Solo 401k and SEP-IRA for Landlords: Retirement Strategies

Here is a sobering number: according to the National Institute on Retirement Security, more than 56% of self-employed Americans — including independent landlords — have no dedicated retirement savings plan beyond the equity sitting inside their properties. That same equity, however, is illiquid, subject to market cycles, and cannot be easily drawn down in $2,000 monthly increments when you are 72 years old and tired of fixing water heaters. Rental real estate is an extraordinary wealth-building vehicle, but it is not a retirement plan by itself. And the IRS, for once, is actually on your side — offering two of the most powerful tax-advantaged savings accounts available anywhere in the American financial system specifically designed for self-employed individuals and small business owners: the Solo 401k and the SEP-IRA.

If you are a landlord managing your own properties — collecting rent, handling maintenance, screening tenants — you almost certainly qualify as a self-employed person generating Schedule E or Schedule C income that can anchor one or both of these accounts. Yet most independent landlords either do not know these accounts exist for them, assume they are only for freelancers and consultants, or are vaguely aware but have never acted. This article exists to change that. We will walk through how each account works, how contribution limits compare, which one fits your situation, and how to integrate these strategies with the rest of your rental business operations.

Why Landlords Are Uniquely Positioned — and Uniquely Exposed

The average independent landlord in the United States owns between two and five units and generates somewhere between $18,000 and $75,000 in annual net rental income, according to data from the American Community Survey and IRS Statistics of Income reports. That income comes with an unusual tax profile: rental income from long-term residential leases reported on Schedule E is generally not subject to self-employment (SE) tax, which sounds like a win. And in the short term, it is. But that same exemption means your rental income does not count as 'earned income' for the purposes of funding an IRA contribution under the traditional definition.

This is where many landlords hit a wall. They assume that because they own property and generate income, they can simply open a SEP-IRA or Solo 401k and start sheltering that rental income. The reality is more nuanced — and the path forward depends heavily on how you structure your real estate activities. Let us break down the two most powerful retirement tools available to self-employed real estate investors and walk through exactly how landlords can access them.

Understanding the Earned Income Requirement for Landlords

The first step in unlocking retirement account contributions is identifying your qualifying earned income. Here are the most common ways landlords generate it:

• Self-employment income from property management services — if you manage properties for other owners and charge a fee, that fee income is Schedule C earned income and fully qualifies.
• Real estate professional status — if you spend more than 750 hours per year materially participating in real estate activities and real estate constitutes more than half your working time, the IRS may treat your rental activities as a trade or business, potentially converting passive losses to active income.
• Short-term rental income (STR) — Airbnb-style rentals where average guest stay is 7 days or fewer and you provide significant services are often treated as Schedule C self-employment income, not passive Schedule E income.
• W-2 wages from a property management company you own — if you have formed an S-Corp or C-Corp to manage your properties and pay yourself a salary, that W-2 income qualifies.
• Other self-employment side income — consulting, writing, coaching, or any freelance work creates earned income that can anchor your retirement contributions even if your primary rental income is passive.

If you can identify even one source of qualifying earned income, you have a foundation. The contribution limits on Solo 401k and SEP-IRA accounts are tied to that earned income amount, so the more qualifying income you generate, the more you can shelter.

SEP-IRA: The Simple, Powerful Starting Point

The Simplified Employee Pension IRA — or SEP-IRA — is exactly what the name suggests: simple. It was designed for sole proprietors and small business owners who want a high-contribution retirement account without the administrative complexity of a 401k plan. As of 2025, you can contribute up to 25% of net self-employment income, capped at $70,000 annually. That cap was $66,000 in 2023 and has been indexed to inflation, so it will likely continue rising.

How SEP-IRA Contribution Limits Work in Practice

The math on a SEP-IRA is straightforward but slightly counterintuitive. You contribute 25% of net self-employment income — but 'net' means after the deduction for half of self-employment tax. So if you generate $80,000 in Schedule C net profit, your effective contribution rate works out to approximately 18.59% of gross self-employment profit, or roughly $14,870. Here is what that looks like across different income levels:

• $40,000 net SE income → approximately $7,430 SEP-IRA contribution
• $80,000 net SE income → approximately $14,870 SEP-IRA contribution
• $150,000 net SE income → approximately $27,890 SEP-IRA contribution
• $280,000+ net SE income → maximum $70,000 contribution (2025 limit)

SEP-IRA Advantages for Landlords

• Extremely easy to open — most major brokerages (Fidelity, Vanguard, Schwab, TD Ameritrade) offer free SEP-IRA accounts with no annual fees.
• You can open and fund a SEP-IRA for the prior tax year up until your tax filing deadline including extensions — meaning you can open a SEP-IRA in October of the following year and still get the deduction for last year.
• No annual IRS filing requirements — unlike a Solo 401k, a SEP-IRA does not require filing Form 5500 (unless plan assets exceed $250,000, at which point only a simple form is needed).
• Contributions are 100% deductible as an above-the-line deduction on Schedule 1, reducing your AGI and potentially qualifying you for additional deductions or credits.
• Investment options are identical to a traditional IRA — stocks, bonds, mutual funds, ETFs, REITs, and more.

