Limited Liability Company
Form 1120-S
Arizona
Is Form 1120-S required for a single-member LLC electing to be taxed as an S corporation?
I recently formed a single-member LLC and have elected to be taxed as an S corporation. I understand that Form 1120-S is generally used by S corporations to report their income, deductions, and other tax information. However, since I am the sole owner of the LLC and it is treated as a disregarded entity for federal tax purposes, I am unsure if I need to file Form 1120-S or if I can simply report the income and expenses on my personal tax return using Schedule C. Can you clarify the filing requirements in this scenario?
Answers from 1 Lawyer
Answer
Limited Liability Company
Arizona
Randy M.
ContractsCounsel verified
If your single-member LLC’s S corporation election (Form 2553) is accepted and effective for the tax year, you don’t use Schedule C for that business. You file Form 1120-S for the entity, issue yourself a Schedule K-1 (Form 1120-S), and report the K-1 items on your Form 1040 (typically on Schedule E). If the election isn’t effective for the year in question (for example, it was filed late and not granted relief), you remain a disregarded entity for that year and would report on Schedule C instead. What this means for your filings this year File Form 1120-S by the 15th day of the third month after the end of your tax year (March 15 for a calendar-year S corp). Provide yourself a shareholder K-1. On your personal return, include K-1 income, deductions, and credits; don’t duplicate the same activity on Schedule C. Keep the IRS approval of your S election with your permanent records and verify the effective date before you prepare the return. Where Schedule C still applies (edge cases) If your 2553 wasn’t accepted or the effective date falls after the start of the year, the pre-election period is still disregarded-entity activity. In a mid-year effective-date situation, you’ll generally have two “periods”: a Schedule C period before the S election takes effect and an 1120-S period after. If your 2553 was late, consider Rev. Proc. 2013-30 relief so you can treat the election as timely and avoid an unintended Schedule C year. Payroll and “reasonable compensation” Once you’re taxed as an S corporation, you’re both owner and employee if you perform services. Pay yourself reasonable compensation through payroll and issue a W-2. That means registering for payroll, withholding and depositing employment taxes, filing Form 941 quarterly and Form 940 annually (where applicable), and following Publication 15 for rates and deposit rules. Non-wage distributions can be taken in addition to wages, but they come after paying reasonable compensation. Practical example Assume your 2553 was accepted effective January 1, 2025. For 2025 you run payroll to pay yourself reasonable wages, file 1120-S by March 17, 2026 (March 15, 2026 is a Sunday), and issue yourself a K-1. On your 2025 Form 1040 you include W-2 wages from your S corp and the Schedule E entry from your K-1. You do not file a Schedule C for that LLC. If the IRS letter shows an effective date of July 1, 2025, you’d generally report Jan–Jun activity on Schedule C and Jul–Dec on 1120-S unless you secure late-election relief aligning the election to January 1. State and local considerations Many states require separate S-corporation or franchise filings, estimated payments, or annual fees even if there’s no entity-level income tax. Check your state’s S-corp conformity, filing thresholds, and due dates. For payroll, also register with your state workforce and revenue agencies and follow state deposit and return schedules. Common pitfalls to avoid Don’t file 1120-S unless your S election is actually in effect; the IRS typically sends Notice CP261 confirming acceptance. Don’t skip payroll or set wages unreasonably low relative to your role. Don’t double-report the same activity on both Schedule C and your K-1. Finally, don’t overlook shareholder basis tracking; it affects loss deductibility and the taxability of distributions. Records and elections to keep on file Retain your filed Form 2553 and acceptance notice, EIN assignment letter, payroll registrations, quarterly and annual payroll returns, shareholder basis schedules, minutes/consents approving compensation, and any correspondence related to late-election relief. The Final Analysis Once your single-member LLC elects S corporation status, Form 1120-S becomes mandatory and Schedule C is no longer an option. Stay on top of payroll, compensation, and recordkeeping, and you’ll be in compliance. If you’re unsure about the details, a CPA experienced with small S corps can keep you on track and help you capture the full tax benefits.
