Financial Scenario Simulator

Slide anything. Everything recalculates live — salary, expenses, debt payoff, retirement, 529, home purchase.

Income

Gross annual salary
Annual income growth
Net income assumes Head of Household filing, one dependent, standard deduction, $2,200 Child Tax Credit, and Wisconsin state tax as an example — swap in your own filing status and state.

Fixed Monthly Living Costs

Rent (pre-homeownership)
Daycare
Groceries / food
Everything else (utilities, insurance, gas, subscriptions, gym, fun)
Annual cost-of-living inflation

Debt

Car loan balance
Car payment / mo
Student loan balance
Student payment / mo

Retirement & Investing

Starting 401k balance (employer-sponsored)
Starting IRA balance (yours alone, no match)
IRA type
Two separate accounts: the 401k is employer-sponsored and gets the match below; the IRA is yours alone and never gets a match. The type dropdown just labels the chart below for clarity — new contributions are treated the same either way.
401k employee contribution / mo (now)
Roth IRA contribution / mo (now)
529 contribution / mo (now)
Assumed portfolio return (VOO/SCHD/VXUS blend)

401k after debt-free
Roth after debt-free
529 after debt-free
Employer match assumes 6%, mirroring your actual contribution dollar-for-dollar up to 6% of gross pay. Roth capped at the 2026 IRS max of $625/mo ($7,500/yr) automatically.

Child starts college — year
529 contribution / mo (after college starts)
401k contribution / mo (after college starts)
Roth contribution / mo (after college starts)
The 529 always switches to its "after college starts" rate on schedule (that money's purpose is fulfilled either way). The checkbox above only controls whether the 401k/Roth bump activates — uncheck it to keep those at the debt-free rate indefinitely instead.

Emergency Fund

Starting balance
HYSA rate
Contribution / mo — during debt payoff
Goal — during debt payoff (starter buffer)
Contribution / mo — after debt-free
Goal — after debt-free (fully funded)
Contributions stop automatically once each phase's goal is reached (interest can still keep growing it beyond that). The starter buffer is usually built before attacking debt, then tops up toward a fuller cushion — commonly 3-6 months of living costs — once debt is gone.

Home Purchase

Purchase year
Home price
Down payment %
Mortgage rate
Annual appreciation

Time Horizon

Years to project
Monthly margin (today)
--
Car loan payoff
--
Student loan payoff
--
Net worth at horizon
--
529 at horizon (excluded from NW)
--
529 at 18 yrs / 20 yrs
--
EF starter goal reached
--
EF fully-funded goal reached
--

Net Worth Over Time

Stacked: 401k (blue), IRA/Roth (teal), Emergency Fund (orange), Home Equity (purple). Bold white line = total net worth. Yellow dashed line = 529 (reference only, excluded from the total — it's your child's money). Dotted markers (each a different color, labeled above the chart) mark debt-free, home purchase, and college start.

529 College Fund Over Time

Dotted markers at 18 and 20 years mark the college-start window.

Debt Payoff Over Time

Even $10/Month Is Something

None of this requires starting big — starting is the part that matters, the amount can grow later. Even just $10/month, invested at a flat 8% from a $0 start:
YearsBalanceActually contributed
30~$13,594$3,600
40~$31,087$4,800
50~$68,852$6,000
At 30 years, less than $3,600 out of pocket turns into over $13,500 — nearly $10,000 of that is pure growth, from ten dollars a month. $10/month sitting in something beats $10/month sitting in nothing, every time.

Definitions

Financial freedom — the point where your money works harder than you do. Less income from hours worked, more income from money already invested.

Compound interest — interest earned on interest, not just the original amount. Growth curves upward instead of running in a straight line, because each year's earnings start earning too. Time and staying invested are what make that curve steep.

Compound interest cuts both ways:

  • Working for you — every invested dollar earns, and its earnings start earning too. Each year it's left alone, it does a slightly bigger job.
  • Working against you — unpaid debt interest gets added to the balance, so next month's interest is calculated on a bigger number. That's the real cost of debt, and why payoff comes before investing.

