Personal finance for people who want to be great with money — written by the friend who already is.
The Smart Money Dictionary
A living glossary of the terms, tricks, and rules of thumb that quietly shape your money — translated the way a friend would actually explain them.
49 entries and growing.
Contribute at least enough to get the full match. Anything less is walking past free money on the sidewalk.
The invisible wall most points beginners hit after their third exciting sign-up bonus. Chase counts cards you've forgotten about — including store cards, authorized user accounts, and business cards from other issuers.
Overfunding is the mistake. Underfunding is fine — the account can now roll a limited amount into a Roth IRA for the beneficiary if unused.
Nobody is withholding taxes on this income. Set aside 25–30% the day it lands, or you'll be renegotiating with the IRS in April.
Mostly a problem for people with large incentive stock option exercises. Ignore it until you're exercising ISOs — then hire someone.
Fine if the credits and benefits you'd already use cover it. Not fine if you're using the credits to justify keeping the card — that's the tail wagging the dog.
A number that should never touch your life if you're doing this right. If you know your APR from personal experience, that's the first thing to fix.
Legal. Boring. Should be an annual reminder on your calendar if you're above the income cap. The pro-rata rule is where people mess it up.
Made sense in 2021. Almost never makes sense now unless you're consolidating high-interest debt or investing in something with a return well above your new rate.
The single best domestic points redemption in the country if you have a partner or a kid over two. Earned by hitting 135,000 qualifying points in a calendar year.
Mostly obsolete now that 529s can be used for K-12 in many states. Sometimes still useful for specific private school situations.
Above 760, additional points buy you nothing. Chasing 850 is a hobby, not a strategy.
The difference is the difference between double taxation and single taxation. It matters more than most owners realize.
The workaround for self-employed investors who look bad on paper. Higher rates and bigger down payments are the tradeoff.
The single most anti-fragile thing in personal finance. Everything gets easier when this exists. Everything gets harder when it doesn't.
The reason paying in full matters more than paying on time. Carry a balance once and the grace period disappears on your next statement — interest starts accruing from the day of purchase.
Not the thing to worry about. Worry about 5/24 and utilization instead.
Very useful for short-term liquidity. Very dangerous as a way to fund a lifestyle. Know which one you're doing.
The best retirement account nobody talks about as a retirement account. Pay medical bills out of pocket, save the receipts forever, let the HSA grow, and reimburse yourself in retirement.
Where startup employees make life-changing money and also occasionally owe more tax than they can afford. Model it before you exercise, not after.
Legal shell, not a tax strategy. The tax strategy is the election you make on top of it.
The single most powerful retirement lever available to high-income W-2 employees. About 40% of large-company plans allow it. Nobody at HR will tell you unless you ask.
The number designed to keep you in debt for the rest of your natural life. Only useful as a floor when something has genuinely gone wrong.
The reason people do stupid things like prepay their electric bill for the year. Never manufacture spend you wouldn't have made anyway.
Extremely useful in Europe, Asia, and Latin America. In the US, the good lounges are often crowded or restricted at peak hours.
The reason a backdoor Roth blows up if you have an old rollover IRA sitting around. Roll it into your current 401(k) first — then do the backdoor.
The single most valuable line on a small-business tax return most owners underuse. Phase-outs and specified service business rules make it dense — worth the CPA hour.
Miss them and you owe a penalty. Overpay and you're just giving the government an interest-free loan. Use the safe harbor rule.
You have to actually be willing to cancel for this to work. Most people aren't, which is why most people don't get one.
Not just for rich people. In states with painful probate (California, Florida), it's a middle-class necessity.
The tax bill you thought you deferred forever. Roth conversions in your low-income years between retirement and RMD age are where fortunes are quietly made.
A multi-year chess game, not a one-time decision. Best done in low-income years — post-retirement, pre-Social Security, pre-RMD.
The most powerful tax-advantaged account most people have access to — and the one they contribute to last. Fund it in January, not December.
The card the internet argues about most. If Hyatt is in your rotation, this card pays for itself before your second stay.
Usually starts making sense when net income crosses ~$60–80K. The 'reasonable salary' number is where the IRS lives.
The single biggest reason to open a card. Everything else — earn rates, perks, transfer partners — is background noise compared to a well-timed SUB.
The reason you don't reach for the credit card in December. Boring. Effective. Nobody talks about it.
Usually around age 80. If you expect to live past 80 and have other assets to draw from, delaying to 70 is the highest-return, lowest-risk decision in personal finance.
The right answer for most side-hustlers earning $20K+ of self-employment income. Roth solo 401(k)s exist and almost nobody uses them.
The number that shows up on your credit report is your balance on this date — not your $0 balance the day after you paid. If you want a lower reported utilization, pay before the statement, not after.
The single most important reason not to gift highly appreciated assets during your lifetime. Let heirs inherit them, and the tax evaporates.
A small, reliable edge you can capture almost every December, and after any real market drawdown. The wash sale rule is the trap.
The right answer for 95% of families. Buy 20-year level term equal to 10–15x your income, and stop taking meetings from anyone pitching you whole life.
Useful when your current bracket is higher than your expected bracket in retirement. For most middle-income savers, Roth is the better default.
The cheapest asset protection money you'll ever spend. If you have a pool, a teen driver, or a net worth above six figures, you already needed one.
The second-biggest lever on your credit score after payment history. Under 10% overall is where the scoring model rewards you; 30% is the number everyone quotes but it's already too high.
You are giving an eighteen-year-old a lump sum with no strings attached. Think carefully about who that eighteen-year-old is going to be.
The reason you sell VTI and buy ITOT — not sell VTI and buy back VTI a week later. Also applies across your IRA, which is where people accidentally trigger it.
Rarely the right answer for the middle class. The commissions are why your friend from high school got so excited to sell it to you.
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The kind of financial advice you'd get from a friend who's already figured it out. No hot takes, no leaderboards, no affiliate hustle.