
Business Advisory Services
Everything you need to help you launch your new business entity from business entity selection to multiple-entity business structures.
Hey - Our site just had a makeover and we are sorting through the hiccups!
Hey - Our site just had a makeover and we are sorting through the hiccups!

Everything you need to help you launch your new business entity from business entity selection to multiple-entity business structures.

Designed for rental property owners where WCG CPAs & Advisors supports you as your real estate CPA.

Everything you need from tax return preparation for your small business to your rental to your corporation is here.

Table Of Contents


Let’s run through it, shall we?
The basic Section 199A pass-through deduction is 20% of net qualified business income, which is huge. If you make $200,000, the deduction is $40,000 times your marginal tax rate of 24% which equals $9,600 in your pocket. The is direct cash in your pocket. Extra cheese on your whopper!
But you knew all this since you’re smart and you’ve been snooping around the internets in your PJs sipping cold coffee. Perhaps what you didn’t know is this $200,000 cannot be viewed in isolation when it comes to self-employment taxes, self-employed health insurance and retirement plan contributions. Moving on…

(vi) Other deductions. Generally, deductions attributable to a trade or business are taken into account for purposes of computing QBI to the extent that the requirements of section 199A and this section are otherwise satisfied. For purposes of section 199A only, deductions such as the deductible portion of the tax on self- employment income under section 164(f), the self-employed health insurance deduction under section 162(l), and the deduction for contributions to qualified retirement plans under section 404 are considered attributable to a trade or business to the extent that the individual’s gross income from the trade or business is taken into account in calculating the allowable deduction, on a proportionate basis to the gross income received from the trade or business.
Here is the key phrase- “For purposes of section 199A only, deductions … are considered attributable to a trade or business” and therefore reduce the qualified net business income for the calculation of the Section 199A. In other words, you would not have these expenses if you otherwise did not have a small business. Sure, you pay Social Security and Medicare taxes, pay health insurance premiums and contribute to a 401k plan with your W-2 job, but those “expenses” are attributed to your employment; same concept here.
What does all this mean? Before we get into that, the last sentence is crazy lawyer talk- “to the extent that the individual’s gross income from the trade or business is taken into account in calculating the allowable deduction, on a proportionate basis to the gross income received from the trade or business.” We’ll speculate on what this tidbit means since guidance specific to this phrase is not available or at least cannot found in our research databases (Thomson Reuters and Bloomberg).
The best way to show this is to jump right into a table-
| Scenario 1 | Scenario 2 | |
| Net Business Income on Schedule C | 100,000 | 100,000 |
| less Deductible Portion of SE Tax | 7,065 | 7,065 |
| less Self-Employed Health Insurance (SEHI) | 12,000 | |
| less 401k Plan / SEP IRA Contribution | 37,087 | |
| Net Business Income for Section 199A Calc | 92,935 | 43,848 |
| Section 199A Qualified Business Income Deduction | 18,587 | 8,770 |
What are we showing here? We are showing that the qualified business income must be reduced by the amount of deductible self-employment taxes, self-employed health insurance premiums and 401k / SEP IRA contributions. What jumps right out at you is the massive change in the Section 199A deduction between the two scenarios. We speak with people on a near-hourly basis who want to maximize the Section 199A deduction; Yes, we do too! But… let’s not lose track of the overall income tax savings!
See below-
| Delta in Section 199A Deduction | 9,817 |
| Delta in SEHI / 401k Deductions | 49,087 |
| Tax Savings @22% in Scenario 2 | 8,639 |
What are we showing here? The $9,817 above represents the difference in Section 199A deduction calculation between Scenario 1 and 2 in the previous table. The $49,087 is the sum of the self-employed health insurance premiums and the 401k / SEP IRA contribution (this example is a 401k since a SEP IRA could not reach $37,087 with $100,000 in biz income).
If you subtract $9,817 from $49,087 you get $39,270, even in Canada. Multiply this by 22% (assumed marginal tax rate) and you get $8,639. This is the difference, cash in your pocket difference, by deducting SEHI and 401k after the reduction in Section 199A benefits. So, Yes, you short-changed yourself on a strict Section 199A deduction, but your overall tax world is dramatically improved with these deductions.
The following table is crazy long, but it illustrates the difference in overall tax savings by electing your LLC to be taxed as an S corporation. Here are the assumptions-
| No S | S Corp | |
| Biz Income | 100,000 | 100,000 |
| Salary / Officer Comp | 35,000 | 35,000 |
| SEHI, HSA, etc | 12,000 | 12,000 |
| Employer 401k / SEP IRA | 37,087 | 8,750 |
Here we go…
| ln | No S | S Corp | |
| 1 | Net Business Income Before Wages, etc. | 100,000 | 100,000 |
| 2 | less W-2 Wages, includes SEHI | 0 | 35,000 |
| 3 | less Self-Employment Tax / Employer Payroll Taxes | 7,065 | 1,760 |
| 4 | less Self-Employed Health Insurance (SEHI) | 12,000 | 0 |
| 5 | less Employer 401k / SEP IRA | 37,087 | 8,750 |
| 6 | Section 199A Qualified Business Income | 55,848 | 54,491 |
| Adjustments to Adjusted Gross Income / Net Business Income | |||
