How would taxes work for a C-Corp as a subsidiary of an LLC?
I've been operating my Miami-based LLC for about 18 months now and have been writing off all my business expenses through it. Things are looking up and I've got some investors interested in putting some serious capital into my tech startup. From what I understand, I need to set up a Delaware C-Corporation to accept the investment properly. I've been doing some research and I'm considering making the C-Corp a subsidiary of my existing LLC rather than dissolving the LLC completely. I'm confused about how taxation would work in this kind of arrangement though. How would the taxes flow between the LLC parent and the C-Corp subsidiary? Would the LLC still be able to write off expenses related to the business, or would everything need to go through the C-Corp? And how would income be taxed when it moves between the entities? Really appreciate any insights from those who've set up similar structures or understand corporate tax implications!
35 comments

Nadia Zaldivar
This is actually a pretty common setup for businesses transitioning from bootstrap to investment funding. Let me break it down for you in simple terms. Your Florida LLC and the Delaware C-Corp would be treated as separate tax entities. The C-Corp will file its own tax returns (Form 1120) and pay corporate taxes on its profits at the corporate tax rate. It's a completely separate taxpayer from your LLC. Your LLC, assuming it's a single-member LLC, would continue to be taxed as a pass-through entity where profits flow to your personal tax return. If it's a multi-member LLC, you're likely filing Form 1065 and distributing K-1s. The tricky part comes with the relationship between them. If the LLC owns the C-Corp, then any dividends paid by the C-Corp to the LLC would be taxable income to the LLC. There's no parent-subsidiary consolidated return option like there would be if both were C-Corps. For startup expenses, each entity would deduct its own legitimate business expenses. You can't use the LLC to write off expenses that are legitimately the C-Corp's, and vice versa.
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Lukas Fitzgerald
Thanks for explaining! So if the C-Corp makes money and wants to distribute it to the LLC as the owner, it first pays corporate tax on profits and then the LLC owner pays tax again on those dividends? Isn't that double taxation? Also, what about if the LLC provides services to the C-Corp - like if I'm managing both, can the C-Corp pay the LLC for management services?
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Nadia Zaldivar
Yes, you've hit on one of the major considerations with C-Corps - the potential for double taxation. The C-Corp pays tax on its profits, and then when dividends are distributed to shareholders (in this case your LLC), those dividends are taxed again. This is indeed double taxation and one of the downsides of the C-Corp structure. Regarding your second question, yes, the LLC can provide legitimate services to the C-Corp, and the C-Corp can pay the LLC for these services. This is actually a common strategy. These would be business expenses for the C-Corp (reducing its taxable income) and income for the LLC. However, these arrangements need to be at "arm's length" with fair market value compensation - meaning the amounts need to be reasonable for the services provided. The IRS scrutinizes related party transactions, so you'll want well-documented service agreements and market-rate payments.
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Ev Luca
After struggling with a similar setup for my business, I discovered taxr.ai (https://taxr.ai) and it's been a game-changer for managing complex entity structures like what you're describing. I was trying to figure out how to properly document transactions between my LLC and new C-Corp subsidiary, and their AI-powered document analysis saved me hours of headaches. Their system analyzed my operating agreements, identified tax optimization opportunities I hadn't considered, and gave me crystal-clear guidance on how to structure the relationship between my entities. What really impressed me was how it flagged potential audit risks in my planned approach that neither I nor my bookkeeper had caught.
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Avery Davis
How does taxr.ai handle things like transfer pricing between related entities? That's always been a headache for me when dealing with my business structures. Does it give specific recommendations or just general guidelines?
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Collins Angel
I've heard of AI tax tools but I'm skeptical. How does it compare to just hiring a good CPA who specializes in business structures? And does it actually help with state-specific issues like Delaware C-Corps owned by Florida LLCs?
