Should Your Houston Business Be an S-Corp? The Income Threshold Where It Actually Saves Money

If you run a profitable Houston business as a sole proprietor or a single-member LLC, someone has told you to become an S-corp. Maybe a friend at a barbecue, maybe a post online, maybe a preparer who mentioned it in passing. The advice is not wrong. It is just incomplete. The S-corp election saves real money, but only above a real income threshold, and only if you actually follow the rule that makes it work. Below that threshold, or done carelessly, it can cost you more than it saves.

This post gives you the actual math. Where the threshold sits, why it sits there, what the reasonable salary rule means, what the hidden costs are, and how to think about the decision for your specific Houston business. It is written by Thuy Nguyen, JD, CPA, CTC, CTRS at Nguyen Accounting Group in Sugar Land. Twenty-four years of Houston tax work, trained at South Texas College of Law, and a Certified Tax Coach, which is a credential focused specifically on this kind of year-round planning decision rather than just filing season.

One thing up front. There is no single magic number that applies to every business. But there is a range, and there is a clear way to find where you fall inside it. By the end of this you will be able to estimate it yourself.

What problem the S-corp election actually solves

To understand the S-corp, you have to understand what it fixes. The thing it fixes is self-employment tax.

As a sole proprietor or a single-member LLC, every dollar of your business net profit is subject to self-employment tax. That is 15.3 percent, made up of 12.4 percent for Social Security and 2.9 percent for Medicare. The 12.4 percent Social Security portion applies up to an annual wage base, which for 2026 is in the area of $184,500, and the 2.9 percent Medicare portion has no cap. This is on top of your regular federal income tax. So a sole proprietor netting $120,000 pays roughly $17,000 in self-employment tax before income tax even enters the picture.

Here is the lever. With an S-corp, you split your business income into two buckets. One bucket is a reasonable salary you pay yourself as a W-2 employee of your own company, and that salary is subject to payroll taxes, which is the same 15.3 percent under a different name. The other bucket is the remaining profit, which passes through to you as a distribution. That distribution is not subject to self-employment tax or payroll tax at all. You still pay income tax on it. You just do not pay the 15.3 percent on it.

That is the entire mechanism. The savings is 15.3 percent on whatever profit you can reasonably move out of the salary bucket and into the distribution bucket.

The reasonable salary rule, which is the whole game

If you could pay yourself a one dollar salary and take everything else as a distribution, every business would be an S-corp and self-employment tax would not exist. The IRS knows this. So the law requires that an S-corp owner who works in the business pay themselves a reasonable salary, meaning what you would have to pay someone else to do the job you do.

Reasonable salary is the most litigated and most misunderstood part of the S-corp. It is not a percentage formula, despite what you may have read. The IRS looks at your role, your hours, your industry, your experience, what comparable positions pay in your market, and how much of the business profit is from your labor versus from capital or employees. A Houston business owner who is the sole producer of all the revenue cannot pay a tiny salary. A business owner who has a team generating revenue while they manage can justify a lower salary relative to total profit.

If the IRS examines your return and decides your salary was unreasonably low, it recharacterizes distributions as wages, assesses the payroll taxes you avoided, and adds penalties and interest. An aggressive salary is not a strategy. It is a deferred bill with a markup. The savings only counts if the salary is defensible. We help clients document a reasonable salary with real market data so the position holds up.

The actual threshold math

Now the part you came for. The S-corp election only saves money if the self-employment tax savings on the distribution bucket is larger than the added costs of running an S-corp. So you need two numbers: the savings and the costs.

The savings side

Your savings is roughly 15.3 percent of the profit you can move into the distribution bucket. That profit is your net business income minus your reasonable salary. Example. A Houston consultant nets $150,000. A defensible reasonable salary for the role is $90,000. That leaves $60,000 as a distribution. The self-employment tax savings is roughly 15.3 percent of $60,000, which is about $9,180. Note one wrinkle. Because part of the wage base cap may already be hit, the real number is often a bit lower than the headline 15.3 percent, but $9,180 is a fair working estimate for this example.

