Business Structures

References

Business Structure

| Structure | Description | | ——————— | —————————————— | | Sole Proprietorship | Unincorporated, single owner | | Partnership | Two or more people doing business together | | LLC | Hybrid entity with liability protection | | Corporation (C-Corp) | Separate legal entity, default is C-Corp | | Nonprofit Corporation | Formed for charitable purposes |

Tax designations

Tax DesignationWho Can Elect ItNotes
Sole ProprietorSole ownerDefault for unincorporated individuals
PartnershipMulti-member LLCs or partnershipsPass-through
S-CorporationLLCs or corporations that qualifyMust file IRS Form 2553
C-CorporationDefault for corporationsDouble taxation
Nonprofit 501(c)(3)Nonprofit corporationsMust apply to IRS

LLC vs Inc

| Feature | LLC (Limited Liability Company) | Inc / Corporation (C-Corp or S-Corp) | | ———————– | ————————————————- | —————————————————- | | Legal Identity | Separate legal entity | Separate legal entity | | Owners | Members (can be individuals or entities) | Shareholders | | Management | Flexible (member- or manager-managed) | Board of directors and officers required | | Taxation (Default) | Pass-through (sole prop or partnership) | C-Corp: Double taxation
S-Corp: Pass-through | | Can Elect S-Corp? | ✅ Yes | ✅ Yes (by filing IRS Form 2553) | | Stock Issuance | ❌ No stock — just membership interests | ✅ Can issue multiple or single classes of stock | | Formalities | Minimal (no board or annual meetings required) | High (meetings, minutes, bylaws, annual reports) | | Profit Distribution | Flexible as per operating agreement | Based on share ownership | | Best For | Small businesses, freelancers, partnerships | Startups, VC-backed firms, businesses issuing equity | | Raising Capital | Harder (no shares to sell) | Easier — can sell stock to investors | | Perpetual Existence | Optional — depends on state & operating agreement | Yes — continues regardless of ownership change | | Self-Employment Tax | Members usually pay full self-employment tax | S-Corp avoids SE tax on distributions (partial) | | Name Suffix | Must include “LLC” or similar | Must include “Inc.”, “Corp.”, “Co.” etc. |

Tax Benefits

The most common way to get tax deductions is by using the funds you’ve invested to cover legitimate business expenses.

These expenses can then be deducted on the S-corp’s tax return (Form 1120-S). Some examples of deductible business expenses include:

Basis Limitations in S-Corporations

Basis limitations are a key rule for S-corporation shareholders, determining the maximum amount of losses and deductions they can claim on their individual tax returns.

How is basis determined?

Your basis in an S-corporation includes your stock basis and your debt basis. Stock basis: This includes your initial capital contributions to the corporation. Debt basis: This includes direct loans you’ve made to the S-corporation. Important note: Loans guaranteed by the shareholder, but not made directly to the corporation, do not increase debt basis.

Law

The basis limitations for S-corporation shareholders are primarily governed by Internal Revenue Code (IRC) Section 1366(d)(1). This section states that a shareholder’s aggregate amount of losses and deductions cannot exceed the sum of:

What happens to losses exceeding basis?

Losses that cannot be deducted in the current year due to basis limitations are suspended. These suspended losses are carried over to future years and can be deducted when the shareholder’s basis increases.

If a shareholder disposes of their stock while suspended losses exist, those losses are permanently lost.

Other Loss Limitations:

It’s important to remember that the basis limitation is just one of several loss limitations that apply to S-corporation shareholders. Other limitations include:

Trader Tax Status (TTS)

RequirementStandard (not fixed, but derived from IRS rulings)
1. Frequency~500+ trades per year (minimum benchmark)
2. Holding PeriodMostly short-term trades (under 30 days, ideally under 10)
3. Intent to Profit from Market MovementSpeculative trading — not long-term investing or dividend capture
4. Substantial Time~4+ hours/day, almost every trading day
5. Continuous ActivityRegular trading for at least 4–6 months per year
6. Business SetupMaintain books, separate accounts, trading plan (not mandatory but helpful)
7. Tools & StrategyUse of charts, algorithms, leverage, market-timing tools