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Ev Luca
It actually has specific modules for transfer pricing documentation. It helps you establish and document fair market rates for services between your entities, which creates a defensible position if you're ever audited. The system even generates the supporting documentation you need to keep on file. For your question about CPAs versus AI tools, I still work with my CPA but taxr.ai has drastically reduced the time and money I spend with them. It handles the initial analysis and document preparation, then my CPA reviews everything, which costs much less than having them do it all from scratch. And yes, it definitely addresses state-specific issues - it has extensive knowledge of Delaware corporate law and how it interacts with other state entities like Florida LLCs.
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Collins Angel
I was super skeptical about AI tax tools like taxr.ai but decided to give it a try after seeing it mentioned here. Holy crap, I'm kinda blown away by what it did for my LLC/C-Corp structure! My situation was similar - Arizona LLC with a Delaware C-Corp subsidiary - and I was getting conflicting advice from different accountants. Taxr.ai analyzed my corporate docs and actual generated a detailed tax strategy document that outlined exactly how to optimize the flow of money between my entities. The best part was discovering I could legitimately have my LLC charge management fees to the C-Corp which helped avoid some of the double taxation issues. It even generated the service agreements I needed! Way more specific and actionable than what I got from my previous tax guy, who was charging me $350/hr for generic advice.
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Marcelle Drum
If you're setting up a Delaware C-Corp and trying to manage the tax relationship with your LLC, you'll probably need to talk to the IRS at some point. I was in similar shoes last year and wasted DAYS trying to get through to someone who could actually help with my entity structure questions. I finally discovered Claimyr (https://claimyr.com) and it completely changed my experience. They have this callback service that somehow gets you through to the IRS without waiting on hold for hours. You can see how it works in this video: https://youtu.be/_kiP6q8DX5c I was honestly shocked when I got a call back from an actual IRS agent within 45 minutes who specialized in business entities. Got clarification on exactly how to handle the distributions from my C-Corp to my parent LLC and what documentation I needed to maintain.
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Tate Jensen
Wait, how does this actually work? The IRS phone system is notoriously impossible to navigate. Are you saying this service somehow bypasses the regular phone queue? Sounds too good to be true honestly.
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Adaline Wong
Yeah right. I've been trying to reach the IRS for MONTHS about my business tax structure. No way some random service can magically get through when nobody else can. Sounds like a scam that just takes your money and you still wait forever.
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Marcelle Drum
It works by using their automated system to continually call the IRS and navigate the phone tree until it gets through, then it calls you and connects you. You don't have to sit on hold - you just get a call when an agent is actually on the line. It's basically doing what you'd do manually, but with technology that can keep dialing and navigating the menu system. I was skeptical too. I've spent literally days of my life on hold with the IRS over the years. But it actually works - I got through to a business entity specialist who answered all my questions about my LLC/C-Corp structure. The time saved was worth every penny, especially when tax decisions about your business structure can have such huge financial implications.
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Adaline Wong
Ok I need to eat crow here. After posting my skeptical comment, I decided "what the hell" and tried Claimyr for my LLC/C-Corp question. I've been trying to get clear answers from the IRS for MONTHS about how to handle certain transactions between my entities. I got a call back in 37 minutes with an actual knowledgeable IRS rep on the line! They answered my specific questions about how distributions from my C-Corp to my LLC would be taxed and clarified exactly what documentation I needed to keep. Saved me literally weeks of frustration and probably prevented me from making some expensive tax mistakes. Can't believe I wasted so much time trying to call them directly.
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Gabriel Ruiz
Don't overlook the state tax implications in this structure. Your Delaware C-Corp will pay the Delaware franchise tax (minimum $175 annually), but may also have tax filing obligations in Florida if it's conducting business there. Similarly, even though Florida doesn't have state income tax for individuals, your LLC might have filing requirements in Delaware depending on operations. Also, investors typically prefer clean corporate structures. Have you considered just shutting down the LLC and rolling everything into the C-Corp? Might be cleaner for future funding rounds.
