Split bills with roommates using Dongip

Create a household shared account, agree on what’s split and how, then let Dongip track every charge and show exactly who owes what at settle-up time.

Roommate bill-splitting goes wrong for one reason: ambiguity. Who counts what as shared? Who keeps track? When do we settle up? A shared Dongip account answers all three before anyone has to ask. Every roommate sees the same ledger, every shared expense is logged the moment it happens, and settle-up is one number — not a conversation.

1. Create a shared account for your household

   Open Dongip and tap Accounts → New Account → Shared. Name it something that matches your household — your address, apartment number, or just “House Account.”

   Tap Invite and enter each roommate’s email address. They’ll receive an invitation link. Everyone who accepts sees the same live ledger immediately — no syncing, no lag.

2. Agree on what's shared before you start

   Before logging a single expense, hold a five-minute household conversation and write the answers in the account description. Future disagreements will have a written reference.

   Typically shared:

   • Rent and utilities (electric, gas, water, internet)
   • Household supplies (toilet paper, cleaning products, shared tools)
   • Furniture and appliances purchased together

   Negotiate these explicitly:

   • Groceries — full shared pantry, basics only, or fully personal?
   • Streaming and subscriptions — which are household, which are individual?
   • Furniture on move-out — who owns what you bought together?
3. Choose your split method

   Pick one method, commit to it, and document it in the shared account settings.

   Equal split

   Total bill divided by number of roommates. Simple and fast. Works well when rooms are similar in size and incomes are roughly comparable.

   By room size

   Larger rooms pay more rent, smaller rooms pay less. Formula: multiply total rent by each person’s share of total bedroom square footage.

   By income

   Each person pays proportional to take-home pay. Fair when there’s a significant income gap. You don’t need to share exact salaries — a rough ratio like 40/60 works.

4. Log shared expenses as they happen

   When any roommate pays for something shared — the electric bill, a pack of paper towels, the internet renewal — they log it in the shared account that day. Dongip automatically calculates what each other roommate owes based on your agreed split rule.

   If your bank account is connected, most household expenses will appear automatically. Tap to confirm the split and you’re done in seconds.

5. Pick a settle-up day and stick to it

   Balances that drag on for weeks become awkward. Pick a regular date — the 1st of the month alongside rent, or a payday — and make it a recurring habit.

   On settle-up day, open the shared account and tap Settle up. Dongip shows the minimum number of transfers needed to zero out the ledger — usually one or two payments, not everyone paying everyone. Make the transfers, and the next month starts clean.

Log expenses the day they happen, not in a batch at the end of the week. Real-time logging means nobody is reconstructing receipts from memory, and the balance is always accurate when someone glances at it.

How do we handle a guest who stays for a week?

A simple rule: the guest’s host covers any extra grocery or utility bump that month. It doesn’t need to be precise — a rough estimate is fair enough and avoids over-engineering a one-off situation.

What if someone is away for most of the month?

For a trip of two weeks or more, consider prorating utilities for the days absent. Log the adjusted amount manually in the shared account with a note explaining the proration.

How do we handle someone moving in or out mid-month?

Prorate rent and utilities based on days occupied. For example, if someone moves in on the 11th of a 30-day month, they owe 20/30 of their share. Log the prorated amount manually and note the dates in the description.

Is it fair to split rent by room size?

Yes — it’s one of the most common fairness methods. Roommates with smaller rooms pay less rent in exchange for less space. Document the formula in your shared account description so everyone agrees it upfront.

One roommate keeps forgetting to log expenses. What do we do?

Connect that roommate’s bank to the shared account. When transactions sync automatically, logging becomes reviewing rather than manual entry — most people who resist manual logging have no problem confirming auto-imported transactions.

If you’re splitting unevenly (by room size or income), document the exact formula in writing before anyone moves in. Unequal splits with no stated rule are the most common source of roommate disputes.

Rotate who takes responsibility for logging household purchases each month, or just keep the shared account open to all roommates so anyone can log. One person acting as permanent bookkeeper builds resentment over time.