Most founders believe that forming a company is the hard part. Fill out the online form, pay the filing fee, get the confirmation email, and you are done. You have a company. Time to raise money.
Not so fast.
What happens in those early structuring decisions determines whether your business can actually grow, attract investors, and exit successfully one day. Get it wrong, and you could face deadlocked boards, unexpected tax bills, SEC violations, and cap tables that make professional investors run the other way.
At Carbon Law Group, Pankaj Raval and Sahil Chaudry have spent over 15 years helping founders fix structuring mistakes that should never have happened in the first place. The problem is that fixing them after the fact costs significantly more than doing it right from the start. This guide covers the most critical issues, so you can avoid the mistakes entirely.

Mistake One: Not Understanding Authorized vs. Issued Shares
This is the first thing Sahil checks when a new client comes in. Almost every time, it is a problem.
Here is the issue. When a registered agent or online legal platform forms your corporation, the company authorizes a number of shares. Authorizing shares simply means the company has permission to issue up to that number. It does not mean anyone actually owns those shares yet.
Think of it like printing a batch of gift cards. Printing the cards does not put money on them. You still have to load each one individually.
Many founders discover, sometimes months after formation, that they have never actually issued shares to themselves. They believe they own their company, but there is no legal paper trail proving it. That matters enormously when you want to bring on investors, approve major decisions, or raise a funding round.
Here is why it is critical: you cannot issue shares to an investor before you have issued shares to yourself. Investor transactions require stockholder consent. If the founder does not legally hold shares yet, those approval processes cannot happen correctly. The entire transaction is built on a shaky legal foundation.
The fix involves creating a documented share issuance, either through a purchase agreement, a services agreement, or another appropriate mechanism. The paper trail has to exist. Before you do anything else with your company, confirm that your shares have actually been issued and that the documentation supports it.
Mistake Two: Ignoring SEC Safe Harbor Rules
This one surprises founders every single time. They assume that SEC regulations only apply to large companies doing public offerings. They assume that small, private issuances are exempt. That assumption is wrong.
Even if you issue a single share to a single investor, co-founder, or service provider who is working for equity, you are making a securities offering. Federal law governs securities offerings. Failure to comply can result in civil penalties, disgorgement of funds, and the right of investors to demand their money back.
The good news is that the SEC provides Safe Harbor regulations specifically designed for small companies and early-stage issuances. Regulation D is the most commonly used exemption, with Rule 506(b) and Rule 506(c) covering most private placements. Rule 701 applies when you are issuing equity to employees, contractors, or service providers. Regulation A provides a lighter filing process for smaller public offerings.
The key is knowing which exemption applies to your situation and filing the required paperwork correctly. A one-size-fits-all approach does not work here. The type of investor, the amount being raised, and the nature of the offering all affect which exemption applies.
Carbon Law Group helps founders navigate these rules before they issue a single share to anyone outside the founding team. Getting this wrong, even once, can create legal liability that follows your company all the way to your exit.
Mistake Three: Choosing the Wrong Entity Type
Not every business structure fits every business goal. One of the most important early decisions a founder makes is choosing the right entity type, and that choice should be driven by where you want to be in five to ten years.
LLC: Best for Cash Flow Businesses
If your goal is consistent monthly revenue and you want to keep profits flowing to the owners with minimal tax friction, an LLC is often the right choice. LLCs offer pass-through taxation, meaning the company does not pay entity-level income tax. Instead, profits and losses pass directly to the members, who report them on their personal tax returns.
This structure works well for service businesses, consulting firms, real estate ventures, and any company where distributions to owners are a primary objective. However, LLCs are not ideal if you plan to raise institutional venture capital, because most VCs prefer or require C-Corp structures.
S-Corp: Best for Solo Operators Avoiding Self-Employment Tax
An S-Corp is an excellent option for small business owners, especially single-member operations. The key benefit is the ability to pay yourself a reasonable salary while taking additional compensation as an equity distribution. Distributions are not subject to self-employment tax, which creates meaningful savings for owners in higher income brackets.
There are important limitations to keep in mind. An S-Corp cannot accept investment from non-individual entities, such as other corporations or foreign nationals. It is also capped at 100 shareholders. These constraints make it unsuitable for businesses planning institutional investment or international growth.
C-Corp: Best for Venture-Backed Exits
If your goal is a major exit through acquisition or IPO, a Delaware C-Corp is the gold standard. Institutional investors expect this structure. C-Corps support multiple classes of stock, unlimited shareholders, and foreign investment. Your company also becomes eligible for Qualified Small Business Stock (QSBS) treatment, which can produce significant capital gains tax exclusions for qualifying founders and early investors.
