If your household income exceeds $200,000, you've almost certainly hit the ceiling on at least one tax-advantaged strategy that works perfectly for everyone else. The standard advice -- max out your 401(k), contribute to a Roth IRA, take the deductions you're entitled to -- breaks down at higher incomes because Congress built income limits into most of the good stuff. What follows are five strategies that exist specifically for earners who've been phased out of the basics.
Who Qualifies
Anyone whose modified adjusted gross income (MAGI) exceeds the direct Roth IRA contribution limits. For 2025, the phase-out range is $150,000-$165,000 for single filers and $236,000-$246,000 for married filing jointly. For 2026, those ranges increase to $153,000-$168,000 (single) and $242,000-$252,000 (MFJ). Technical detail
If your income exceeds the upper end of those ranges, you cannot contribute directly to a Roth IRA at all. But nothing in the tax code prevents you from contributing to a traditional IRA on a non-deductible basis and then converting it to a Roth.
How It Works
The mechanics are straightforward:
- Contribute to a traditional IRA. At high incomes, this contribution is non-deductible (you don't get a tax break going in), but it's still permitted regardless of income.
Technical detail
There is no income limit for traditional IRA contributions. The income limits under IRC Section 219(g) only determine whether the contribution is deductible, not whether it's allowed. - Convert the traditional IRA to a Roth IRA. There is no income limit on Roth conversions.
Technical detail
IRC Section 408A(d)(3). The income limit on conversions was eliminated by the Tax Increase Prevention and Reconciliation Act of 2005, effective for tax years beginning after December 31, 2009. - Since the contribution was non-deductible (after-tax money), the conversion is largely tax-free -- you only owe tax on any earnings that accrued between contribution and conversion.
For 2025, the maximum contribution is $7,000 ($8,000 if age 50+). For 2026, it increases to $7,500 ($8,600 if age 50+). IRS Notice 2024-80 (2025 limits); IRS Notice 2025-67 (2026 limits).
Dollar Impact
A $7,500 annual backdoor Roth contribution growing at 7% for 20 years produces roughly $307,000 in completely tax-free money. The value isn't in the deduction (there is none) -- it's in the decades of tax-free growth and the absence of Required Minimum Distributions during your lifetime.
Common Mistake: The Pro-Rata Rule
The pro-rata rule is the most common backdoor Roth mistake. If you have any pre-tax money in any traditional, SEP, or SIMPLE IRA, the IRS treats all your traditional IRA balances as a single pool. You cannot cherry-pick which dollars to convert. Roll pre-tax IRA balances into your employer's 401(k) before doing the backdoor Roth.
Technical detail
Example: You have $93,000 in a rollover IRA from an old employer (all pre-tax) and you contribute $7,000 non-deductible to a new traditional IRA. Your total IRA balance is $100,000, of which 7% is after-tax. If you convert $7,000 to Roth, only $490 is tax-free -- the other $6,510 is taxable.
The fix: Roll your pre-tax IRA balances into your current employer's 401(k) before doing the backdoor Roth. Employer plan balances are excluded from the pro-rata calculation. Once your traditional IRA balance is zero (or all after-tax), the conversion is clean.
Report the non-deductible contribution on Form 8606 Part I, and report the conversion on Form 8606 Part II. Technical detail
2. Mega Backdoor Roth
Who Qualifies
Employees whose 401(k) plan allows after-tax contributions and either in-plan Roth conversions or in-service distributions. Not every employer plan supports this -- you need to check your plan's Summary Plan Description or ask your benefits department directly.
How It Works
The total annual limit on all contributions to a 401(k) -- including employee deferrals, employer match, and after-tax contributions -- is set by IRC Section 415(c). For 2025, that limit is $70,000. For 2026, it rises to $72,000. IRS Notice 2024-80 (2025); IRS Notice 2025-67 (2026). These limits exclude catch-up contributions, which sit on top.
Here's the math for a 2026 example (under age 50):
- You defer $24,500 (the 2026 employee elective limit)
- Your employer matches $10,000
- That leaves $72,000 - $24,500 - $10,000 = $37,500 available for after-tax contributions
You contribute that $37,500 as after-tax money to your 401(k), then immediately convert it to a Roth account -- either a Roth 401(k) within the plan or a Roth IRA via in-service distribution.
