Plain-English breakdowns of the things nobody taught you.
Long-form guides, written for the person who's about to fill out a 401(k) or 403(b) form for the first time and isn't sure what any of the words mean. Updated for the current IRS year.
Not sure where to begin? Browse by situation
Guide to First Paycheck
Walk away knowing exactly where every dollar of your first paycheck goes — what's withheld, what's yours, and where to put what's left.
Guide · 13 min readGuide to Money Order of Operations
Always know where your next dollar should go — a nine-step order covering the match, high-interest debt, the emergency fund, Roth, 15%, and goals beyond.
Guide · 9 min readGuide to Emergency Funds
Know exactly how big your emergency fund should be, where to keep it, and the habits that quietly drain it — so a surprise bill never becomes a crisis.
Guide · 11 min readGuide to Debt Payoff
Build a payoff plan you'll actually finish — the three tiers of debt, the avalanche vs snowball math, and how to weigh debt against the employer match.
Guide · 17 min readGuide to Mental Models
Reason about money in your head — twelve shortcuts worth keeping for the times you have to decide without a spreadsheet open, and the math behind each.
The whole roadmap.
The order to do everything in — plus the five-minute version for when thirteen minutes is too many.
Guide to Money Order of Operations
Always know where your next dollar should go — a nine-step order covering the match, high-interest debt, the emergency fund, Roth, 15%, and goals beyond.
Read the guide→Guide · 5 min readGuide to next dollar
Stop second-guessing where your next dollar should go. A 5-minute answer to the 401(k)-vs-Roth-vs-debt question — in plain order, with the why.
Read the guide→For your first real paycheck.
Day-one decisions for someone new to the workforce. The stuff nobody taught you in school — whether your first income is a W-2 paycheck or a 1099 gig.
Guide to First Paycheck
Walk away knowing exactly where every dollar of your first paycheck goes — what's withheld, what's yours, and where to put what's left.
Read the guide→Guide · 12 min readGuide to Gig Work
Gig pay arrives whole because four jobs an employer did quietly are now yours: health, taxes, a cash buffer, retirement. How to pick them up.
Read the guide→The expensive mistakes worth dodging.
The handful of moves that set beginners back the most — mostly about not handing money away — and the fix for each.
Guide to Common Money Mistakes
The six money mistakes that set beginners back the most — from skipping the match to timing the market — and the one move that fixes each.
Read the guide→Shortcuts you reach for before the math.
Mental models that turn money questions into something you can answer in your head — Rule of 72, real returns, the cost of waiting.
Guide to Mental Models
Reason about money in your head — twelve shortcuts worth keeping for the times you have to decide without a spreadsheet open, and the math behind each.
Read the guide→Cover what could derail you.
Before stacking money, make sure one bad week can't undo everything — the cash buffer, the debts eating it, the right coverage, and the account that doubles as a stealth retirement vehicle.
Guide to Emergency Funds
Know exactly how big your emergency fund should be, where to keep it, and the habits that quietly drain it — so a surprise bill never becomes a crisis.
Read the guide→Guide · 11 min readGuide to Debt Payoff
Build a payoff plan you'll actually finish — the three tiers of debt, the avalanche vs snowball math, and how to weigh debt against the employer match.
Read the guide→Guide · 12 min readGuide to Student Loans
Federal vs private, why a paused balance grows, and where student debt lands in the order of operations — pay it down or invest, decided by the rate.
Read the guide→Guide · 10 min readGuide to Credit Scores
What moves a credit score and what doesn't — reading your report, the balance habit that matters most, fixing errors, and how long rough patches last.
Read the guide→Guide · 12 min readGuide to Insurance
Sort what you need from what to skip — health, renters, auto, disability, and term life, not whole life or extended warranties.
Read the guide→Guide · 11 min readGuide to HSA
Turn an HSA into a stealth retirement account — the triple tax advantage, who's HDHP-eligible, the 2026 limits, and the receipt strategy that pays off later.
Read the guide→Guide · 12 min readGuide to Mortgages
Understand your mortgage before you sign — fixed vs ARM, points, PMI, escrow, and the amortization curve almost everyone reads wrong.
Read the guide→Guide · 8 min readGuide to Mortgage Refinancing
When refinancing your mortgage pays off — the break-even test that beats the rule of thumb, and the reset-the-clock trap the savings hide.
Read the guide→Guide · 14 min readGuide to Buying a Car
How to buy a car without getting taken: where dealers really profit — financing and the F&I room — the 20/3/8 rule, and the buyer's playbook.
Read the guide→Where the money actually goes.