SEP-IRA Limitations to Know

• No Roth option — all SEP-IRA contributions are pre-tax; there is no Roth SEP-IRA (though SECURE 2.0 authorized them beginning in 2023, most custodians have been slow to implement this).
• No catch-up contributions — unlike a traditional IRA, there is no extra catch-up amount for those 50 and older inside the SEP structure itself (the $70,000 cap is the cap).
• If you have employees, you must contribute the same percentage of salary for all eligible employees as you contribute for yourself — this makes SEP-IRAs less attractive for landlords who have hired W-2 property management staff.
• Contribution limits are purely percentage-based — you cannot make a fixed dollar contribution independent of income, which limits flexibility in low-income years.

Solo 401k: Maximum Power for the Self-Employed Landlord

If the SEP-IRA is a powerful tool, the Solo 401k — also called an Individual 401k or Self-Employed 401k — is a Swiss Army knife. It combines the employee contribution portion of a traditional workplace 401k with the employer profit-sharing contribution, and it does so for people with no full-time employees other than a spouse. For 2025, the total contribution limit is the same $70,000 cap, but the mechanics allow you to reach that cap at significantly lower income levels than a SEP-IRA.

The Two Buckets: Employee Deferral + Employer Profit Sharing

This is the core insight that makes the Solo 401k so powerful. You are wearing two hats simultaneously — both the employee and the employer — and both hats get contribution limits.

1. 1Employee Elective Deferral: You can contribute up to $23,500 in 2025 ($31,000 if you are age 50 or older, thanks to catch-up contributions). This is a flat dollar amount, not percentage-based, and it applies regardless of whether your net income is $30,000 or $300,000 — as long as your net earned income is at least equal to what you contribute.
2. 2Employer Profit-Sharing Contribution: In addition to the employee deferral, you can contribute up to 25% of net self-employment income (same calculation as the SEP-IRA) as the employer side. This is in addition to the employee deferral.
3. 3Combined Limit: The sum of both contributions cannot exceed $70,000 ($77,500 with catch-up) for 2025.
4. 4Roth Option: Many Solo 401k custodians allow you to designate some or all of your employee deferral as Roth (after-tax) contributions — a feature the SEP-IRA typically cannot match.

Why Solo 401k Reaches Maximum Contributions Faster

Consider two landlords each with $60,000 in qualifying net self-employment income. Using a SEP-IRA, the maximum contribution is approximately $11,170. Using a Solo 401k, the same landlord can contribute $23,500 (employee deferral) plus approximately $11,170 (employer profit-sharing) for a total of $34,670 — more than three times the SEP-IRA amount. To reach the $70,000 maximum with a SEP-IRA alone, you need roughly $280,000 in net self-employment income. With a Solo 401k, you can reach $70,000 with approximately $185,000 in net SE income.

Solo 401k Administrative Requirements

• Must be established by December 31 of the tax year you want to use it — unlike the SEP-IRA, you cannot open a Solo 401k retroactively after year-end (though you can still fund it up to your tax deadline).
• Requires an EIN (Employer Identification Number) — you must apply for one from the IRS if you have not already, which takes minutes online.
• Form 5500-EZ is required when plan assets exceed $250,000 — this is a straightforward annual filing but does add a layer of administration.
• No full-time employees allowed — if you hire even one non-spouse W-2 employee working more than 1,000 hours per year, you must either include them in the plan (converting it to a full 401k) or terminate the Solo 401k.
• Loan provisions are available — unlike a SEP-IRA, a Solo 401k can allow loans up to 50% of the vested balance or $50,000, whichever is less. This can be a useful liquidity tool in a pinch, though it should be used cautiously.

