Kentucky is one of the states that offers no state income tax deduction or credit for 529 plan contributions, including its KYSaves plan. The entire benefit comes from tax-free growth and tax-free qualified withdrawals at both the federal and state level. This tool estimates that growth-based benefit rather than an upfront deduction.
How it works
The tool projects the account balance and the tax avoided on its earnings:
balance = future value of annual contributions at the expected return
contributed = annual contribution × years
earnings = balance − contributed
tax avoided = earnings × your investment tax rate
Because there is no Kentucky deduction, the value is the tax you would owe on investment gains in a normal taxable account but avoid inside the 529. The longer the time horizon, the larger the sheltered earnings — and the bigger the benefit.
Example and notes
Contributing 3,000 dollars a year for 18 years at a 6% return grows to roughly
93,000 dollars, of which about 93,000 − 54,000 = 39,000 dollars is earnings. At
a 15% investment tax rate, sheltering those gains saves about 39,000 × 0.15 = 5,850 dollars versus a taxable account — entirely from tax-free growth, since
Kentucky adds no deduction. Withdrawals must be for qualified education expenses
to keep the break; non-qualified withdrawals add a 10% federal penalty on
earnings. Returns are not guaranteed, so treat the projection as an estimate.