- Business income and trading income are taxed differently. Course sales, ad revenue, sponsorships, subscriptions and most prop firm payouts are typically self-employment income; gains in a personal trading account are generally capital gains instead.
- Self-employment tax is usually the largest single line: 15.3% on net earnings for 2026 — 12.4% Social Security to the $184,500 wage base, plus 2.9% Medicare with no cap.
- An LLC by itself generally changes liability, not tax. The tax question typically starts with the separate S-Corp election, and the commonly cited threshold is around $80,000 of net self-employment income.
- Platform 1099s (YouTube, Discord/Whop, Substack, affiliate networks) frequently do not match bank deposits — the gap is typically fees, refunds, or timing, not missing income.
- Eleven guides make up this cluster, split between entity strategy (the LLC/S-Corp question) and income-specific treatment (courses, ads, Discord, YouTube, sponsorships, affiliates, newsletters).
The Same Business, Several Tax Treatments
Everything in this cluster starts from the same fact: running an online business rarely means one type of income. A creator or business owner might have course revenue, ad spend to deduct, a paid Discord or Substack, sponsorship deals, and an entity question about whether an LLC or S-Corp actually helps — often all in the same tax year.
None of that is exotic on its own. What typically makes it complicated is that each piece is taxed a little differently, and the guides below are written to be read individually — find the one that matches the situation, rather than treating this page as one long document to get through.
The 11 Guides in This Cluster
The LLC/S-Corp question, from "do I need one" to what a defensible salary looks like.
How each income type is typically taxed, and what most people in that lane deduct.
Where Online Business Tax Questions Usually Start
A few questions come up on almost every page in this cluster, so it is worth stating them once rather than repeating them eleven times.
- Self-employment tax is usually the biggest line. For 2026, SE tax is 15.3% on net self-employment earnings — 12.4% Social Security to the $184,500 wage base, plus 2.9% Medicare with no cap, plus an additional 0.9% above $200,000 single or $250,000 married filing jointly. It applies before any income-tax bracket is even reached.
- Platform 1099s frequently do not match deposits. Gross-vs-net reporting, processing fees, refunds, and year-end timing account for most of the gap — the difference is typically a deductible expense, not missing income.
- The ~$80,000 S-Corp guideline shows up repeatedly. It is a rule of thumb, not a rule — the real answer depends on what a reasonable salary looks like for the specific role, and what payroll and a separate return cost.
- OBBBA raised the 1099-NEC threshold to $2,000 starting with tax year 2026, up from $600. Fewer forms typically arrive from smaller platforms and sponsors — the income remains reportable either way.
If You Also Trade
TraderTax’s core specialty is trader tax — prop firm payouts, wash sales, Section 1256 contracts, mark-to-market elections. A meaningful share of the people reading this cluster also trade, whether that is a personal brokerage account alongside a course business, or prop firm payouts alongside a paid Discord.
Those two income types are typically taxed differently even when the same person earns both: business income (course sales, ad revenue, sponsorships, most prop firm payouts) generally carries self-employment tax, while gains in a personal trading account are typically capital gains and do not. The Prop Firm Taxes guide and LLC vs S-Corp for Traders cover that side directly; the trader deductions guide is the trading-specific counterpart to the ad-spend and platform-fee deductions covered across this cluster.
Frequently Asked Questions
Is online business income taxed differently from trading income?
Often, yes. Course sales, ad revenue, sponsorships, subscriptions, and most prop firm payouts are generally self-employment income, subject to ordinary income tax plus 15.3% self-employment tax. Gains in a personal trading account are typically capital gains instead, reported on Schedule D and Form 8949, and are not subject to self-employment tax. Someone running an online business who also trades typically has both types on the same return.
Do I need an LLC before I start monetizing an online business?
Not usually as a first step. An LLC generally changes liability exposure under state law rather than federal tax treatment — a single-member LLC is taxed the same as a sole proprietorship by default. Most people start as a sole proprietor, form an LLC once there is something meaningful to protect, and consider the separate S-Corp election later once net income supports the added cost. See Do I Need an LLC for My Online Business? for the fuller breakdown.
When does an S-Corp election make sense for an online business?
A commonly cited starting point across this cluster is around $80,000 of net self-employment income, though the real answer depends on the numbers. Below that, payroll processing, a separate Form 1120-S return, and additional bookkeeping often absorb the savings. Above it, the split between reasonable salary and distributions typically starts to matter. See LLC vs S-Corp for Online Business Owners for the full mechanics.
What is the most commonly missed deduction across this cluster?
Two show up repeatedly. Ad spend (Meta, Google, TikTok) is typically fully deductible in the year paid and is frequently under-tracked. Gifted product from sponsors is the other — it is generally taxable at fair market value even though nothing was paid for it, which surprises most creators the first time it comes up. See Sponsorship & Brand Deal Taxes for that specific issue.
My platform 1099 does not match what hit my bank — is that a problem?
Usually not, and it is common across every platform in this cluster — YouTube, Discord/Whop, Substack, and affiliate networks all report a little differently. Gross-vs-net reporting, processing fees, refunds, and year-end timing typically explain the gap, and the difference is generally a deductible expense rather than missing income. Reconciling the 1099 against the platform payout report and the bank statement is the usual approach.
Where should I start if I have several income streams at once?
Most people start by listing each income source separately — course platform, ad revenue, affiliate commissions, sponsorships, subscriptions — since they do not all share the same tax treatment. From there, the individual guide for each income type in this cluster covers what is typically deductible and how it is usually reported. A TraderTax-matched CPA can confirm how the pieces fit together on one return.
Authoritative Source
The IRS maintains a dedicated hub for exactly this population — sole proprietors, single-member LLCs, and small online businesses. The IRS publishes the governing rules on its Small Business and Self-Employed Tax Center page. Figures and thresholds change between tax years, so it is generally worth confirming current numbers there or with a CPA rather than relying on any article, including this one.
See what an S-Corp election would typically save at your income level
The entity question is the one thing nearly every guide in this cluster eventually points back to. The calculator models the salary/distribution split at any income level; a TraderTax-matched CPA can confirm what is defensible for your actual business. Every situation varies.
Get Matched With a CPA Who Handles This →Disclaimer: Content is for informational purposes only and is not personalized tax, legal, or accounting advice. TraderTax is a platform that matches clients with independent tax professionals; it is not a tax firm. Tax outcomes vary with facts and circumstances — every situation varies. Confirm anything here with a qualified tax professional before acting on it.