Where you live is a compounding decision#
Geography is among the most consequential and least discussed financial choices. Median household income runs about $69k in Kansas City, $90k in Austin, $135k+ in San Francisco. Cost of living absorbs some of that gap and nowhere near all of it.
Two mechanisms make it compound. Your first salary anchors every future negotiation — subsequent offers are built as increments on it. And the network effect: the people you meet and the opportunities you hear about are determined by where you are.
Geographic arbitrage sharpens it further. Italian workers commuting into Switzerland earn Swiss wages and live on Italian costs. The extreme version is available to remote workers now.
Staying in a low-opportunity city by default is the version of this that costs most, because it never registers as a choice. You can always move back once established.
The emergency fund that’s too big#
An unusual one: being too careful is also expensive.
Three to six months of expenses in cash is standard and correct. Sixteen months is not risk management, it’s a scarcity reflex with a price tag.
Work it: $4,000 monthly expenses means a six-month fund of $24,000. A sixteen-month fund is $64,000. That extra $40,000 sitting at 3.5% instead of invested at a market average near 8–9% costs roughly $145,000 over twenty years.
Keep the buffer that lets you sleep. Recognise that beyond a point you’re paying a large, invisible fee for a feeling.
Divorce is a financial event nobody plans for#
Uncomfortable and unavoidable. US divorce rates run around 41–50% for first marriages, 60–65% for second, and roughly 73% for third. Roughly 15% of engaged couples sign a prenup, up from 3% in 2010 but still a small minority.
Legal fees alone often exceed $20,000. The larger costs are structural: refinancing a home at current rates, forced sale in a bad market, splitting retirement accounts through a court order with potential tax consequences, dividing business assets. $50,000–$100,000+ is a realistic range, sometimes far more.
Choosing a partner is, among many more important things, the largest financial decision most people make. It rarely gets evaluated as one.
Looking rich#
The new car is often leased. The designer clothes may be borrowed. The impressive flat might consume 60% of take-home pay.
The “$30k millionaire” is the archetype — someone earning $30,000 a year buying the VIP table and then unable to buy drinks. People who look wealthy frequently aren’t, and people who are wealthy frequently look ordinary.
The mechanism is comparison against peers and against curated feeds, and it’s a reliable way to convert income into nothing.
Taking salary when equity was available#
If you work somewhere with real equity — a startup, a pre-IPO company, a public firm with grants — weighting toward equity over base salary can dominate a decade of raises.
The framework is arithmetic. Get total shares outstanding from HR or legal, calculate your holding as a percentage, and estimate the company’s value at a liquidity event. 0.1% of a $100M outcome is $100,000.
Cash has no upside; equity does. The necessary caveat: equity is worth nothing without the company succeeding, so diligence on the business isn’t optional. This is a bet, and it should be sized as one.
Sitting in cash waiting for a better time#
$10,000 in the S&P 500 from 1996 to 2025, fully invested, becomes over $192,000. Miss the 10 best days and you end 56% lower. Miss 20 and it’s 74% lower. Miss 30 and it’s 84%.
You cannot identify those days ahead of time. And nine of the ten largest single-day gains landed during recessions, six of them inside bear markets — meaning they occur precisely when a sidelined investor feels most vindicated for waiting.
Meanwhile cash loses purchasing power daily. At minimum, uninvested money belongs in a high-yield account while rates are good.
Staying at a job out of loyalty#
A 3–5% annual raise roughly keeps pace with inflation and no more. Ten years at a company that hired you at $60,000 gets you to about $70,000.
Switching resets the anchor. The Atlanta Fed’s Wage Growth Tracker has job switchers outpacing stayers again in 2026 — roughly 4.4% against 3.9% in early 2026 — after a brief reversal in 2025 when stayers led. That’s a smaller gap than the 11%+ jumps of the hot 2021–22 labour market, and it’s worth being honest that the switching premium varies a lot with conditions.
The larger effect isn’t the annual differential anyway. It’s that each move resets the base your future increases compound on. Companies pay what they have to, and rarely more unless asked.
High-interest debt, and buying too much car#
Two that get grouped as obvious but have current numbers worth knowing.
Debt isn’t uniform. A mortgage, or a student loan for a qualification that pays, is calculated borrowing. Credit card debt at an average 22.11% APR is different in kind — a $10,000 balance costs about $185 a month in interest before touching principal. Building wealth while carrying that is close to impossible.
Cars have quietly become enormous. The average new vehicle transaction price sat near $49,758 in June 2026, with an average monthly payment around $763 and auto loan rates around 9.58%. Add insurance, maintenance, fuel and depreciation and $1,000+ a month is routine. Over one in five new-car buyers now pay $1,000 or more monthly on the loan alone.
$1,000 a month invested for ten years at 8% is about $213,000. A reliable used car at roughly $537 a month leaves a $213 monthly gap — around $45,000 invested over the same decade. Same commute, same life. If appearance matters, a three-year-old car with 30,000 miles gets you most of the way for dramatically less.
Summary — and what to do about it#
Every item here is a default that was never examined. Examine them.
- Treat your city as a financial decision with a review date. First salaries anchor everything after them.
- Cap the emergency fund at six months and invest the rest. Sixteen months of cash can cost $145k over twenty years.
- Take equity seriously where it’s real — shares outstanding, your percentage, a plausible exit value — and do the diligence.
- Get invested rather than waiting for a better entry. Missing the 10 best days costs over half your return, and they hide inside recessions.
- Reset your salary anchor by moving. Switchers still lead stayers, and each move rebases every future raise.
- Never carry a credit card balance month to month. 22% APR beats every investment you’ll find, in the wrong direction.
- Buy the three-year-old car. The $213 monthly difference is $45,000 over a decade.
- Choose a partner carefully. It’s the largest financial decision most people never assess as one.
None of these require a windfall or a strategy. They require noticing that a default was set for you.
Sources & further reading#
- Atlanta Fed Wage Growth Tracker — job switcher versus job stayer wage growth.
- CNBC on 2025’s reversal in switcher/stayer wage growth — why the switching premium isn’t constant.
- Cox Automotive / Kelley Blue Book June 2026 transaction price report — $49,758 average price, ~$763 average payment, 9.58% loan rates.
- LendingTree, average credit card interest rate in America — the ~22% APR on balances carried.
- A Wealth of Common Sense, “Missing the Best & Worst Days” — why the best days cluster inside recessions.
- Prenuptial agreement statistics 2026 — divorce rates by marriage number and prenup adoption.
- The Prenup Report 2026 — prenup uptake and associated legal costs.
