Can I use my new business losses to offset short term stock trading gains this year?
So I've gotten pretty lucky with day trading this year and made quite a bit in short term gains (like $45,000). The problem is I know I'm going to get killed on taxes since these are all short term. I was thinking about starting a small consulting business in the same tax year and was wondering - can I use any losses from getting that business off the ground to offset these short term stock gains? Like if I spend $20k on equipment, software, marketing, etc. for the new business, and only make $5k in revenue this year, can I use that $15k loss to reduce my taxable stock gains from $45k down to $30k? Or does the IRS have rules against this kind of thing? I don't want to do anything sketchy but also don't want to pay more taxes than I have to.
21 comments


Sophie Hernandez
Yes, you can potentially use business losses to offset your short term capital gains, but there are some important details to understand. First, what you're describing would be handled on Schedule C as a sole proprietorship, assuming this is a legitimate business you're starting (not just a tax strategy). Business losses can offset various types of income, including capital gains. The business expenses you mentioned (equipment, software, marketing) would generally be deductible, though equipment may need to be depreciated over time rather than fully expensed in year one - unless you elect Section 179 expensing or bonus depreciation. The critical thing is that this must be an actual business with the primary motive of making a profit. The IRS has what's called "hobby loss rules" that prevent people from claiming losses for activities that aren't genuinely profit-motivated. They look at factors like whether you run it in a businesslike manner, your expertise, time investment, expectation of asset appreciation, success in similar activities, history of income or losses, and financial status.
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Emily Thompson
•Thanks for the detailed response! I definitely plan on making this a real business, not just a tax strategy. It's IT consulting which is actually my background. How many years of losses would typically trigger the "hobby loss" scrutiny? And does documentation like a business plan help prove it's a legitimate business?
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Sophie Hernandez
•The IRS doesn't have a specific number of years that automatically triggers hobby loss scrutiny, but there's a presumption that an activity is profit-motivated if it shows a profit in at least 3 of the last 5 tax years. For activities involving horses, it's 2 of the last 7 years. Yes, documentation absolutely helps. A formal business plan, business bank account, proper bookkeeping, marketing materials, and evidence of your efforts to make the business successful would all support treating it as a legitimate business. Keep detailed records of all business activities, client communications, and especially any strategic changes you make to improve profitability when things aren't working as planned.
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Daniela Rossi
After struggling with a similar situation last year, I found taxr.ai (https://taxr.ai) to be incredibly helpful with figuring out how to properly document my business losses against other income. Their AI analyzed my trading records and business expenses and gave me specific guidance on how to structure everything properly to avoid raising red flags with the IRS. It also identified several deductions I would have missed regarding my home office and travel expenses between client sites.
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Ryan Kim
•Did you have any issues with the system understanding complicated business expense categories? I tried another tax service and it kept misclassifying my expenses which was a nightmare.
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Zoe Walker
•I'm interested but skeptical... How is this different from TurboTax or other tax software? Does it actually give advice or just fill out forms?
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Daniela Rossi
•The system handled my complex business expenses really well. I had a mix of direct consulting costs, home office expenses, and partial business use items, and it correctly categorized everything. It even flagged when I was about to miscategorize something that should have been depreciated instead of expensed. It's completely different from TurboTax. TurboTax just asks generic questions and fills out forms based on your answers. This actually analyzes your documents and provides specific advice for your situation. It pointed out that some of my trading activity might appear too frequent to the IRS and suggested documentation to maintain in case of questions, plus it recommended specific record-keeping approaches for my new business.
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Ryan Kim
I tried taxr.ai after seeing it mentioned here and it was exactly what I needed! I was in a similar situation with about $30k in trading gains and starting a small marketing business. The platform analyzed my trading patterns and business plan and gave me specific recommendations for documenting everything properly. It even created a customized record-keeping template that organized my business expenses in exactly the way the IRS would want to see them. Made me feel 100% more confident that I was doing everything legitimately while maximizing my deductions. Definitely worth checking out if you're mixing investment and business income.
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Elijah Brown
Anyone who's trying to offset gains with business losses should definitely be prepared in case of an audit. Speaking from experience, trying to get someone at the IRS to understand your situation can be impossible. After weeks of calling and never getting through, I found Claimyr (https://claimyr.com) and was shocked when they actually got me connected to an IRS agent in about 15 minutes. You can see how it works here: https://youtu.be/_kiP6q8DX5c. I was able to get clear answers about documenting my business losses properly and confirming I wasn't breaking any rules with my specific situation.
