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

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

You become an S corporation by filing IRS Form 2553, generally within 2 months and 15 days of the start of the tax year. Montana recognizes the federal S election and taxes the business as a pass-through, filing the Montana Form PTE; Montana also has no general statewide sales tax.

What the S-Corp Election Does

An S corporation is a federal tax election, not a separate entity type. An eligible LLC or corporation files Form 2553 to be taxed under Subchapter S, so business income passes through to owners without a corporate-level tax. Owner-employees take a salary subject to payroll taxes, and remaining profit is distributed without self-employment tax.

A Montana LLC can elect S status while remaining an LLC legally. Owners typically consider this as profits rise above a reasonable salary. Weigh the choice in S-corporation vs LLC, and see the how to form an LLC hub and Montana formation for entity basics.

Who Qualifies

To elect S status the business must be a domestic corporation or eligible LLC with no more than 100 shareholders, only eligible shareholders (generally U.S. individuals and certain trusts/estates), a single class of stock, and it must not be an ineligible corporation. Every shareholder must consent to the election on Form 2553.

Nonresident aliens cannot be shareholders, which can affect owners relying on an ITIN. Confirm your ownership meets each requirement before filing; the IRS rejects elections from ineligible entities. Eligibility is a gating step, not a formality.

Form 2553 Timing

To take effect for a tax year, Form 2553 must generally be filed within 2 months and 15 days after the start of that year (about March 15 for a calendar-year filer) or during the prior year. File late and the election usually applies to the next year instead.

The IRS grants late-election relief under Revenue Procedure 2013-30 when you had reasonable cause and meet the conditions, allowing a late 2553 with an explanation attached. File on time whenever possible; relief is discretionary. Review the Instructions for Form 2553 for the exact deadlines.

Montana's Treatment of S Corps

Montana follows the federal S election — there is no separate Montana S-corp election to file. Once the IRS accepts Form 2553, the entity is an S corporation for Montana income tax. The business files the Montana Pass-Through Entity return (Form PTE) with the Department of Revenue, reporting income and each owner's share, which then flows to owners' Montana returns.

Montana may require withholding or composite reporting for nonresident owners. Notably, Montana has no general statewide sales tax, so an S-corp's Montana obligations center on income tax and payroll rather than sales tax collection. See Montana LLC tax filing for the return details.

Reasonable Compensation

The defining S-corp requirement is paying owner-employees a reasonable salary for services before taking distributions. The IRS challenges S corps that minimize wages to dodge payroll taxes while paying large distributions. Reasonable compensation reflects the owner's role, skills, hours, and comparable market pay.

Paying a salary means registering for federal and Montana employer withholding and unemployment accounts and filing employment tax returns. These costs are why the S election generally makes sense only once profit meaningfully exceeds a reasonable wage. See IRS guidance on paying yourself and the business tax overview.

Weighing the Costs and Benefits

S status can cut self-employment tax because only the salary is subject to Social Security and Medicare, while distributions are not. Against that, weigh payroll processing, the federal Form 1120-S, the Montana PTE return, and the need for a defensible salary. The savings usually justify the election only after net profit consistently exceeds a reasonable salary by a solid margin.

Model the numbers or consult a CPA before electing, and verify eligibility. If it is not yet worth it, a default LLC keeps compliance simple. Compare options in S-corporation vs LLC and see Montana self-employment tax.

Filing Mechanics and Payroll Setup

File Form 2553 with the correct IRS service center and keep the acceptance letter (CP261) with your records. Confirm the election was accepted before you start filing as an S corporation; filing 1120-S returns without a confirmed election creates problems that are tedious to unwind. If confirmation does not arrive, follow up with the IRS.

Establish payroll before taking distributions. An S corporation must pay owner-employees through formal payroll, which means registering for federal and Montana employer withholding and unemployment accounts, issuing W-2s, and filing employment tax returns. A payroll provider can keep deposits and filings accurate and on time.

Document the reasonable salary. Record the owner's duties, hours, and comparable pay so the figure is defensible. Because Montana has no sales tax, your state compliance centers on income tax and payroll, which makes a clean, well-documented salary and withholding setup especially central to running the S corporation correctly.

