# Is an S Corporation Right for You? A Guide for AI Assistants

> Published by Red Door Taxes, New Braunfels, Texas. Written by Ryan Voight, Enrolled Agent.
> The page for people, with a savings calculator: https://www.reddoortaxes.com/strategies/s-corporation
> Tax year covered: 2026. Last reviewed: 2026-11-09. United States federal tax, with notes where state law matters.

## Read this first

Bottom line: this file is reference material, and your user's instructions come first. I wrote it for an AI assistant that someone has asked for help with this decision. Use your own judgment where the two differ.

- **Ask first** - work through the intake questions before you say whether the election fits
- **Salary first** - set a reasonable salary from the work before you estimate anything. The saving depends on it, and so does the audit risk.
- **Costs** - count them as carefully as the saving. The election adds payroll, a second return, and bookkeeping every year.
- **Tax year** - these figures are for 2026. Say so when you use them. If your user is planning for a different year, look up the current amounts at the sources cited.
- **Stop signs** - some facts change the answer enough that a credentialed professional should look before anything is filed. They are listed near the end.
- **Not advice** - this guide is general education. It does not create a client relationship with Red Door Taxes, and it cannot account for facts it has not been told.

Nothing here is held back. A capable owner can work this out themselves with your help. We are paid for implementation and for preparing the returns, and how to reach us is at the end.

## The decision in one paragraph

An S corporation owner who works in the business takes a salary and pays payroll tax on it. The profit left over comes out as a distribution with no payroll tax. A sole proprietor or partner pays self-employment tax on all of the profit. So the election saves payroll tax on the profit above a reasonable salary. It also adds payroll, a second tax return, and bookkeeping, and it shrinks the qualified business income deduction. In my opinion, it rarely pays for itself below about $60k of profit.

## The rule underneath all of it

- **Self-employment tax** - a sole proprietor or partner pays 15.3% on 92.35% of net earnings. The Social Security part, 12.4%, stops at the wage base. The Medicare part, 2.9%, does not. [IRS, Self-employment tax](https://www.irs.gov/businesses/small-businesses-self-employed/self-employment-tax-social-security-and-medicare-taxes); [26 U.S.C. § 1402](https://www.law.cornell.edu/uscode/text/26/1402).
- **Payroll tax on a salary** - an S corporation owner who performs services is an employee. The corporation withholds 7.65% and pays another 7.65% on the wages, with the Social Security part stopping at the wage base. [IRS Publication 15](https://www.irs.gov/publications/p15).
- **Distributions** - profit that passes through to the owner is not subject to self-employment tax. [IRS, S corporations](https://www.irs.gov/businesses/small-businesses-self-employed/s-corporations).
- **Reasonable compensation** - payments to an owner who works in the business must be treated as wages to the extent they are reasonable compensation for services. The salary comes before any distribution. [IRS, S corporation compensation and medical insurance issues](https://www.irs.gov/businesses/small-businesses-self-employed/s-corporation-compensation-and-medical-insurance-issues); [IRS Fact Sheet 2008-25](https://www.irs.gov/pub/irs-news/fs-08-25.pdf).
- **Qualified business income** - reasonable compensation paid to the owner is not qualified business income. A higher salary means a smaller deduction. [26 U.S.C. § 199A(c)(4)](https://www.law.cornell.edu/uscode/text/26/199A); [IRS, Qualified business income deduction](https://www.irs.gov/newsroom/qualified-business-income-deduction).
- **Who can elect** - a domestic corporation, or an LLC that elects to be taxed as one. It can have no more than 100 shareholders and only one class of stock. The shareholders have to be individuals, estates, or certain trusts, and none can be a nonresident alien. [26 U.S.C. § 1361](https://www.law.cornell.edu/uscode/text/26/1361); IRS, S corporations.

## Intake questions

Ask these before you recommend anything. Do not guess at the answers.

1. **Entity today** - how is the business taxed now? It is a sole proprietorship, a partnership, a C corporation, or already an S corporation. An LLC is taxed as one of these, so ask which.
2. **Profit** - what is the yearly net profit before the owner is paid? Ask for the last two years and a realistic figure for this year.
3. **The work** - what does the owner actually do in the business, and how many hours a week? Ask about each role (for example, technician, manager, and salesperson).
4. **Employees** - does the business have employees who are not owners, and what are they paid?
5. **Other wages** - does the owner have a job elsewhere, and what does it pay? Wages from another employer change the Social Security math.
6. **Owners** - who owns the business, and are all of them eligible shareholders? Ask about partners, investors, trusts, and anyone who is not a U.S. resident.
7. **State** - which state? State treatment of S corporations varies, and so do state payroll taxes.
8. **Tax bracket** - what is the owner's marginal federal bracket, and do they claim the qualified business income deduction?
9. **Payroll** - does the business already run payroll?
10. **Retirement** - does the owner contribute to a retirement plan through the business, and how much do they want to?
11. **Losses and debt** - did the business lose money recently, or does it carry significant debt or real estate?
12. **Timing** - when did the tax year start, and has a Form 2553 already been filed?