| 7 | less Social Security Tax | 5,726 | 0 |
| 8 | less Medicare Tax | 1,339 | 0 |
| 9 | less SEHI, 401k | 49,087 | 31,000 |
| 10 | Other Taxable Income | 0 | 0 |
| 11 | Adjusted Gross Income | 43,848 | 58,491 |
| 12 | Itemized / Std Deductions | 24,000 | 24,000 |
| 13 | Taxable Income Before Section 199A | 19,848 | 34,491 |
| 14 | Section 199A Net Biz Income | 11,170 | 10,898 |
| 15 | Section 199A W-2 Wage Limit | 0 | 17,500 |
| 16 | Section 199A Taxable Income Limit | 3,970 | 6,898 |
| 17 | Section 199A Benefit (lower of ln 14, 15, 16) | 3,970 | 6,898 |
| 18 | Marginal Income Tax Rate | 12% | 12% |
| 19 | Income Tax Benefit from Section 199A | -476 | -828 |
| 20 | plus Self-Employment Tax | 14,130 | 0 |
| 21 | plus Tax on Line 12 Delta (above) | 0 | 1,757 |
| 22 | plus Payroll Tax (Employee and Employer) | 0 | 3,519 |
| 23 | Net Tax After Section 199A Benefit | 13,653 | 4,448 |
| 24 | S Corp Benefit SE Tax Reduction Only | 10,611 | |
| 25 | S Corp Benefit Section 199A Only | -1,406 | |
| 26 | Net S Corp Benefit $ | 9,205 |
Wow! That’s a lot to take in. The big takeaway is line 6. Note how the net business income for use in calculating the Section 199A deduction is nearly identical between a non-S Corp and an S Corp. The reason is that such a large chunk is being walloped off because of self-employed health insurance and 401k / SEP IRA contributions relative to the $100,000 net business income.
Also keep in mind that self-employed health insurance premiums are a component of officer compensation (also known as reasonable shareholder salary), but it does not increase Social Security and Medicare taxes. Approximately $1,836 of the $9,205 above is attributed to the $12,000 in health insurance premiums.
Recall that we take the lower of lines 14 and 16, and line 15 only factors in when you exceed the 24% marginal tax bracket as a household. Therefore, while your Section 199A deduction benefit (line 19) is lower in S Corp land, the overall tax savings is much higher (due to the reduced self-employment tax).
Let’s look at $200,000 in net business income.
| ln | No S | S Corp | |
| 1 | Net Business Income Before Wages, etc. | 200,000 | 200,000 |
| 2 | less W-2 Wages, includes SEHI | 0 | 70,000 |
| 3 | less Self-Employment Tax / Employer Payroll Taxes | 10,918 | 4,437 |
| 4 | less Self-Employed Health Insurance (SEHI) | 12,000 | 0 |
| 5 | less Employer 401k / SEP IRA | 37,087 | 17,500 |
| 6 | Section 199A Qualified Business Income | 151,995 | 108,063 |
| Adjustments to Adjusted Gross Income / Net Biz Income | |||
| 7 | less Social Security Tax | 8,240 | 0 |
| 8 | less Medicare Tax | 2,678 | 0 |
| 9 | less SEHI, 401k | 49,087 | 31,000 |
| 10 | Other Taxable Income | 0 | 0 |
| 11 | Adjusted Gross Income | 139,995 | 147,063 |
| 12 | Itemized / Std Deductions | 24,000 | 24,000 |
| 13 | Taxable Income Before Section 199A | 115,995 | 123,063 |
| 14 | Section 199A Net Biz Income | 30,399 | 21,613 |
| 15 | Section 199A W-2 Wage Limit | 0 | 35,000 |
| 16 | Section 199A Taxable Income Limit | 23,199 | 24,613 |
| 17 | Section 199A Benefit (lower of ln 14, 15, 16) | 23,199 | 21,613 |
| 18 | Marginal Income Tax Rate | 22% | 22% |
| 19 | Income Tax Benefit from Section 199A | -5,104 | -4,755 |
| 20 | plus Self-Employment Tax | 21,836 | 0 |
| 21 | plus Tax on Line 12 Delta (above) | 0 | 1,555 |
| 22 | plus Payroll Tax (Employee and Employer) | 0 | 8,874 |
| 23 | Net Tax After Section 199A Benefit | 16,732 | 5,674 |
| 24 | S Corp Benefit SE Tax Reduction Only | 12,962 | |
| 25 | S Corp Benefit Section 199A Only | -1,904 | |
| 26 | Net S Corp Benefit $ | 11,058 |
Again, a lot to take in. Let’s chat about your unique situation!
Remember that crazy sentence from before- “to the extent that the individual’s gross income from the trade or business is taken into account in calculating the allowable deduction, on a proportionate basis to the gross income received from the trade or business.” We take this to mean that if you had income that was not considered qualified business income such as interest and dividends earned within the business, then the reduction in QBI due to the deductible portion of self-employment tax, self-employed health insurance premiums and retirement plan contributions would be pro-rated using the portion of QBI as a fraction of gross business income.
As of this writing, we cannot find any authoritative guidance to expand on this, support this, or otherwise clear up some crummy code.
Here is our summary of the major issues recently updated by the final regulations, rental property safe harbor (Notice 2019-7) and how all this crud affects S corporations-
A 20% deduction on qualified business income for pass-through entities like LLCs and S Corps.
S Corps slightly reduce the Section 199A deduction but can significantly lower self-employment taxes, increasing overall tax savings.
Deductible self-employment taxes, self-employed health insurance premiums, and retirement plan contributions.
Yes, it reduces self-employment taxes and positions SEHI and retirement contributions within payroll, maximizing total tax savings.
Schedule C allows full SEHI and retirement deductions but pays full self-employment tax; S Corp trades a slightly smaller 199A deduction for big SE tax savings.
No, interest, dividends, and other non-QBI income are excluded from the Section 199A calculation.
Optimize W-2 salary, track SEHI and retirement contributions, and consider the S Corp election for self-employment tax savings.
Yes, certain rental activities can qualify, but safe harbor rules (Notice 2019-7) apply.
Contributions reduce net QBI and therefore slightly lower the Section 199A deduction, but they still provide overall tax benefits.
WCG offers guides, PDFs, and consultations covering Section 199A for small business owners, LLCs, S Corps, and rental properties.