Net worth — total assets minus total debt. The scoreboard for everything in this document — more on this further down, with a calculator to plug in real numbers.

Dividend — a cash payment a company makes to shareholders out of its own profits, usually every quarter.

DRIP — short for dividend reinvestment plan. Instead of a dividend landing as cash, it automatically buys more shares. Most brokerages let this be turned on with one setting. Why it's powerful: each reinvested dividend buys more shares, and those new shares earn their own dividends next quarter — the same compound-interest snowball described above, running quietly in the background with zero extra effort.

Why 8% turns into a runaway train

$10,000 invested at a flat 8%/yr, forever, untouched, no new money added:

YearBalanceGrowth in that decade
0$10,000—
10$21,589+$11,589
20$46,610+$25,021
30$100,627+$54,017

Same 8% every year, but the dollar amount grows because it's calculated on a bigger balance each time. The third decade grew almost five times as much as the first — same rate, bigger base.

Contributing regularly makes it explode

Same $10,000, same flat 8%, but now add $200/month the entire time:

Year$10k left alone$10k + $200/mo added
10$21,589$56,357
20$46,610$156,438
30$100,627$372,506

By year 30, only $82,000 came out of pocket ($10,000 start + $200/mo × 30 years) — the other $290,506 is growth. Showing up every month is what does the work.

Where Debt Can Be Good — Depreciating vs. Appreciating Assets

Not all debt works against you the same way. It comes down to what's on the other end of it:

  • Debt on a depreciating asset — a car loses value every year while the loan still has to be paid in full. You're paying interest on something worth less than when you signed for it. That's why car loans get paid off early.
  • Debt on an appreciating asset — a mortgage buys into something that tends to gain value over time. Equity builds two ways at once: payments lower the balance, and the home's value climbs in the background.

Debt as access, not just cost: financing an appreciating asset and investing the cash freed up can grow net worth faster than paying cash outright. If the market return beats the mortgage rate over time — likely, at a fixed low-single-digit rate — that gap is real, additional net worth. Only true if the investment actually outpaces the loan rate, and the payment stays affordable.

Debt payoff still comes first, and the car loan is still worth clearing fast — this doesn't change the order of operations. But "debt-free" isn't the actual goal. Growing net worth is the goal — once the bad debt is gone, debt on an appreciating asset can be one of the tools that gets there faster.

Time in the Market vs. Timing the Market

The guaranteed loss of doing nothing

Not investing isn't playing it safe — it's a guaranteed loss. Inflation runs about 3%/yr, and cash sitting still loses that much in real purchasing power every year.

A high-yield savings account helps, but doesn't solve it. A HYSA earning ~4% barely clears 3% inflation. Good for money that needs to stay safe and liquid (the emergency fund) — but it only holds ground, it doesn't grow.

The stock market is what actually outpaces inflation. The S&P 500 has averaged about 11.85%/yr over the last 50 years. That's an average — it hides what happens year to year.

What that average actually looks like in a given year

  • Bull market — a sustained stretch of rising prices
  • Bear market — a sustained decline, usually a 20%+ drop from a recent high
  • Recession / downturn — a broader economic contraction that often (not always) lines up with a bear market

The market doesn't walk a straight line to that 11.85% — some years hurt. Averaged across enough of them, the up years make up for the down years.

Real return — what actually builds wealth

"Real return" means the return after subtracting inflation. At ~11.85% nominal and ~3% inflation, real return comes out to roughly 8.6% — that's what's actually building wealth.

Dollar-cost averaging

Nobody can reliably predict which years will be up or down. Dollar-cost averaging — investing a fixed amount on a regular schedule regardless — is the practical answer. A 401k contribution or an automatic brokerage transfer already does this, no extra effort required.

Why the short-term swings stop mattering over time

Every rolling 20-year period in S&P 500 history back to 1928 — including the 20 years starting right before the 1929 crash, and right before the 2000 dot-com crash — has been positive. Short-term, the market is genuinely unpredictable. Over any 20-year window, it has a perfect track record.

