Self-Employed Retirement Income Planning: Solo 401(k), SEP-IRA & SIMPLE IRA Drawdown Strategy (2026)

If you've spent your career as a consultant, sole proprietor, S-corp owner, or independent contractor, your retirement accounts don't look like your neighbor's 401(k). You funded them yourself, structured them yourself, and now you need to draw them down yourself — with no HR department to explain the options. The Solo 401(k), SEP-IRA, and SIMPLE IRA each have distinct distribution rules, and the transition from self-employment introduces planning levers unavailable to W-2 retirees: control over your own income timing, flexibility in how you wind down the business, and the ability to size Roth conversions precisely. This guide covers what's different and how to use it to your advantage.

The three self-employed retirement accounts: how they behave at drawdown

Most self-employed retirees hold one or more of these account types. Their tax treatment at distribution is identical — all traditional balances come out as ordinary income — but the structural rules differ in ways that matter before you start drawing.

The practical consequence: at retirement, a SEP-IRA and SIMPLE IRA (after the 2-year seasoning period) are functionally identical to a traditional IRA. You draw from them, owe ordinary income tax, and follow IRA RMD rules. The Solo 401(k) has a separate plan document with its own distribution rules — which creates both a potential advantage (Roth option, possible Rule of 55) and extra logistics (you may need to terminate the plan before or shortly after you stop the business).

Solo 401(k): rolling to an IRA vs. keeping the plan open

Unlike a 401(k) at an employer you've left, a Solo 401(k) is your plan — you're both the employer and the participant. This means you can keep it open as long as you're self-employed. But once you fully close the business, the IRS expects you to terminate the plan within a reasonable time and distribute or roll over the assets.

Reasons to roll your Solo 401(k) to a traditional IRA:

• Simplified account management — especially if you also have a SEP-IRA or other IRAs
• IRA custodians typically offer a broader fund menu than the self-directed Solo 401(k) providers
• Consolidated RMD calculation across all IRAs (vs. separate RMD from the 401(k))
• Roth conversions from a traditional IRA are straightforward — no plan document constraints

Reasons to keep the Solo 401(k) temporarily:

• The Rule of 55 (see below) — if you're age 55–59 and need penalty-free distributions before 59½, keeping assets in the plan is essential
• Stronger creditor protection: ERISA-covered plans have federal statutory protection from bankruptcy creditors; IRA creditor protection is state-dependent and varies widely
• If your plan holds a stable value fund or other investment not available in IRAs

The SIMPLE IRA 2-year rule: SIMPLE IRA funds cannot be transferred to a traditional IRA (or any other account type) within the first two years of plan participation without triggering the 25% early withdrawal penalty — not the usual 10%. After two years, the SIMPLE IRA can be rolled over to a traditional IRA on the same terms as any other IRA. If you're approaching retirement and your SIMPLE IRA is less than two years old, factor this restriction into your sequencing decisions.

Rule of 55 for self-employed — the nuance that matters

The Rule of 55 (IRC § 72(t)(2)(A)(v)) allows penalty-free withdrawals from a qualified employer plan — including a Solo 401(k) — if you separate from service with the employer in or after the calendar year you turn 55.⁴ For W-2 employees, this is straightforward: you leave the job at 55 or later, and the 401(k) is penalty-free.

For self-employed individuals, "separating from service" requires permanently ceasing the self-employment activity that generated the business. The ambiguity:

• S-corp owners: If you are an officer and W-2 employee of your own S-corporation and you stop working for the corporation in or after the year you turn 55, the Rule of 55 should apply to the S-corp's Solo 401(k) — you have a clear employer-employee relationship and a definable separation date. Document the cessation of employment formally.
• Sole proprietors: The IRS has not issued definitive guidance for sole proprietors. If you stop all consulting or business activity entirely at 55 or later, a reasonable interpretation supports the Rule of 55. But if you take occasional projects — even small ones — the "separation" becomes murky. One client engagement after claiming separation could jeopardize the exception.
• Gradual wind-downs: A 3-year transition from full-time practice to part-time consulting is common among self-employed retirees. During that transition, the Rule of 55 likely does not apply because you haven't separated — you're still self-employed at reduced capacity.

S-corp owners: adjusting salary in the retirement transition

S-corp owners who pay themselves a W-2 salary have a planning lever that sole proprietors don't: the ability to reduce the W-2 salary before formally closing the business. This matters for two reasons.