The downside of a C-Corp is double taxation at the entity and shareholder level. However, for companies pursuing venture capital or planning a significant exit, the tax trade-off is almost always worth it.
Mistake Four: Defaulting to Arbitrary Equity Splits
Here is a conversation that happens constantly. Three co-founders sit down to divide equity. No one wants to have an awkward negotiation. Someone suggests 33/33/33 because it feels fair. Everyone agrees, and the issue gets dropped.
This is one of the most expensive shortcuts a founding team can take.
Equity should reflect what each person is actually contributing to the company. Some founders contribute capital. Others contribute intellectual property, a patent, a proprietary system, or a customer list. Others contribute their time and services. Each of those inputs has a different value and a different risk profile. Treating them as equal when they are not creates resentment and disputes later.
There is also the board control problem. A 50/50 equity split between two co-founders means a 50/50 board split. That creates a deadlock scenario where neither party can make a binding decision if they disagree. Carbon Law Group strongly advises against this structure and recommends building in tie-breaking mechanisms or adjusting board composition to avoid stalemates.
Why Percentages Are the Wrong Way to Think About Equity
Percentages are also misleading over time. A 33% stake today becomes 28% after the next funding round. Founders are better served thinking in shares or units rather than percentages, because percentages shift with every new investor, while share counts remain fixed as of a specific date.
There are practical tools to help with this. One straightforward approach is a contribution calculator that maps each founder’s input against the others and generates a proportional split based on actual data rather than gut feelings. A more dynamic option is the Slicing Pie model, which tracks each founder’s contributions over time and adjusts equity accordingly. It requires more ongoing recordkeeping but produces a more accurate and defensible split.
Whatever method you use, the key is to have the conversation early and document the result clearly in your operating agreement or shareholder agreement.
Mistake Five: Skipping Vesting Schedules
Granting equity upfront without a vesting schedule is one of the riskiest things a founding team can do.
Imagine you bring on a co-founder, give them 30% of the company, and six months later, they decide to move on. Without a vesting schedule, they walk out the door with their full equity stake intact. You now share your company with someone who is not building it.
Vesting schedules solve this by tying equity to continued involvement. A common structure includes a one-year cliff followed by monthly vesting over the next three to four years. The cliff means no equity vests at all during the first year. After the cliff, the employee or co-founder has earned a portion, typically 25%, and the remainder continues to vest monthly over the remaining period.
This structure aligns incentives. Everyone on the team has a financial reason to stay and contribute. It also protects the company if someone leaves early, because the company can often repurchase unvested shares at the original issue price.
Vesting schedules are not just good practice for founders. Institutional investors expect them. If your company does not have vesting in place when a VC performs due diligence, they will likely require it as a condition of investment and may view the absence as a red flag about your business judgment.
Mistake Six: Failing to File the 83(b) Election
This is the mistake that keeps attorneys up at night, because it is easy to avoid and incredibly expensive to ignore.
When you receive equity on a vesting schedule, the IRS taxes you as that equity vests. By default, you pay ordinary income tax on the fair market value of shares at the time they vest, not at the time the company issued them. If your company grows significantly, those shares are worth much more when they vest than when you first received them. That means a much larger tax bill.
The 83(b) election lets you opt out of that default treatment. By filing this election within 30 days of receiving your equity, you choose to be taxed on the nominal value of the shares at the time of issuance, which is typically close to zero for an early-stage company. When you eventually sell those shares at a much higher price, you pay capital gains tax rather than ordinary income tax, and only at that point.
The 83(b) election is one of the most powerful tax planning tools available to founders, and it costs almost nothing to file. Miss the 30-day window, however, and the opportunity is permanently gone. There are no extensions and no exceptions.
If you are receiving restricted shares or units of any kind, talk to a business attorney before you do anything else. Filing the 83(b) election is one of the simplest and most valuable actions you can take.
Build It Right From the Start
Structuring your company correctly is not just a legal formality. It is the foundation everything else sits on. Your fundraising, your investor relationships, your exit, and your tax position all depend on decisions you make in the first few weeks of your company’s existence.
Online formation tools can get a company created. They cannot replace the strategic thinking that goes into building a company designed to grow, raise capital, and protect the people who built it.
At Carbon Law Group, we work with early-stage founders across Los Angeles and beyond to get these decisions right from day one. Whether you are forming a new entity, preparing for your first funding round, or working to correct structuring mistakes from earlier decisions, we are here to help.
Visit carbonlg.com to schedule a consultation. Let us help you build the foundation your company deserves.
This article is based on Episode 56 of Letters of Intent, hosted by Pankaj Raval and Sahil Chaudry of Carbon Law Group. Subscribe and follow the show for ongoing legal and business insights built for founders and operators at every stage of growth.