Can an LLC Be Taxed as an S Corp? How It Works

An LLC taxed as an S corp is the most common way a small business gets S corporation treatment, and the mechanics are simpler than the two-form process people expect. This guide covers the deemed election that makes one form enough, the membership tests an LLC has to pass, the timing, what changes on payroll and the return once the election takes effect, and the operating agreement clause that can quietly disqualify the whole thing. Whether the election is worth making is a separate question, answered with numbers in S corp vs LLC.

One form does both jobs: the deemed election

An LLC starts out as a partnership or a disregarded entity for federal tax, and an S corporation has to be a corporation. The regulations close that gap without a second form. An eligible entity that timely elects S status “is treated as having made an election under this section to be classified as an association,” provided it meets the other requirements of a small business corporation as of the effective date (Treas. Reg. 301.7701-3(c)(1)(v)(C)). The Form 2553 instructions say the same in plain terms: an eligible entity that meets the tests “will be treated as a corporation as of the effective date of the S corporation election and doesn't need to file Form 8832” (Instructions for Form 2553), and Publication 3402 adds that “by filing Form 2553, an LLC is deemed to have elected classification as a corporation in addition to the S corporation classification” (Publication 3402).

That deemed corporate election stays in place until the LLC files a valid Form 8832 to be classified as something else. The form itself is covered part by part in Form 2553: how to elect S corp status; the entity classification form an LLC would use to become a C corporation instead is covered in Form 8832.

Which LLCs qualify

The S corporation tests in IRC 1361(b)(1) apply to the LLC's members exactly as they apply to a corporation's shareholders. The Form 2553 instructions list them:

• A domestic entity eligible to elect corporate treatment (an LLC formed under a state statute qualifies).
• No more than 100 members. A married couple counts as one, and so do all members of a family as IRC 1361(c)(1) defines it: a common ancestor, lineal descendants and their spouses.
• Only individuals, estates, certain trusts and exempt organizations described in sections 401(a) or 501(c)(3) as members. A corporation, a partnership or an LLC taxed as a partnership that holds an interest disqualifies the entity.
• No nonresident alien members.
• One class of stock, which for an LLC means every membership interest has identical rights to distributions and liquidation proceeds. Voting differences are fine.
• Not a bank on the reserve method, an insurance company or a DISC, and a permitted tax year (usually the calendar year).

When to file, and what happens if you are late

Form 2553 is due no more than 2 months and 15 days after the start of the tax year the election covers, or any time during the year before (IRC 1362(b); Form 2553 instructions). For a calendar-year LLC that wants S status from January 1, that means filing by March 15. A new LLC counts from the earliest of the date it first had members, assets or began doing business. The IRS generally sends a determination within 60 days; the acceptance arrives as a CP261 notice. If a calendar-year election is filed late, the instructions say it generally takes effect the following year, unless the LLC qualifies for relief: a late S election and the deemed classification election can both be treated as timely if the LLC shows reasonable cause and requests relief within 3 years and 75 days of the intended effective date. The relief procedure, the statement it requires, and where to send the form are in the Form 2553 guide. One caution from the instructions: do not file Form 1120-S for any year before the election takes effect.

What changes after the election

Payroll starts. Once the LLC is a corporation for tax purposes, a member who is an officer and works in the business is an employee by statute (IRC 3121(d)(1); Publication 15). The IRS requires reasonable compensation “before non-wage distributions may be made,” and it can reclassify distributions as wages when the salary is missing or too low (IRS compensation page). That means Forms W-4 and W-2, quarterly Form 941, Form 940 and tax deposits from the first pay date; Managed Payroll (from $25 per employee per month) runs that side. How to set the number is in what is a reasonable salary for an S corp owner, and the monthly routine is in how to pay yourself from an S corp.

The return changes. The LLC files Form 1120-S each year the election is in effect and issues a Schedule K-1 to each member. Members “must include their share of the income on their tax return whether or not it is distributed to them,” and that share “isn't self-employment income” (Form 1120-S instructions; Shareholder's K-1 instructions). Each member's share is figured per share, per day (IRC 1377(a)(1)), which is why distributions have to follow ownership percentages rather than the flexible draws a partnership agreement allows.

Fringe benefits follow the 2% shareholder rules. For fringe benefits the S corporation is treated as a partnership and any more-than-2% member as a partner (IRC 1372). Health premiums the LLC pays for such a member go on the W-2 and come back as a deduction on the member's return; see how S corp owners deduct health insurance.

The operating agreement trap: one class of stock

This is where LLCs fail the S test after the fact. A corporation has one class of stock only “if all outstanding shares of stock of the corporation confer identical rights to distribution and liquidation proceeds” (Treas. Reg. 1.1361-1(l)(1)). The test looks at the “governing provisions,” which the regulation defines as the corporate charter, articles, bylaws, applicable state law and binding agreements relating to distribution and liquidation proceeds (Treas. Reg. 1.1361-1(l)(2)(i)). For an LLC, the operating agreement is a governing provision.

Operating agreements drafted for partnership tax often contain preferred returns, special allocations of profit and loss, capital-account-based liquidation waterfalls or distribution priorities for one member. Any of those can give one interest different rights to distributions or liquidation proceeds, and with them a second class of stock, which ends the election. The regulation does give room on timing: distributions that differ in timing or amount are given appropriate tax effect but do not by themselves create a second class while the governing provisions stay identical, and state-law requirements to withhold or pay state income tax for some members are disregarded (Treas. Reg. 1.1361-1(l)(2)(i) and (ii)). The fix is ordinary: amend the operating agreement before the effective date so that every interest shares distributions and liquidation proceeds in proportion to ownership, and take distributions that way from then on.

Single-member LLC taxed as an S corp

A one-member LLC can elect S status the same way. The difference is the owner's own status. Before the election, the IRS says an individual owner of a disregarded single-member LLC “isn't an employee of the LLC” and pays self-employment tax on the net earnings (Publication 3402). After it, the same person is a corporate officer and an employee, so the Schedule C stops, the W-2 starts and the profit above salary comes through on a K-1 free of self-employment tax. Whether that trade is worth the payroll and return costs depends on the profit level; the three-way choice is laid out in LLC vs S corp vs C corp.

Sources: 26 CFR 301.7701-3, classification of certain business entities; 26 CFR 1.1361-1, S corporation defined (classes of stock); 26 U.S.C. 1361, S corporation defined; 26 U.S.C. 1362, election; revocation; termination; 26 U.S.C. 1366, pass-thru of items to shareholders; 26 U.S.C. 1372, partnership rules to apply for fringe benefit purposes; 26 U.S.C. 1377, pro rata share; 26 U.S.C. 3121, definitions (officers as employees); IRS, Instructions for Form 2553 (Rev. December 2020); IRS, Publication 3402, Taxation of Limited Liability Companies (Rev. March 2020); IRS, Instructions for Form 1120-S (2025); IRS, Shareholder’s Instructions for Schedule K-1 (Form 1120-S) (2025); IRS, S corporation compensation and medical insurance issues (reviewed March 3, 2026); IRS, When to get a new EIN; IRS, Publication 15 (2026), Employer’s Tax Guide. Figures and rules checked against these sources on September 26, 2026. This is general information, not tax advice for your situation. Tax services are provided by licensed tax professionals under a separate engagement agreement. BEG does not provide tax advice.