For those age 50+, the catch-up contribution of $8,000 increases your elective deferral capacity but does not count against the $72,000 Section 415(c) limit, so your after-tax space remains the same. Technical detail
Dollar Impact
Contributing $37,500 per year to a mega backdoor Roth for 15 years at 7% growth produces roughly $940,000 in tax-free retirement funds. Combined with the regular backdoor Roth ($7,500/year), that's potentially $45,000 per year flowing into Roth accounts -- over $1.1 million in 15 years.
Common Mistakes
- Assuming your plan allows it. Many large employers do, but many don't. If your plan doesn't permit after-tax contributions or in-service rollovers, this strategy is unavailable.
- Delaying the conversion. If after-tax contributions sit in the 401(k) and generate earnings, those earnings are pre-tax and will be taxable upon conversion. Convert as soon as possible -- ideally automatically after each payroll contribution.
- Confusing after-tax with Roth. After-tax 401(k) contributions are not the same as Roth 401(k) deferrals. After-tax contributions go into a separate bucket and must be converted to become Roth.
2026 Roth Catch-Up Requirement
Starting January 1, 2026, if your FICA wages from the same employer exceeded $150,000 in the prior year, all catch-up contributions must be made on a Roth basis. Technical detail
3. HSA Triple Tax Advantage
Who Qualifies
Anyone enrolled in a qualifying High Deductible Health Plan (HDHP). For 2025, a qualifying HDHP must have a minimum deductible of $1,650 (individual) or $3,300 (family). For 2026, it's $1,700 (individual) or $3,400 (family). IRS Revenue Procedure 2024-25 (2025 limits); IRS Revenue Procedure 2025-19 (2026 limits).
There is no income limit for HSA eligibility. You can earn $500,000 and still contribute to an HSA, as long as you have a qualifying HDHP and are not enrolled in Medicare or claimed as a dependent.
How It Works
The HSA is the only account in the tax code that offers all three tax advantages simultaneously:
- Tax-deductible contribution: Reduces your AGI dollar-for-dollar. If you're in the 35% federal bracket, a $4,400 contribution saves you $1,540 in federal tax alone.
- Tax-free growth: Investment earnings inside the HSA are never taxed -- no capital gains, no dividend taxes.
- Tax-free withdrawals: Distributions used for qualified medical expenses are completely tax-free.
2025 contribution limits are $4,300 (individual) and $8,550 (family). For 2026, the limits increase to $4,400 (individual) and $8,750 (family). If you're 55 or older, add $1,000 to either limit. IRS Revenue Procedure 2024-25 (2025); IRS Revenue Procedure 2025-19 (2026).
The HSA is the only account in the tax code that offers all three tax advantages simultaneously: deductible going in, tax-free growth, and tax-free withdrawals for medical expenses. After age 65, non-medical withdrawals are penalty-free (taxed as ordinary income), making it function as a flexible retirement account on top of everything else.
The real power of an HSA for high-income earners is using it as a stealth retirement account. There's no requirement to spend HSA money in the year you incur the medical expense. You can pay medical bills out of pocket today, keep the receipts, and reimburse yourself from the HSA years or decades later -- tax-free.
After age 65, HSA withdrawals for non-medical expenses are taxed as ordinary income (like a traditional IRA) but carry no penalty. This makes the HSA function as a flexible retirement account: tax-free if used for medical expenses, penalty-free ordinary income if used for anything else.
Dollar Impact
A family contributing $8,750 per year for 20 years at 7% growth accumulates roughly $359,000. In the 35% bracket, the annual deduction saves $3,063 in federal taxes per year -- $61,250 over 20 years in deduction value alone, before accounting for the tax-free growth.
Common Mistakes
- Using the HSA as a spending account. Paying current medical bills from the HSA instead of investing the balance and paying out of pocket. Every dollar withdrawn today is a dollar that can't compound tax-free for decades.
- Not investing HSA funds. Many HSA custodians default to a cash savings account earning near-zero interest. You typically need to meet a minimum cash balance threshold, then invest the rest in index funds.
- Losing eligibility mid-year. If you switch to a non-HDHP plan or enroll in Medicare, your contribution limit is prorated. Over-contributing triggers a 6% excise tax on the excess. IRC Section 4973(a)(5).