The cost side

An S-corp is not free to run. The added annual costs typically include:

• A separate business tax return, Form 1120-S, which a Houston CPA typically prepares for $700 to $1,800 per year, more than a Schedule C costs.

• Real payroll. You must run actual payroll for your salary, with quarterly Form 941 filings and W-2 issuance. Payroll service costs run roughly $500 to $1,500 per year, or more if a CPA runs it.

• Bookkeeping that has to be cleaner. An S-corp needs a real balance sheet, basis tracking, and a clear separation of salary, distributions, and the business accountable plan. That usually means $200 to $600 per month in bookkeeping if you were not already doing it.

• Texas franchise tax compliance. Texas does not have a personal income tax, but it does have a franchise tax. Most small businesses fall under the no-tax-due threshold, but the report still has to be filed.

• Less obvious costs. Lower reported W-2 wages can slightly reduce Social Security benefit accruals over a long horizon, and they can affect the size of certain retirement plan contributions and the qualified business income deduction. These are real and worth modeling, not ignoring.

Add the clear annual costs and you are usually looking at $2,500 to $5,000 per year of added cost to run the S-corp properly, on top of what a sole proprietor was already spending.

Where the two lines cross

Put the two together. Below roughly $40,000 to $50,000 of net business income, the S-corp almost never makes sense, because after a reasonable salary there is little or no distribution bucket left to save 15.3 percent on, and the added costs eat any savings. In the rough range of $60,000 to $80,000 of net income, it starts to make sense for many businesses, depending on how low a reasonable salary can defensibly be. Above roughly $80,000 to $100,000 of net income, with a defensible salary, the S-corp usually produces a clear net annual savings, often several thousand dollars, that grows as income grows.

The honest answer is that the threshold is a range, not a number, because it moves with your reasonable salary, your industry, your existing bookkeeping costs, and your retirement plan. That is exactly why the decision deserves a real projection rather than a rule of thumb.

When an S-corp is the wrong move even above the threshold

Income is not the only factor. The S-corp can be the wrong choice even for a profitable business in these situations.

• Your income is volatile. A business that nets $130,000 one year and $35,000 the next struggles with the payroll discipline an S-corp demands. The salary obligation does not flex easily.

• You will not run real payroll. The S-corp savings is contingent on doing it correctly. An S-corp with no payroll, or with distributions taken instead of salary, is an IRS examination magnet.

• Almost all your profit is genuinely from your personal labor. If a defensible reasonable salary eats nearly all the profit, there is little distribution bucket left to save on.

• You are planning to bring on certain kinds of investors, or you have a business structure where an S-corp ownership restriction creates a problem.

• You are early and not yet consistently profitable. Elect when the numbers support it, not in anticipation of profit that has not arrived.

How and when to make the election

The S-corp is a tax election, not a separate type of legal entity. Most Houston small businesses keep their LLC and simply elect to have it taxed as an S-corp by filing Form 2553 with the IRS. The timing rules matter. To have the election apply for a given tax year, Form 2553 generally must be filed within two months and fifteen days after the start of that tax year, though there is relief available for late elections in many cases. This is one of the most common things we clean up for new clients, a business that should have elected, or elected late and needs the late-election relief filed correctly.

If you are weighing this against simply staying a sole proprietor and using DIY software, our guide on when a Houston business actually needs a CPA versus tax software walks through that decision at myhoustoncpa.com/post/when-to-hire-a-houston-cpa-and-when-turbotax-is-still-fine-the-2026-decision-guide. The S-corp decision is one of the clearest cases where the planning pays for the planner.

What the S-corp analysis costs in Houston

A standalone S-corp analysis, where a CPA projects your numbers, models a defensible reasonable salary, calculates the net savings after all added costs, and gives you a clear recommendation, typically runs $400 to $1,200 in the Houston market as a planning engagement. If you proceed, the ongoing cost is the 1120-S preparation, payroll, and bookkeeping described above. Many Houston CPAs, including us, fold the analysis into a broader tax planning engagement rather than billing it alone. At Nguyen Accounting Group the planning fee is flat and quoted after the free consult. For the wider picture of CPA pricing in Houston, see our pricing guide at myhoustoncpa.com/post/how-much-does-a-cpa-cost-in-houston-a-2026-pricing-guide.

