Cost Share Requirement Calculator

Hamza Gujjar Reviewed by Hamza Gujjar, Algorithm Architect & Software Developer Last updated: July 27, 2026
Disclaimer: This calculator is provided for informational and educational purposes only and does not constitute financial, medical, legal, or other professional advice. Always consult a qualified professional before making decisions based on these results.

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Cost Share Requirement Calculator

Many federal and foundation grants require your organization to contribute a specified percentage of total project cost from non-grant sources - this calculator breaks down exactly how much that cost share amounts to.

Required Cost Share = Total Project Cost x Cost Share%
Grant Funding Needed = Total Project Cost - Required Cost Share

Example

A $200,000 project requiring a 20% cost share:

Required Cost Share = $40,000 → Grant Funding Needed = $160,000

Cash vs. In-Kind Cost Share

Cost share requirements can typically be satisfied through cash contributions, in-kind contributions (donated staff time, facilities use, or equipment valued at fair market rate), or a combination of both - the specific funder's rules determine exactly what qualifies and how it must be documented, so review your grant agreement's cost share provisions carefully before assuming any particular contribution will count.

Why This Requirement Matters Beyond the Application

Failing to meet the required cost share during the actual grant period - not just at application time - can jeopardize continued funding or trigger repayment obligations, which is why tracking cost share contributions carefully throughout the entire grant period is just as important as meeting the requirement on paper when applying.