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Rajan Walker
AuthorThanks for bringing up the state tax angle - hadn't really thought about that! Do you know if management activities alone would create nexus in Florida for the Delaware C-Corp? Would the fact that the LLC owns the C-Corp automatically create nexus? I did consider just rolling everything into the C-Corp, but I have some assets and operations in the LLC that I'd prefer to keep separate from investor funds for now. I'm concerned about the additional complexity though.
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Gabriel Ruiz
Management activities could indeed create nexus in Florida for your Delaware C-Corp, especially if key decision-making and management functions are happening there. The ownership structure itself doesn't automatically create nexus, but the actual business activities do. I understand wanting to keep certain assets separate from investor funds. One alternative structure to consider is having the C-Corp be the parent and the LLC be the subsidiary instead of vice versa. This is actually more common for funded startups, and investors are more familiar with it. You could contribute specific assets to the LLC subsidiary while keeping the main operations and investment in the C-Corp. This structure can also potentially simplify eventual exits, as acquirers typically prefer dealing with C-Corps.
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Misterclamation Skyblue
Dont forget to factor in legal protections too not just taxes! Having LLC own C-Corp creates an extra layer between u and liabilities which can be good. But also makes raising more $$ more complicated cause investors gotta go thru LLC to get to C-Corp. I had similar setup and ended up with C-Corp as parent instead, with an LLC subsidiary for riskier parts of business. made subsequent funding rounds WAY easier. just my 2 cents
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Peyton Clarke
Could you expand on the liability protection aspect? I thought a C-Corp already provides good liability protection, so what's the advantage of the additional LLC layer in terms of legal shields?
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AstroAdventurer
This is a really complex area and I'd strongly recommend getting professional advice, but I can share some insights from my experience with similar structures. One major consideration that hasn't been fully addressed is the potential Section 351 tax implications when you contribute assets from your LLC to the new C-Corp. If you're transferring property (including IP, equipment, or other business assets) from your LLC to the C-Corp in exchange for stock, you'll want to make sure this qualifies for tax-free treatment under Section 351. Otherwise, you could trigger immediate taxable gain recognition. Also, regarding the double taxation issue - while it's true that C-Corp dividends create double taxation, many startups avoid this by not paying dividends at all. Instead, they reinvest profits back into the business or compensate key employees (including yourself) through reasonable salaries and bonuses, which are deductible to the C-Corp. Another strategy to consider is having the LLC provide legitimate services to the C-Corp (as mentioned earlier) - things like administrative services, office space rental, or consulting. This creates a deductible expense for the C-Corp and income for the LLC, which can help optimize the overall tax burden. Just make sure all inter-company transactions are properly documented and at fair market value to avoid IRS scrutiny!
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Chloe Harris
Great point about Section 351! I'm actually dealing with something similar right now. When you mention "reasonable salaries and bonuses" - how do you determine what's reasonable for someone who's both the LLC owner and a key employee of the C-Corp? I'm worried about the IRS challenging compensation levels, especially in the early stages when the C-Corp might not have much revenue yet. Also, do you know if there are any safe harbors or guidelines for determining fair market value for inter-company services like office space rental between related entities?
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QuantumQuasar
Great questions! For reasonable compensation, the IRS looks at several factors: comparable salaries for similar roles in your industry/geographic area, your qualifications and experience, the company's financial condition, and the time you devote to the business. Early-stage companies can justify lower salaries due to cash flow constraints, but you should document this reasoning. Services like Salary.com or PayScale can help establish benchmarks. For inter-company services, the key is arm's length pricing. For office space, you can use local commercial rental rates per square foot. For consulting/management services, look at what independent contractors charge for similar work. Document everything - get quotes from third parties even if you don't use them, keep records of market research, and have written service agreements. The IRS Revenue Procedure 2006-9 provides some guidance on advance pricing agreements for related party transactions, though it's more for larger companies. When in doubt, slightly undercharge rather than overcharge to avoid appearing aggressive, and always keep detailed contemporaneous records of how you determined fair market value.