Security vs. Risk

Being 100% invested in stocks is higher risk — genuinely more volatile, and the value can drop hard in some years. But the bigger risk is doing nothing: letting inflation quietly erode savings that just sit in cash. Whether stock market volatility is actually dangerous depends on runway — how long until the money is needed. Money untouched for 20-30 years can absorb a bad stretch; money needed next month can't.

The mental shift: retirement accounts are the real savings — they're allowed to be volatile because they have decades of runway. The HYSA is the emergency fund — its job isn't growth, it's being there for the one time it's genuinely needed.

The target: 3-6 months of expenses. The rule: emergencies only — not a big purchase, not "this kind of counts." Every dollar it protects is a dollar that never has to come out of retirement mid-downturn.

Reframing a downturn

A balance drop isn't a real loss until shares are actually sold at that lower price. A downturn just means the same shares are on sale — contributions made during a dip buy more shares for the same dollar.

Why the best days and worst days are tangled together

About 76% of the S&P 500's best days in history have landed either during a bear market or in the first two months of a new bull market, and 7 of the 10 single best days in market history fell within two weeks of the 10 single worst days. There's no clean way to dodge the bad days without also dodging the recovery.

  • 1996-2015 (20 years): S&P 500 averaged 8.2%/yr fully invested. Missing just the 10 best days cut that to 4.5%/yr.
  • Over a similar 30-year window, missing the 30 best days dropped the average from 8.4%/yr to 2.1%/yr.

Staying invested through the scary stretch isn't optimism, it's math — the volatility that feels like risk is also where almost all of the actual return comes from.

Sources: A Wealth of Common Sense, Morningstar, Hartford Funds

The Three-Fund Portfolio (and an Optional Fourth)

The portfolio built into this plan splits evenly — about 33% each — across:

  • VOO — S&P 500 index fund (growth)
  • SCHD — dividend fund (income + relative stability)
  • VXUS — international index fund (diversification)

ETF/index fund, quickly: an ETF is a single security holding a basket of stocks, traded like a regular stock. An index fund tracks a market index instead of trying to beat it — low fees, no manager to second-guess, automatically diversified.

VOO — the core growth engine: one share owns a slice of all 500 of the largest US companies. SCHD — established, profitable companies with a long track record of paying and growing dividends. VXUS — stocks outside the US, so the portfolio isn't a single-country bet.

The more aggressive option: adding a fourth fund

A growth-focused ETF like QQQM (tracks the Nasdaq-100) can increase long-run gains, at the cost of more volatility since it's concentrated in fewer sectors. Splitting evenly across whichever funds are chosen is a reasonable starting point.

The hands-off alternative: automated portfolios

Some investing apps offer automated (or "robo") portfolios — pick a risk level and the app handles fund selection and rebalancing on its own. A reasonable option for someone who'd rather not build and maintain this three/four-fund mix by hand, usually for a small fee.

401k, Roth, and Employer Match — the Order of Operations

  1. 401k match, first, no exceptions. Whatever it takes to capture the full employer match — do that before anything else.
  2. Roth IRA next.
  3. 401k beyond the match, after that.
  4. Taxable brokerage account, last.

Why the match comes first: a guaranteed, instant 100% return — put in a dollar, the employer puts in a dollar. Nothing else here matches that.

Why Roth comes before "more 401k": funded with already-taxed money, so it grows tax-free and withdrawals in retirement are tax-free too. It also has limited room each year (the $7,500 2026 limit), worth using while it's available.

Why "more 401k" still comes before a brokerage account: a traditional 401k gives a tax break now and grows tax-deferred — taxes get paid later, on withdrawal. Still an advantage over a plain brokerage account, which gets no tax break going in or out.

The essential rule: don't touch these accounts early. Withdrawing before retirement age generally triggers a penalty on top of the taxes owed, and costs everything that money would have gone on to compound into. This is exactly why the emergency fund exists.

Net Worth: The One Number That Actually Matters

Everything above — the accounts, the order of operations, the good-debt/bad-debt distinction — rolls up into one number:

Total Assets − Total Debt = Net Worth
  • Assets — cash and the emergency fund, retirement accounts (401k, Roth), the 529 (technically your child's, but still worth tracking), a home's current value, any brokerage account.
  • Debt — car loan balance, student loan balance, mortgage balance, any credit card or other balance.

