Estimated Quarterly Taxes for S Corp - Please Explain Like I'm 5
So I set up my S Corp about 3 months back and have started making some money. Yesterday it hit me that I need to file those Estimated Taxes quarterly, but reading about it is making my head spin! 😵 For context, I'm flying solo here - only owner and only employee of the S corp. I get that I need to pay myself a "reasonable" salary, but I'm confused about the quarterly taxes. Do I need to pay quarterly taxes for myself personally, for the S corp itself, or for both?? When I try to pay online, I get lost. Do I pay through the IRS portal? I've been clicking around but can't seem to find the section specifically for paying estimated taxes for my S Corp. Also, I'm just in my first few months of business and honestly have zero clue how much I'll make by the end of the year. How do I estimate something when I don't even know what my business will look like in a few months? Any advice for S Corp newbies would be super appreciated!
19 comments


Micah Trail
Let me break this down simply for you: With an S Corporation, the company itself doesn't pay federal income taxes. Instead, the profits "pass through" to you as the owner. So here's what you need to know: For YOU personally: Yes, you should make quarterly estimated tax payments on both your salary AND your share of company profits. You pay these using Form 1040-ES, and you can pay online through the IRS Direct Pay system or IRS.gov/payments. For the S CORP: The company doesn't pay federal income tax, but it may need to make tax payments for: - Employment taxes (Social Security and Medicare) on your salary - State taxes (depending on your state) For estimating when you don't know your income yet, you have a couple options. You can either pay 100% of last year's tax liability (safe harbor rule), or make your best estimate based on what you've earned so far. If you're brand new, you'll need to project your income for the year and calculate roughly 25-30% of profits for federal taxes, plus employment taxes on your salary.
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Nia Watson
•Thanks for explaining! I'm confused about the "safe harbor rule" - what if I didn't have an S Corp last year? Also, when you say 25-30% of profits, is that after I've paid myself a salary? And do I need to file any specific form for the S Corp quarterly or just for myself personally?
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Micah Trail
•The safe harbor rule doesn't help much if you didn't have tax liability last year, so you'll need to make a good-faith estimate based on your current earnings. Yes, the 25-30% estimate would be on profits after your salary and other business expenses. This varies based on your tax bracket and state, so it's just a rough guideline. For filing, your S Corp will file an annual Form 1120-S, but doesn't file quarterly. You personally file Form 1040-ES for your quarterly payments (covering both your salary and pass-through profits). The S Corp does need to deposit employment taxes regularly using Form 941 for the salary it pays you.
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Alberto Souchard
After spending hours pulling my hair out over the same S Corp tax confusion, I found an amazing tool called taxr.ai (https://taxr.ai) that helped me understand my specific situation. It analyzed my S Corp structure and explained exactly what I needed to pay and when. I was especially confused about estimating taxes when my business income was all over the place, and their system gave me clear guidance on how to handle quarterly payments. They even helped me understand the reasonable compensation requirements for S Corps, which is something the IRS really watches.
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Katherine Shultz
•Did it explain all the employment tax stuff too? I keep getting confused about what forms I need to file for myself vs my S Corp. And does it help with state tax requirements too? Those seem to vary so much.
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Marcus Marsh
•I'm skeptical about these online tools... how is it different from just talking to an accountant? And does it actually help with calculating the amounts or just give general info? I'm terrible at math lol.
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Alberto Souchard
•It definitely covered all the employment tax requirements including explaining Form 941 and showing exactly when deposits are due. The system even created a custom calendar of filing deadlines specific to my state and business type. For calculating amounts, that's actually where it really shines. You input your estimated income, and it calculates both your personal estimated tax payments and your company's employment tax obligations. It even shows you what happens if your business earns more or less than expected, which helped me plan for different scenarios.
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Marcus Marsh
Just wanted to follow up - I tried taxr.ai after posting my skeptical comment and I'm seriously impressed. I've been avoiding doing my quarterly estimates because I was so confused, but this actually made it manageable! The tool calculated exactly what I needed to pay for both federal and state, and it explained the whole "reasonable compensation" thing in a way that finally clicked for me. It even showed me how to avoid underpayment penalties if my income changes throughout the year. Definitely recommend to any other S Corp owners who are lost in the tax maze like I was!