Side-by-Side Comparison: SEP-IRA vs. Solo 401k

• Contribution Limit (2025): Both cap at $70,000, but Solo 401k reaches that cap at lower income levels.
• Catch-Up Contributions (50+): SEP-IRA — none additional; Solo 401k — $7,500 extra ($31,000 employee deferral).
• Roth Option: SEP-IRA — very limited / emerging; Solo 401k — yes, on employee deferral portion.
• Establishment Deadline: SEP-IRA — by tax filing deadline including extensions; Solo 401k — must be established by December 31 of plan year.
• Employees Allowed: SEP-IRA — yes (but costly); Solo 401k — no (spouse only).
• Loans: SEP-IRA — no; Solo 401k — yes.
• IRS Filing Required: SEP-IRA — minimal; Solo 401k — Form 5500-EZ when assets exceed $250,000.
• Complexity: SEP-IRA — very low; Solo 401k — moderate.
• Best For: SEP-IRA — landlords who want simplicity or may hire staff; Solo 401k — landlords maximizing contributions at moderate income levels or wanting Roth flexibility.

Tax Impact: What These Accounts Actually Save You

The tax advantage of these accounts is not abstract. Every dollar you contribute to a pre-tax Solo 401k or SEP-IRA reduces your Adjusted Gross Income by that same dollar. For landlords operating in the 22% to 32% federal tax bracket — which covers taxable income from roughly $47,150 to $197,950 for single filers in 2025 — the math is compelling.

1. 1Direct tax savings: A $23,500 Solo 401k employee deferral at a 24% marginal rate saves $5,640 in federal income taxes this year.
2. 2State tax savings: Most states with income taxes allow the same deduction, adding another $500 to $2,000+ depending on your state.
3. 3QBI deduction interaction: Reducing your AGI via retirement contributions can preserve or expand your Section 199A Qualified Business Income deduction, which allows a 20% deduction on qualified business income — a second-order benefit that multiplies the value of your contribution.
4. 4IRMAA and ACA premium credits: For landlords approaching Medicare age or using ACA marketplace coverage, reducing AGI can lower Medicare surcharges or increase premium tax credits — potentially worth thousands more.
5. 5Tax-deferred compounding: Money inside these accounts grows without annual dividend or capital gains taxation, accelerating compounding over decades.

Which Account Is Right for Your Landlord Situation?

Choose a SEP-IRA if:

• You want the absolute simplest setup with no year-end deadline pressure.
• You have or plan to hire W-2 employees in your real estate business.
• You already have other retirement accounts and are contributing the maximum elsewhere.
• You are already over 50 and your net SE income is high enough that the 25% limit gets you close to $70,000 anyway.
• You are a first-time retirement account opener and want to start immediately without paperwork complexity.

Choose a Solo 401k if:

• You want to maximize contributions at lower income levels — especially if your net SE income is between $30,000 and $200,000.
• You are 50 or older and want to use catch-up contributions to accelerate your savings.
• You want a Roth contribution option inside your self-employed plan.
• You have no full-time non-spouse employees and do not plan to hire any.
• You want access to the loan provision as a potential liquidity backstop.
• You operate a short-term rental or property management business generating Schedule C income.

Integrating Retirement Strategy With Your Rental Business Operations

One of the most overlooked aspects of retirement planning for landlords is the integration between their day-to-day rental business operations and their year-end tax and contribution strategy. Your retirement contribution capacity is directly tied to your net self-employment income — which means every dollar of legitimate business deduction you take reduces both your tax bill and your contribution ceiling. This tension requires thoughtful year-end planning, not reflexive expense deduction.

For example, if you are close to the income threshold where an additional $10,000 in deductions would drop you from a $35,000 Solo 401k contribution to a $23,500 employee-only contribution, you may want to delay some discretionary deductions into the following year, or accelerate income recognition where possible. This is exactly the kind of optimization that should happen in a Q4 planning conversation with your CPA — not on April 14th.

This is also where having clean, well-organized financial records becomes critical. The IRS requires that you can substantiate your net self-employment income, your deductions, and your contribution basis. Landlords who are managing income and expenses manually or across multiple spreadsheets frequently undercount income in ways that inadvertently suppress their contribution limits — or worse, overclaim deductions that trigger audits.

Backdoor Roth IRA: A Complementary Strategy

For landlords whose income exceeds the Roth IRA direct contribution limits — $161,000 for single filers and $240,000 for married filing jointly in 2025 — the backdoor Roth IRA remains a powerful supplement. The strategy involves making a non-deductible contribution to a traditional IRA ($7,000 in 2025, or $8,000 if 50+) and then converting it to a Roth IRA, effectively allowing high-income landlords to build tax-free retirement savings. Note that the 'pro-rata rule' complicates this strategy if you have pre-tax IRA balances — another reason to consult with a CPA who understands your full financial picture.

