S-Corp Election in Pennsylvania (Form 2553) (2026)

Q: What is the deadline to file Form 2553 in Pennsylvania?

Generally the 15th day of the third month of the tax year - about March 15 for a calendar-year business, or within 2 months and 15 days of a new entity's start. Late relief may be available with reasonable cause.

Q: Does Pennsylvania recognize the federal S-corp election?

A federal S corporation is automatically a PA S corporation (can opt out).

Q: Can an LLC be an S corp?

Yes. An LLC that meets the eligibility rules can file Form 2553 to be taxed as an S corporation while remaining an LLC under state law. It then files an 1120-S return and runs payroll for the owner.

Q: How much does the S-corp election save?

The savings come from avoiding 15.3% self-employment tax on profit distributed above a reasonable salary. The benefit grows with profit but is offset by payroll and filing costs, so it usually helps only above a certain income level.

Q: Do I need an EIN before filing Form 2553?

Yes. The election requires the entity's EIN. Get the free EIN from the IRS first, then file Form 2553 by mail or fax with all owners' signed consent.

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 6, 2026 · Last updated Aug 6, 2026

You make an S-corp election in Pennsylvania by filing IRS Form 2553 - generally within 2 months and 15 days of the start of the tax year it should take effect. An S-corp election changes only federal tax treatment: profit beyond a reasonable salary is not subject to 15.3% self-employment tax. It does not change your entity; an LLC stays an LLC.

Quick Answer

Form: IRS Form 2553
Deadline: 2 months + 15 days after tax-year start (about March 15)
What it changes: Federal tax status, not the legal entity
Eligibility: <=100 eligible shareholders, one class of stock, domestic
Main benefit: Distributions above a reasonable salary avoid SE tax
Pennsylvania treatment: A federal S corporation is automatically a PA S corporation (can opt out)

What an S-Corp Election Is

"S corp" is not a type of business entity - it is a federal tax election. An LLC or a corporation elects to be taxed under Subchapter S of the Internal Revenue Code by filing Form 2553. The entity itself is unchanged: an LLC that makes the election is still an LLC under Pennsylvania law, with the same formation documents and registered agent. See S-corp vs LLC for the entity-versus-election distinction.

The reason owners elect S status is tax. In a default LLC, all net profit is subject to 15.3% self-employment tax. As an S corp, the owner-employee takes a reasonable salary subject to payroll tax, and remaining profit is distributed to the owner without self-employment or payroll tax. Above a certain profit level, that split can meaningfully reduce total Social Security and Medicare tax. The election is made with the IRS, not with the Pennsylvania Secretary of State.

S-Corp Eligibility Requirements

Not every business can be an S corp. Under 26 U.S.C. § 1361, the entity must:

Be a domestic corporation or LLC;
Have no more than 100 shareholders (members);
Have only eligible shareholders - generally U.S. individuals, certain trusts, and estates; not partnerships, corporations, or non-resident aliens;
Have only one class of stock (one class of ownership interest); and
Not be an ineligible type of business (such as certain financial institutions or insurers).

Most small single-member and multi-member LLCs in Pennsylvania qualify. A single-member LLC that elects S status is treated as a corporation for tax purposes and files its own return, even though it remains a one-owner LLC under state law. If any shareholder or structural requirement is not met, the election is invalid.

The Form 2553 Deadline

Timing is the trap most owners hit. To take effect for a given tax year, Form 2553 must generally be filed by the 15th day of the third month of that year - about March 15 for a calendar-year business - which the IRS describes as within 2 months and 15 days of the start of the tax year. A new entity counts the deadline from when it starts business.

Miss it and the election normally takes effect the following year - but the IRS provides late-election relief under Revenue Procedure 2013-30 if you had reasonable cause and file within the allowed window, attaching the explanation to a late Form 2553. Because the deadline is strict, many owners file the election shortly after forming the LLC or at the start of the year they want it to apply. See the Form 2553 instructions for the exact dates and relief rules.

How to File Form 2553

To elect S status, complete Form 2553 and have all shareholders (members) sign their consent. You provide the entity's name, EIN, incorporation/organization date, the tax year, and the effective date of the election. You need an EIN first. File by mail or fax to the IRS service center for your state; there is no online filing for Form 2553.

An LLC has two paths. It can file Form 2553 directly, which the IRS treats as both an election to be taxed as a corporation and an S election, so a separate Form 8832 is usually not required. After the election, the business files an 1120-S return each year and issues K-1s to owners. Payroll must be set up for the owner-employee's salary. See business tax basics for the filing calendar.

Reasonable Salary and Payroll

The S-corp tax benefit depends on paying the owner a reasonable salary. The IRS requires an owner who works in the business to take wages that reflect the value of the services performed before taking tax-favored distributions. Paying an unreasonably low salary to avoid payroll tax is a well-known audit target, and the IRS can reclassify distributions as wages plus penalties. See IRS guidance on shareholder compensation.

Running payroll means withholding and depositing income and FICA taxes, filing employment tax returns, and issuing a W-2. Those added compliance costs - payroll service, a separate 1120-S return, and bookkeeping - are why the S election generally pays off only above a certain profit level, often cited around the point where SE-tax savings exceed the extra costs. Below that, a plain LLC taxed as a disregarded entity is simpler.

Pennsylvania Recognition and State Tax

Pennsylvania automatically treats a federal S corporation as a Pennsylvania S corporation. The state eliminated the old separate state S election, so once the IRS accepts your Form 2553 the business is a PA S corporation by default. A corporation that does not want PA S treatment must affirmatively opt out by filing the department's election-not-to-be-taxed-as-a-PA-S-corporation form (REV-976).

Pennsylvania levies a flat personal income tax of 3.07%, and S-corporation income passes through to the owners' PA-40 individual returns, where it is taxed at that flat rate. The PA S corporation files a PA-20S/PA-65 information return with the Pennsylvania Department of Revenue. The federal self-employment-tax savings from the S election are separate from PA income tax, which still applies to the pass-through profit. See Pennsylvania LLC tax filing.

Is an S-Corp Election Worth It?

The election makes sense when the self-employment-tax savings on distributions clearly exceed the added payroll and filing costs. For a profitable Pennsylvania LLC where the owner can pay a defensible salary and still distribute meaningful profit, the savings can be substantial year after year. For a business with thin or irregular profit, the extra complexity often is not worth it.

Because the decision turns on your specific numbers - profit, a reasonable salary for your role, and state tax - it is worth modeling before you file. You can always start as a standard LLC and elect S status later once profit justifies it, subject to the Form 2553 deadline. Compare the structures at S-corp vs LLC, and review self-employment tax in Pennsylvania to see what you would be saving against.

Frequently Asked Questions

What is the deadline to file Form 2553 in Pennsylvania?