Retirement Tax Planning for Bay Area Professionals

Mega-Backdoor Roth: Up to $70,000 Tax-Advantaged Per Year

The standard 401(k) employee deferral limit in 2026 is $23,500 ($31,000 if you are 50 or older). But the IRS sets a much higher total contribution cap per plan: $70,000. The gap between what you contribute as an employee and the $70,000 ceiling can be filled with after-tax 401(k) contributions, and those after-tax contributions can then be converted to Roth inside the plan or rolled out to a Roth IRA. That is the mega-backdoor Roth.

The mechanic relies on IRS Notice 2014-54, which permits after-tax basis to be separated from pre-tax earnings during an in-service rollover. When executed correctly, you move after-tax contributions (already taxed money) to Roth, and the earnings on those contributions to a traditional IRA or leave them in the plan. Only the earnings, not the contribution itself, create a tax event on conversion.

The "annual reset" trap catches people who assume they can accumulate after-tax contributions for several years before converting. Earnings compound on the after-tax balance and become taxable on rollout. Timely conversions, ideally within days or weeks of each contribution, keep the taxable component near zero.

Plan support is required. Your employer's 401(k) must permit both after-tax contributions and either in-plan Roth conversions or in-service withdrawals. Most plans administered by Fidelity, Schwab, or Vanguard support this. Google, Meta, Amazon, Apple, LinkedIn, Salesforce, and Nvidia all have plans with documented mega-backdoor Roth capability. Microsoft and some others have more restrictive plan documents. We verify the plan document before building your contribution strategy.

Plan document review before strategy execution

Conversion timing to minimize taxable earnings

Coordination with employer match and profit-sharing to avoid exceeding the $70,000 cap

Retirement contribution strategy planning

Backdoor Roth IRA: Clearing the Pro-Rata Trap

High-income earners are phased out of direct Roth IRA contributions. In 2026, the phase-out begins at $150,000 MAGI for single filers and $236,000 for married filing jointly. The backdoor Roth IRA solves this by making a nondeductible contribution to a traditional IRA, then converting it to Roth immediately. The $7,000 annual limit applies ($8,000 for those 50 and older).

The pro-rata rule is the critical wrinkle. If you hold any pre-tax IRA balance across all traditional, SEP, and SIMPLE IRAs, the IRS treats every IRA you own as a single pool when calculating the taxable portion of a conversion. A $7,000 nondeductible contribution sitting alongside $200,000 of pre-tax IRA assets means roughly 96.7% of your conversion is taxable. That turns a backdoor Roth into an expensive mistake.

The fix for most Bay Area tech employees: roll the pre-tax IRA balance into your employer's 401(k). Most large-company plans accept incoming rollovers from traditional IRAs. Once the pre-tax balance is in the 401(k), it no longer factors into the pro-rata calculation, and the backdoor Roth contribution converts cleanly. We run this analysis every year because IRA balances, plan eligibility, and plan documents change.

Pro-rata rule analysis across all IRA accounts

Pre-tax IRA rollover eligibility review

Form 8606 preparation for accurate basis tracking

Roth Conversions: Turning Low-Income Years Into Lifetime Tax Savings

A Roth conversion moves pre-tax retirement assets into a Roth account, triggering ordinary income tax in the year of conversion but eliminating future taxation on that money and its growth. The value of a conversion depends entirely on the rate you pay today versus the rate you would have paid on distributions in retirement.

For Bay Area tech employees, the best conversion windows are gap years between jobs, sabbaticals, years with large foreign tax credits that absorb regular income tax, and years with significant capital losses. These scenarios compress your effective rate on the converted amount. Partial conversions that fill a specific bracket (the 22% or 24% bracket, for example) without triggering the 32% bracket are the most common tactic.

California fully conforms to federal Roth conversion treatment. There is no California exemption or special treatment. Conversions are taxed as ordinary income at both the federal and California state level in the year of conversion. That state tax component matters significantly for Bay Area clients subject to California's 9.3%, 10.3%, or 13.3% marginal rates. We model the blended cost before recommending any conversion amount.

