When is an S-corp worth it for a practice owner?
An S-corporation election starts to pay when the business profit meaningfully exceeds what the owner's own labor is worth. Profit above a reasonable salary passes through without being subject to Social Security and Medicare tax, and that saving is the primary benefit. The saving on each dollar is smaller once profit passes the Social Security contribution and benefit base for the year, because the Social Security portion of self-employment tax already stops at that base, reduced by any wages paid to the owner in the year (Section 1402(b)(1)), so on the excess only the Medicare portion and, above the statutory thresholds, the Additional Medicare tax are at stake (Section 1401(b)(2)). Against it run real costs: running payroll, filing a separate Form 1120-S, higher preparation fees, and the exposure that comes with having to defend the salary figure. There is no universal dollar threshold, because the answer depends on how much of the profit is attributable to the owner's services rather than to staff, equipment, or capital.
What is the deadline to elect S-corp status?
Form 2553 must be filed no more than two months and fifteen days after the beginning of the tax year the election is to take effect, or at any point during the preceding tax year (Section 1362(b)(1)); for a calendar-year business electing for the current year that is March 15, and when that last day falls on a Saturday, Sunday, or legal holiday, a filing on the next day that is none of those is timely (Section 7503). A newly formed entity measures that window from the start of its first tax year, which is the date it first has shareholders, acquires assets, or begins doing business, whichever happens first.
Can I still elect S-corp status late?
Usually yes. Revenue Procedure 2013-30 provides simplified relief for a late election filed generally within three years and seventy-five days of the intended effective date, provided the entity had reasonable cause for missing the deadline, would otherwise have qualified, and everyone involved has reported consistently with the election having been in effect. The relief is requested on the Form 2553 itself with a reasonable-cause statement attached rather than through a private letter ruling.
Can a PLLC or professional corporation be an S-corp?
Yes. S-corporation status is a federal tax election layered on top of whatever entity a state allows, so a professional limited liability company or professional corporation can generally make it. The federal eligibility rules still apply: no more than 100 shareholders, only individuals and certain trusts and estates as shareholders, no nonresident alien shareholders, and only one class of stock. State law adds its own constraint, because most states restrict ownership of a professional entity to licensed members of that profession.
How does an S-corp reduce self-employment tax?
A sole proprietor or an LLC member active in the business pays self-employment tax on the net profit reduced by the deduction in Section 1402(a)(12) equal to one-half of the combined Social Security and Medicare rates applied to it (Section 1402(a)), with the Social Security portion stopping at the contribution and benefit base for the year, reduced by any wages paid to the owner in the year (Section 1402(b)(1)). In an S-corporation, only the shareholder-employee's wages are subject to Social Security and Medicare tax; the remaining profit passes through on a Schedule K-1 free of those taxes. The saving is therefore the employment tax on the profit above reasonable compensation, which is exactly why the salary figure is the number that gets examined.
What are the downsides of an S-corp?
Payroll has to be run and deposited on schedule, a separate Form 1120-S is due each year, and preparation costs rise. The one-class-of-stock rule limits how owners can be paid differently from one another. Shareholder basis must be tracked to know whether distributions and losses are usable. Health insurance premiums for a more-than-2% shareholder must be included in that shareholder's W-2 wages to stay deductible. And once revoked, an S election generally cannot be remade for five years without IRS consent.
General educational information about United States federal tax rules, current as of the review date above. Tax law changes and every situation turns on its own facts. This is not tax, legal, or financial advice and does not create a client relationship. Inflation-adjusted figures should be confirmed for the year in question before relying on them.
