, this approach to keeping our bank accounts separate doesn’t mean we don’t talk about financial decisions. When it comes to both major decisions like investing and minor decisions like making purchases for our home or buying a toy for our pet, we make these decisions together. Our general rule is that if the other person is going to split the expense, we ask for their input before making the purchase. Our daily purchase discussions about needs and wants for our family allow us to experience financial togetherness, despite having separate bank accounts.

—Ashley Whillans, assistant professor at Harvard Business School

Three different buckets

In our family, it’s all about setting up a “divide and conquer” strategy while maintaining our unique financial independence. We combine our income and it essentially hits three buckets monthly—after we’ve saved 20% off the top. Bucket No. 1 (a joint checking account) is used to pay monthly bills. That gets 70% of the income. Bucket No. 2, which gets 5%, is a savings account for my spouse for buying gifts, entertainment or personal items. Bucket No. 3, which also gets 5%, is a savings account that allows me to do the same. Giving each partner a safe financial space—where they can have some money to do what they want when they want without having to ask—is a really important step to a healthy marriage when it comes to money.

My spouse is the chief financial officer and manages paying the monthly bills. She’s also in charge of making vendor changes when she feels it’s appropriate. My role is the chief investment officer, and I’m responsible for picking our investments, managing our real estate and allocating our 401(k)s. We act as a joint team when it comes to making financial decisions regarding our children—whether it’s allowances, mobile phones or the credit cards they use.

We act as co-CEOs when it comes to mapping out financial family goals and objectives. Each year, we assess our one-year goals in terms of savings, net worth or possible purchases. We review our long-term financial plan to make sure we are on track for goals such as college education and retirement. Having an open and transparent relationship with our money has allowed us to minimize arguments and discrepancies and focus on maximizing our mutual financial goals.—Ted Jenkin, co-CEO and founder of oXYGen Financial in Savannah, Ga.

It’s all in the prenup

My husband and I have a prenuptial agreement and we are both responsible for our own debts. Because we live in my husband’s condo, he pays the mortgage. I pay the association fee and buy the groceries. I am also responsible for my own car payment and car insurance. I collect rent from my former home. We both had assets when we got married, and he does have children from a prior marriage, so this arrangement seems very sensible for us. We both have separate bank accounts and credit cards. In addition, we have separate retirement accounts—both personal and from our employers.

When we purchase a house together (currently under construction), we should maintain our current arrangement, minus the mortgage; we’ll just divide the mortgage payment in proportion to our salaries. If we eventually sell the house, we will split the proceeds depending on how much we’ve invested in it individually.

—WSJ reader Jessica Moran, Fullerton, Calif.

A monthly financial meeting

My husband and I have been together for over 10 years and combined our finances after we married in 2015. One tradition we introduced when we started living together was to have a conversation about our finances the first day of each month when we develop a spending plan that we create on a shared Google spreadsheet.

In the spreadsheet, each row represents a smaller category of purchases like groceries, entertainment, and clothing that we earmark a certain amount of money toward for the month. We then log any purchases we make on the spreadsheet, and typically don’t discuss these purchases unless they are unexpected and large (like a dental bill). During our monthly financial meeting, we assess how we did with our spending and adjust for the month going forward. We added two new categories to our plan this year: a personal spending account for me and one for him. These accounts allow us a bit of privacy if we make a purchase we don’t necessarily want to share. (This was introduced after our tracking system ruined the surprise of gifts we gave each other over the holiday.)

Tracking all our purchases was painful when we first introduced it, because it focused us on the pain of parting from money. But it quickly became a source of strength, because it has encouraged us to have more regular check-ins with each other about the lives we want and how we can use our money to get us there.

—​Grant E. Donnelly, an assistant professor of marketing and logisticsat Ohio State University’s Fisher College of Business

Joint accounts (except for retirement)

I am the appointed CFO in my household. I remember when I approached my wife and kindly suggested that we hire a financial planner to take a fresh look at our own financial planning. She replied, “Isn’t this what you do?”

We handle both of our incomes in a joint checking account from where expenses are paid. From this checking account, we have monthly electronic transfers going out to an online bank joint savings account for short-term goals. Other transfers go out to brokerage accounts for longer-term goals. We each have our own retirement plans that I manage.

Every year, we sit down and review every financial account we have. My wife gets a one-page report along with copies of the Dec. 31 statements of each account, which I place in the “If I get hit by the bus” estate-planning folder. To keep working in financial harmony, we have another joint account in the same online bank that gets funded monthly. The balance is available solely to my wife to spend as she pleases. This approach works for us. Harmony and simplicity are worth the peace of mind that follows. And always be mindful of making it easier for your spouse to carry on in case the unthinkable happens.

—George Papadopoulos, fee-only financial planner in Novi, Mich.

Down the middle

My partner and I are very, very 50-50 in how we approach our finances. Anything shared—rent, electricity, internet, etc.—is split right down the middle. I have a system for tracking discretionary expenses, and at the end of the month the total of regular shared monthly expenses and one-off expenses gets split. My partner then pays that amount to our credit-card account(s) used for the monthly spending.