Defined Benefit Plans: For High-Income Landlords Catching Up

If you are a landlord in your 50s or 60s with high self-employment income who has not saved enough for retirement, there is a third option worth knowing about: the defined benefit plan (sometimes called a cash-balance plan). These plans allow contributions far exceeding the $70,000 limits of Solo 401k and SEP-IRA — sometimes $200,000 or more per year — based on actuarial calculations tied to your age and income. They are significantly more complex and expensive to administer, but for the right landlord in catch-up mode with $200,000+ in annual net SE income, they can be transformative. A qualified actuary and CPA are required to set one up properly.

Common Mistakes Landlords Make With Retirement Accounts

1. 1Assuming all rental income qualifies as earned income — it does not. Passive Schedule E income requires a workaround (STR structure, real estate professional status, management fee income) before it can anchor contributions.
2. 2Missing the Solo 401k establishment deadline — unlike the SEP-IRA, you cannot open a Solo 401k after December 31 and have it apply to the prior year. Many landlords discover this in February and miss an entire year.
3. 3Over-contributing — it is possible to accidentally exceed contribution limits if you have multiple retirement accounts (a former employer's 401k, a spouse's plan, etc.). Over-contributions trigger a 6% excise tax annually until corrected.
4. 4Neglecting to update the plan document — Solo 401k plans must use updated IRS-approved plan documents. Providers like Fidelity, Vanguard, and Schwab handle this automatically, but self-directed custodians sometimes do not.
5. 5Ignoring the interaction with the QBI deduction — as mentioned earlier, retirement contributions affect your AGI, which affects your QBI deduction calculation. Model both simultaneously.
6. 6Waiting until April to decide — the best retirement planning is done in Q4, when you still have time to maximize contributions and structure your year-end financials strategically.

Automating Your Rental Business to Free Up Time for Financial Planning

One of the most pragmatic things an independent landlord can do to improve their retirement outcomes is not actually about retirement accounts at all — it is about reclaiming time. The average self-managing landlord spends 5 to 8 hours per month per unit on rent collection follow-ups, maintenance coordination, lease renewals, and financial reconciliation. Multiply that by 10 units and you are looking at 50 to 80 hours per month of operational overhead that crowds out strategic financial thinking.

VerticalRent's automated ACH rent collection eliminates the manual chase for checks and late payments, processing rent automatically on your chosen date and notifying you of any failures in real time. When rent flows consistently and predictably, your cash flow projections become more reliable — and reliable cash flow projections are the foundation of smart annual retirement contribution planning. You cannot optimize contributions to a Solo 401k if you do not know whether November rent is going to come in.

Similarly, our AI expense categorizer tags and organizes every income and expense transaction across your portfolio automatically, giving you a clean, accountant-ready view of your net self-employment income at any point in the year. No more shoebox receipts. No more scrambling to reconstruct records in March. Just clean data that empowers you and your CPA to make confident decisions about contributions, deductions, and tax strategy.

Action Steps: Getting Started This Quarter

1. 1Identify your qualifying earned income sources — review your tax returns and current-year financials to determine how much qualifying self-employment or Schedule C income you have generated this year.
2. 2Consult a CPA with real estate experience — the intersection of real estate taxation, self-employment income, and retirement account rules is nuanced. A single hour with a knowledgeable CPA will be the highest-ROI financial action you take this year.
3. 3Decide between SEP-IRA and Solo 401k — use the comparison framework above, factoring in your income level, employee status, and whether you want Roth capability.
4. 4Open your account before December 31 — Solo 401k plans must be established by year-end. SEP-IRAs can be opened later but benefit from early action.
5. 5Set up automated contributions — treat your retirement contribution like a fixed operating expense. Fund it on a quarterly basis as rental income flows in.
6. 6Integrate your rental business financials — use VerticalRent's expense categorizer and automated rent collection to maintain clean, real-time financial records that support accurate contribution calculations year-round.
7. 7Revisit annually — contribution limits change, your income changes, and your retirement strategy should evolve with both. Make this an annual Q4 conversation with your CPA.

The Bottom Line

Independent landlords occupy a strange financial position: they are often quite wealthy on paper — equity-rich in appreciating real estate — while simultaneously under-prepared for the cash-flow realities of retirement. A Solo 401k or SEP-IRA does not replace real estate investing; it complements it, building a pool of liquid, tax-advantaged wealth that can be drawn on without selling a property in a down market or at an inopportune time. Given that contribution limits now reach $70,000 annually — and $77,500 for those 50 and over — there has never been a more powerful moment to take this seriously.

The landlords who build genuine financial security are not necessarily the ones with the most units. They are the ones who treat their rental business like a real business — with clean books, automated operations, strategic tax planning, and a deliberate retirement savings strategy running in parallel. You already own the real estate. Now build the retirement account to match it.