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Kaitlyn Jenkins
Great questions! For reasonable compensation, the IRS looks at several factors: comparable salaries in your industry and geographic area, the person's qualifications and responsibilities, and the company's financial condition. Even in early stages with limited revenue, you can justify compensation based on what similar roles pay at comparable companies. The key is documenting your research - save job postings, salary surveys, or industry reports that support your compensation levels. For inter-company pricing, the IRS requires "arm's length" transactions - basically what unrelated parties would charge each other. For office space, look at comparable commercial rents in your area. For services, research what consultants or service providers charge for similar work. Document everything with written agreements that specify the services provided, payment terms, and how you determined the pricing. Pro tip: Consider getting a transfer pricing study done by a professional if the dollar amounts are significant. It's expensive upfront but provides strong audit protection. Also, review and update your inter-company agreements annually - market rates change and your business evolves.
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Sarah Jones
For reasonable compensation, the IRS typically looks at what similar professionals in your industry and geographic area would earn for comparable work. Even in early-stage companies, you should pay yourself a salary that reflects the actual services you're providing - whether that's as CEO, CTO, or in whatever operational role you're filling. The key is having documentation that supports your compensation decision, like industry salary surveys or comparable company data. Regarding safe harbors for inter-company transactions, there aren't specific safe harbor amounts, but the IRS does provide guidance that transactions between related parties must be at "arm's length" - meaning the same terms you'd negotiate with an unrelated third party. For office space, you'd want to research comparable rental rates in your area. For services, look at what you'd pay an outside consultant or service provider for similar work. One practical tip: document everything contemporaneously. Draft service agreements, keep records of market research you did to set pricing, and maintain detailed records of services actually provided. This creates a paper trail that shows you made good faith efforts to price things fairly, which goes a long way if you're ever questioned by the IRS. The early-stage revenue concern is valid, but remember that reasonable compensation is based on the work being performed, not necessarily the company's ability to pay. Many startups do start with lower-than-market salaries and make up the difference with equity or deferred compensation arrangements.
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Maria Gonzalez
Great questions! For reasonable compensation, the IRS looks at several factors: comparable salaries for similar roles in your industry/geographic area, the person's qualifications and responsibilities, company size and complexity, and time devoted to the business. Even in early stages with low revenue, you can justify reasonable comp based on market rates for your role - just document your research (salary surveys, job postings, etc.). For inter-company services, fair market value is what unrelated parties would charge for the same services. For office space, look at comparable commercial lease rates in your area. For administrative services, research what management companies or consultants charge for similar work. The key is documentation - keep records of your market research, written service agreements, and invoices that clearly describe services provided. Some practitioners use cost-plus pricing (actual costs plus reasonable markup) for shared services, which can be easier to defend. Whatever approach you use, consistency is important - don't change methodologies without good business reasons. Also consider getting a transfer pricing study if the dollar amounts become significant, as it provides strong audit protection.
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NebulaNomad
Great questions! For reasonable compensation, the IRS looks at several factors: what similar companies pay for comparable roles, the person's qualifications and responsibilities, company performance, and time devoted to the business. Even in early stages with low revenue, you can justify compensation based on market rates for your role and the value you're adding. The key is documentation - keep records of job descriptions, time worked, and salary surveys for similar positions. For inter-company services like office space, the IRS expects "arm's length" pricing - basically what you'd charge an unrelated party. For office space, you can use local commercial real estate rates per square foot. For services, look at what consultants or service providers charge for similar work in your market. Some safe approaches include: getting written appraisals for significant transactions, documenting your methodology for setting prices, and keeping records of comparable market transactions. The IRS is more likely to challenge arrangements that seem unusually favorable to one entity over another.
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Jean Claude
For reasonable compensation, the IRS looks at several factors: comparable salaries in your industry and geographic area, the individual's qualifications and responsibilities, the company's financial condition, and the amount of time devoted to the business. Even in early stages with low revenue, you still need to pay yourself a reasonable salary if you're performing officer duties. I'd recommend looking at salary surveys for similar roles in your industry and documenting your rationale. For fair market value on inter-company transactions like office space rental, you can use comparable market rates for similar properties in your area. Get quotes from commercial real estate brokers or look at actual lease agreements for similar spaces. For services, document the time spent and use market rates for those services. The key is having contemporaneous documentation showing how you arrived at your pricing - don't just pick numbers out of thin air. Keep detailed records of your analysis and the sources you used to determine fair market value.
