Skip to content
STI
← Back to Blog

Sole Prop vs S-Corp at $110K and $150K Gig Income: Which Wins After $4,400 Overhead and QBI Loss (Sept 2026)

Picture two freelancers in September 2026. One nets $110,000 a year driving, delivering and doing contract design work. The other nets $150,000 as a consultant. Both have heard "you should be an S-corp" from a friend, a podcast or a Reddit thread. Both are wondering whether it's real money or just a fancy way to spend $4,400 a year.

The answer is different for each of them. This post runs both through the math, then looks at a few recent money stories that show why the same "should I?" question keeps coming up.

The rent-vs-buy lesson that applies to your entity

In I Edit Mortgage Advice for a Living — and Still Rent, NerdWallet's mortgage editor explains why she rents at 54. She compared the down payment, what that cash could earn invested, and the true price of owning. The popular rule of thumb says owning beats renting. Her math on her own situation said otherwise.

Entity choice works the same way. "S-corp saves on self-employment tax" is true. It's also incomplete, in the same way "renting is throwing money away" is incomplete. The savings are real, but so are the costs that come with them. Whether you come out ahead depends on your income, your salary, your bracket and your plans.

Mortgage rates add a wrinkle. NerdWallet's Mortgage Rates Today, Wednesday, September 23 reports that rates eased on a glimmer of economic optimism from Iran, but are still above 7%. If you plan to buy, your entity choice affects the income a lender sees. More on that below.

Worked example: sole prop vs S-corp at $110K

Every number here is an illustrative example, not a personal projection. I'm assuming a single filer, a 22% marginal bracket, no other income, and my own simplifications for QBI. I'm ignoring the QBI income-based limits, which can change results at higher taxable incomes.

Sole prop / single-member LLC at $110,000 net profit:

  • SE tax base: $110,000 × 92.35% = $101,585
  • SE tax at 15.3%: $15,542
  • Deductible half of SE tax: $7,771
  • QBI deduction (20% of $110,000 − $7,771): about $20,446

S-corp paying yourself a $65,000 salary:

  • Payroll tax (15.3% of $65,000): $9,945
  • SE-tax savings: $15,542 − $9,945 = $5,597
  • Employer half of payroll tax ($4,973) is a business deduction
  • Remaining K-1 profit after salary and employer tax: about $40,027
  • Less $4,400 overhead: about $35,627
  • QBI deduction (20% of that): about $7,125

Net result:

Line itemSole propS-corp ($65K salary)Difference
Self-employment / payroll tax$15,542$9,945+$5,597 for S-corp
Payroll, tax prep, state fees (assumed overhead)$0$4,400−$4,400
Income tax effect of deductionsbaselineslightly lower taxable income+$352
QBI deduction~$20,446~$7,125−$2,931 (13,321 × 22%)
Net≈ −$1,382

At $110K, this example says the S-corp loses about $1,382 a year. The $5,597 of SE-tax savings gets eaten by the $4,400 overhead and the QBI you give up when income shifts from business profit to salary.

Salary is the biggest swing factor. A lower salary saves more payroll tax but is harder to defend as "reasonable compensation." A higher salary shrinks the savings toward zero. The QBI part is the piece most calculators skip. I broke it down in Does S-Corp Actually Save Money at $85K–$150K Gig Income? The QBI Deduction Erosion Math, and the salary sensitivity is covered in How to Calculate S-Corp Savings at $110K Gig Income.

Worked example: the same comparison at $150K

Now the consultant at $150,000, using a $75,000 salary and a 24% bracket (again, an example).

Sole prop:

  • SE tax: $150,000 × 92.35% × 15.3% = $21,194
  • Half of SE tax deducted: $10,597
  • QBI deduction: 20% × $139,403 ≈ $27,881

S-corp at a $75,000 salary:

  • Payroll tax: 15.3% × $75,000 = $11,475
  • SE-tax savings: $9,719
  • Employer half of payroll tax: $5,738
  • K-1 profit after salary, employer tax and $4,400 overhead: about $64,862
  • QBI deduction: about $12,972
Line itemDifference (S-corp vs sole prop)
SE-tax savings+$9,719
Overhead−$4,400
Income tax from slightly higher taxable income−$110
QBI loss ($14,909 × 24%)−$3,578
Net≈ +$1,631

At $150K the S-corp comes out ahead by roughly $1,631 a year. That's real, but it's a modest win for the added complexity: payroll runs, a separate return, and reasonable-compensation risk.

This is the kind of head-to-head analysis Talivero runs for you, so you don't have to build the spreadsheet yourself.

