How do we split shared expenses fairly when we earn different amounts?
Three common approaches: 50/50 (simplest, but harshest on the lower earner), proportional by income (fairest, but requires monthly math), or fixed contribution to a joint pot regardless of income (a hybrid). Most financial advisors recommend proportional. If Partner A earns $80,000 and Partner B earns $50,000, A pays 61.5% and B pays 38.5% of shared categories — rent, utilities, groceries, joint subscriptions. Cash Compass doesn't auto-calculate the split but shows contributions side by side. Set up a recurring monthly Venmo or Zelle from the lower contributor to whoever pays the rent, and log it as a Transfer line in both partners' Cash Compass. The 2024 Fidelity Couples & Money study showed proportional splitters reported the highest relationship satisfaction with their money setup.
How do we actually set up shared categories?
Subscribe to Cash Compass premium on one partner's iPhone. Add the other partner to Apple Family Sharing (Settings → Family). The other partner gets premium automatically. Both partners install the app and sign in with their own Apple IDs. Now you both have access — but your data is private to each iCloud account unless explicitly shared. Decide which categories are shared (rent, utilities, groceries, kids, vacation fund) and which are personal. Each partner logs their own contributions to the shared categories on their own device. Setup takes about 15 minutes total. The shared layer is logical, not technical — both partners see the same agreed-upon categories and can compare what each contributed during the Sunday review.
What if one of us makes way more and pays for almost everything?
This is common and often workable, but worth talking through. About 27% of dual-earner couples have one partner earning 70%+ of household income according to the 2024 BLS Couples Earnings data. The cleanest setup: the higher earner pays directly for fixed shared expenses (rent, utilities, insurance), the lower earner contributes a proportional or fixed amount toward variable shared expenses (groceries, joint outings, kids if applicable), and both maintain personal discretionary budgets. Cash Compass tracks who paid what for shared categories so the math stays transparent. The hard part isn't the app — it's agreeing on whether contribution is by percentage of income, by absolute dollar, or by a hybrid where the higher earner covers fixed and the split kicks in on variable. Have the conversation explicitly, write it down, revisit yearly.
Can we still pursue joint financial goals like a down payment?
Yes, and the visibility actually helps. Create a Savings: Down Payment category that both partners contribute to from their respective accounts. Each contribution gets logged in both partners' Cash Compass (or just in one with a tag noting source). The 2024 NAR home buyer survey showed median down payment for first-time buyers was 8%; median home price was $410,200, so that's about $33,000. At $1,500/month combined ($800 from one, $700 from the other), you hit $33,000 in 22 months. Cash Compass shows the progress as a category running total; the actual money lives in a high-yield savings account or a joint brokerage. Keeping accounts separate doesn't preclude joint goals — it just means you each contribute from your own paycheck rather than depositing into one shared account.