Net Worth

$385KTop 42%

PeakWorth

$4.2M+$182K

FI Age

50y 1m-11mo

2 min

See your Work Optional Date

SneakPeak
Income Decision

Start, Buy, or Skip the Business Path?

Owning a business is the most common path to true wealth — and the second-most common path to bankruptcy. PeakWorth models the lost W-2 salary, the runway you'll burn, and a Solo 401(k) that shelters up to $70K/yr, then shows the risk-adjusted FI-Age swing of going out on your own.

Key facts

Modeled runway before you quit

12–24 mo expenses

Solo 401(k) limit (2026)

$70,000

Avg time to profitability

2–3 years

Self-employment tax

15.3% on first ~$170K

The runway calculation

Before quitting, you need 12–24 months of personal expenses in cash, plus business startup capital, plus a healthcare bridge. Most failed businesses fail because the founder ran out of personal runway, not because the business idea was wrong.

Tax-advantaged accounts for self-employed

Solo 401(k) is the gold standard: shelter up to $70K/yr (2026) in pre-tax + Roth contributions. SEP IRA is simpler but no Roth option and no catch-up. SIMPLE IRA is for small teams. The right choice can shelter $30K+/yr more than a typical W-2 401(k).

Buying vs starting

Buying an existing business with proven cash flow is usually less risky than starting from scratch — but requires capital, due diligence, and willingness to take on a multi-year SBA loan. Common multiples: small businesses sell for 2–4× annual seller's discretionary earnings.

How PeakWorth models the leap to ownership

PeakWorth models your W-2 path and a business path as separate scenarios, each against your baseline — capturing the salary and match you give up, the months of personal runway you draw down, the healthcare bridge, and a ramp to profitability — through the year-by-year deterministic simulation to age 95.

Because business outcomes are bimodal, it lets you test optimistic, base, and downside ramps and reports the FI Age and PeakWorth (highest projected lifetime net worth) for each, so 'can I afford to quit?' becomes a risk-adjusted, dated answer rather than a leap of faith.

Personalized to YOU

See exactly how this changes YOUR PeakWorth™ and FI Age

Generic articles can only go so far. PeakWorth runs every scenario against your real income, expenses, and goals — so you see the dollar-and-year impact of every decision before you make it.

Run it through PeakWorth

Frequently asked questions

How much runway do I need to start a business?

12–24 months of personal expenses in cash, separate from business capital.

What's the best retirement plan for self-employed?

Solo 401(k) for most — highest limits, Roth option, easy to set up.

Is buying a business safer than starting one?

Generally yes, if you can verify cash flow and pay a fair multiple.

Can I afford to quit my job to start a business?

Only with 12–24 months of personal expenses in cash plus separate startup capital and a healthcare bridge. PeakWorth models the runway drawdown against your ramp to profitability and shows whether — and by how much — the leap moves your FI Age.

Does self-employment help or hurt my retirement savings?

It can help substantially: a Solo 401(k) shelters up to $70K/yr (2026), often $30K+ more than a typical W-2 plan. PeakWorth models that higher contribution ceiling so you can see the FI-Age upside that partly offsets the income risk.

If you liked this, keep exploring

Calculators, true-cost pages, and audience playbooks across the PeakWorth network.

Ready to model this against your real numbers?

PeakWorth is the financial decision engine for households — your Personal Financial Strategy OS, a real-time engine that calculates every decision's impact on your future. The Decision Hub, an AI advisor, and a live projection that show you exactly how each move shapes your wealth and your FI Age.