4. Charitable Giving Strategies
Who Qualifies
Anyone who itemizes deductions and has charitable intent. For high-income earners, three specific strategies generate outsized tax benefits: donor-advised funds, bunching, and appreciated stock donations.
Donor-Advised Funds (DAFs)
A donor-advised fund is a charitable investment account. You make an irrevocable contribution, receive an immediate tax deduction, and then recommend grants to charities over time. The contribution is deductible in the year you fund the DAF, even if the money doesn't reach a charity until years later.
For high-income earners, this creates a powerful timing advantage. You can front-load several years of charitable giving into a single high-income year to maximize the deduction's value, then distribute to charities at your own pace.
Cash contributions to a DAF are deductible up to 60% of AGI. Contributions of appreciated long-term capital gain property are deductible up to 30% of AGI. Excess deductions carry forward for five years. Technical detail
Bunching Strategy
The standard deduction for 2026 is $16,100 (single) or $32,200 (MFJ). Tax Foundation 2026 projections based on IRS inflation adjustments. If your total itemized deductions hover near the standard deduction, charitable giving in small annual increments may produce zero additional tax benefit -- you'd take the standard deduction anyway.
Bunching fixes this: instead of giving $10,000 per year, give $30,000 every third year. In the bunching year, your itemized deductions exceed the standard deduction by a wide margin and you get the full benefit. In the off years, you take the standard deduction. A DAF is the natural vehicle for bunching -- fund it in the bunching year, then distribute to charities annually.
Appreciated Stock Donations
Donating appreciated stock held for more than one year is one of the most tax-efficient charitable strategies available. You avoid the capital gains tax you'd owe if you sold the stock, and you deduct the full fair market value.
Example: You bought stock for $20,000 that's now worth $100,000. If you sell and donate the cash, you owe capital gains tax on the $80,000 gain (at 20% federal long-term capital gains + 3.8% NIIT = $19,040 in tax) and then deduct $100,000. If you donate the stock directly, you deduct $100,000 and owe zero capital gains tax. The direct donation saves $19,040. Technical detail
Dollar Impact
For someone in the 37% bracket donating $100,000 in appreciated stock (with $80,000 of unrealized gain):
- Federal income tax deduction value: $37,000
- Capital gains tax avoided (20% + 3.8% NIIT): $19,040
- Total tax benefit: $56,040
Starting in 2026, the OBBBA introduced a 0.5% AGI floor on charitable deductions. Donors can only deduct contributions to the extent they exceed 0.5% of AGI. For someone with $500,000 AGI, the first $2,500 of charitable contributions produces no deduction. This makes bunching large contributions into a single year even more valuable.
Starting in 2026, the One Big Beautiful Bill Act introduces a 0.5% AGI floor on charitable deductions. Donors can only deduct contributions to the extent they exceed 0.5% of AGI. Technical detail
Common Mistakes
- Selling the stock first, then donating cash. This triggers the capital gain and wastes the primary tax advantage.
- Donating short-term gain property. Stock held one year or less is deductible only at your cost basis, not fair market value.
- Ignoring the AGI limits. Deductions for appreciated property are limited to 30% of AGI. If you donate $300,000 of stock but your AGI is $400,000, you can only deduct $120,000 this year. The rest carries forward.
5. Net Investment Income Tax (NIIT) Planning
Who Qualifies
The NIIT applies to individuals with MAGI above $200,000 (single) or $250,000 (married filing jointly). These thresholds are not indexed for inflation -- they've been the same since the tax took effect in 2013 and will remain there until Congress changes them. Technical detail
How It Works
The NIIT is a 3.8% surtax on the lesser of:
- Your net investment income, or
- The amount by which your MAGI exceeds the threshold ($200,000 single / $250,000 MFJ)
Net investment income includes capital gains, dividends, interest, rental income, royalties, passive business income, and non-qualified annuity distributions. It does not include wages, self-employment income from an active business, Social Security benefits, tax-exempt interest, or distributions from qualified retirement plans. Technical detail
Dollar Impact Example
A married couple with $400,000 in wages and $100,000 in investment income has a MAGI of $500,000.
