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Your 529s · one decision

Give every college plan
a clear runway.

Allocate one lump sum, follow Vanguard’s changing target-enrollment mix, and compare the result with four years at a public university.

01 · Allocate

The lump sum

$
$0$1M

Drag any child’s share below. The other shares rebalance automatically.

03 · Stress test

Choose a return scenario

04 · See the outcome

Family outlook

Projected balances

529 growth & funding targets

Projected 529 balances through enrollment, enrollment-date funding targets, and projected four-year public in-state and out-of-state college costs.

Account detail

Each child’s runway

Names, dates, balances, and enrollment years are editable.

How it works

A glide path, not one fixed return.

Vanguard’s target-enrollment portfolios automatically reduce stocks and add bonds and short-term reserves as enrollment approaches. This model interpolates Vanguard’s July 2026 published allocations quarterly, applies the selected asset-class returns, and subtracts the portfolio expense ratio.

College costs rise from today’s estimate through each of four school years. Withdrawals occur at the start of each school year; money left in the account continues along the same glide path.

The family outlook treats every account as a transferable sibling pool. It converts goals and planned contributions to today-equivalent dollars, then checks every projected bill chronologically so later contributions cannot hide an earlier shortfall. Child cards remain account-specific.

Planning estimate only—not investment, tax, or legal advice. Returns are assumptions, not forecasts or guarantees.