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Ellie Kim
For reasonable compensation, the IRS looks at several factors including your role, responsibilities, hours worked, company size, industry standards, and qualifications. Even in early stages with low revenue, you need to pay yourself a reasonable salary for services actually performed. I'd recommend researching comparable positions in your industry and geographic area using resources like BLS data or compensation surveys. Regarding safe harbors for inter-company transactions, there aren't specific safe harbors, but the key is documenting that your pricing is at "arm's length" - what unrelated parties would charge. For office space, look at comparable commercial rents in your area. For services, document the actual work performed and research market rates. Keep detailed records including written agreements, invoices, and evidence of market research. The IRS is more likely to challenge transactions that seem artificially high or low compared to market rates. Consider getting periodic valuations or opinions from qualified professionals, especially as your business grows. This creates a defensible position if questioned later.
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Noland Curtis
Great questions! For reasonable compensation, the IRS looks at several factors: comparable salaries for similar roles in your industry/geographic area, the person's qualifications and responsibilities, company size and complexity, and the time devoted to the business. Even with limited revenue, you can justify reasonable compensation based on market rates - just document your research. Sites like PayScale, Glassdoor, or industry salary surveys can help establish benchmarks. For inter-company services, there aren't specific safe harbors, but you want to use the "arm's length" standard - what would unrelated parties charge for the same services? For office space, research comparable commercial rents in your area. For consulting/management services, look at what similar professionals charge. The key is documentation - keep records of your market research, written service agreements, and regular invoicing between the entities. One tip: consider getting a transfer pricing study done if the dollar amounts are significant. It's an upfront cost but provides strong audit defense if the IRS ever questions your pricing.
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Anita George
For reasonable compensation, the IRS typically looks at what you'd pay an unrelated person for similar services in your industry and geographic area. You can use salary surveys, job postings, or compensation studies as supporting documentation. In early stages with limited revenue, you might start with a lower base salary but document your plan to adjust it as the business grows. For inter-company services like office space, you'll want to establish fair market rates based on comparable commercial leases in your area. The IRS expects "arm's length" pricing - meaning you'd charge the same rate to an unrelated third party. Keep detailed records of how you determined the rates, including any market research or comparable transactions you reviewed. One helpful approach is to draft formal service agreements between your entities that specify the services provided, compensation methodology, and how rates were determined. This creates a paper trail that shows you were thinking about fair market value from the beginning, not just trying to manipulate income after the fact.
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Sofia Martinez
Great questions! For reasonable compensation, the IRS looks at several factors: comparable salaries for similar roles in your industry/geographic area, the person's qualifications and responsibilities, the company's financial condition, and the time devoted to the business. In early-stage C-Corps, it's often safer to err on the conservative side initially and increase compensation as revenues grow. The IRS has more scrutiny on excessive compensation than insufficient compensation in the startup phase. For fair market value on inter-company services like office space, you'll want to document comparable market rates. For office space, look at similar commercial lease rates in your area. For administrative services, research what third-party providers would charge for similar services. The key is creating a paper trail - service agreements, invoices, market research documentation, etc. Some people use appraisals for significant assets or ongoing arrangements, but for routine services, documented market comparisons are usually sufficient. The IRS wants to see that you're treating the entities as truly separate businesses, not just shifting money around for tax purposes.