The actual scoreboard — not income, not debt on its own, but assets minus debt, all together. This is the number the whole plan is trying to grow. Plug in real numbers below to see where things stand:

Assets

Debt

Total assets
$0
Total debt
$0
Net worth
$0

A raise that goes straight to spending doesn't move this number. A car loan traded for a mortgage on an appreciating asset can move it in the right direction even while total debt stays similar, because what's on the other side of that debt changed.

Quick Cheat Sheet: What's a 529?

A tax-advantaged account built specifically for education costs.

  • Contributions grow tax-free, and withdrawals are tax-free too, as long as the money is used for qualified education expenses.
  • Many states offer a state tax deduction or credit for contributions, though it's not federally tax-deductible going in.
  • Same rule as the retirement accounts: withdraw it for something that isn't a qualified expense, and the earnings portion gets hit with income tax plus a 10% penalty.
  • If the beneficiary ends up not needing all of it, it can be changed to another family member, or a portion can be rolled into a Roth IRA for the beneficiary, up to a lifetime limit.

Even $10/Month Is Something

Starting is the part that matters — the amount can grow later. Even just $10/month, invested at a flat 8% from a $0 start:

YearsBalanceActually contributed
30~$13,594$3,600
40~$31,087$4,800
50~$68,852$6,000

At 30 years, less than $3,600 out of pocket turns into over $13,500 — nearly $10,000 of that is pure growth, from ten dollars a month. $10/month sitting in something beats $10/month sitting in nothing, every time.

This is not financial advice. Everything in this cheat sheet is information and education, laid out so it can be understood, followed, and used to make your own decisions. It's your money — you should be the one deciding what to do with it.

The whole point of this document: true financial freedom isn't making more money on a salary. A bigger paycheck helps, but that's not what freedom actually is. Financial freedom is your money working better than you can — dividends getting paid out and reinvested without lifting a finger, a portfolio compounding quietly in the background while life happens, these systems rewarding you and your family whether or not you're actively working that day. This isn't a script to follow blindly — it's information, to build the systems that support the life you actually want.

Big Picture — The Long-Term Order of Operations (next steps below)

Six steps, roughly in order. Steps 2 and 3 run side by side — get out of debt while keeping a small amount of investing alive the whole time, rather than pausing everything until debt is gone.

1

Build a Starter Emergency Buffer — $1,000–$1,500

Comes first, before debt payoff. A quick cushion for day-to-day surprises (a car repair, a copay), so they don't turn into new debt once debt payoff starts. Build it, then move to Step 2.

2

Get Out of Debt

The biggest lever available — every dollar not going to interest works for you instead of against you. Two methods, pick one and run with it:

MethodHow it worksProsCons
SnowballSmallest balance first, regardless of rate — then roll that payment into the next-smallest.Fast early wins, builds momentum, easiest to actually stick with over a long payoff.Costs more in total interest — ignores rate, so a high-rate balance can sit and accrue longer if it's not the smallest.
AvalancheHighest interest rate first, regardless of size.Mathematically optimal — minimizes total interest paid, fastest true payoff in dollar terms.No early win if the highest-rate debt is also the biggest — progress can feel slow, harder to stay motivated through.

Whichever one actually gets followed through wins — the "better" method on paper is worthless if it gets abandoned halfway. Here, the car loan is both the smaller balance and the higher rate — snowball and avalanche point the same direction, pay it first.

The method, put together: pick the debt to attack using whichever approach above, keep the 401k match and 529 small and steady in the background (Step 3), and send every dollar of extra margin at the targeted debt. The payoff rate is a choice, not fixed — faster costs more per month now, slower frees up cash for other things while it runs its course.

3

Start Small Investments While Getting Out of Debt

Runs at the same time as Step 2 — not after it.
  • Employer 401k match — even $10/month. Match dollars are still a guaranteed 100% return.
  • 529 — even $10/month. Time invested matters more than the amount at this stage.
  • Track down any existing retirement/investment accounts so nothing's forgotten.