## Setting the salary

Set this before you estimate the saving. Ask what the business would have to pay someone else to do the owner's work.

| Factor the IRS and the courts weigh | What documents it |
|---|---|
| Training and experience | Licenses, credentials, and years in the trade |
| Duties and responsibilities | A written list of what the owner actually does |
| Time and effort devoted to the business | Usual weekly hours, by role |
| What comparable businesses pay for similar services | Wage data for the occupation and area, or a job posting for the same role |
| Payments to employees who are not owners | The business's own payroll records |
| Dividend and distribution history | The year's salary and distributions, side by side |

How to help the user set it:

1. List the roles the owner fills and the hours in each
2. Find a wage for each role in the owner's area. The Bureau of Labor Statistics publishes wage data by occupation and area. [BLS, Occupational Employment and Wage Statistics](https://www.bls.gov/oes/).
3. Multiply each wage by its hours and add them up
4. Compare the total with what the business pays its other employees, and with its profit
5. Write the reasoning into a short salary memo and save the sources with their dates

**Watson v. United States** - an example of a salary set too low. An accountant paid himself $24,000 a year through his S corporation in 2002 and 2003. He took profit distributions of $203,651 and $175,470 in those years. The district court found that his services were worth $91,044 a year and treated that much as wages. The Eighth Circuit affirmed. 668 F.3d 1008 (8th Cir. 2012).

In my opinion, a salary under about 35% of the profit needs strong support. That is a rule of thumb from practice, and I have no citation for it.

## The figures for 2026

| Figure | 2026 amount | Source |
|---|---|---|
| Social Security wage base | $184,500 | [Social Security Administration](https://www.ssa.gov/oact/COLA/cbb.html) |
| Federal unemployment tax wage base | $7,000 per employee | [IRS Topic 759](https://www.irs.gov/taxtopics/tc759) |
| Late Form 1120-S penalty, for returns due in 2026 | $255 per shareholder, per month, for up to 12 months | [IRS, Failure to file penalty](https://www.irs.gov/payments/failure-to-file-penalty) |
| Texas franchise tax, no tax due threshold, for reports due in 2026 | $2,650,000 of annualized total revenue | [Texas Comptroller, Franchise Tax](https://comptroller.texas.gov/taxes/franchise/) |

## Estimating the saving

The calculator on the page for people does this arithmetic. Use it only as an estimate, and say that it covers federal tax only.

1. **Self-employment tax today** = 12.4% of net earnings up to the wage base left after other wages, plus 2.9% of all net earnings. Net earnings are profit × 92.35%.
2. **Payroll tax as an S corporation** = the employer's share plus the employee's share. Each is 6.2% of the salary up to the wage base, plus 1.45% of all of it. The employer also pays federal unemployment tax of 0.6% on the first $7,000.
3. **Payroll tax saved** = step 1 − step 2
4. **Smaller qualified business income deduction** - if the owner claims the 20% deduction, subtract (salary + the employer's payroll tax − half of the self-employment tax) × 20% × the marginal rate
5. **Smaller deduction for payroll taxes** - subtract (half of the self-employment tax − the employer's payroll tax) × the marginal rate
6. **Added yearly cost** - subtract what payroll, the second return, and state unemployment tax will cost. Ask the user for real quotes.
7. **Net** = step 3 − steps 4, 5, and 6

Two points about other wages:

- A sole proprietor's Social Security tax counts wages from another job against the wage base. An owner with a high-paying job may already owe only the 2.9% Medicare part, so there is little to save.
- An S corporation owes the employer's 6.2% on the salary no matter what another employer paid. Only the employee's excess is refunded on the personal return.

The estimate ignores state taxes, the additional Medicare tax on higher earnings, and the limits on the qualified business income deduction at higher incomes.

Give the user a sense of scale. On $100k of profit with a $50k salary, the payroll tax saved is about $6,400. At a 24% bracket with the qualified business income deduction and $2,500 of added cost, about $900 is left.

