Blog
Money is the number one thing couples fight about. Not because they disagree on how much to spend, but because they never actually talked about it. A 10-minute budget conversation once a month prevents most of those fights.
Before running the calculator, decide how you handle money as a couple. There are three common setups:
| Setup | How it works | Best for |
|---|---|---|
| Fully combined | All income goes into one pool. Budget as a household. | Married couples, similar spending habits |
| Fully separate | Each person budgets their own income. Split shared bills. | Early relationships, very different incomes |
| Hybrid (3 accounts) | Joint account for shared expenses. Personal accounts for individual spending. | Most couples |
The hybrid approach is the most common and the most flexible. Each person contributes to shared expenses based on income, then manages their personal money independently.
Open the Budget Calculator and run it twice: once for combined household income, then once for each person's share.
Run the numbers for your household.
Open Budget Calculator →Partner A earns $5,000/month. Partner B earns $3,000/month. Combined: $8,000.
| Category | 50/30/20 split | Dollar amount |
|---|---|---|
| Needs (50%) | Rent, groceries, utilities, insurance | $4,000 |
| Wants (30%) | Dining out, entertainment, hobbies | $2,400 |
| Savings (20%) | Emergency fund, retirement, goals | $1,600 |
Shared costs (rent, groceries, utilities) typically fall in the needs category. Two ways to split them:
| Method | Partner A ($5K) | Partner B ($3K) | Notes |
|---|---|---|---|
| 50/50 | $2,000 | $2,000 | Simple but harder on lower earner |
| Proportional (62/38) | $2,480 | $1,520 | Fair based on income |
| Fixed amount | $2,500 | $1,500 | Rounded for simplicity |
Proportional splitting: Partner A earns 62.5% of combined income ($5,000 / $8,000), so they pay 62.5% of shared expenses. Partner B pays 37.5%. This means the higher earner pays more in dollars but each person uses the same percentage of their income.
This is the part that prevents fights. Each person gets a set amount of money they can spend however they want, no questions asked. It comes from the wants category.
If combined wants budget is $2,400:
Or split equally: $800 personal for each, $800 shared. Whatever feels fair to both of you.
Pick a day each month (first Sunday, last Friday, whatever). Run the calculator together. Review last month's spending. Adjust this month's plan. Takes 15 minutes. Saves hours of arguments about money throughout the month.
Topics for the monthly meeting:
Start your couples budget right now.
Open Budget Calculator →