The setup
Kim is hosting a friendsgiving for eight guests. She's providing the space, cooking the turkey and two big sides, and buying the wine for the table. Each guest is bringing one dish. Kim wants to split the shared costs (turkey + sides + wine) among the adults present, so she's not out-of-pocket for hundreds of dollars.
Kim's shared-costs receipt
Kim's grocery and wine spend:
- Turkey (12 lb): $58
- Turkey brine + roasting supplies: $18
- Two big sides (stuffing, mashed potatoes): $34
- Rolls: $12
- Wine (three bottles): $72
- Sparkling water and non-alcoholic options: $16
Kim's total shared spend: $210.
What guests bring separately
Guests brought their own dishes (green beans, sweet potato casserole, salad, cranberries, two desserts, cornbread). Those aren't on the shared tab — each guest absorbed the cost of what they brought, and Kim isn't reimbursing anyone for their contribution.
How to split the shared costs
Nine total adults are eating (Kim + 8 guests). Kim covers her own share, and the other eight split the rest of her $210.
- Kim's share: $210 ÷ 9 = $23.33
- Remaining amount to be reimbursed: $210 − $23.33 = $186.67
- Each guest's share: $186.67 ÷ 8 = $23.33
Each guest Venmos Kim $23.33. Kim keeps her own $23.33 in pocket. Total collected: $186.64 (three cents of rounding, on Kim).
Adjusting for non-drinkers
Two guests don't drink alcohol. Wine was $72. If Kim wants to exclude the non-drinkers from the wine share, the math changes:
- Non-wine costs: $210 − $72 = $138. Split 9 ways: $15.33 each.
- Wine cost: $72. Split among 7 drinkers: $10.29 each.
- Non-drinker owes: $15.33
- Drinker owes: $15.33 + $10.29 = $25.62
Kim collects $15.33 from each of the two non-drinkers ($30.66) and $25.62 from each of the six other guests ($153.72). Total collected: $184.38. Kim absorbs her own $15.33 plus one drinker's share of $10.29 = $25.62. Everything reconciles.
The conversation before the invite
The version that works: Kim mentions the plan when she invites people. "I'll cook the turkey and buy wine, and I'll ask everyone to Venmo me around $20 for shared groceries — bring a dish if you can." Everyone knows the ask before they RSVP. No surprise on the day of.
The version that doesn't: Kim invites everyone, cooks, hosts, pays out of pocket, and then sends a Venmo request the next day for $23.33 without explanation. Everyone pays it, but the vibe is off. The fix is a one-sentence heads-up in the invite.
What made this work
- Kim named the ask up front, not after the meal.
- Guests bringing dishes weren't asked to also pay for the turkey — their contribution was the dish itself.
- Non-drinker adjustment was offered, not enforced.
For a shared-cost dinner like this, BillSplitterApp lets you enter the shared groceries as line items and share a link — each guest sees exactly what they owe, with the non-drinker adjustment handled automatically.