Accounting 100FoundationFree

No jargon. No prior knowledge. Just the fundamentals.

Understand what financial statements are and what they're trying to tell you. Every concept from Accounting Made Simple — from the accounting equation through GAAP and accruals — built from scratch.

16 lessons3h 24m totalStart Level 100

Accounting Made Simple by Mike Piper

Lessons

16 lessons
01
Why Accounting Is the Language of Business

Why every business transaction leaves a financial trace — and why investors who can read that record have a structural edge over those who can't.

12 min
02
The Accounting Equation: Assets = Liabilities + Equity

The single identity that every financial statement is built on. Understand why it always holds — and what it really means for owners' equity.

12 min
03
The Balance Sheet Part I — Assets

Cash, receivables, inventory, and property: what each asset account represents and how current vs. long-term classification signals liquidity.

14 min
04
The Balance Sheet Part II — Liabilities and Equity

Accounts payable, notes payable, and owners' equity: the funding side of the accounting equation and what each component tells you about a company's obligations.

14 min
05
Reading the Balance Sheet — Current vs. Long-Term, Two Periods

How to read a real two-period balance sheet: the 12-month classification rule, what's changed year-over-year, and the early warning signs hidden in the comparison.

15 min
06
The Income Statement — Revenue to Gross Profit

Revenue minus cost of goods sold equals gross profit. What each line means, why gross profit margin is the first number analysts look at, and the t-shirt vs. tax return example.

14 min
07
The Income Statement — Operating Income to Net Income

Operating expenses, non-operating items, and the path from gross profit to net income. Why operating income often predicts future earnings better than net income.

14 min
08
Statement of Retained Earnings — The Bridge

The shortest financial statement does the most important linking work. How net income flows from the income statement, through retained earnings, into the balance sheet.

10 min
09
Cash Flow Statement — Operating Activities

The operating section reconciles net income to real cash. Why it's the hardest statement to manipulate — and what it tells you that the income statement doesn't.

14 min
10
Cash Flow Statement — Investing and Financing Activities

Capex, acquisitions, debt issuance, dividends: the investing and financing sections reveal how a company is deploying and funding its capital.

13 min
11
How the Three Statements Connect

Net income → retained earnings → balance sheet. Cash flows tie to both. See the full system in one place — the connective tissue most beginners never learn.

12 min
12
What Is GAAP and Who Must Follow It

Generally Accepted Accounting Principles: who sets them, who must follow them, and why consistency rules are what make financial statements comparable across companies.

10 min
13
Core GAAP Assumptions — Historical Cost, Matching, Materiality

Historical cost, matching principle, materiality, entity assumption, money unit: the conceptual bedrock that explains why accountants record transactions the way they do.

12 min
14
Debits, Credits, T-Accounts, and the Trial Balance

The double-entry system demystified. Every transaction has two sides — understand the mechanics so the structure of any financial statement makes intuitive sense.

13 min
15
Cash vs. Accrual — Prepaid Expenses and Unearned Revenue

The cash method vs. the accrual method: why most businesses must use accrual, and how prepaid expenses and unearned revenue are the two cases that trip up new readers.

13 min
16
Level 100 Quiz

Ten questions spanning the accounting equation, the four statements, GAAP assumptions, and the cash vs. accrual distinction.

12 min