Side-by-side summary

$110K, $65K salary$150K, $75K salary
SE-tax savings$5,597$9,719
Overhead−$4,400−$4,400
QBI and bracket effects−$2,579−$3,688
Net vs sole prop≈ −$1,382≈ +$1,631

But your numbers will differ based on your specific situation. A different salary, state, bracket, overhead figure or health insurance setup can move either result by thousands. Some people pay much less than $4,400 in overhead. Others pay more. Your own break-even could be well below or above what's shown here. The earlier posts on the S-corp vs sole prop break-even at $85K, $110K and $150K walk through how the crossover moves as income changes.

Why the S-corp isn't automatically better: three trade-offs

1. Lower Social Security credits. A smaller salary means less wage income counted toward your future Social Security benefit. Saving $5,597 today could cost you in retirement. That's a real trade-off, and it's not visible in a first-year comparison. See the Social Security trade-off most freelancers miss.

2. Retirement contributions are calculated differently. With a sole prop, a solo 401(k) or SEP-IRA contribution is based on net self-employment earnings. With an S-corp, it's based on your W-2 salary. A $65,000 salary can limit how much you can shelter compared with $110,000 of net profit, depending on the account. If maxing your retirement account is a priority, you need to run this piece separately.

3. A lender sees a different income. If you're a self-employed person thinking about buying, mortgage underwriters look at your tax returns. With the S-corp, your qualifying income might be your W-2 salary plus K-1 distributions, and lenders average it over time. With a sole prop, it's Schedule C net profit after deductions. With rates still above 7% according to NerdWallet, every dollar of documented income matters for qualifying. I covered this in The Hidden Cost of Buying a Home as a Gig Worker.

And the editor's lesson applies here too: buying isn't automatically better, and neither is a lower tax bill if the trade-offs cost more.

What small money stories teach about the "hidden cost" problem

Two other recent NerdWallet stories aren't about taxes, but they show why hidden costs matter.

In I Can't Stop Buying Surprise Bags, the appeal is that you don't know which product is inside until you open it. That's a lot like a business expense you didn't plan for. Small, frequent charges are easy to ignore until you add them up. For a freelancer, the surprise bag might be a $30 software subscription or a $15 tool you barely use. Those add up too, and they affect your net profit (the number your whole entity comparison is built on). Before comparing structures, audit what's flowing out of your business account.

In Chase Freedom Flex Ditches Foreign Transaction Fee, Cell Phone Insurance, a card is dropping a foreign transaction fee and cell phone insurance, and adding a heightened welcome bonus for a limited time. If you use that card for business, the change matters. A card that used to cover your work phone may no longer do so, and whether the phone is a deductible business expense depends on how much of your use is business. It's a small example of a benefit disappearing that you may have been quietly counting on.

And Data Centers Are a Potent, Bipartisan Battleground in the Midterms is a reminder that costs like utilities and local taxes are part of the political conversation this year. If you work from home, your home office costs are part of your business math too, and they can change.

None of these stories change the S-corp calculation directly. The point is the same one behind the rent-vs-buy piece: costs hide in places you don't look until you go looking.

Quarterly taxes: the piece that changes either way

Whichever structure you pick, you still need to plan payments. A sole prop pays estimated taxes on both income tax and SE tax. An S-corp owner pays payroll taxes through the payroll system, but K-1 profit still creates estimated income tax. The next payment deadline is the September 15 one for the third quarter, so if you're reading this after that date, the next one is January. In our $110K sole prop example, the total federal picture includes the $15,542 SE tax plus income tax, so setting aside a percentage from every payment you receive is safer than guessing. The step-by-step formula is in How to Calculate Your 2026 Quarterly Estimated Taxes as a Gig Worker.

A quick decision checklist

Before you decide, work through these:

  1. What's your real net profit? Not revenue, and not what you hope to earn next year.
  2. What salary could you defend as reasonable? Compare with what a similar employee would earn.
  3. What will overhead actually cost you? Get real quotes for payroll and tax prep instead of using my $4,400.
  4. What's your QBI situation? This is the step most people skip.
  5. How do you plan to fund retirement? Test your account choice under both structures.
  6. Are you buying a home in the next two years? Ask how a lender would view each structure.
  7. What's your state's treatment of S-corps? Some add taxes or fees.

For a full framework, the 5-question decision framework is a good starting point.

What this means for you

At $110K in this example, the S-corp lost about $1,382. At $150K, it gained about $1,631. Neither answer is universal. A different salary, a lower overhead, a higher bracket or a large retirement contribution could flip either one. The math should speak for itself, and it needs your inputs to say anything useful.

If you want to run this for your own situation, Talivero lets you enter your net profit, salary, state, overhead and retirement goals, then compare sole prop, LLC and S-corp side by side. It's worth a look before your next quarterly payment or before you file an election, especially while rates are still above 7% and you're weighing bigger financial decisions.

Sources

Ready to optimize your tax structure?

Optimize Your Tax Structure Free