The five-year rule governs when converted basis can be withdrawn penalty-free. Each conversion amount has its own five-year clock starting January 1 of the year of conversion. Roth IRA earnings, distinct from converted basis, follow a separate five-year rule tied to the first year any Roth IRA was established. For clients building a Roth conversion ladder to fund early retirement, the sequencing of these clocks is part of the plan.

Multi-year bracket modeling to identify optimal conversion windows

Foreign tax credit and capital loss coordination

Five-year clock sequencing for early-retirement access

Net Unrealized Appreciation: LTCG Rates on 401(k) Company Stock

Net Unrealized Appreciation, or NUA, is a tax election available to employees who hold employer stock inside a 401(k) or other qualified retirement plan. Instead of rolling the stock into an IRA at retirement (where all future distributions would be taxed as ordinary income), you take an in-kind lump-sum distribution of the employer stock. You pay ordinary income tax on the cost basis of that stock at the time of distribution, not the fair market value. The appreciation above that original basis is taxed at long-term capital gains rates when you eventually sell, regardless of how long you hold the stock after distribution.

This election is most valuable when the NUA is large relative to the cost basis. An employee who accumulated Apple stock in a 401(k) at an average cost of $30 per share, worth $200 per share at retirement, would pay ordinary income tax on $30 and LTCG rates on $170 rather than ordinary income tax on the full $200. At California's top combined marginal rate versus the 23.8% federal LTCG plus 13.3% California LTCG rate, the spread can be substantial. For how California treats capital gains across equity and investment assets in 2026, see our California capital gains 2026 overview.

NUA applies to any qualifying employer security held inside a plan, not just publicly traded stock. Tesla and pre-IPO grants that ended up inside a plan, legacy ESOP-style holdings at companies like older tech firms, and concentrated positions at companies with long tenure are common NUA candidates we evaluate at retirement. Eligibility requires a triggering event (separation from service, reaching 59.5, total disability, or death) and a lump-sum distribution of the entire plan balance in a single tax year.

NUA vs. rollover comparison modeling

Lump-sum distribution election mechanics

California LTCG impact on the NUA decision

Solo 401(k) and Defined-Benefit Plans for Self-Employed Founders

Self-employed founders and owners of small businesses have access to retirement contribution limits that far exceed what W-2 employees can shelter. A solo 401(k) allows the owner to contribute both as an employee (up to $23,500 in 2026) and as an employer (up to 25% of net self-employment income), for a combined limit of $70,000. Add a defined-benefit pension plan on top of the 401(k), and the combined annual deductible contribution can reach $200,000 to $400,000 depending on your age and income.

Defined-benefit plans calculate contributions actuarially based on the benefit you target at retirement, your age, and your income. The closer you are to retirement and the higher your target benefit, the larger your required and allowable contribution. A 55-year-old founder earning $500,000 net can often shelter $300,000 or more per year across a combined DB-plus-401(k) structure. The deductions reduce both federal and self-employment income tax directly.

Cash-balance plans, a hybrid defined-benefit design, are increasingly popular among Bay Area founders because they express the benefit as a hypothetical account balance rather than a monthly payment. This makes them easier to understand and coordinate with 401(k) profit-sharing. We work with actuaries to design and file the plan documents, and we coordinate the deduction against your Schedule C or S-corp W-2 income to maximize the benefit.

Solo 401(k) setup and contribution optimization

Defined-benefit and cash-balance plan design

Actuarial coordination and annual contribution calculations

RMD Planning Under SECURE 2.0

Required minimum distributions force taxable withdrawals from pre-tax retirement accounts whether you need the income or not. SECURE 2.0 pushed the RMD starting age to 73 for those born in 1951 through 1959, and to 75 for those born in 1960 or later. That additional deferral window creates more runway for Roth conversions before distributions are mandatory, which is why RMD age and Roth conversion planning are tightly linked strategies.