- MAGI exceeds the $250,000 MFJ threshold by $250,000
- Net investment income is $100,000
- NIIT = 3.8% x $100,000 (the lesser amount) = $3,800
If the same couple could reduce their MAGI to $300,000 through retirement contributions and other above-the-line deductions, the calculation changes:
- MAGI exceeds threshold by $50,000
- Net investment income is still $100,000
- NIIT = 3.8% x $50,000 = $1,900
That's a $1,900 savings from reducing MAGI by $100,000 through strategies that may have their own tax benefits.
Strategies to Reduce NIIT Exposure
- Maximize retirement contributions. 401(k) deferrals, HSA contributions, and traditional IRA deductions all reduce MAGI. A $24,500 401(k) deferral plus $8,750 family HSA contribution reduces MAGI by $33,250 -- potentially saving $1,264 in NIIT alone (3.8% x $33,250).
- Tax-loss harvesting. Realized capital losses offset capital gains, directly reducing net investment income.
Technical detail
IRC Section 1211(b). Net capital losses can offset up to $3,000 of ordinary income per year, with unlimited carryforward. - Municipal bond interest. Tax-exempt interest from municipal bonds is excluded from both net investment income and MAGI for NIIT purposes.
Technical detail
IRC Section 1411(c)(1)(A) excludes tax-exempt interest from NII. However, note that tax-exempt interest is included in the combined income calculation for Social Security benefit taxation under IRC Section 86. - Shift income to active business. Income from a trade or business in which you materially participate is not net investment income. For taxpayers with passive investments that could be restructured as active businesses, this can eliminate the NIIT on that income.
- Charitable giving. Donating appreciated securities avoids realizing capital gains that would increase both NII and MAGI. Charitable deductions can also reduce taxable income, though they don't directly reduce MAGI.
- Timing of capital gains. Deferring a stock sale to a year when your income will be lower can reduce or eliminate NIIT exposure. This is particularly relevant for equity compensation -- planning the exercise of stock options or the sale of RSU shares across tax years can spread the income and reduce the surtax.
Common Mistakes
- Ignoring the NIIT when planning equity compensation events. Exercising ISOs, selling RSU shares, or disqualifying dispositions all create income that can trigger or increase the NIIT. Plan these events across calendar years when possible.
- Assuming retirement plan distributions trigger NIIT. They don't. Qualified plan distributions (401(k), IRA) are not net investment income. IRC Section 1411(c)(5) excludes distributions from qualified plans, 403(a) plans, 403(b) plans, and 457(b) plans.
- Overlooking the Additional Medicare Tax interaction. High earners may also owe the 0.9% Additional Medicare Tax on wages above $200,000 (single) or $250,000 (MFJ) under IRC Section 3101(b)(2). The two taxes have the same thresholds but apply to different income types -- the NIIT applies to investment income, the Additional Medicare Tax applies to earned income.
Putting It All Together
- All investment income exposed to NIIT (3.8%)
- Capital gains realized on charitable stock sales
- Roth growth opportunity lost each year
- HSA used as spending account, no compounding
- $24,500 traditional 401(k) deferral (reduces AGI)
- $37,500 mega backdoor Roth conversion
- $7,500 backdoor Roth IRA
- $8,750 family HSA (reduces AGI)
- $50,000 appreciated stock to DAF (avoids capital gains)
- Contribute $24,500 to a traditional 401(k), reducing AGI
- Make $37,500 in after-tax 401(k) contributions and convert to Roth (mega backdoor)
- Contribute $7,500 to a backdoor Roth IRA
- Fund an HSA with $4,400 (individual) or $8,750 (family), reducing AGI further
- Donate $50,000 in appreciated stock to a DAF, avoiding capital gains and getting a deduction
The combined effect reduces current taxes, eliminates future taxes on Roth growth, avoids capital gains, and can reduce or eliminate the NIIT. The dollar values compound: someone executing all five strategies over a 20-year career could accumulate well over $1 million in tax-free Roth accounts while saving hundreds of thousands in capital gains taxes and NIIT along the way.
Each strategy has its own eligibility requirements, paperwork, and traps. A CPA who works with high-income W-2 earners and equity compensation regularly will have implemented these dozens of times and can identify which ones apply to your specific situation. The cost of a CPA for this kind of planning typically pays for itself several times over in a single tax year.