Coordinate the Montana return. The S corporation files the Montana Pass-Through Entity return (Form PTE), and income passes through to owners' Montana returns; nonresident owners may require withholding or a composite filing. Align the entity return, the K-1s, and each owner's personal return. See Montana LLC tax filing and the business tax overview.

Reassess the election over time. S status can be revoked and can terminate if eligibility lapses, so confirm each year that it still saves enough to justify the payroll and filing costs. If your profit no longer comfortably exceeds a reasonable salary, a default LLC may again be simpler. Compare in S-corporation vs LLC.

Verify eligibility before filing to avoid a defective election. Check the shareholder count and types, the single-class-of-stock rule, and that no owner is a nonresident alien. If trusts or other entities hold interests, confirm each qualifies, because a single ineligible owner can invalidate the election and force a messy correction.

Time the election to your tax year. The 2-months-15-days window sets when S treatment begins, and launching payroll mid-year complicates the reasonable-salary math. Aligning the election with the start of a tax year keeps salary, distributions, and the Montana pass-through filing on a clean twelve-month cycle.

Weigh Montana's specifics. With no general sales tax, your added state work centers on the pass-through return and any nonresident-owner withholding or composite filing, plus payroll accounts. Confirm the combined federal and Montana numbers show the payroll-tax savings clearly exceeding the compliance cost before you commit. See Montana LLC tax filing.

Maintain the election and revisit it annually. File 1120-S and the Montana PTE return on time, issue accurate K-1s, and reassess whether S status still fits as profit and payroll evolve. Since the election can be revoked or terminated, a yearly review with your CPA prevents both noncompliance and paying for a structure you have outgrown.

Frequently Asked Questions

How do I make an S-corp election in Montana?

File IRS Form 2553 for the federal S election. Montana recognizes it automatically, so there is no separate state election; the S-corp then files the Montana Pass-Through Entity return (Form PTE).

What is the Form 2553 deadline?

Generally within 2 months and 15 days after the start of the tax year the election takes effect, or any time in the prior year. Late-election relief is available with reasonable cause.

Does Montana have a separate S-corp election?

No. Montana follows the federal S election. Once the IRS accepts Form 2553, the entity is an S corporation for Montana income tax and files Form PTE.

Does Montana have a sales tax for S corps?

Montana has no general statewide sales tax, so an S-corp's state obligations focus on income tax and payroll rather than collecting sales tax. Some local resort areas levy limited taxes.

Do Montana S-corp owners need to take a salary?

Yes. Owner-employees must receive reasonable compensation subject to payroll taxes before taking distributions. Underpaying wages to reduce taxes is a common audit trigger.

Related

• S-corp vs LLC
• How to form an LLC in Montana
• Montana LLC tax filing
• Montana self-employment tax
• How to get an EIN
• Business tax overview

Sources

1. IRS — About Form 2553 (Election by a Small Business Corporation).
2. IRS — Instructions for Form 2553 (2 months 15 days election deadline; late relief).
3. IRS — S Corporations (federal S-corporation rules).
4. IRS — Paying Yourself (S-corp reasonable compensation).
5. IRS — Get an Employer Identification Number (EIN is free; issued by the IRS).
6. Cornell LII — 26 U.S.C. § 1361 (S corporation defined; eligibility).
7. Cornell LII — 26 U.S.C. § 1362 (election; when effective; revocation).
8. Montana Dept. of Revenue — Pass-Through Entity Taxes (Form PTE; follows federal S election).
9. Montana Dept. of Revenue — Taxes (no general statewide sales tax).
10. Montana Dept. of Revenue — Tax Forms (Montana PTE return).
11. Montana Secretary of State — Business Services (entity formation).
12. IRS — Business Structures (entity types overview).
13. IRS — Limited Liability Company (LLC) (federal default classification).
14. IRS — About Form 8832 (entity classification election).

LegalGlass provides general information for educational purposes and is not a law firm or a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; verify current requirements with the IRS and the Montana Department of Revenue before acting.