Solo 401(k) employer contribution is W-2-based: For an S-corp owner, the employer profit-sharing contribution to the Solo 401(k) is limited to 25% of W-2 wages. If your W-2 is $200,000, the employer contribution can be up to $50,000. Drop the W-2 to $60,000 in a transition year, and the employer contribution ceiling falls to $15,000. This reduced the total Solo 401(k) contribution capacity, but it also reduces payroll taxes — which may be an acceptable trade-off in a wind-down year.

Social Security earnings record impact: Each W-2 dollar under $176,100 (2026 FICA wage base) generates future SS credits and increases your SS benefit at claiming age. If you're under 60 and your SS record isn't yet at its peak, an aggressive salary reduction in the final years before closing the S-corp can permanently reduce your SS benefit. If you're over 62 and your SS record is already solid, reducing the salary is less costly. Model your SS impact at SSA.gov before making the cut.

QBI deduction in S-corp wind-down years: Unlike a sole proprietor, an S-corp owner's W-2 salary is not qualified business income (QBI). The S-corp's pass-through income (dividends/distributions above the W-2) is QBI and eligible for the § 199A 20% deduction — permanently extended by OBBBA.⁵ In transition years where the corporation is still operating but at reduced capacity, the QBI deduction can still shelter a portion of S-corp pass-through income. A retirement income specialist familiar with business owner planning can model the W-2 vs. distribution split to maximize the QBI benefit before the business closes.

QBI deduction: a disappearing tax benefit to plan around

For a sole proprietor with $200,000 of net self-employment income, the § 199A QBI deduction reduces taxable income by up to $40,000 (20% of $200,000, subject to phase-out rules at higher income levels). In retirement — once business income goes to zero — that deduction disappears entirely.⁵

The implication for tax planning in the final working years:

• Front-load income into business-income years. If you have any ability to time when clients pay or when the business recognizes income, concentrating income into years with active QBI deduction eligibility is more tax-efficient than spreading it into retirement years where the same income lacks the deduction.
• Compare conversion tax rates pre- vs. post-retirement carefully. A self-employed consultant in the 24% bracket with a $40,000 QBI deduction has an effective marginal rate on extra dollars below what the bracket rate suggests. Once retired, the 22% or 24% bracket applies fully without the QBI reduction. Roth conversions are often better done post-retirement when ordinary income is low — but the QBI interaction is worth modeling explicitly.

Business sale or wind-down: integrating a lump-sum capital event

Many self-employed retirees don't just walk away — they sell the business, receive a buyout from a partner, or negotiate an earn-out. That creates a one-time capital event that must be integrated into the retirement income plan.

Asset sale vs. stock sale: If you sell the assets of a sole proprietorship or S-corporation, different asset categories are taxed differently. Goodwill generates long-term capital gain (taxed at preferential 0/15/20% rates). Depreciation recapture on equipment or real estate generates ordinary income (§ 1245/§ 1250). Accounts receivable collected at sale are ordinary income. The tax blends across categories; a CPA or retirement income specialist should model the after-tax proceeds before the deal is structured.

Installment sale: If the buyer can't pay cash upfront (common in small business acquisitions), an installment sale under IRC § 453 spreads the gain recognition over multiple years.⁶ This can be an effective way to avoid a single-year income spike that triggers the top LTCG bracket (20% above $613,700 MFJ in 2026) or pushes MAGI into higher IRMAA tiers. The tradeoff: you carry the risk of the buyer defaulting. Installment payments act as a retirement income stream during the payout period, reducing how much you need to draw from your Solo 401(k) or IRA in those years.

NIIT exposure: Net investment income — including capital gains on a business sale — is subject to the 3.8% Net Investment Income Tax for single filers with MAGI above $200,000 and MFJ filers above $250,000. For larger business sales, structuring to stay under these thresholds — or using installment sales or charitable remainder trusts — can eliminate a meaningful tax.

The year of the sale is the worst year to trigger a large Roth conversion. If the business sale pushes MAGI into the 24% or 32% bracket, the marginal cost of a Roth conversion that year is very high. Pause or reduce planned conversions in the year of the sale; resume them in subsequent years when income normalizes.

RMDs from self-employed retirement accounts: the still-working exception does not apply

W-2 employees who remain with the same employer past the RMD starting age can delay RMDs from that employer's plan until actual retirement — the "still-working exception." Self-employed individuals do not benefit from this exception.⁷ If you own more than 5% of the business (which is almost always true for self-employed), RMDs begin at the applicable age regardless of whether you're still running the business.

