Finance Formula • Published on July 30, 2026 • Last updated July 30, 2026
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Individual amount owed by each person
The baseline subtotal of all items or services
Gratuity amount added to the bill
Sales tax or VAT charged on the bill
Total count of participants sharing the expense
Splitting a bill calculates the individual financial share for a group of people.
While equal splits distribute the total cost evenly, itemized splits allocate specific item charges to individuals, applying proportional shares of tax and tip.
If some people paid upfront, the net owed or refund amount is computed from their payments.
The calculator subtracts each person's calculated share from the amount they actually paid. People with positive results are owed a refund, while people with negative results owe money to the pool.
Tax and tip should be split proportionally based on the cost of the items each person ordered, rather than split equally. This ensures a person ordering a small item isn't paying the same tip/tax amount as someone ordering an expensive dish.
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