Deducting New LLC Startup Costs vs Personal Tax Write-offs
I just formed a new LLC and I'm trying to figure out the tax implications. My total startup costs are looking to be approximately $820k with around $305k coming directly out of my pocket. I'm wondering how much of this I can actually deduct from my personal tax return? I know eventually my CPA will sort through all this, but I'd like to have a general idea now for financial planning. Any insights would be really helpful since this is my first business venture and I'm not sure how the write-offs work between business and personal taxes.
21 comments


ApolloJackson
For a newly formed LLC, you can generally deduct up to $5,000 of startup costs in the first year, with the remaining costs amortized over 15 years. This applies to costs incurred before your business actually begins operations. But how these deductions flow to your personal return depends on how your LLC is structured for tax purposes. If your LLC is a single-member LLC (disregarded entity), the deductions will flow directly to your personal tax return via Schedule C. If it's a partnership or S-corporation, you'll receive a K-1 showing your share of the business losses which then gets reported on your personal return. For a C-corporation, the deductions stay at the corporate level. Keep in mind that the $5,000 first-year deduction starts phasing out when your total startup costs exceed $50,000, and it's completely eliminated when they reach $55,000.
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Isabella Russo
•Does the $5k limit apply to all startup costs combined or can you have separate $5k deductions for different categories like organizational costs vs startup costs? And what exactly counts as a "startup cost" anyway? Like if I bought equipment, is that different?
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ApolloJackson
•Great question. The $5,000 immediate deduction is actually available for two separate categories: business startup costs and organizational costs, so you could potentially deduct up to $10,000 in your first year ($5,000 for each category). Startup costs include market research, advertising, employee training, travel costs for securing suppliers or customers, and similar expenses incurred before your business begins operating. Organizational costs include legal fees for forming the LLC, state filing fees, and other costs directly related to creating the business entity. Equipment purchases are treated differently - they're capitalized assets subject to depreciation rules, and you may be eligible for Section 179 expensing or bonus depreciation, which could allow you to deduct the full cost in year one, subject to certain limitations. This is separate from the startup cost rules.
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Rajiv Kumar
After trying to figure this out for my own business startup last year, I found an amazing tool that helped clarify everything - https://taxr.ai actually analyzes all your startup documents and expenses and tells you exactly what can be deducted where. It saved me from making some costly mistakes with my LLC formation. The system showed me that some expenses I thought were startup costs were actually organizational costs, which meant I could take advantage of both $5k deductions like the first commenter mentioned.
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Aria Washington
•Does taxr.ai work for all types of business entities? I have an S-Corp and wondering if it would help with my situation too with identifying which expenses go where.
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Liam O'Reilly
•I'm a bit skeptical... how does it handle state-specific rules? My business operates in California and I've found that sometimes the state rules are even more complicated than federal.
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Rajiv Kumar
•Yes, it works for any business entity - sole props, LLCs, S-Corps, partnerships, and C-Corps. It actually has specific templates for each entity type that help you categorize expenses properly based on how your business is structured for tax purposes. It definitely handles state-specific rules. I'm actually in California too, and it flagged several expenses that had different treatment under California law compared to federal. It breaks everything down by jurisdiction and even shows you the relevant tax code sections so you can verify everything yourself if you want to.
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Liam O'Reilly
Just wanted to update after trying taxr.ai for my business. I was genuinely surprised at how detailed it was! Uploaded my formation docs and expense spreadsheet and it correctly identified that about 30% of what I thought were startup costs were actually depreciable assets or organizational expenses. This actually increased my first-year deductions significantly. It even flagged some home office expenses I didn't realize I could take. Definitely changed my tax planning strategy for this first year of business.
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Chloe Delgado
Since you mentioned planning purposes, I'd suggest calling the IRS directly to verify any advice you receive online. I spent weeks trying to get clarification on a similar business deduction issue. After dozens of failed attempts calling the regular IRS line, I found https://claimyr.com which got me through to an actual IRS agent in under 20 minutes. You can see how it works here: https://youtu.be/_kiP6q8DX5c. The agent walked me through exactly how to handle my LLC startup costs properly across my business and personal taxes, which saved me from making a huge mistake on my return.
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Ava Harris
•How does this service actually work? I've literally spent hours on hold with the IRS and always end up hanging up because I can't wait anymore. Is it legit or just another scam?
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Jacob Lee
•Yeah right. Nobody gets through to the IRS that quickly. I'll believe it when I see it. I've tried calling at every hour of the day and it's always the same "due to high call volume" message before being disconnected.
