Building Wealth in Your 30s and 40s
Your peak earning years only build wealth if every dollar goes to work. Start with the guides, tools, and calculators below.
Personal Finance Essentials: Start Here
Your 30s and 40s are the years when the financial decisions you make either compound in your favor or quietly work against you. The articles below walk through the planning topics we see come up most often as income and life get more complex — written for the decisions you're actually navigating, not generic one-size-fits-all advice.
Featured Content
12 Money Mistakes We See Higher Earners Make in Their 40s
From overspending on cars to outdated wills, here are the 12 financial mistakes we see most often from higher earners in their 40s—and how to fix each one.
Article
Lifestyle Creep: How to Budget as a Higher Earner
Earning more but saving the same? Our guide to beating lifestyle creep covers budgeting frameworks, bonus allocation, and dual-income cash flow strategy.
Article
Beyond the 401(k) Match: Tax-Smart Retirement Moves
You’ve claimed your 401(k) match—now what? Explore tax-smart retirement strategies like Backdoor Roths, HSAs, and Mega Backdoor Roths.
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Which Debts to Attack First — and Which to Leave Alone
When you're juggling a mortgage, student loans, a car payment, and a credit card, splitting every extra dollar four ways accomplishes very little anywhere. This guide gives you a clear order of attack — which debts to hit aggressively, which to refinance, and which to simply let ride — so every dollar lands where it saves you the most.
The one-way door most borrowers don't see coming
Refinancing one private loan into another just chases a lower rate — low risk. But refinancing a federal student loan into a private one is permanent: you give up income-driven repayment, Public Service Loan Forgiveness, and hardship deferment for good, with no way back. It's one of the few debt moves you genuinely can't undo — and the guide covers when it's worth it and when it isn't.
Roth Strategies for High Earners
A Roth is one of the best deals in investing — tax-free growth and tax-free withdrawals in retirement — but once your income climbs past the limits, the IRS closes the front door on direct contributions. These two strategies quietly reopen it.
Earn Too Much for a Roth? Use the Back Door
Once your income climbs past the Roth IRA limits, the front door closes — but a "backdoor" stays open. By contributing to a nondeductible traditional IRA and converting it to a Roth, high earners can still get tax-free growth the income caps were meant to deny them. The one catch to understand first is the pro-rata rule, which can trigger a surprise tax bill if you hold other pre-tax IRA money.
Already Maxing Out? Supersize Your Roth
If you're already maxing your 401(k) and still have money to save, the mega backdoor Roth can move tens of thousands of additional dollars into Roth each year — using after-tax 401(k) contributions and an in-plan conversion. The catch: it only works if your employer's plan allows after-tax contributions and conversions, so the first step is checking your plan's fine print.
Personal Finance Calculators
Put real numbers behind your plan with our free calculators — track your net worth, see the total interest a loan will cost you, and project how your investments could grow over time.
Loan Interest Calculator
See how much interest you'll pay over the life of a loan—and how much a higher monthly payment could save you.
Investment Return Calculator
With our investment return calculator, you can estimate the growth potential of your money.
Net Worth Calculator
Quickly and easily learn your net worth (the difference between what you own and owe).
Personal Finance Articles
Browse the latest posts from our personal finance blog — new articles added regularly.
Want a second set of eyes on the whole picture?
Wondering how all this fits with saving for retirement, paying down debt, balancing equity comp, and your other goals? A CFP® professional can give you an outside read on the whole picture — as a one-time second opinion, through an ongoing advice membership, or as part of fiduciary investment management. We work with high earners building long-term wealth, and there's no minimum to get started.
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Advice Membership—$895/year
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