The Wealth EnginePLAYBOOK #500
🔒 LITE
◆ Small Business Tax Fortress · Book 5 of 5

You wear two hats.
The IRS lets you
fund both.

A one-person business can legally shelter far more than any job's 401(k) — because you're the employee and the employer. This is the honest, IRS-grounded math. No "be-your-own-bank" gimmicks. Just real 2026 numbers.

Verified against 2026 IRS limits 5 live tools Minnesota callouts

The Two-Hats Engine

2026 · live

Slide your net self-employment profit. Watch the shelter build.

$
🧢 Employee deferral
$24,500
👔 Employer share
$20,447
+
Taxable income sheltered
Max Solo 401(k) shelter
vs a job's $24,500 deferral cap
$44,947
The Toolkit · 5 live engines

Your numbers pick the winner.

Solo 401(k) vs SEP-IRA isn't a matter of opinion — it's arithmetic. Plug in your reality and let the math crown the champion. The first tool is free forever. The rest unlock with the Engine.

Free forever
TOOL 01

Solo 401(k) vs SEP-IRA Duel

Same income. Two accounts. One winner. See exactly how much more the Solo shelters.

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Explorer
TOOL 02

Two-Hats Max Contribution

The full breakdown: employee deferral + employer profit-share, adjusted for self-employment tax the way the IRS actually does it.

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Unlock with Explorer or the Engine — or start your 3-day free trial.
Engine
TOOL 03

Tax Bill → 10-Year Wealth Engine

Turn this year's tax bill into next decade's fortune. See the tax you save, the growth you compound, and the wealth you keep.

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The flagship engine unlocks with Full Lifetime Access.
Engine
TOOL 04

Spouse-on-Payroll Doubler

Put a working spouse on the books and each of you gets a full set of limits. See the household shelter nearly double.

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$
Unlock with Full Lifetime Access.
Explorer
TOOL 05

Open-By / Fund-By Deadline Tracker

Miss a deadline and the shelter's gone. Here are the exact 2026-tax-year dates for your entity type.

Unlock with Explorer or the Engine — or a 3-day free trial.
Free forever
FIELD GUIDE

The Traps 🕳️

The honest antidote. Three pitches that separate the self-employed from their money — and who profits.

"Be your own bank." Whole-life "infinite banking" dresses a high-commission insurance product as a retirement plan. The agent's cut can eat your first years of cash value. A Solo 401(k) has none of that drag.
Self-directed IRA "opportunities." Promoters push exotic assets into your IRA, then vanish. The IRS doesn't vet these — you carry the risk and the penalties.
Prohibited transactions. Renting your IRA's property to yourself, or lending it to family, can disqualify the entire account — taxed and penalized in one shot. The full landmine map is in the book.
Education, not advice. These calculators use current 2026 IRS figures and standard self-employed formulas (Pub 560) to illustrate concepts. They are not tax, legal, or investment advice, and every situation has wrinkles — S-corp wages, multiple 401(k)s, state nuances, high-income phase-outs. Before you fund anything, route your specific numbers to a licensed CPA or Enrolled Agent. Need legal backup on the business side? See LegalShield below.
Access · own the engine

One good contribution pays for this a hundred times over.

At a 29% combined rate, a single $44,000 Solo 401(k) contribution saves you roughly $12,760 in tax this year. The Engine costs less than a nice dinner.

Free Hook
$0
The Duel calculator + The Traps field guide. Yours forever, no email.
  • Solo vs SEP Duel
  • The Traps exposé
  • Two-Hats Engine widget
Start free
Explorer / Lite
$17
Add the Max-Contribution and Deadline tools. Perfect if you just need the numbers.
  • Everything in Free
  • Two-Hats Max Contribution
  • Deadline Tracker
Get Explorer
Best value
Full Lifetime Access
$47 once
The complete Engine. All 5 tools, the wealth-projection flagship, the spouse doubler — forever.
  • All 5 live calculators
  • Tax→Wealth projection engine
  • Spouse-payroll doubler
  • Free lifetime updates
Own the Engine →
First 50 downloads get Full Lifetime Access FREE — 37 spots left
💰 Smart money owns the whole fortress. Get all 5 books in the Small Business Tax Fortress series — Write-Off Vault, S-Corp, Audit-Proof, Quarterly, and this one — for $147 instead of $235. Complete your fortress →

This app is a side-hustle engine. Pair it with the three businesses below and there's a clear path to $500–$2,000/month helping others shelter their income too.

Complete your fortress

The 5-book Tax Fortress.

Each book seals one wall. This is the last one — the wealth engine that turns everything you saved into everything you'll keep.

The trifecta · build income while you shelter

Three engines that fund the life.

Everything lives at the hub → free5free.pages.dev

"All limitations are self-imposed."

— a maxim Cường lives by

"The more things you do, the more life you live!"

— CườngFBI

"A life worth living, is a life always worth recording."

— CườngFBI

Who's behind Playbook #500

A refugee who landed in America at eleven — a Malaysian camp, a foster family, three jobs at once. A business degree from the Carlson School at the University of Minnesota. A decade in the FBI's Foreign Counterintelligence division. Twenty years reuniting his entire family, one person at a time. Now semi-retired, helping his wife run their nail salon in Bloomington, Minnesota — and writing the playbooks he wishes he'd had. This is book #500.

May you always be loving, laughing & living your life to the fullest!