Nest Egg Math
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Nest Egg University

Free lessons on the money decisions that actually come up, organized by where you are in life. Pick a stage below for a suggested order, or just browse everything.

Young saver / early career

Financial knowledge check
A short benchmark quiz — coming soon.

Home buying

Buy vs. rent
The full cost of owning versus renting, and where the crossover sits.

Investing fundamentals

Fee drag
How much a fund's expense ratio actually costs, compounded over decades.
Index vs. active
The expense gap between index and actively managed funds, plus tax drag.
Asset location
Where to hold an asset — taxable, traditional, or Roth — changes what it's worth after tax.

Retirement planning

Estimating what retirement costs
The expense categories, the three spending phases, and the costs people forget.
What will retirement cost you?
A target nest egg and whether your current savings are on pace to reach it.