Roth Solo 401(k): no lifetime RMDs. Under SECURE 2.0 § 325, Roth accounts in employer-sponsored plans — including Roth Solo 401(k) plans — are no longer subject to lifetime RMDs effective January 1, 2024.⁸ If your Solo 401(k) plan document was established with or now permits a Roth option, any balance in the Roth sub-account can grow and be drawn on your own schedule — no forced distributions at 73 or 75. This brings the Roth Solo 401(k) in line with the Roth IRA and is a compelling reason to shift ongoing contributions to the Roth bucket in the accumulation years leading up to retirement, if your income bracket allows.

Aggregating IRAs for RMD calculation: If you rolled earlier SEP-IRA balances to a traditional IRA, those balances are aggregated with all other traditional IRAs for RMD purposes. The Solo 401(k), if kept as a separate plan, computes its own RMD independently. Rolling the Solo 401(k) to an IRA before RMD age simplifies this to a single calculation. See the RMD Calculator to project required distributions by balance and age.

Roth conversion window: a structural advantage for self-employed retirees

The ideal Roth conversion window is a period of low ordinary income — enough to fill the 12% and 22% brackets with conversions before RMDs and Social Security start pushing income higher. Self-employed retirees often have this window in its purest form:

• Business income stops abruptly at retirement (not tapered by severance, pension, or deferred comp)
• No W-2 income, no employer retirement plan contributions generating income offsets
• Social Security may not yet be claimed (rational to delay to 70 for maximum survivor benefit)
• No workplace pension forcing a floor of ordinary income

The result: in the gap years between closing the business and starting Social Security, a self-employed retiree may have zero or near-zero ordinary income from ongoing sources. Every dollar of Roth conversion fills the bracket from the bottom, minimizing the effective conversion rate.

2026 bracket math for a married couple (MFJ): The 12% bracket covers taxable income from $23,850 to $96,950. With the $32,200 standard deduction (2026), a couple with no other ordinary income can convert up to $129,150 from a traditional Solo 401(k) or IRA and stay entirely in the 12% bracket.⁹ Tax on that conversion: roughly $9,600 (blended ~7.4% effective rate). Each $10,000 converted at that rate reduces future RMDs by the conversion amount plus all future growth on it.

If the 65+ OBBBA senior deduction applies ($6,000 per person, up to $12,000 MFJ, phasing out above $150,000 MAGI), the conversion ceiling expands by that amount — to $141,150 gross income before hitting the 22% bracket, for a couple both aged 65–72 with no other income.¹⁰

Social Security provisional income watch: Once SS benefits start, each additional dollar of Roth conversion can trigger up to $0.85 in additional taxable SS income — an effective marginal rate multiplier. For a couple with $44,000 of SS, staying under the $44,000 MFJ provisional income threshold (above which 85% of SS is taxable) requires keeping Roth conversions modest. The years before SS starts are more valuable for conversion precisely because provisional income is not a constraint.

Use the Roth Conversion Window Calculator to size annual conversions given your balance, filing status, and Social Security timing.

Worked example: David, age 62, management consultant

David is a sole proprietor management consultant winding down a 25-year practice. He has never had an employer and has self-funded his retirement entirely.

• Traditional Solo 401(k): $920,000 (accumulated through consistent employee + profit-sharing contributions)
• SEP-IRA (from first 8 years before he switched to Solo 401(k)): $145,000
• After-tax brokerage: $185,000 (cost basis $140,000)
• Spouse Maria, age 60: former W-2 healthcare worker; own Roth IRA $78,000; Social Security estimated at FRA 67: $18,000/yr ($22,320 if delayed to 70)
• David's SS at FRA 67: $40,800/yr; at age 70: $50,592/yr
• Annual spending target: $88,000
• Business wind-down plan: Part-time consulting at $80,000 gross through age 64, then full stop

Ages 62–64: transition years

David continues solo consulting at $80,000/yr gross. Net SE income after expenses: approximately $56,000. After SE tax deduction (~$3,960), net compensation for Solo 401(k) purposes: $52,040. Employer contribution (20% of net SE income): $10,408. Plus employee deferral (super catch-up at age 62): $35,750. Total Solo 401(k) contribution: $46,158 — the final two years of high contributions before the business closes.

