Why shared housing is the trickiest case
A trip ends; living together doesn't. House expenses are recurring, uneven (rent is fixed, groceries aren't), and involve different people (wine is for two, internet is for everyone). Without a system, after three months there's one roommate who's become the "bank," covered everything, and is resentful.
Split expenses into three categories
Not all house expenses are divided the same way:
- Fixed shared (rent, common expenses, internet, utilities): split evenly or by room size, paid on the same day each month.
- Variable shared (groceries, cleaning supplies, gas): anyone pays and registers it right away.
- Partial (Saturday barbecue, takeout for whoever was there): split ONLY among those who participated.
The single payment day
The rule that brings the most order: one day a month to settle everything. All month's expenses accumulate as registered, and on day 1 (or whenever you agree), everyone transfers their net balance — one transfer per person, not twenty.
This eliminates constant chasing ("hey, you owe me for groceries") and turns the bill settlement into a 5-minute task.
Recurring expenses on autopilot
Rent, internet, and utilities are the same every month — no point writing them down by hand. In SplitPaw they're set up as recurring expenses: they create themselves each month with their split, and the group only registers what varies.
When someone leaves (or arrives)
The most delicate moment in a shared house. Before the change: everyone settles pending balances and closes the cycle. The new person starts at zero — they don't inherit debts or credits from a time they didn't live there. And if something big is left pending (the deposit, furniture bought together), register it explicitly before moving.