People Also Asked
Corporate
Form 1120-S
California
Can a corporation elect to be treated as an S corporation after filing Form 1120-S?
I am the owner of a small corporation that has been filing taxes using Form 1120-S for several years, and I recently learned about the potential tax benefits of electing S corporation status. I am interested in exploring this option and would like to know if it is possible to retroactively elect S corporation status for previous tax years, or if it can only be done prospectively.
Dolan W.
Hello! Tha answer is yes. What you need to do is seek a late election using Form 2553. Your late S corp election must be filed within three years and 75 days after its proposed effective date. This means that you can do this retroactively. You can even start here with this video to figure out how - https://www.youtube.com/watch?v=xA81sVVtgp8 Best of luck!
Read 1 attorney answer>Accounting
Form 1120-S
California
Can you explain the requirements and implications of filing Form 1120-S for a small business?
I am a small business owner and I have recently formed an S corporation for my business. I understand that as an S corporation, I am required to file Form 1120-S with the IRS. However, I am unclear about the specific requirements and implications of this form. I would like to know what information needs to be reported on Form 1120-S, what the deadlines for filing are, and any potential consequences or benefits associated with filing this form. Additionally, I would appreciate any guidance on how to properly complete and submit Form 1120-S to ensure compliance with IRS regulations.
Dolan W.
Hello! My name is Dolan and thanks for posting this question. Let me break this down in parts for you: 1. Filing Form 1120-S for your S corporation is an essential part of staying in compliance with IRS regulations. This form is specifically designed for S corporations to report their income, deductions, and other financial details to the IRS. 2. When it comes to what you need to report, Form 1120-S will ask for details like the company's income, expenses, cost of goods sold, deductions, and credits. You'll also report the allocation of profits and losses to each shareholder based on their ownership percentage, which goes on a Schedule K-1. Each shareholder then uses the Schedule K-1 to report their share of the company's income or loss on their individual tax returns. 3. The deadline for filing Form 1120-S is usually March 15th of the year following the tax year you're reporting. 4. The benefits of filing Form 1120-S are clear when it comes to avoiding double taxation. With an S corp, you only pay taxes on the personal level, which can save you a lot compared to a C corporation, where income is taxed at both the corporate and personal levels. It also provides a clear record of the business's income and deductions, which can help you if you’re ever audited. 5. As for completing the form, make sure your books are in order, and gather all the financial details for the year. You’ll need things like income statements, expense records, and information about each shareholder's ownership percentage. If you have a bookkeeper, great. If not, go to a company like Wave Accounting. 6. The key to getting this right is accuracy. The IRS takes mistakes on Form 1120-S seriously, so double-check everything before submitting it. If you’re unsure about anything, getting professional advice upfront can save you a lot of trouble later. It sounds like a lot, but once you get the hang of it, filing Form 1120-S can be pretty straightforward. Thanks so much!
Read 1 attorney answer>Limited Liability Company
LLC
Washington
What are the steps and requirements for forming a Single Member LLC?
I am currently in the process of starting a small business and I am considering forming a Single Member LLC to protect my personal assets. I have done some research online, but I am still unsure about the specific steps and requirements involved in setting up this type of legal entity. I would greatly appreciate your guidance on the necessary paperwork, registration process, and any other important considerations I should be aware of in order to successfully form a Single Member LLC.
Randy M.