The 50-50 setup leaves neither of us feeling like we’re doing more than the other. We also make close to the same salary, so it feels fair.

—WSJ reader Charlie Donley, Philadelphia

A partnership, with guidance

When my husband, Ken, and I got married, we were well aware that money was one of the two primary issues that can come between couples and commonly lead to divorce (the other being sex). We decided early on to make sure that our finances wouldn’t ruin our marriage or create emotional or financial strife.

First, we tackled the obvious. Regarding living expenses and large purchases, we opened three checking accounts to pay bills: a joint account and individual accounts for each of us. Neither of us wanted to feel judged by our financial purchases nor be told what we could or could not buy. We pay all of our household expenses, including large purchases that we agree on like a car, through a joint account and our discretionary expenses through our personal accounts. I took on the role of managing our household expenses, primarily out of practicality. We each had an individual 401(k) that we contributed to regularly, and we started a joint investment account as well. We fund charitable giving—a big priority for us—through our joint account.

We partnered on investment and charitable-giving decisions and it didn’t take us long to realize that we needed professional guidance to educate us, help us make investment decisions, and, at times, arbitrate between us to determine the right financial strategies. While it’s not a conflict-free strategy, it has really worked well for us.

—Maddy Dychtwald, author and co-founder of Age Wave think tank and consultancy

Proportionate spending

My wife and I have a joint account that all of our bills are auto-drafted from every month. Our mortgage, utilities, insurance, auto loans, everything. We figured what the total would be and then figured our proportionate income for the household. For example, my income accounts for 70% percent of the total household income. So, if our monthly bills are $4,000, I would contribute $2,800, or 70%, each month to the joint account and she would contribute her $1,200, or 30%. We did it this way so it would be fair and no one would feel like they are over-contributing or under-contributing, because it’s all relative and subjective.

We also take 10% of any commission or bonuses and put it straight into savings. The remainder is put into our individual accounts for daily life. We use that money for buying whatever we want. It prevents the other person from being upset if they feel too many Amazon packages are showing up at the door.

—Daniel Rodriguez, chief operating officer at Hill Wealth Strategies in Richmond, Va.

A family finance meeting (kids included)

I did all of the finances at the beginning of our marriage. However, this inequity turned into a weird dynamic where my spouse felt like she needed to ask for permission to spend money. So, five years ago we developed a budget and financial scorecard.

Monthly, we track income, expenses and our personal balance sheet (assets, liabilities and net worth). The kids are involved in our financial meetings, where we discuss how much we plan on spending for vacations, eating out, etc. One month, the kids were overspending on school lunch ($400 for the month), so they proposed we make home lunches for the next month to balance things out. It has been a really awesome habit for our family and our net worth has increased 8x during the last five years.

—WSJ reader Regan Fackrell, St. George, Utah

Team effort

It’s important that we are a team on our spending and saving, rather than the husband paying for certain expenses and the wife paying for other expenses. That approach tends to create conflict. So we have both of our direct deposits going to the same checking account, from which we pay for all of our fixed household expenses, and most importantly, our goals. We also have a joint credit card for all other spending. We decide that if we’re going to make a purchase above a certain dollar amount—for example more than $500—we first discuss it so there are no surprises. We also take into consideration gifts for one another, such as for holidays and birthdays. During this time, we have an unwritten agreement that we don’t check credit-card statements so that there is still an element of surprise.

—Lisa Tuttle, Ameriprise financial adviser and co-owner of the Tuttle Group, Edina, Minn.

Separate and competitive

My girlfriend, Samantha, and I have been in a relationship for 12 years and have kept our finances completely separate. We use [money-management site] Mint to compare net worth to see which one of us is more effectively managing their portfolio. Whenever our combined net worth eclipses a new $100,000 milestone, we grab a celebratory meal. Who pays? Honestly, Sam usually pays. Otherwise, we’ll split the check using Venmo.

—WSJ reader Dave Cooper, Milwaukee, Wis.

Cold, clinical and intimate

The financial three-way: yours, mine, ours. This is the guiding framework that my partner, Jay, and I use to handle our finances. We are both in our 50s, divorced, and thanks to this system have not had a single money argument over the five plus years we’ve been together.

We decide what expenses we want to treat as combined and we each pay 50% of those costs. That bucket includes: costs related to the condo we own jointly, vacations we take together, and any other forms of entertainment we do as a couple. We then keep the remainder of our finances—both the savings/investments we accumulated prior to meeting as well as each of our current income streams—in our own separate accounts. We use that money as we see fit, from charitable giving to personal grooming.

On the surface, this may seem to be a very cold and clinical manner of handling finances. But in reality, it is shockingly intimate as it requires you to get financially naked and really talk about money with your partner.

—Manisha Thakor, founder of financial well-being consultancy MoneyZen in Portland, Ore.

Appeared in the February 14, 2022, print edition as 'THE BEST WAYS FOR COUPLES TO SHARE FINANCES.'