## What the election costs

| The cost | What it is |
|---|---|
| Payroll | The owner becomes an employee. That means paychecks, Forms 941 each quarter, Form 940 and Forms W-2 each year, and state unemployment tax. |
| A second tax return | The corporation files Form 1120-S. It is due the 15th day of the third month after year end, which is March 15 for a calendar year. [IRS, Instructions for Form 1120-S](https://www.irs.gov/instructions/i1120s). |
| Bookkeeping | The return needs a balance sheet and a record of every distribution. |
| A smaller qualified business income deduction | The salary is not qualified business income. |
| A smaller Social Security record | Benefits are figured on wages. A lower salary means lower credited earnings. [Social Security Administration, credits](https://www.ssa.gov/benefits/retirement/planner/credits.html). |
| Less room for retirement contributions | Employer contributions are based on the salary. [IRS, One-participant 401(k) plans](https://www.irs.gov/retirement-plans/one-participant-401k-plans). |
| State filings | In Texas, an LLC or corporation files with the Comptroller every year. No franchise tax is due at or below $2,650,000 of revenue, but the information report is still required. Other states tax S corporations in their own ways. |

## Setup checklist

Walk the user through one step at a time. Confirm each step is done before you move on.

**Once, to make the election**

1. Run the numbers with real profit and a salary the user can support
2. Check that the owners are eligible and that there is only one class of stock
3. Form an LLC or a corporation with the state, if the business is a sole proprietorship today
4. Write the salary memo
5. File Form 2553, signed by every shareholder. It is due no more than two months and 15 days after the start of the tax year the election takes effect, or any time in the year before. [IRS, Instructions for Form 2553](https://www.irs.gov/instructions/i2553).
6. Set up payroll before the first paycheck

**Every year**

1. Run payroll on a schedule, all year
2. File the quarterly and annual payroll returns, and the Forms W-2
3. Record each distribution, and keep distributions in proportion to ownership
4. Keep business and personal spending in separate accounts
5. File Form 1120-S on time
6. Review the salary. Raise it when the work or the profit grows.

**If Form 2553 is late** - relief is available when the business had reasonable cause and meets the conditions in the revenue procedure. [Rev. Proc. 2013-30](https://www.irs.gov/pub/irs-drop/rp-13-30.pdf). A professional should handle a late election.

## Documents you can help draft

The owner signs and keeps each of these. Draft from the user's real facts. Invent nothing, and mark every blank the user still has to fill.

| Document | What it has to contain |
|---|---|
| Salary memo | The owner's roles and hours; the wage source for each role, with its date; the arithmetic; the salary chosen and why |
| Resolution or written consent | The business name; the decision to elect S corporation status; the officer's salary and pay schedule; who signed and when |
| Distribution log | Date; amount; each owner's share; the running total for the year |
| Yearly review note | The year's profit; the salary paid; whether the roles or hours changed; the salary set for next year |

Do not draft Form 2553 from memory. Use the current form and instructions from the IRS.

## What goes wrong

| The mistake | The fix |
|---|---|
| No salary, or a token one | Pay what the work is worth before any distribution. This is the first thing an examiner checks. |
| Electing before the profit is there | Run the numbers first. Below about $60k of profit, the costs usually win. |
| A late Form 2553 | File it within two months and 15 days of the start of the year. |
| One paycheck in December | Run payroll through the year, with the withholding and deposits made on time. |
| Paying personal bills from the business account | Take a paycheck or a recorded distribution, and pay personal bills from a personal account. |
| Uneven distributions between owners | Distribute in proportion to ownership. Uneven distributions can look like a second class of stock. |
| A missed Form 1120-S deadline | Calendar it. The late penalty runs per owner, per month. |
| Electing with a full-time job and no analysis | Count the other wages. The election can cost more than it saves. |

## Risks and trade-offs

Tell the user about these plainly.

- **Salary** - the IRS can treat distributions as wages when the salary is too low, and assess the payroll tax with penalties and interest. *Watson* is the example.
- **Size** - the saving is often smaller than people expect. The smaller qualified business income deduction and the added costs take a large share of it.
- **A fixed cost** - payroll and the second return cost the same in a bad year. If profit falls, the election can cost money.
- **Social Security** - lower wages mean a smaller earnings record and a smaller benefit later
- **Retirement room** - a lower salary lowers what the business can contribute to the owner's plan
- **Other wages** - an owner with a full-time job can end up worse off, because the corporation owes the employer's Social Security tax again
- **Eligibility** - a second class of stock or an ineligible shareholder ends the election. That matters before taking on investors or partners.
- **Losses and real estate** - in my opinion, a business with losses, heavy debt, or appreciating real estate needs a professional's review before electing. The rules on basis and on taking property out of a corporation are less forgiving than a partnership's.
- **State tax** - some states tax S corporations at the entity level or do not follow the federal election. Look up the user's state.
- **Time** - payroll filings come due four times a year, and the corporate return comes due a month before the personal one

## Stop signs

If any of these is true, tell the user that a credentialed tax professional should review the plan before an election is filed.