Spending: Maria's income covers household basics; joint spending gap of $88,000 is covered by consulting income ($56,000 after taxes) plus brokerage account draws. No retirement account distributions needed in these years. Federal tax is modest — consulting net income offset by SE tax deduction, QBI deduction (20% of $56,000 ≈ $11,200), and standard deduction.

Ages 64–67: Roth conversion window

Business is closed. David has no ordinary income. Maria has no current earnings. Social Security not yet claimed. This is the conversion window.

Income sources for spending: brokerage account draws ($185,000 available; LTCG on appreciated shares taxed at 0% in the 12% bracket at this income level). Roth conversions from the traditional Solo 401(k).

Conversion strategy: David and Maria target $129,150 in gross Roth conversions per year (the 12% bracket ceiling for MFJ in 2026 with standard deduction). Tax: approximately $9,600/year, an 7.4% effective rate on the conversion. Over 3 years: $387,450 shifted to Roth at a total tax cost of ~$28,800.

By age 67, the Solo 401(k) traditional balance has been reduced from $920,000 to approximately $590,000 (net of conversions and 5% investment growth). The SEP-IRA has grown to roughly $175,000. Total Roth accounts: David's converted Solo 401(k) Roth balance ($388,000) + Maria's Roth IRA ($90,000 with growth) = $478,000.

Age 67: Social Security starts for both

David files at FRA 67 ($40,800/yr) and Maria files at FRA 67 ($18,000/yr). Combined SS: $58,800/yr. Roth conversion capacity is now compressed: SS provisional income of $29,400 (half of combined SS) plus any IRA distributions or conversions above $14,600 crosses the $44,000 MFJ threshold, triggering 85% SS inclusion. Conversions effectively pause or shrink significantly.

Age 75+: RMD phase

David was born in 1964, so RMDs begin at age 75. At the reduced traditional balance (~$500,000 Solo 401(k) + $235,000 SEP-IRA = $735,000 combined), the first-year RMD is approximately $29,878 ($735,000 ÷ 24.6 ULT divisor).¹¹

Total income at 75: $40,800 (David SS) + $18,000 (Maria SS) + $29,878 (RMD) = $88,678. Provisional income: $29,439 (half SS) + $29,878 (RMD) = $59,317 → above the $44,000 MFJ threshold → 85% of SS taxable = $49,980. Taxable income: $29,878 + $49,980 = $79,858, minus $32,200 standard deduction = $47,658. Federal tax ≈ $2,385 (10%) + $2,857 (12% on $23,808) = $5,242. Effective rate on $88,678 gross income: 5.9%. MAGI = $88,678 — comfortably under $218,000 MFJ IRMAA Tier 1.

QCDs from the traditional IRA can eliminate a portion of the RMD income at 70½ or later — up to $111,000/year per taxpayer in 2026, directly from the traditional IRA to charity, excluded from income entirely.¹² If David or Maria have any charitable intent, QCDs reduce RMD income while fulfilling the required distribution — see the QCD Planning Guide.

Where a retirement income specialist makes a difference

The self-employed retirement income decisions that cost the most without expert guidance:

• Miscalculating the Rule of 55: A 57-year-old sole proprietor who continues occasional projects after "retiring" may inadvertently void the Rule of 55 for her Solo 401(k). Each pre-59½ distribution could then trigger a 10% excise tax retroactively — or create an IRS challenge. The penalty on $50,000/year over two years is $10,000 in avoidable tax.
• Rolling the Solo 401(k) to an IRA too early: Converting before 59½ eliminates the Rule of 55 option. If you're 56 and think you might need income before 59½, keep the plan until you're certain you don't.
• Missing the QBI phase-out calculus in wind-down years: The § 199A deduction phases out for service businesses (consultants, lawyers, accountants, financial advisors) above $197,300 (single) / $394,600 (MFJ) of taxable income in 2026. A business that was over these thresholds loses the deduction entirely — so the wind-down year where income drops below threshold may be the first year QBI actually applies and should be front-loaded.
• Ignoring the business sale year in the conversion schedule: A large capital gain from a business sale can temporarily close the Roth conversion window for 1-2 years. Advisors who don't understand both business exit and retirement income planning treat these as separate events — but they're financially linked.
• Forgetting to formally terminate the Solo 401(k): A Solo 401(k) that remains open for years after the business closes — without distributions or a formal termination — can generate administrative and tax complexity. The IRS expects timely plan termination when the sponsoring business ceases.