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How to split groceries with roommates

Shared groceries go wrong in predictable ways: one person always buys the toilet paper, someone else finishes the cheese, and nobody’s sure who paid for what.

The fix isn’t a stricter roommate — it’s a simple system everyone agrees on once. Here’s one that works.

Updated October 4, 2026

A system that works

  1. Decide what’s shared

    Most homes share the basics — toilet paper, dish soap, cooking oil, salt, maybe milk and coffee — and keep everything else personal. Write the shared list down.

  2. Keep one list for the shared stuff

    When the dish soap runs out, whoever notices adds it. Everyone can see what’s needed before they head to the store.

  3. Take turns, or assign items

    Rotate the shared shop, or have each person cover certain items. Either way, the list shows who’s buying what.

  4. Track the money separately

    Keep receipts and settle up with an expense-splitting app or one monthly transfer. Mixing money talk into the shopping list is where arguments start.

  5. Give personal food a home

    A shelf each in the fridge and cupboard ends the “was that yours?” conversation.

  6. Check in once a month

    Five minutes to adjust what’s shared. Someone went vegan? Someone drinks all the oat milk? Update the list.

A shared list the whole house will actually use

HopDrop gives the house one live list on iPhone and Android: anyone can add what’s run out, assign items to people, and see what’s already been bought. A shared pantry shows what’s at home, so nobody buys a fourth bottle of olive oil.

How shared lists work →
Shared house 3 people · synced live
AlexYouSam
🏠 House basics 3
🧻 Toilet paper Alex
🧽 Dish soap You
🫒 Olive oil Sam

Questions

What groceries should roommates share?

Usually household basics and staples everyone uses: toilet paper, cleaning supplies, dish soap, cooking oil, salt and spices, and sometimes milk, coffee or bread. Everything else is easier to keep personal.

What’s the best way to split grocery costs with roommates?

Keep money separate from the list: save receipts and settle up with an expense-splitting app or one monthly transfer.

What’s a good shared grocery list app for roommates?

HopDrop: one live list for the whole house, items assigned to people, and a shared pantry — on iPhone and Android, with no ads.