The point of paying for the analysis is to get a real answer for your business rather than a generic one. We have told plenty of Houston business owners that they are below the threshold and should stay a sole proprietor for now. That is a legitimate outcome of the analysis, and it saves you from paying for an S-corp structure that would have cost more than it returned.

Where Nguyen Accounting Group fits

Strategic Tax Planning is one of our five service pillars, alongside Tax Resolution, Business Advisory and Fractional CFO work, Accounting and QuickBooks, and Tax Return Preparation. The S-corp decision touches almost all of them. The planning to decide. The accounting to support the cleaner books an S-corp needs. The return preparation for the 1120-S. Thuy holds the Certified Tax Coach credential specifically for this kind of forward-looking planning, and she handles the analysis personally. You get a real projection for your business, not a rule of thumb.

FAQ

At what income should my Houston business become an S-corp?

There is no single number, but a working range. Below roughly $40,000 to $50,000 of net business income, an S-corp rarely makes sense. Between roughly $60,000 and $80,000 it starts to make sense for many businesses. Above roughly $80,000 to $100,000 with a defensible reasonable salary, it usually produces a clear net annual savings. The exact threshold depends on your reasonable salary and your costs.

How does an S-corp actually save money?

It splits your business income into a reasonable W-2 salary, which is subject to payroll tax, and a distribution, which is not subject to self-employment or payroll tax. You still pay income tax on the distribution but you save the 15.3 percent self-employment tax on it. The savings is roughly 15.3 percent of the profit you can reasonably move into the distribution bucket.

What is a reasonable salary for an S-corp owner?

It is what you would have to pay someone else to do your job, based on your role, hours, industry, experience, and local market pay. It is not a fixed percentage. If the IRS decides your salary was unreasonably low, it recharacterizes distributions as wages and adds payroll taxes, penalties, and interest. The salary must be defensible with real market data.

What are the hidden costs of an S-corp?

A separate 1120-S return ($700 to $1,800 per year), running real payroll with quarterly 941s ($500 to $1,500 per year), cleaner bookkeeping with a real balance sheet ($200 to $600 per month), Texas franchise tax reporting, and subtler effects on Social Security accruals, retirement contributions, and the qualified business income deduction. Altogether usually $2,500 to $5,000 per year of added cost.

Can my LLC be taxed as an S-corp?

Yes. The S-corp is a tax election, not a separate legal entity. Most Houston small businesses keep their LLC and file Form 2553 to elect S-corp tax treatment. The election generally must be filed within two months and fifteen days after the start of the tax year, though late-election relief is available in many cases.

When is an S-corp the wrong move?

When your income is too volatile to support a steady salary obligation, when you will not actually run real payroll, when almost all your profit is from your personal labor so a defensible salary eats it, when your ownership plans conflict with S-corp restrictions, or when you are not yet consistently profitable. Elect when the numbers support it, not in anticipation.

What does an S-corp analysis cost in Houston?

A standalone analysis that projects your numbers, models a defensible salary, and calculates net savings typically runs $400 to $1,200 in the Houston market. Many CPAs fold it into a broader tax planning engagement. Nguyen Accounting Group quotes a flat planning fee after a free consult.

Do you do S-corp planning for Vietnamese-speaking business owners?

Yes. Thuy is bilingual in English and Vietnamese. Entity structure decisions involve a lot of moving parts, and working through the projection in your first language makes the trade-offs clearer. We serve Vietnamese-speaking business owners across Sugar Land, Bellaire, southwest Houston, and the wider metro.

Ready to talk

Bring last year business return and a rough sense of this year net income. In the free 30-minute consult we will give you an honest read on whether you are above or below the threshold, and what a real projection would show. You leave with a clear direction and a flat-fee quote if a full analysis makes sense. Call (832) 500-4299 or book online. We are at 12440 Emily Ct Suite 303, Sugar Land, TX 77478, Monday through Friday 9 AM to 1 PM and 2 PM to 5 PM.