After-Tax Engineering

Framework

The Learning Path

A stage-by-stage order of operations for building after-tax wealth. Work through each stage in sequence — do not skip to Stage 4 before Stage 1 is complete.

The rule: Every stage must be solid before the next one adds value. A cost segregation study does not help if you have not maxed your HSA. A 1031 exchange does not help if you have unrealized losses sitting unharvested in a taxable account.

1

Foundation

Do this before anything else

The highest-certainty, highest-impact moves available to any high-income professional. These are not exciting. They are the right order.

Max your 401k or 403b

Traditional if your marginal rate is high today. Roth if you expect higher rates later.

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Max your HSA if eligible

The only triple-tax-advantaged account. Invest it — do not spend it.

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Build a real emergency fund

3–6 months of expenses in a HYSA. Not invested. Not optional.

Backdoor Roth IRA

If you exceed the direct contribution income limit. Two steps, done annually.

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Mega Backdoor Roth

Only if your 401k plan allows after-tax contributions. Not all plans do.

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2

Tax-Efficient Portfolio

Reduce drag before adding complexity

Most investors focus on what to buy. Tax-aware investors also focus on where to hold it, when to sell, and how much of their return they actually keep.

Asset location across account types

Bonds and REITs in tax-advantaged. Growth equities in taxable. This one decision is worth 0.5–1% per year.

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Tax-efficient ETF selection

Low turnover, low dividend yield, no embedded capital gains. Broad index ETFs are already well-engineered for this.

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Tax-loss harvesting discipline

Harvest losses when they appear. Reinvest immediately into a similar — not identical — fund. Avoid the wash sale.

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Dividend drag awareness

High-yield funds in taxable accounts generate ordinary income every year. This is a real drag on after-tax return.

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3

Equity Compensation

If you receive RSUs, ESPPs, or options

Stock compensation creates concentration risk and tax timing decisions that most financial content handles poorly. The default answer on RSUs is almost always: sell on vest.

RSU sell-on-vest default

RSUs are ordinary income at vest. Holding them is a new investment decision — not a tax strategy. Evaluate it as one.

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Concentration risk framework

More than 5–10% of net worth in any single stock is concentrated. Employer stock is doubly risky — your income and your portfolio correlated.

ESPP decision rules

The discount is guaranteed return. Sell immediately after purchase period in most cases.

AMT awareness for ISOs

Incentive stock options can trigger AMT on paper gains. Model this before exercising.

4

Real Estate

Only after Stages 1–3 are solid

Real estate has genuine tax advantages. But the investment must make sense on cash flow, risk, and exit liquidity before tax benefits are considered. Never buy real estate only to save taxes.

Underwrite first — tax benefits second

Run the rental property calculator. If the deal does not pencil before depreciation, it does not pencil.

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Depreciation and passive loss rules

Rental losses are passive. Most W-2 earners above $150k AGI cannot deduct them against ordinary income without REP status or STR qualification.

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Short-term rental strategy

The STR loophole is real — but requires material participation, specific hour tests, and consistent record-keeping. It is not automatic.

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Cost segregation

Accelerates depreciation. Valuable at scale. Usually requires a $300k+ property and a study that costs $5–15k to make sense.

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5

Advanced Optimization

Years 3–5+, after the foundation is built

These strategies are real, legal, and used by sophisticated investors. They also require more expertise, carry more audit risk, and reward those who have mastered Stages 1–4 first.

Real Estate Professional Status (REP)

750 hours per year in real estate activities, more than any other profession. This is a material time commitment — not a paperwork election.

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1031 exchange on property exits

Defers — does not eliminate — capital gains on sale. Rules are strict: 45-day identification, 180-day close. Depreciation recapture still applies eventually.

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Donor-Advised Fund bunching

Contribute 3–5 years of charitable giving in one year to exceed the standard deduction. Invest the DAF balance, distribute to charities over time.

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Tax lien research

A niche alternative cash-flow vertical. Real yields exist — but require state-by-state research, illiquid capital, and significant due diligence.

Month 4

Estate planning basics

Step-up in basis at death eliminates embedded capital gains. Relevant when appreciated assets are material.

6

Use the Calculators

Before every major financial decision

A framework tells you how to think. A calculator forces you to use your actual numbers. Run the relevant tool before committing to any strategy in Stages 1–5.

Rental Property After-Tax Return Calculator

Full underwriting: cash flow, depreciation, DSCR, after-tax CoC return, buy/walk signal.

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ETF Tax Drag Calculator

Quantify the cost of holding the wrong fund in the wrong account.

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Tax-Loss Harvesting Savings Calculator

Model the actual benefit given your losses, bracket, and reinvestment plan.

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RSU Sell vs Hold Calculator

After-tax analysis of the hold decision as a standalone investment.

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Educational framework only. This learning path is a general-purpose sequence for high-income professionals. Your optimal order depends on your specific tax situation, income, employer benefits, and goals. Consult a CPA or financial advisor before making major decisions.