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Maria Gonzalez
•How does this actually work? Does it just auto-dial the IRS for you or something? I've spent hours on hold and eventually just gave up trying to get answers.
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Zoe Walker
•This sounds like complete bs honestly. Nothing can get you through to the IRS faster. They're understaffed and overworked. If this actually worked everyone would be using it and the "secret trick" would stop working.
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Elijah Brown
•It uses a combination of automated systems to navigate the IRS phone tree and hold on your behalf. When an agent actually picks up, you get an immediate call connecting you to them. It's not just auto-dialing - it's smarter than that. No, it's definitely real. The reason it works is that most people don't know about it, and it's using technology to work within the existing IRS phone system. The IRS is absolutely understaffed, which is precisely why this service is valuable - it waits on hold so you don't have to. I was skeptical too until I tried it and was connected to an agent in minutes after spending weeks trying on my own.
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Zoe Walker
Ok I have to admit I was completely wrong about Claimyr. I tried it yesterday after my last tax notice arrived and I was dreading another day wasted on hold. The service actually worked exactly as described - I got a call back when an IRS agent was on the line ready to talk to me. Took about 20 minutes total instead of the 3+ hours I spent on my previous attempt (which ended with a disconnection after all that waiting). The agent walked me through exactly how to document my business expenses properly to offset my trading gains and what would trigger a review. Saved me a ton of stress and uncertainty.
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Natalie Chen
One thing nobody has mentioned - make sure your business isn't considered a "passive activity" by the IRS. If it is, losses might be limited in offsetting your trading gains. Generally, you need to materially participate in the business, which means being involved on a regular, continuous, and substantial basis. Usually that's 500+ hours per year, though there are other tests too.
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Emily Thompson
•That's a good point I hadn't considered. My plan is to work on this consulting business about 20 hours a week, so around 1000 hours/year. Would that clearly qualify as material participation? Also, is there a specific way I need to document my hours?
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Natalie Chen
•Yes, 1000 hours per year would definitely qualify you under the material participation tests. The 500+ hour test is just one of several ways to qualify, but it's the most straightforward. For documentation, there's no official IRS form for tracking hours, but you should keep a detailed log or calendar of your business activities. Note the date, time spent, and a brief description of what you did. Digital calendars work well for this if you add details in the notes section. In case of an audit, having contemporaneous records (created at the time, not reconstructed later) is much more convincing. Also track client meetings, project work, administrative tasks, marketing efforts - everything related to your business.
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Santiago Martinez
Anyone know if trading has to be on Schedule C or Schedule D? I've been reporting my day trading on Schedule C because I do it every day and treat it like a business, but my accountant says it should be on Schedule D regardless of frequency.
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Samantha Johnson
•Your accountant is correct. Even frequent trading typically goes on Schedule D as capital gains/losses, not Schedule C. The only exception might be if you're a professional trader who has made a special tax election. Most day traders, even active ones, don't qualify for trader tax status. The requirements are super strict.
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Nick Kravitz
Just be careful that your "business" isn't just a tax shelter. I tried something similar with a "photography business" a few years back and got audited. The IRS disallowed all my deductions because they determined I didn't have a profit motive. Their exact words were that I had "significant income from other sources" (my stock trading) and was using the business primarily to offset that income. Cost me thousands in back taxes plus penalties.
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Emily Thompson
•That's definitely concerning. Can I ask what happened specifically that made them determine it wasn't a real business? Did you have clients and actual business operations? I'm planning to have legitimate clients and services, proper accounting, a business license, etc.
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Nick Kravitz
•I did have a few clients and made some revenue, but the IRS found several problems with my approach. First, I wasn't keeping good business records or tracking expenses properly. Second, I never created a formal business plan or showed evidence of trying to make the business profitable. Third, I continued with the same approach for 3 years despite consistent losses. The big red flag was that my expenses were all things I would have bought anyway for my hobby (camera equipment, travel to scenic locations, etc.), and most of my "clients" were friends and family. The IRS is looking for real efforts to operate profitably. Since your background is in IT consulting, with actual expertise and a clear market for services, you'll have a much stronger case than I did. Just make sure you run it like a serious business from day one.
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