This calculator uses a proportional split method based on income, which is considered fairer than a simple 50/50 split when partners have different incomes.
The formula:
Calculate the Bill-to-Income Ratio: Total Bills รท Combined Income
Multiply each person's income by this ratio to get their fair share
This ensures both partners contribute the same percentage of their income toward shared expenses, making the financial burden equal even if the dollar amounts differ.
Your income values are automatically saved in your browser for convenience.