For clients who do not need RMD income to fund living expenses, qualified charitable distributions offer the most direct offset. A QCD allows IRA owners age 70.5 or older to transfer up to $105,000 per year (2026 limit, indexed to inflation) directly from an IRA to a qualifying charity. The QCD counts toward satisfying the RMD but is excluded from adjusted gross income entirely. That exclusion matters for Medicare IRMAA calculations, provisional Social Security income calculations, and California tax, all of which use AGI as a starting point.

RMD projections coordinated with Roth conversion windows

QCD execution for Medicare IRMAA and Social Security management

Multi-account RMD aggregation and withdrawal sequencing

Inherited IRA Planning Under the 10-Year Rule

SECURE Act 2.0 eliminated the "stretch IRA" for most non-spouse beneficiaries. If you inherited an IRA from someone who died in 2020 or later, you are likely subject to the 10-year rule: the entire inherited account must be distributed by December 31 of the tenth year following the year of death. There are no required annual distributions during those ten years, but the account must be empty by the deadline.

The 10-year window is actually a planning opportunity if you use it deliberately. Spreading distributions across years when your income is lower (a career pause, a year with large deductions, or early retirement) can reduce the marginal rate on each distribution. Bunching distributions in a single year into the top bracket is almost always the wrong answer, but that is what happens without a plan.

Eligible designated beneficiaries (EDBs) still qualify for the stretch IRA treatment. That category includes surviving spouses, minor children of the original owner, disabled individuals, chronically ill individuals, and beneficiaries not more than 10 years younger than the decedent. If you fall into one of these categories, the strategy looks very different. Spouses in particular have additional options, including treating the inherited IRA as their own, which resets RMD rules to their own age.

EDB vs. 10-year-rule classification

Year-by-year distribution planning to minimize bracket exposure

Spousal rollover analysis

HSA Strategy: Triple-Tax Advantage as a Retirement Tool

A Health Savings Account is the only account that offers three tax benefits simultaneously: contributions are pre-tax (or deductible), growth is tax-free, and withdrawals for qualified medical expenses are tax-free. After age 65, HSA withdrawals for any purpose are taxed as ordinary income with no penalty, making the HSA function like a traditional IRA with an extra layer of benefit for medical costs.

The highest-value HSA strategy for Bay Area tech employees with adequate liquid savings: contribute the maximum each year ($4,300 for self-only or $8,550 for family coverage in 2026, plus $1,000 catch-up if 55 or older), invest the balance aggressively rather than leaving it in cash, and pay all current medical expenses out of pocket without filing for reimbursement. Keep every receipt. Years or even decades later, you can reimburse yourself from the HSA for those historical expenses with no time limit, converting tax-free HSA dollars into cash while the account has grown on the untouched balance.

At retirement, the accumulated HSA balance can be used to pay Medicare premiums, long-term care premiums, and qualified medical expenses, all tax-free. For couples with high healthcare costs in retirement, a well-funded HSA stack can shelter tens of thousands of dollars per year that would otherwise be taxable IRA distributions.

HSA investment strategy and recordkeeping systems

Historical expense reimbursement planning

HSA-to-retirement income sequencing at 65

Does my employer offer mega-backdoor Roth?

The plan must allow after-tax (non-Roth) contributions beyond the standard $23,500 deferral, and it must allow either in-plan Roth conversions or in-service withdrawals of after-tax funds. You can check your Summary Plan Description or contact your benefits team and ask specifically: "Does the plan allow after-tax contributions and in-plan Roth conversions?" Most Fidelity, Schwab, and Vanguard-administered plans at large Bay Area employers do. If the answer is yes to both, you can run the mega-backdoor Roth. If the plan allows after-tax contributions but only permits in-service withdrawals at age 59.5, the strategy is still available but more limited in timing. We review the plan document when you engage us so you are not relying on benefits-team phone guidance alone.

When is a Roth conversion better than leaving money pre-tax?