A Single Member LLC creates a legal wall between your personal finances and anything that happens in your business. Without it, you're fully responsible for business debts and lawsuits. That means if something goes wrong, your personal savings, home, or car could be on the line. But the LLC only protects you if it's set up correctly and you keep it compliant over time. Start by choosing a name for your business. It has to include "LLC" or "Limited Liability Company" and be different from any other business name already registered in Washington. You can check availability on the Secretary of State’s website. Not ready to file yet? You can reserve a name for 180 days for 30 dollars. Next, you need a registered agent. This is someone with a physical address in Washington who can receive legal notices. You can be your own agent, but your name and address will go on public record. If that’s not ideal, hire a registered agent service. They usually charge between 59 and 300 dollars a year and offer more privacy. Then file your Certificate of Formation with the Secretary of State. This makes your LLC official. Filing online costs 200 dollars and is processed in about two business days. Mailing it costs 180 dollars but takes longer. You’ll also need to file an Initial Report within 120 days. If you do it during the formation process, it’s free. If you file it separately later, it costs 10 dollars. Even though it’s not legally required in Washington, make sure to write an Operating Agreement. This document proves that your business is separate from you personally. It helps protect you legally and is often required to open a business bank account. Even if you’re the only owner, the agreement should explain how the business is managed, how profits are used, and what happens if you close it. You may also need to get an EIN, or Employer Identification Number, from the IRS. If you don’t have employees and don’t file special tax forms, it’s not legally required. But in reality, most banks, vendors, and licensing agencies will want you to have one. It’s free to apply directly through the IRS website. Don’t pay a third-party service for something you can get in a few minutes yourself. If your business will make more than 12,000 dollars a year, hire employees, or collect sales tax, you’ll need a Washington business license. Apply through the Department of Revenue. The basic license costs around 90 dollars, but depending on your city or industry, you may also need extra local licenses. After your LLC is set up, keep your business finances completely separate from your personal accounts. Open a business checking account and only use it for business expenses and income. If you mix personal and business money, a court can decide your LLC doesn’t count and make you personally liable. This is called “piercing the corporate veil,” and it defeats the whole purpose of forming an LLC. You also have to file an Annual Report every year by the end of the month in which your LLC was originally formed. It costs 60 dollars. If you miss the deadline, your LLC can be dissolved by the state, which cancels your liability protection. Washington doesn’t have a personal or corporate income tax, but you may owe Business and Occupation tax, or B&O tax, based on gross receipts. That means it’s calculated on your total income, not your profit. Most service-based businesses pay 1.5 percent, but this depends on your NAICS code. Some cities also charge a local B&O tax. If you sell goods, you’ll likely need to collect and remit sales tax too. Protecting your personal assets starts with forming your LLC, but it doesn’t end there. You have to treat the business like a separate legal entity every single day. Sign contracts under the LLC’s name. Keep detailed records. File your reports. Keep your money separate. And stick to what’s in your Operating Agreement. If your business starts to earn steady profits, talk to a tax professional about switching to S Corporation tax status. It can help you save money on self-employment taxes. Also consider using a registered agent service that sends reminders and handles filings for you. It’s one of the easiest ways to stay compliant and avoid losing your LLC status due to a missed deadline. If you’re handling the setup yourself, the process usually takes a week or two. There are services that can do it for you if you want extra help, but the key is doing it right from the start and following the rules that keep your protection in place. Here are some official resources that can help: Washington Secretary of State – LLC Filing: https://www.sos.wa.gov/limited-liability-company-llc-professional-llc-pllc-filing-resource-page Corporations and Charities Filing System: https://ccfs.sos.wa.gov/ Business Licensing Application: https://dor.wa.gov/open-business/apply-business-license Get an EIN from the IRS (Free): https://www.irs.gov/businesses/small-businesses-self-employed/get-an-employer-identification-number Washington State Business Guide: https://www.business.wa.gov/ Washington LLC Statutes: https://apps.leg.wa.gov/RCW/default.aspx?cite=25.15 DISCLAIMER: This guide is for general information only and doesn’t count as legal, tax, or financial advice. Always talk to a qualified professional before making decisions or filings.
Read 1 attorney answer>Limited Liability Company
LLC Operating Agreement
Florida
What happens to LLC when member dies?
I want to create an operating agreement that explains what happens with the business in case one of the members died. We have an LLC. We want to create an operating agreement that states how the business will keep working in case one of our members dies.
Forest H.
There are provisions to add to an operating agreement to address the death or incapacity of a member. Feel free to contact me if you would like to discuss how to move forward.
Read 2 attorney answers>Limited Liability Company
Operating Agreement
Florida
Forming LLC with multiple members
Hello, Looking to form LLC with 3 other individuals. What would be the best route to go?
Bruce B.
In florida you would want to have an operating agreement to specify the relationship between the members.
Read 1 attorney answer>