The calculator that shows couples exactly who should pay what — using 3 fairness models backed by math, not feelings.
Get The Calculator →Both partners feel like they're the one carrying the financial load. Neither has the data to prove it — or disprove it.
Equal sounds fair. Until you realize one person earns 60% of the income and the other keeps 40% of the lifestyle. That's not equal — that's math illiteracy.
Money is the #1 cause of relationship conflict. Not because couples are bad with money — because they've never had a framework to split it.
Because fairness means different things to different couples.
Each partner pays based on their share of total income. Earn more? Pay more. Proportionally.
After all shared bills are paid, both partners end up with the same personal spending money. True equality of lifestyle.
Accounts for individual debts (student loans, car payments) before calculating fair shares. Your real disposable income — not your gross.
That's how one couple discovered the "equal" split was actually 25 percentage points off.
Interactive dashboard • Donut charts • Bar comparisons • Pain Index • Wealth projections
Web app with all 3 models, real-time charts, donut visualization, Pain Index comparison, and pocket money breakdown.
See how redirecting spending arguments into investments compounds over 5, 10, 20 years. Compound growth charts included.
Downloadable spreadsheet for offline use. Same formulas, beautiful dark theme, works on any device.
Step-by-step script to have "the money talk" without it turning into a fight. Ground rules, prompts, and red flags included.
Fill-in-the-blank template to formalize your split. Includes expense categories, savings goals, and review schedule.
20-minute check-in template every 3 months to keep your finances aligned as life changes.
Try the calculator free. Upgrade for the complete toolkit.
Notion template & Excel file available on request after purchase.
38%
30%
41%
3x
The problem isn't that couples are bad with money.
It's that they've never had a framework to split it fairly.
No. One-time payment, yours forever. No recurring charges, no hidden fees.
No. The calculator runs entirely in your browser. Your numbers never leave your device. We don't have a database. We don't track you.
There's no single right answer. That's why we include 3 models — so you can compare and decide together. Most couples end up with a hybrid approach.
Yes — the calculator is licensed for use by you and your partner. Please don't share your login credentials beyond your household.
Then at least you'll split the bills fairly on the way out. But seriously — couples who discuss money openly are less likely to break up. This tool helps.
No. This is an educational calculator built by a finance professional. It's a tool to start conversations, not a replacement for a certified financial planner.
30 seconds of honest math can save you years of money fights.
Get The Calculator →Cash & Crush Calculator™ © 2026
Built by Hasnae B., Finance Professional. For educational purposes only. Not financial advice.