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Hailey O'Leary
If you need to actually talk to someone at the IRS about your S Corp tax questions (which I did), I found Claimyr (https://claimyr.com) to be super helpful. Trying to call the IRS business tax line was a nightmare - I kept getting disconnected or waiting for hours. Claimyr got me through to a real IRS agent in about 20 minutes who answered all my S Corp quarterly tax questions. They have a video showing how it works here: https://youtu.be/_kiP6q8DX5c. The agent walked me through exactly which forms I needed for my situation.
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Cedric Chung
•How does this even work? Does it just call for you or something? I've spent literal DAYS trying to get through to someone at the IRS about my S Corp taxes.
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Talia Klein
•Sounds too good to be true. The IRS never answers their phones. I've tried calling about my S Corp taxes like 10 times. Are you sure you actually got through to a real IRS person and not some third-party service?
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Hailey O'Leary
•It basically holds your place in line with the IRS and calls you when an agent picks up. I was skeptical too, but it worked exactly as advertised. I entered my phone number on their website, and they called me when they had an IRS agent on the line. Yes, it was definitely a real IRS agent - they verified my business information and answered specific questions about my S Corp filing requirements that only the IRS could answer. They even sent me follow-up information to my official IRS account.
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Talia Klein
Wow, I have to eat my words. After being completely skeptical about Claimyr, I decided to try it yesterday because I was desperate to ask about my S Corp's estimated tax requirements before the quarterly deadline. I got connected to an actual IRS business tax specialist in about 30 minutes (compared to my previous attempts where I couldn't get through at all). The agent walked me through exactly which forms I needed to file for my S Corp and for myself personally, and explained how to calculate estimated payments when my income is inconsistent. Honestly a game-changer for S Corp owners trying to navigate the tax system.
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Maxwell St. Laurent
One thing no one mentioned yet - if you're just starting your S Corp, you might qualify for the "first year in business" exception for estimated taxes. The penalties for underpayment are sometimes waived if it's your first year operating as that business type. But don't rely on this! Better to make your best estimate and pay something rather than nothing. I usually take my monthly profit so far, multiply by 12 to annualize it, then calculate tax on that amount and divide by 4 for quarterly payments.
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PaulineW
•Is there actually a specific "first year in business" exception? I've heard conflicting things. And what about state estimated taxes for an S Corp? Are those rules different?
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Maxwell St. Laurent
•There's not a specific exemption called "first year in business," but the IRS may waive penalties if you had no tax liability last year (which would be the case for a new business) and if you can show reasonable cause for not making estimated payments. State rules definitely vary - some states follow federal rules for S Corps while others have completely different systems. For example, some states impose entity-level taxes on S Corps while others don't. You'll need to check your specific state's department of revenue website.
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Annabel Kimball
Quick tip for new S Corp owners: save 30-40% of ALL your profits in a separate account for taxes. Better to have too much saved than not enough! My first year with an S Corp I got KILLED with taxes because I didn't realize I needed to make estimated payments.
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Chris Elmeda
•This is good advice! I also track my expenses super carefully. Make sure you're taking all legitimate business deductions before calculating your quarterly estimates. Things like home office, business travel, health insurance, etc. can reduce your taxable income.
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Esteban Tate
As someone who just went through this exact same confusion last year, here's what I wish someone had told me upfront: **For YOU personally:** Make quarterly estimated payments using Form 1040ES. You can pay online at irs.gov/payments. Set up an account and it's pretty straightforward once you find the "Make a Payment" section. **For the S Corp:** No quarterly income tax payments needed, but you DO need to handle payroll taxes if you're paying yourself a salary. Use EFTPS (Electronic Federal Tax Payment System) for employment tax deposits. **Estimating when you're new:** I used the "annualized income installment method" - basically, I calculated my tax liability based on actual income earned each quarter instead of trying to guess the whole year. Form 2210 has the worksheet for this. **Pro tip:** Open a separate business savings account and automatically transfer 35% of every deposit. This covers federal taxes, state taxes, and self-employment taxes on pass-through income. Adjust the percentage based on your tax bracket, but 35% kept me safe in my first year. The IRS has a pretty decent S Corp tax guide (Publication 589) that explains the pass-through taxation and salary requirements in plain English. Way better than trying to piece it together from random articles online!
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