Want to talk to us about tax return preparation, tax planning and strategy, and all the other things that go with it? We are eager to assist! The button below takes you to our Getting Started webpage, but if you want to talk first, please give us a call at 719-387-9800 or schedule an discovery meeting.
Jason Watson, CPA is a Partner and the CEO of WCG CPAs & Advisors, a boutique consultation and tax preparation CPA firm serving clients nationwide with 7 partners and over 90 tax and accounting professionals specializing in small business owners and real estate investors located in Colorado Springs.
He is the author of Taxpayer’s Comprehensive Guide on LLC’s and S Corps and I Just Got a Rental, What Do I Do? which are available online and from mostly average retailers.
Table Of Contents

Tax planning season is here! Let's schedule a time to review tax reduction strategies and generate a mock tax return.

Tired of maintaining your own books? Seems like a chore to offload?
Did you want to chat about this? Do you have questions about us? Let’s chat!
The tax advisors, business consultants and rental property experts at WCG CPAs & Advisors are not salespeople; we are not putting lipstick on a pig expecting you to love it. Our job remains being professionally detached, giving you information and letting you decide within our ethical guidelines and your risk profiles.
We see far too many crazy schemes and half-baked ideas from attorneys and wealth managers. In some cases, they are good ideas. In most cases, all the entities, layering and mixed ownership is only the illusion of precision. As Chris Rock says, just because you can drive your car with your feet doesn’t make it a good idea. In other words, let’s not automatically convert “you can” into “you must.”
Let’s chat so you can be smart about it.
We typically schedule a 20-minute complimentary quick chat with one of our Partners or our amazing Senior Tax Professionals to determine if we are a good fit for each other, and how an engagement with our team looks. Tax returns only? Business advisory? Tax strategy and planning? Rental property support?

Everything you need to help you launch your new business entity from business entity selection to multiple-entity business structures.

Designed for rental property owners where WCG CPAs & Advisors supports you as your real estate CPA.

Everything you need from tax return preparation for your small business to your rental to your corporation is here.


