Expected Family Contribution Calculator Formula

Understand the math behind the expected family contribution calculator. Each variable explained with a worked example.

Use the Expected Family Contribution Calculator

Formulas Used

Estimated EFC

efc = max(0, (income_contribution + asset_contribution - allowance) / students_in_college)

Estimated Need ($30k School)

need_at_30k = 30000 - max(0, (income_contribution + asset_contribution - allowance) / students_in_college)

Estimated Need ($60k School)

need_at_60k = 60000 - max(0, (income_contribution + asset_contribution - allowance) / students_in_college)

Variables

VariableDescriptionDefault
parent_incomeParent Annual Income ($)75000
parent_assetsParent Assets ($)50000
family_sizeFamily Size4
students_in_collegeStudents in College1
income_contributionDerived value= parent_income * 0.22calculated
asset_contributionDerived value= parent_assets * 0.056calculated
allowanceDerived value= family_size * 6000calculated

How It Works

How to Estimate EFC

The EFC determines your eligibility for need-based financial aid.

Simplified Formula

EFC ≈ (22% of Income + 5.6% of Assets - Family Allowance) / Students in College

The actual FAFSA formula is more complex, but this provides a reasonable estimate. A lower EFC means more aid eligibility.

Worked Example

Parent income $75,000, assets $50,000, family of 4 with 1 student.

parent_income = 75000parent_assets = 50000family_size = 4students_in_college = 1
  1. 01Income contribution = $75,000 x 0.22 = $16,500
  2. 02Asset contribution = $50,000 x 0.056 = $2,800
  3. 03Family allowance = 4 x $6,000 = $24,000
  4. 04EFC = max(0, ($16,500 + $2,800 - $24,000) / 1) = max(0, -$4,700) = $0

Ready to run the numbers?

Open Expected Family Contribution Calculator