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Will C Corporations be the Comeback Kid of 2018?

Business owners are curious about the decrease in the C corporation income tax rate to a flat 21%, which begins in 2018 as a result of The Tax Cuts and Jobs Act, signed into law in late 2017.  Prior to 2018, C corporations paid a maximum federal tax rate of 35%.  This decrease in the corporate income tax rate is a real cost savings to owners of C Corporations,  and it has owners of S Corporations now wondering – If my personal income tax rate is greater than 21%, will it now be beneficial to be taxed as a C Corporation rather than an S Corporation?   Will C Corporations be the Comeback Kid of the future, or will the choice of entities remain the same?

c corporations


S Corporations generally do not pay income taxes at the entity level.  The income of S Corporations is “passed through” to the owners based on his/her corresponding ownership percentage, and the individual owner pays tax on the S Corp earnings based on his/her personal income tax rates.  Many individuals are in a tax bracket which is well above the 21% rate.  Below is a table which shows the new 2018 individual income tax rates for a filer who is single:

If taxable income is: The tax is:
Not over $9,525 10% of taxable income
Over $9,525 but not over $38,700 $952.50 plus 12% of the excess over $9,525
Over $38,700 but not over $82,500 $4,453.50 plus 22% of the excess over $38,700
Over $82,500 but not over $157,500 $14,089.50 plus 24% of the excess over $82,500
Over $157,500 but not over $200,000 $32,089.50 plus 32% of the excess over $157,000
Over $200,000 but not over $500,000 $45,689.50 plus 35% of the excess over $200,000
Over $500,000 $150,689.50 plus 37% of the excess over $500,000

Once a single taxpayer’s ordinary income is above, roughly, $160,000, the individual is paying an effective federal rate above 21%.  We CPAs have had training courses and have read numerous articles regarding the new tax law, and have been told that, generally, the beneficial tax treatment of S Corporations does not disappear with the new tax law.  Being a numbers person, I needed to do some math for myself to prove that being an S corporation is still beneficial.  So let’s walk through a simplified hypothetical example, to see whether a taxpayer will pay less Federal tax as a C Corporation rather than an S Corporation.  In order to do this, we need to formulate some assumptions.  Let’s keep it very simple, and assume that the Corporation is owned by one person who is single, and is employed by the corporation, and earns $150,000 of wages.  The income of the corporation (after wages, before income taxes) is $500,000, and the net income of the corporation is typically distributed to the owner.  Let’s compute how much money the owner ends up with in his pocket, after taxes, when comparing C and S Corporation taxes under the new rules.  For simplicity, the 3.8% Net Investment Income Tax and state income taxes have been ignored.

As shown above, based on my assumptions, the taxpayer is still better off keeping his corporation taxed as an S Corporation rather than switching to a C Corporation.  Although being taxed as an S Corporation subjects this particular taxpayer to a 35% marginal individual income tax rate, he is still better off as an S Corporation rather than a C Corporation.  The main reason that it turns out this way is two-fold:

  1. Although the corporate tax rate has significantly decreased for most C Corporations, the second level of tax still remains. C Corporations are taxed once at the entity level, and the dividends paid are then taxed a second time at the individual level.
  2. The assumption is that the individual gets the new 20% deduction on the taxable income of the S Corporation. This 20% deduction is the hot topic that accountants are buzzing about, because complications surround this new deduction, but are beyond the scope of this article.

If the C Corporation does not pay dividends, then the second level of tax does not apply for that year, but it will when that money is distributed.

Additionally, many people do not realize that when a C Corporation has taxable income, and has a history of NOT distributing it via dividends, there is a special tax called the accumulated earnings tax, which the IRS may impose if they think that a corporation is not paying dividends for the purpose of avoiding the 2nd level of tax at the personal level.  Another important consideration surrounds the tax implications if the Company is sold. One of the main reasons taxpayers elect to be taxed as S Corporations involves the tax benefit over the C Corporation when the Company is sold.  When small businesses are sold, most of the time, the assets of the corporation are sold rather than the stock.   When the assets of the entity are sold, the C Corporation pays an entity level tax (the 21%), and when the cash is distributed to the shareholders, the 2nd level of tax is incurred  (most likely at the lower 15% or 20% dividend or capital gain rates).  If the entity is an S Corporation, the gain is still recognized at the entity level , but the tax is paid once, at the individual level, and most of the gain will likely be taxed at the 15%or 20% capital gain rates – and only once.  This scenario continues to give S Corporation owners a large tax benefit over C Corporation owners.  An added benefit for S Corporations is that if the owner of the Corporation is actively involved in the business, the earnings and the gain on sale of the entity will not be subject to the 3.8% net investment income tax (NIIT), but this benefit is not available to C Corporation owners.

I didn’t mention much about partnerships in this article, but a similar thought process can be applied to partnerships and Limited Liability Companies (LLCs) which are taxed similarly to S Corporations (as a pass-through entity).  Each situation is different.  The above is merely a hypothetical  example,and if there are any questions as to what is best for you or your business, then don’t be shy about discussing it with your accountant.

I will continue to “do the math” for more business owners, but in the back of my mind – if the new 20% deduction is applicable to the S Corporation owner, and if the Corporation typically makes distributions, then the math will most likely show that the benefit of being an S Corporation over a C Corporation is still very alive.  Even if the tax benefit of the S corporation over the C corporation owner dwindles, the benefit of the tax situation for an S corporation owner in an asset sale situation remains, and the accumulated earnings tax of the C Corporation is still lurking.  Therefore, I would venture to say that in most cases, planning and analysis will reveal that most S Corporations should remain S Corporations, and that C Corporations will not be the Comeback Kid of the future.

Meet the Author

Sally Silver graduated from Shepherd College in 1990 with a Bachelor of Science in Accounting and later Virginia Polytechnic and State University in 1991 with a Master of Accountancy, Tax Specialization. Before joining YHB in 1998, Sally worked for KPMG as well as private industry as a Tax Manager.

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