Split by what you earn,
not down the middle.
FortySixty calculates each partner's fair share based on income — transparent, automatic, and equitable.
The math, shown
Alex earns $5,000/mo. Jordan earns $3,000/mo.
Alex pays 62.5% of shared expenses. Jordan pays 37.5%.
Ratios update automatically when incomes change
Fairness without the spreadsheet
Everything you need to keep finances transparent and equitable — without the awkward conversations.
Proportional splits based on income
Stop splitting 50/50 when your incomes aren't the same. FortySixty calculates each partner's share based on what they actually earn — so both of you carry a fair load relative to your income, not an equal burden that ignores reality.
Transparent math
Every number traces back to its source. No black boxes — just clear calculations your household can verify together.
Private by design
Control exactly what your partner sees. Full transparency or just the split amounts — your household, your rules.
Fair, not identical
Enter your incomes and shared bills. We calculate equitable contributions so both partners carry a similar load relative to what they earn. Adjust the ratio anytime to match your values.
- ✓Transparent math and simple controls
- ✓Works with separate or joint accounts
- ✓Updates automatically when incomes change
What couples are saying
“I went back to school and our income changed dramatically. FortySixty helped us stay partners, not scorekeepers.”
“We used to argue about bills every month. Now we just check the app and move on.”
“Finally a tool that gets it. We don't make the same amount — why should we pay the same amount?”
Stop splitting 50/50 when your incomes aren't
Set up your household in minutes. Both partners see exactly how the math works — and why it's fair.