The strategy you're already using, what you actually own when you invest, why it grows over time, and the funds inside the account.
Guide to Dollar Cost Averaging
Invest on a schedule so one bad guess can't sink you — what dollar-cost averaging is, when it beats lump sum, and why you're likely already doing it.
Read the guide→Guide · 10 min readGuide to Owning Stocks
What a share of stock actually is: fractional ownership of a real business, plus why companies issue it, market cap, exchanges, and indexes.
Read the guide→Guide · 9 min readGuide to Why Markets Rise
Why the stock market climbs over the long run: companies earn more over time, and price follows earnings — a trend, not a promise.
Read the guide→Guide · 8 min readGuide to When Markets Fall
Drops, corrections, and bear markets are how the market normally behaves. What each one means, how often they come, and why staying invested beats dodging.
Read the guide→Guide · 10 min readGuide to Speculation vs. Investing
Speculation and investing look identical on the same app but run on opposite engines. How to tell a bet from an investment, and where a bet fits.
Read the guide→Guide · 12 min readGuide to Investment Vehicles
Know what to buy inside a 401(k) or brokerage — stocks, bonds, mutual funds, ETFs, index and target-date funds, plus the fees that decide your outcome.
Read the guide→For the people and purposes beyond you.
The retirement account your teen can't yet open for themselves. Education for the next generation. Giving as a line item, not a leftover. And a plan for what you pass on.
Guide to Teen Roth IRA
Open the highest-leverage account there is for a working teen — what counts as earned income, why it beats a 529, and how to set up a Roth IRA step by step.
Read the guide→Guide · 11 min readGuide to 529 Plan
Leftover 529 money isn't trapped — since 2024 you can roll it into your own Roth IRA. Here's the rollover, the 2026 limits, and what to do with a balance.
Read the guide→Guide · 10 min readGuide to Marriage
How married couples structure money — joint, separate, or hybrid — size a shared pot by the budget instead of paychecks, and keep talking as a team.
Read the guide→Guide · 10 min readGuide to Giving
Give in a way you can sustain — set a baseline rate, automate it, and use the tax tools that stretch each dollar: donor-advised funds, QCDs, appreciated stock.
Read the guide→Guide · 9 min readGuide to Estate Planning
Who inherits what you leave, who raises your kids, and the beneficiary forms that quietly override your will — estate-planning basics for your 20s and 30s.
Read the guide→The accounts that quietly do the heavy lifting.
Workplace plans, IRAs, and the Roth-vs-Traditional tax-timing decision you make inside them.
Guide to 401(k)
The one 401(k) decision that matters is the percent you set in the benefits portal — set it right and the rest of the plan falls into place.
Read the guide→Guide · 10 min readGuide to IRA
Five IRA types exist, but for most young savers the Roth is the one that matters. Why it wins, who can contribute, and when the other four apply.
Read the guide→Guide · 9 min readGuide to Roth vs. Traditional
Make the Roth vs. Traditional call with confidence — when each one wins, why your tax bracket drives it, and why Roth often beats the math on paper.
Read the guide→Guide · 12 min readGuide to Catching Up
Started late on retirement? You can't buy back the years, but a late start has stronger levers than a 25-year-old's — and one bet that undoes them.
Read the guide→When the paycheck stops.
Social Security — when to claim, how it's taxed, how it fits the plan — how real spending bends across retirement, and the strategies for drawing the portfolio down without running dry.
Guide to Social Security
Know when to claim Social Security — how Full Retirement Age works, spousal benefits, how it's taxed, and where it fits in your retirement withdrawal plan.
Read the guide→Guide · 9 min readGuide to Retirement Spending
Retirement spending isn't a flat line — it bends. The go-go, slow-go, and no-go years, the spending smile, and what the curve means for the 4% rule.
Read the guide→Guide · 10 min readGuide to Withdrawal Strategies
The 4% rule says how much to withdraw, not what to do when the market drops. How guardrails, bucketing, and a fixed rate each answer that — and which fits you.
Read the guide→No guides found. Try a different search or filter.
The questions you'd rather not ask
Plain answers to the money questions beginners are most afraid to ask out loud — each pointing to the lesson, guide, or tool that goes deeper.
→Glossary of terms
One-sentence definitions for every term used across the guides and calculators — accounts, tax timing, investing, debt, retirement.
→Subject index
The back-of-book index — every topic on the site, with its guide, calculator, and chart anchors gathered into one row.
→Every chart in one place
120 figures across the site, grouped by shape — bar, line, donut, flow. Click any card to land on the chart in context.
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