Day Trading Basics

Day Trading Basics covers the practical knowledge that sits around every trade rather than the trade setups themselves: how trading profits are taxed, cash and margin accounts, what a trade really costs, position sizing and risk math, algorithmic and AI trading, and the market rules that change how stocks trade.

These topics decide how much of a winning trade you keep and how much a losing trade can cost, whichever strategy you use.

Each guide takes one topic and explains it in plain English, with examples where they help. Every guide in the category is listed on this page, newest first.

The Beginner's Guide is a course you read in order, while Day Trading Basics is a library of standalone guides you read when a topic comes up.

The Beginner's Guide has 101 short lessons in ten modules, from market foundations and your trading setup through risk management, psychology and going live, so a new trader sees the whole picture once. Day Trading Basics goes deeper on single topics that matter at particular moments, such as tax rules before filing season, account types before opening a brokerage account, or margin rules after a regulation change.

The two work together: a course lesson introduces a topic, and a basics guide on the same topic covers the details.

Strategies guides explain how to trade a setup, and Day Trading Basics guides explain the rules and costs that apply to every setup.

A strategy guide covers when to enter, where to place a stop and when to take profit on a particular pattern. A basics guide covers what happens around that trade: the commission, spread and slippage it pays, how its profit or loss is taxed, whether your account type allows it, and how many shares to buy for the risk you set.

You need both, because a strategy that looks profitable on a chart can still lose money once trading costs, taxes and position size are counted.

Start with the Beginner's Guide, then read a Day Trading Basics guide when you reach the step it covers.

A practical order is cash and margin accounts before opening a brokerage account, trading costs and position sizing before your first live trade, and the tax guides before the end of your first trading year, while year-end decisions such as tax-loss harvesting can still make a difference.

The guides do not depend on each other, so if you already trade you can go straight to any topic in the list.

Partly. The tax and account guides follow U.S. rules, while the guides on trading math, trading costs and automation apply in any market.

Tax guides are based on U.S. federal tax law and IRS rules, and account guides follow U.S. brokerage rules set by FINRA and the SEC, such as margin requirements and settlement times. Traders in other countries face different tax treatment and account rules, so for them those guides are background, not a substitute for local rules.

Position sizing, reward-to-risk math, spreads, slippage and how trading algorithms work are the same wherever you trade.

No. The guides are general education about how the rules work, not advice for your personal situation.

Tax outcomes depend on details such as your filing status, other income, the instruments you trade, whether you qualify for trader tax status and which elections you have made, so the same trade can be taxed differently for two traders.

Use the guides to understand the rules and prepare better questions, and make decisions such as the mark-to-market election or forming a business entity with a CPA or tax professional who knows trader taxation.

New guides are added as topics come up, including when a rule change affects day traders, and each new guide appears at the top of this page.

The list is sorted newest first and every card shows its publish date, so you can see what has been added since your last visit. Recent guides have covered changes such as the new intraday margin rules and a new exchange rule for large IPOs.

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