Cost Sharing Agreement Template

COST SHARING AGREEMENT TEMPLATE FAQ

What is a cost sharing agreement?

A Cost Sharing Agreement is a contract where two or more parties agree to split certain expenses. It clarifies what costs are shared, how the split is calculated, who pays vendors, how reimbursements work, and what happens if one party pays late or disputes a charge.

When should you use a cost sharing agreement?

Use it when parties share ongoing or one-time expenses — like rent, utilities, marketing costs, project expenses, software subscriptions, or event costs. Having a written agreement helps prevent misunderstandings and gives everyone a clear process for invoices and reimbursements.

How do you decide how costs are split?

Cost splits are usually based on a percentage, equal shares, usage, headcount, revenue share, or another agreed method. The best approach is the one that is easy to measure and explain. This template includes multiple options and a place to document the chosen formula.

What happens if one party pays more than their share?

The agreement should require reimbursement and specify the timeline and proof needed (receipts, invoices). It can also include late fees or interest if reimbursement is delayed.

What costs should not be shared?

Parties often exclude personal expenses, unrelated overhead, costs caused by one party’s negligence, penalties, and unauthorized purchases. Listing exclusions avoids conflict later.

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