Framework stage 3: Optimize

Tax basics for early-career professionals

Learn how taxes shape your accounts, investments and paycheck, so you can ask better questions.

5 key ideas · 6 lessons in development

Why it matters

You don’t need to become a tax expert, but a few concepts change which accounts you use and how you invest. Learn how tax-advantaged accounts, capital gains and contribution choices work at a high level.

Questions this topic answers

  • How do tax-advantaged accounts work?
  • How should I think about Roth vs. traditional?
  • What are capital gains, and when are they taxed?
  • What is tax-loss harvesting?
  • Why does it matter which account holds which investment?

Key ideas

The taxes essentials.

The concepts that come up again and again, in plain English.

Marginal vs. effective rate
Your marginal rate applies to your next dollar of income. Your effective rate is total tax divided by total income. Contribution decisions usually hinge on the marginal rate.
Tax-advantaged accounts
Accounts like 401(k)s, IRAs and HSAs that offer tax benefits in exchange for rules on contributions and withdrawals.
Capital gains
Profit from selling an investment for more than you paid. Assets held longer than a year generally qualify for lower long-term rates.
Tax-loss harvesting
Selling an investment at a loss to offset gains elsewhere, subject to rules like the wash-sale rule.
Asset location
Choosing which account holds which investment based on how each is taxed.
Tax education only, not tax advice. Tax rules change and depend on your circumstances. Confirm decisions with a qualified tax professional.

Lessons

Go deeper.

The first lessons for this topic are in development. Until they publish, start with the key ideas and trusted sources on this page.

In development

  • Marginal vs. effective tax ratesPlanned
  • Roth vs. traditional: a decision frameworkPlanned
  • Capital gains basicsPlanned
  • Tax-loss harvesting, explainedPlanned
  • How HSAs are taxedPlanned
  • Asset location basicsPlanned

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