A Roth conversion is better than deferral when the rate you pay today is lower than the rate you expect to pay on distributions in retirement. For most Bay Area tech employees still working, the answer is usually: not now, because current income is high. But the calculus shifts meaningfully in gap years (between jobs or during parental leave), years with large foreign tax credits that absorb ordinary income, years with significant capital loss carryovers, or after retirement when income drops before Social Security and RMDs begin. The window between retirement at, say, 55 and RMD age at 73 is often the most productive conversion runway. California fully taxes Roth conversions, so the blended federal-plus-state rate matters: a conversion that looks attractive at a 24% federal rate becomes a 34-37% combined cost in California, which changes the break-even analysis substantially.

What is NUA and when does it help?

NUA, net unrealized appreciation, applies when you hold employer stock inside a 401(k) or other qualified plan. Instead of rolling that stock into an IRA (where all distributions would be taxed as ordinary income), you take the stock in-kind as a lump-sum distribution. You pay ordinary income tax only on the original cost basis at distribution. All the appreciation above that basis is taxed at long-term capital gains rates when you sell, regardless of how long you hold the stock after the distribution. NUA makes sense when the spread between the cost basis and the current value is large, and when your long-term capital gains rate is meaningfully lower than your ordinary income rate. It does not always win over the rollover: broker-assisted modeling of both paths is necessary. We typically run this analysis 12 to 24 months before the anticipated retirement or separation date so you have time to verify plan mechanics.

How do RMDs work after SECURE 2.0?

Required minimum distributions now begin at age 73 if you were born between 1951 and 1959, or at age 75 if you were born in 1960 or later. The annual RMD amount is calculated by dividing the prior year-end account balance by an IRS life-expectancy factor from the Uniform Lifetime Table. Roth IRAs are still exempt from RMDs during the owner's lifetime. Roth 401(k) balances are also now exempt from RMDs starting in 2024, a change that makes Roth 401(k) contributions more attractive for those who do not plan to convert. If you do not need the RMD income, the most tax-efficient tool is a qualified charitable distribution: you direct up to $105,000 in 2026 from your IRA to a qualifying charity, it counts toward your RMD, and it never appears in your adjusted gross income. That keeps Medicare IRMAA surcharges lower and reduces the portion of Social Security benefits that are taxable.

I inherited an IRA. What is the 10-year rule and what should I do?

If you inherited an IRA from someone who was not your spouse (and a few other narrow exceptions), and the original owner died in 2020 or later, you have until December 31 of the tenth year after the year of death to empty the account. There are no required annual distributions in years 1 through 9, but the full balance must be distributed by year 10. The planning question is not whether to take distributions but when. Spreading distributions across years with lower income reduces the marginal rate on each withdrawal. Your first step is confirming whether you qualify as an eligible designated beneficiary (surviving spouse, minor child, disabled or chronically ill individual, or someone within 10 years of the decedent's age), because EDBs still qualify for the lifetime stretch and have much more flexibility. We review the account, your income projections for the next 10 years, and your existing tax picture to build a distribution schedule that minimizes total tax paid.

Should I max out my HSA even if I can afford to pay medical expenses out of pocket?

Yes, for most Bay Area tech employees with a qualifying high-deductible health plan and sufficient liquid savings. The strategy is to max the HSA, invest the balance in equities rather than leaving it in cash, pay current medical expenses out of pocket, and save all receipts. You can reimburse yourself from the HSA at any point in the future, with no time limit. So a $3,000 dental bill you pay today can be reimbursed from the HSA in 20 years when the account has grown substantially, effectively converting appreciated, tax-free HSA dollars into cash. The deduction today, combined with tax-free growth and tax-free withdrawal for medical costs, makes the HSA the highest-priority tax-advantaged account after you have secured any employer 401(k) match. At retirement, the HSA becomes a secondary IRA for non-medical expenses (taxed as ordinary income after 65, no penalty) and a tax-free resource for Medicare premiums and healthcare costs.