What Is IRS Form 2553?

The Milestone Team March 12, 2026
IRS Form 2553 Election by a Small Business Corporation tax blank lies on empty calendar page. Tax period concept.

Choosing the right tax structure can save your business thousands of dollars annually. IRS Form 2553, officially titled “Election by a Small Business Corporation,” allows qualifying corporations and LLCs to elect S corporation status for federal tax purposes. This form unlocks substantial self-employment tax savings by splitting income between salary and distributions.

Reach out to our Tax Prep Services Services For Small Business team for all your questions.

What Is IRS Form 2553?

IRS Form 2553 allows eligible corporations and LLCs to be treated as an S corporation under IRS section 1362 of the Internal Revenue Code. Filing this form requests that your business be taxed under Subchapter S rather than as a traditional C corporation or default LLC structure.

What Is Form 2553 Used For?

Form 2553 is used for making a formal election to change your business tax structure. Tax form 2553 tells the IRS you want your corporation or LLC taxed as an S corporation, providing pass-through taxation benefits. Business profits and losses pass through to shareholders’ personal tax returns, avoiding double taxation. When approved, this corporate tax election remains in effect for all future tax years unless revoked.

Who Needs to File IRS Form 2553?

To file Form 2553, your small business corporation must meet specific IRS eligibility requirements: be a domestic corporation or LLC, have no more than 100 shareholders, have only allowable shareholders (individuals, certain trusts, and estates), have only one class of stock, and not be an ineligible corporation type.

Can an LLC File Form 2553?

Yes, an LLC to S corp election is one of the most common uses of Form 2553. When an LLC files this election, it maintains its LLC legal structure while being federally taxed as an S corporation. Single-member and multi-member LLCs can both make this election, provided they meet eligibility requirements.

Why Would a Business File Form 2553?

Businesses file Form 2553 to reduce overall tax liability. Traditional C corporations face double taxation at the corporate and shareholder levels, while LLCs and sole proprietors are subject to self-employment tax on all business income. S corporation status reduces tax obligations while maintaining corporate protections.

What Are the Tax Benefits of S Corporation Status?

The most significant S corporation benefits include self-employment tax savings. Active owners must pay themselves a reasonable salary, subject to 15.3% payroll taxes, but additional profits distributed to shareholders avoid these employment taxes and are subject only to income tax. For businesses earning $80,000+ annually, S corp election can save $9,000-$15,000+ each year. S corporation status also provides pass-through taxation, potential QBI deduction eligibility, and flexibility in profit distribution strategies.

When Do You Need to File Form 2553?

Timing is critical. The IRS imposes a strict Form 2553 deadline of 75 days (two months and 15 days) from either incorporation or the beginning of the tax year when you want the election to be effective. For calendar-year businesses wanting S corp status effective January 1, 2026, the deadline is March 16, 2026. Missing this deadline means your election won’t take effect until the following tax year.

To learn more about Business Tax Deadlines 2026: A Guide For Llcs read our blog.

What Happens If You Miss the Form 2553 Deadline?

Missing the Form 2553 deadline means your election won’t take effect until the following tax year, which can be costly. You may qualify for late election relief if you demonstrate reasonable cause and file within three years. Otherwise, file for the next tax year, keeping a careful track of the deadlines. During the interim, your business is taxed under its default classification.

How Do You Complete and Submit Form 2553?

Completing Form 2553 requires complete information from all shareholders. Gather your business’s EIN, incorporation date, and fiscal year information. Identify all shareholders and obtain their signatures and consent. Each shareholder must provide their name, address, Social Security number, shares owned, and acquisition dates. Submit Form 2553 by mail to the appropriate IRS service center based on your location using the address in the current Form 2553 instructions. Keep copies of everything, including proof of mailing.

What Information Do You Need to File Form 2553?

Before starting, compile your business’s legal name and EIN, business address and incorporation date, fiscal year, complete shareholder list with contact information and Social Security numbers, shares owned by each shareholder and acquisition dates, and shareholder consent signatures from every shareholder. The shareholder consent requirement is absolute: all shareholders must sign. Without proper signatures, the IRS rejects the election.

What Are Common Form 2553 Filing Mistakes to Avoid?

The most frequent mistake is missing the 75-day deadline. Mark your calendar and aim to file two weeks early.

Incomplete shareholder consent is another major problem. Every single shareholder must sign the form. Missing even one signature results in rejection. Similarly, incorrect information such as mismatched dates, wrong EIN, or incomplete shareholder details delays processing.

Some businesses elect the wrong tax year or fail to justify a fiscal year election. Unless you have a valid business purpose, the IRS requires S corporations to use a calendar tax year.

Don’t assume your election was approved. If you don’t hear back within 60 days, contact the IRS to check filing status. Once approved, ensure your business operates as an S corporation by paying appropriate wages, filing Form 1120-S, and meeting all compliance requirements.

How Can Milestone Help With Your S Corporation Election and Tax Filing?

At Milestone, we understand your monthly accounting and back-office operations, positioning us to guide you through strategic tax decisions like S corporation election. Our integrated team of tax professionals, accountants, and CFO advisors determines if S corp status makes sense for your business and ensures all filing requirements are met accurately and on time.

We handle the technical details of Form 2553 filing while you focus on growing your business. Beyond initial election, we provide ongoing support with payroll setup for reasonable compensation, quarterly tax planning, annual Form 1120-S preparation, and compliance monitoring.

Transform your back office from a compliance burden into a strategic advantage. Contact Milestone today to discuss your S corporation election and discover how our comprehensive accounting, tax, and CFO services can support your business.

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