The Moment
You are debt-free, your emergency fund is funded, and you just received a bonus. Congratulations — you are in a position most Americans never reach. Every dollar of this bonus can go directly to building wealth.
No guilt. No triage. No "should I pay debt or invest?" dilemma. Pure forward motion.
The Wealth-Building Stack
Step 1 — Max your Roth IRA ($7,000). If you have not contributed the full $7,000 this year, the bonus fills it. Every dollar in a Roth grows tax-free forever. If your income exceeds the limit ($161K single / $240K married), use the backdoor Roth strategy.
Step 2 — Increase your 401(k) contribution. You cannot deposit the bonus directly into your 401(k) (unless your plan allows lump-sum contributions). Instead, increase your paycheck withholding to maximum ($23,500/year) and use the bonus cash to cover the reduced take-home pay. The effect is the same — more money in tax-advantaged accounts.
Step 3 — Taxable brokerage for the remainder. Total market index fund (VTI/VTSAX) or a three-fund portfolio. The money is liquid, grows with the market, and has favorable long-term capital gains rates (15-20%) when you eventually sell.
Step 4 — 10% joy allocation. You earned this bonus. Take 10% for something you genuinely enjoy. A debt-free person investing 90% of a bonus and enjoying 10% is playing the game at the highest level.
Run Your Numbers
Enter your bonus to see the optimal wealth-building allocation.
Invest-Heavy Bonus Allocator
No high-rate debt, emergency fund full, match captured — the rest can go straight to long-term investing.
Educational illustration — not financial advice. Math: @/lib/finance/allocation.ts. Allocation order follows the canonical waterfall: high-interest debt → emergency reserves → captured match → tax-advantaged room → taxable invest.
What to explore next
- →What should I invest in inside my Roth IRA?
- →How do I build a three-fund portfolio?
- →Should I consider a mega backdoor Roth?
Frequently Asked Questions
Should I invest the full bonus at once or dollar-cost average?
Lump-sum investing beats DCA approximately 68% of the time (Vanguard research). At a bonus size ($5,000-$25,000), the statistical edge of lump-sum is modest but real. Invest it all at once unless the amount is large enough that a sudden decline would cause you to panic-sell.