Now point the same automatic system at everything else in your Dream Build — the house, the kids' education, the sabbatical. One rule: retirement never drops below 20%.
Your Dream Build from Step 1 finally gets dollars pointed at it. The mistake to avoid is funding goals at the expense of retirement. If a goal would push retirement below 20%, the goal's timeline moves — not the retirement rate.
What $10,000 not invested at age 30 costs you by 65 at a 7% return. That's the math behind the 20% rule.
Rules of thumb: 20% down avoids PMI on a home (10% is a practical middle ground). 529s have no annual limit, but gifts above $19,000 per child ($38,000 for couples) count against the gift-tax exclusion.