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Hunter Edmunds
For reasonable compensation, the IRS looks at several factors: your qualifications, responsibilities, time devoted to the business, and what similar roles pay in your industry/geographic area. In early-stage C-Corps with limited revenue, you have some flexibility, but you still need to justify the amounts. I'd suggest documenting your hours worked, responsibilities, and researching compensation data for similar positions (sites like PayScale, Glassdoor, or industry surveys can help). Regarding fair market value for inter-company services, there aren't really "safe harbors" per se, but the key is demonstrating arm's length pricing. For office space, you can use local commercial real estate comparables. For services, document the time spent, market rates for similar services, and keep detailed records. The IRS uses the "willing buyer, willing seller" standard - basically what an unrelated party would charge for the same service. Pro tip: Consider getting a transfer pricing study done if the dollar amounts are significant. It's an upfront cost but creates strong documentation if you're ever audited.
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Zara Ahmed
For reasonable compensation, the IRS typically looks at several factors: comparable salaries for similar positions in your industry/geographic area, the complexity of your role, company size, and your qualifications/experience. In early stages with limited revenue, you might actually pay below-market rates initially and true-up later as cash flow improves. Regarding safe harbors for inter-company transactions - there aren't specific safe harbor amounts, but the key is documentation. For office space, get comparable rental rates for similar spaces in your area (commercial real estate websites, local brokers). For services, document the actual services provided, time spent, and market rates for similar consulting work. The IRS wants to see that you treated the transaction as if you were dealing with an unrelated third party. Many people use cost-plus pricing (actual costs + reasonable markup) for shared services, which is generally well-accepted. Just keep detailed records of everything - service agreements, invoices, time logs, and market research supporting your pricing decisions.
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Aisha Hussain
Great questions! For reasonable compensation, the IRS looks at several factors: comparable salaries for similar roles in similar companies, your qualifications and experience, the time you devote to the business, and the company's financial condition. Even in early stages with limited revenue, you can justify compensation based on the value you provide and what similar executives would earn. Document your responsibilities and research comparable positions using resources like Bureau of Labor Statistics data or industry salary surveys. For inter-company services like office space rental, the key is establishing fair market value through comparable transactions. You can use local commercial real estate rates, get quotes from third-party providers for similar services, or document the actual costs involved. Keep detailed records of how you determined the pricing - this documentation is crucial if the IRS ever questions the arrangement. One tip: consider getting a valuation or transfer pricing study for significant inter-company transactions, especially if the amounts are substantial. It's an upfront cost but provides strong audit protection.
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Luca Marino
Great questions! For reasonable compensation, the IRS looks at several factors: comparable salaries for similar roles in your industry/geographic area, your qualifications and experience, the company's financial condition, and the time you actually spend working for the C-Corp. In early stages with limited revenue, you might justify lower salaries, but they should still be reasonable for the actual work performed. The IRS has challenged both excessively high compensation (to avoid payroll taxes) and artificially low compensation (to avoid reasonable salary requirements). For inter-company services like office space rental, I've found success using these approaches: get comparable rental rates for similar spaces in your area (commercial real estate websites are helpful), document the actual square footage and amenities provided, and maintain written lease agreements just like you would with unrelated parties. For other services, research what consultants or service providers charge for similar work in your market. The key is contemporaneous documentation - don't try to justify pricing after the fact. Keep records of your research and decision-making process. One tip: consider getting periodic independent valuations for significant inter-company transactions, especially as your business grows. It's an upfront cost but provides strong defense if questioned later.
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Hailey O'Leary
For reasonable compensation, the IRS looks at several factors: industry standards, company size, duties performed, and compensation paid by similar companies for similar services. For early-stage startups, you can justify lower initial salaries if the company genuinely can't afford market rates, but you need to document this reasoning. I'd recommend checking out salary surveys from organizations like CompTIA or Robert Half for your industry/role as benchmarks. Regarding fair market value for inter-company transactions, there aren't specific safe harbors, but you can establish defensible positions by: 1) Getting comparable market quotes for similar services/space in your area, 2) Documenting the methodology used to set prices, and 3) Reviewing and adjusting rates annually. For office space, look at commercial rental rates per square foot in your area. For services, research what third-party providers charge for similar work. The key is contemporaneous documentation - don't wait until an audit to justify your pricing. Keep records showing how you determined fair market value when you set up the arrangements.
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