401k / Roth / 529 order, while debt is still around:

  1. 401k match — trumps everything, always first.
  2. From there, it's a choice: 529 or Roth IRA.
  3. Recommendation: the 529, as long as the match is already covered — keeps the college fund building while debt gets paid down.
  4. Once debt-free, that's the natural point to start adding more into the Roth (Step 5).

Small and steady here — Steps 5 and 6 are where it ramps up.

4

Build the Emergency Fund Up to Fully Funded — 3–6 Months of Expenses

Once debt is cleared, the starter buffer grows into the real cushion: 3-6 months of living costs. Big enough that a job loss or a real emergency never means pulling from retirement.

There's a choice here: put all the freed-up margin into the EF until it's fully funded, or split it with Steps 5/6 (401k, 529, Roth) at the same time. Depends on timeline and how much cushion feels necessary right now — no single right answer, just a tradeoff between a faster fully-funded EF and faster-growing investments.

5

Once Debt-Free, Start Stacking

Debt gone, emergency fund building — increase the 401k (toward the full match if not there yet), the 529, and add or grow Roth IRA contributions.

6

Consistent Investment Cycle — Max It Out

The sustained target once contributions are steady:

  • Max the 401k match — guaranteed return, always first.
  • Keep the 529 going.
  • Max the Roth IRA (2026 limit — $7,500/yr).
  • Save toward a house, if that's a goal.

Next Steps

The big picture above makes the case — these are the concrete actions that actually move it:

  • Evaluate current margin and budget. Decide how any extra room splits across debt, investing, and the 529 — doesn't need to be perfect, just decided.
  • Find out what the existing savings account actually is — a retirement account, or a plain/high-yield savings account. Determines what's already covered.
  • If it's not a high-yield savings account, open one — around 3.5%+ APY. E*TRADE is one example that offers this; any FDIC-insured HYSA in that range works.
  • Confirm 401k enrollment and current contribution rate. This example assumes a 6% match — swap in the real match rate, then make sure enrollment is active and contributions are actually flowing at the intended amount.
  • Open a 529 for your child, if you haven't already.
  • Decide the debt payoff method, step by step: pick which debt gets attacked first (Step 2), set small, steady rates for the 401k match and 529 while that's happening (Step 3), then send every dollar of remaining margin at the targeted debt at whatever pace feels right. Once all debt's gone, decide whether that freed-up margin goes entirely into the emergency fund first, or splits with the Roth/401k/529 at the same time — depends on timeline and how much cushion feels necessary (Step 4).
  • Build out the timeline in the Simulator tab. Play with the sliders — rates, contribution amounts, debt payoff pace — until it feels comfortable, not just theoretically optimal.
?

Student Loan — Fill In When You Know

The one piece of this whole plan still unconfirmed. Fill in whatever's known so far — even partial info helps:

What's known

Status

Estimated interest accruing
— /mo
Fill in the balance and rate above to see whether interest is quietly accruing.
$

Car Loan — Payoff & Interest Saved

Same idea as the student loan above, plus a payoff comparison: what changes if you pay more than the minimum.

What's known

Payment

Interest accruing now
— /mo
Payoff time (minimum)
—
Payoff time (actual)
—
Interest saved vs. minimum
—
Fill in the balance, rate, and minimum payment above to see the payoff timeline.

Fun Savings — Side Pot for Planned Goals

Different from the emergency fund and different from retirement. This is money set aside for something specific and planned — a vacation, holiday gifts, a big one-off purchase — sitting in the same kind of high-yield savings account so it earns interest while it builds, but it isn't meant to stay there for years. Once the goal is hit, it gets spent on purpose, and the tracker starts over for whatever's next.

The Goal

Contribution

Time to reach goal
—
Total contributed by then
—
Interest earned by then
—
Fill in the target, current balance, and monthly contribution above to see the timeline.

Optional: if this is tracked here, its balance can also be added under "Cash / emergency fund" in the net worth calculator on the Financial Cheat Sheet tab, so it's counted as an asset like everything else.