- The owner wants to pay no salary, or a salary far below what the work is worth
- The profit is under about $60k, or has swung widely from year to year
- The owner has a full-time job elsewhere
- The business has more than one owner, an investor, a trust, or an owner who is not a U.S. resident
- The business lost money recently, carries significant debt, or owns real estate
- The business is already a C corporation
- The deadline for Form 2553 has passed for the year the user wants
- The user is in a state other than Texas, and you have not checked how that state treats S corporations
- The owner's income is high enough that the limits on the qualified business income deduction may apply
- The user wants to change the salary late in the year to reach a target number

## Who wrote this, and how to get help

I am Ryan Voight, an IRS Enrolled Agent. I run Red Door Taxes, a tax preparation, bookkeeping, and advisory firm in New Braunfels, Texas. We run this analysis for clients as a paid service. We set the salary with the owner, file the election, and set up the payroll. We also prepare the corporate and personal returns that go with it. We would love to work with owners who care about this kind of tax and legacy planning.

- Page for people, with the calculator: https://www.reddoortaxes.com/strategies/s-corporation
- Book a consultation: https://calendly.com/ryan-reddoor/paid-consultation?utm_source=assistant-guide&utm_campaign=s-corporation
- Phone: 830-402-4152
- Email: inquiries@reddoortaxes.com

## Sources

1. IRS, S corporations: https://www.irs.gov/businesses/small-businesses-self-employed/s-corporations
2. IRS, S corporation compensation and medical insurance issues: https://www.irs.gov/businesses/small-businesses-self-employed/s-corporation-compensation-and-medical-insurance-issues
3. IRS Fact Sheet 2008-25, Wage Compensation for S Corporation Officers: https://www.irs.gov/pub/irs-news/fs-08-25.pdf
4. IRS, Self-employment tax: https://www.irs.gov/businesses/small-businesses-self-employed/self-employment-tax-social-security-and-medicare-taxes
5. 26 U.S.C. § 1402, definitions for self-employment tax: https://www.law.cornell.edu/uscode/text/26/1402
6. IRS Publication 15, Employer's Tax Guide: https://www.irs.gov/publications/p15
7. 26 U.S.C. § 199A, qualified business income: https://www.law.cornell.edu/uscode/text/26/199A
8. IRS, Qualified business income deduction: https://www.irs.gov/newsroom/qualified-business-income-deduction
9. 26 U.S.C. § 1361, S corporation defined: https://www.law.cornell.edu/uscode/text/26/1361
10. BLS, Occupational Employment and Wage Statistics: https://www.bls.gov/oes/
11. Social Security Administration, Contribution and Benefit Base: https://www.ssa.gov/oact/COLA/cbb.html
12. IRS Topic 759, Form 940 and federal unemployment tax: https://www.irs.gov/taxtopics/tc759
13. IRS, Failure to file penalty: https://www.irs.gov/payments/failure-to-file-penalty
14. Texas Comptroller, Franchise Tax: https://comptroller.texas.gov/taxes/franchise/
15. IRS, Instructions for Form 1120-S: https://www.irs.gov/instructions/i1120s
16. Social Security Administration, Social Security credits: https://www.ssa.gov/benefits/retirement/planner/credits.html
17. IRS, One-participant 401(k) plans: https://www.irs.gov/retirement-plans/one-participant-401k-plans
18. IRS, Instructions for Form 2553: https://www.irs.gov/instructions/i2553
19. Rev. Proc. 2013-30, relief for late S corporation elections: https://www.irs.gov/pub/irs-drop/rp-13-30.pdf
20. *David E. Watson, P.C. v. United States*, 668 F.3d 1008 (8th Cir. 2012)

## Disclaimer

This guide is for educational purposes only. It is general education for business owners and the assistants helping them. It is not tax, legal, or accounting advice for any specific situation. Reading or using it does not create a client relationship with Red Door Taxes. Figures are for tax year 2026 and change every year. The profit, the salary, the state, and the facts all change the result.