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Chloe Delgado
•It uses a system that monitors IRS phone lines and calls repeatedly until it gets through, then it calls you and connects you directly to the IRS agent. It's basically doing the wait time for you. Once you're connected, it's just a normal call with an IRS representative who can answer your specific questions. It's definitely legitimate. The IRS even acknowledges third-party services like this exist because their call centers are so overwhelmed. I was skeptical too, but I had a complicated question about business expense categorization that I couldn't get answered anywhere else, so I decided to try it as a last resort.
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Jacob Lee
I have to eat my words and apologize for being so skeptical. After trying Claimyr yesterday, I got through to an IRS agent in about 15 minutes. I've been trying for WEEKS to get answers about my business startup costs. The agent confirmed that my $83k in startup costs would need to be amortized since it's over the $50k threshold, except for the $5k I can take this year. She also explained exactly how it would flow through to my personal taxes since I'm a single-member LLC. Saved me from making a $12k mistake on my estimated tax payments. Honestly shocked this actually worked.
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Emily Thompson
With $820k in startup costs, you also need to consider Section 179 deduction and bonus depreciation for any tangible property. For 2025, you can potentially deduct up to $1,160,000 under Section 179 (subject to phase-out when purchases exceed $2,890,000). These deductions can flow through to your personal return depending on your LLC's tax status.
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Sophie Hernandez
•So would it be better to classify as much as possible as equipment/property to take advantage of Section 179 rather than having it count as startup costs with that small $5k deduction? I'm confused about which would be more advantageous.
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Emily Thompson
•Absolutely, if you have legitimate equipment/property purchases as part of your startup, it's generally more advantageous to categorize them properly as depreciable assets rather than as startup costs. This allows you to potentially deduct the full cost in year one under Section 179 or bonus depreciation. For example, if $400k of your $820k is actually for equipment, vehicles, computers, furniture, etc., you could potentially deduct that entire $400k in year one rather than having it subject to the 15-year amortization schedule that applies to startup costs. Just make sure you're properly categorizing expenses - the IRS is very specific about what qualifies as a startup cost versus a depreciable asset.
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Daniela Rossi
Out of curiosity, what type of business did you start that requires $820k in startup costs? That's a pretty significant investment. I'm wondering what industry you're in.
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Ryan Kim
•Not OP but my guess would be either a restaurant, manufacturing, or something with heavy equipment/real estate component. My restaurant startup was around $600k and that was considered on the lower end for a full-service place.
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Grace Patel
•I'm opening a specialty manufacturing facility for custom automotive parts. A big chunk of the startup cost is specialized CNC equipment and other machinery. Thanks for all the advice everyone! I've been taking notes on the Section 179 option vs startup cost amortization. Sounds like I should definitely separate out the equipment purchases from the other startup expenses for better tax treatment.
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Charlotte Jones
That's exciting, Grace! Custom automotive parts manufacturing is a great niche. Given your equipment-heavy startup, you'll definitely want to maximize Section 179 and bonus depreciation on those CNC machines and other manufacturing equipment. One thing to consider is the timing of when you place the equipment "in service" - you can only claim the deduction in the tax year the equipment is actually put to use in your business, not just when you purchase it. So if some equipment arrives late in the year but won't be operational until next year, the deduction timing might shift. Also, don't forget about state-level incentives. Many states offer additional tax credits or accelerated depreciation for manufacturing equipment, especially if you're creating jobs. California has some programs, and other manufacturing-friendly states might have even better incentives if you're considering your location. With $305k coming out of your pocket, make sure you're tracking every dollar carefully. Even small expenses like permits, insurance setup, utility deposits, and professional fees can add up and be properly categorized for maximum tax benefit.
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Miguel Ortiz
•This is really valuable advice about the "in service" timing! I hadn't thought about that distinction between purchase date and when equipment is actually operational. Since I'm planning to have some equipment delivered in Q4 but may not have it fully set up and running until early next year, this could significantly impact my tax planning. @Grace Patel - you might want to coordinate the timing of your equipment installations with your CPA to optimize the tax benefits across tax years. And Charlotte s'point about state incentives is spot on - I d'definitely research manufacturing incentives in your state. Some states even offer property tax abatements for new manufacturing facilities. One more thing to consider: if you re'doing any facility improvements or build-outs for the manufacturing space, those might qualify for different depreciation schedules than the equipment itself.
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