MCPCalc

529 Tax Benefits Calculator

Calculate education savings plan tax benefits and projected growth.

Scratchpad (not saved)

$

Amount contributed to the 529 plan each year

$

Current 529 plan balance

years

Years until the beneficiary starts college

%

Expected annual investment return

%

State income tax rate (for state deduction benefit)

$

Max annual 529 contribution deductible from state taxes

$

Expected annual cost of college (tuition, room, board)

What This Calculator Does

Calculate education savings plan tax benefits and projected growth.

It combines Annual Contribution, Current Balance, Years Until College, Expected Annual Return to estimate Projected 529 Balance, Total Contributions, Investment Growth (Tax-Free).

Formula & Method

Core equations: Projected 529 balance with annual contributions: B_t = (B_{t-1} + C) \times (1 + r) State tax savings per year: S = \min(C, L) \times r_{state} where L is the state deduction limit. Tax on growth avoided assumes a 15% capital gains rate: T_{avoided} = G \times 0.15. Inflated college cost: \text{Cost} = 4 \times A \times 1.05^t Inputs are applied in base units, then derived metrics are computed from the same equations and rounded for display.

Notation used in the formulas: R = Projected 529 Balance; x_{1} = Annual Contribution; x_{2} = Current Balance; x_{3} = Years Until College; x_{4} = Expected Annual Return; x_{5} = State Tax Rate; x_{6} = State Deduction Limit.

Method summary: inputs are normalized to consistent units, core equations are evaluated, then secondary values are derived and rounded for display.

Use this calculator for quick scenario analysis. Start with baseline values, change one driver at a time, and compare how sensitive the results are to each input shown above.

Inputs Used

  • Annual Contribution: Amount contributed to the 529 plan each year
  • Current Balance: Current 529 plan balance
  • Years Until College: Years until the beneficiary starts college
  • Expected Annual Return: Expected annual investment return
  • State Tax Rate: State income tax rate (for state deduction benefit)
  • State Deduction Limit: Max annual 529 contribution deductible from state taxes
  • Annual College Cost: Expected annual cost of college (tuition, room, board)

Related Calculators