How to Reduce Taxable Income: Pick the Right Menu First

The tax code does not price strategies by how clever you are. It prices them by what kind of income you earn. W-2 wages, 1099 or business income, rental income, and investment income each unlock a different menu of moves.

A W-2 employee reading about the Augusta rule or "write off your truck" is reading someone else's menu. Unreimbursed employee business expenses are not deductible on the federal return under current law. The One Big Beautiful Bill Act made that suspension permanent, so this is not a "check back next year" situation.

The rungs below are ordered from "everyone gets this" to "most specialized." Each rung is labeled with who actually qualifies, so you can skip straight to yours.

Everything below walks the rungs in order. Jump to yours using the anchor chips above, or keep reading top to bottom to see how they stack.

Traditional 401(k), 403(b), and 457 deferrals reduce your federal taxable wages dollar for dollar. The 2026 employee deferral limit is $24,500, with an additional $8,000 catch-up if you are 50 or older, and a higher $11,250 enhanced catch-up for ages 60 to 63 under SECURE 2.0. Which box to check, traditional or Roth, is its own decision; see our traditional vs. Roth 401(k) guide rather than re-deciding it here.

The HSA is the only triple-tax-advantaged account available: deductible going in, grows untaxed, and comes out tax-free for qualified medical costs. It requires HDHP coverage. The 2026 limits are $4,400 for self-only coverage and $8,750 for family coverage, plus a $1,000 catch-up at 55 and older.

A health or dependent-care FSA adds a smaller pre-tax bucket on top of that, with a use-it-or-lose-it caveat that makes it worth funding deliberately, not by default.

The mega backdoor Roth uses after-tax 401(k) contributions converted to Roth, on top of your regular deferral, up to the 2026 overall 415(c) limit of $72,000. It only exists if your plan document allows after-tax contributions and in-plan conversions or in-service distributions. See the full mechanics on our mega backdoor Roth guide and estimate your space with the mega backdoor Roth calculator.

For earners above the direct Roth IRA income phase-out, the backdoor Roth is the workaround, and the pro-rata rule is the tripwire that catches people who still have pre-tax IRA balances. Full mechanics live on our Roth conversions guide.

Bunching and a donor-advised fund are the one true current-year deduction lever left for charitable W-2 itemizers. Stack two or three years of giving into a single year to clear the $32,200 MFJ standard deduction, and gifting appreciated stock into the DAF also skips the capital gain.

If you hold RSUs, withholding on vests is often set too low for high earners. Run your numbers with our RSU tax calculator and see our stock compensation planning service if equity comp is a meaningful share of your income.

If you are also funding a child's education, the account you pick changes both the tax treatment and who controls the money. See our UTMA vs 529 comparison for the tradeoffs at this income level.

The short-term rental exception works because an average guest stay of seven days or less means the activity is not a "rental activity" under the passive loss rules. That means material participation, not real estate professional status, can make the losses non-passive and usable against your W-2 income. This fits a high W-2 earner willing to actually operate a property; it does not fit someone who wants a fully hands-off investment. Full mechanics: our STR loophole guide.

Cost segregation is the accelerator that front-loads depreciation into the early years of ownership, paired with whatever bonus depreciation rate is in effect. See our cost segregation guide and run a rough number with the cost segregation estimator.

Depreciation is deferral plus rate arbitrage, not free money. Recapture applies when you sell. Treat the deduction as a loan from your future self, not a gift.

This is why the same dollar of income can carry a very different tax bill. Business income unlocks the deduction-plus-structure menu that W-2 wages never see.

A solo 401(k) combines your employee deferral with an employer profit-sharing contribution, up to the same overall limit as a W-2 401(k). A SEP IRA is a deduction. A solo 401(k) is a system. See our solo 401(k) guide, run your numbers in the solo 401(k) calculator, and compare the two head to head in SEP IRA vs. solo 401(k).

An S-corp election saves the Medicare portion, and sometimes the Social Security portion above the wage base, on distributions above a reasonable salary. It does not save the full 15.3% you will see oversold elsewhere. Estimate your number with the S-corp savings calculator and see how reasonable salary is set in our reasonable salary guide.

The QBI deduction shelters up to 20% of qualified business income and is now permanent under the One Big Beautiful Bill Act. SSTBs (specified service trades or businesses) phase out starting at $403,500 of taxable income for joint filers and $201,750 for single filers, fully gone by $553,500 MFJ and $276,750 single. Full mechanics: our QBI / Section 199A guide.

The Augusta rule lets you rent your home to your business for up to 14 days a year tax-free to you. Documentation is everything. Details on our Augusta rule guide.

For very high 1099 income, a defined benefit or cash balance plan can add six-figure deductible space on top of a solo 401(k). We implement them on your return; you engage an actuary. See our defined benefit vs. defined contribution plans guide.

For the full inventory of self-employed write-offs, not repeated here, see our 1099 tax deductions guide.

Two W-2 earners bring in $450,000 combined. One spouse moves to part-time and they buy a short-term rental. Illustrative example, not a projection of your results. Results vary.

• Rung 1: both max traditional 401(k) at $24,500 each ($49,000 combined) plus the family HSA at $8,750, for $57,750 off taxable income.
• Rung 2: they bunch two years of giving, putting $30,000 of appreciated stock into a donor-advised fund in year one; illustrative itemized deductions exceed the standard deduction by $22,000 that year.
• Rung 3: the STR is purchased and materially participated in by the part-time spouse; a cost segregation study produces an illustrative $80,000 first-year loss usable against their W-2 income.

No rung here is free. The $80,000 is mostly deferral, with recapture due later. The DAF only works because they were giving to charity anyway; bunching just changed the timing. The STR required real weekend labor, not a signature on a closing document.

• Buying equipment, vehicles, or "write-offs" you do not actually need in December.
• Crypto "loopholes" and schemes marketed as IRS-proof. If the pitch relies on secrecy, it is not planning. Legitimate tax-loss harvesting is a real strategy; see our capital gains tax guide.
• Abusive trust arrangements and "non-grantor trust stacking" pitches. Several of these show up on the IRS's annual list of enforcement priorities.
• A home office for W-2 employees. It is not deductible federally under current law, full stop.

• You are stacking rung 3 or rung 4, real estate or business structure, on top of a full-time W-2 income.
• You have income in more than one state.
• You are combining equity compensation with real estate or a side business in the same year.

Any one of these turns a checklist into a coordination problem. See our high-income tax planning services or browse the full high-income strategy list for more depth on any single rung.