Compare entered college savings assumptions with four nominal annual tuition bills. This scenario does not determine 529 tax treatment or eligibility.
All amounts are in US dollars (USD). Savings grow only to enrollment, then are compared with a fixed pool against four nominal tuition bills at college-year beginnings W, W+1, W+2 and W+3. No enrollment-year earnings, later deposits, discounting, living expenses, aid, taxes or fees are modeled. Inflation and nominal annual investment rate are entered assumptions, not historical forecasts or guaranteed returns. Fractional ages retain the mathematical annuity extension, not actual deposit dates; fractions shorter than a month can produce a signed modeled contribution-growth adjustment. Negative rates and losses are outside this scenario. This does not calculate 529 tax benefits, qualified expenses or plan eligibility. Result amounts round to the nearest cent, with halfway values rounding away from zero; totals use unrounded amounts. Very small amounts use scientific notation.