Bookkeeping · Foundations · Brief · Intro level
Revenue, income, and cash: three words that are not synonyms
Revenue is what you earn from customers, income is what remains after expenses, and cash is what actually sits in the bank. A business can be high on any one and dangerously low on the others.
Revenue is what customers pay you for what you sell — the top line. Income is what is left of revenue after every expense — the bottom line. Cash is the balance actually in the bank, which obeys neither. Small-business conversation uses the three interchangeably; the books cannot, and the differences are where businesses get surprised.
One quarter, three answers
A landscaping company's quarter: 120,000 billed and earned, 95,000 of expenses, but 30,000 of the billings uncollected, a 12,000 mower bought outright, and 8,000 of loan principal paid down.
Worked example in the text; the cash figure assumes collections of 90,000 against 85,000 of expenses paid in cash plus the mower and principal.
Healthy revenue, respectable income, shrinking bank account — simultaneously, and with entirely correct books. The reconciling items are the point:
Why income and cash diverge.
| Item | Affects income? | Affects cash? |
|---|---|---|
| Invoice issued, unpaid | Yes (revenue earned) | No |
| Customer pays old invoice | No | Yes |
| Mower purchased | Only via depreciation over years | Yes, all at once |
| Loan principal payment | No (not an expense) | Yes |
| Loan proceeds received | No (not income) | Yes |
| Owner draw | No | Yes |
| Depreciation | Yes | No |
Where each number lives
- Revenue — the income statement's first line, credited when earned:
| Account | Debit | Credit |
|---|---|---|
| Accounts receivable | 30,000 | |
| Landscaping revenue | 30,000 |
Real revenue, zero cash. It becomes cash only when collected.
- Income — the income statement's last line: revenue minus expenses. It is computed, not posted; at year-end it folds into retained earnings.
- Cash — the bank account balance, which moves for many reasons that never touch the income statement:
| Account | Debit | Credit |
|---|---|---|
| Cash | 8,000 | |
| Owner contributions | 8,000 |
The bank grew 8,000. Revenue and income are unchanged — this is the owner's money, not the customers'.
Whether revenue is recorded at invoicing or at payment depends on your basis; accrual vs. cash basis walks through both. On accrual books the three numbers separate cleanly; on cash books revenue and cash receipts blur together, which is convenient right up until it isn't.
What to do next
- Say the sentence that matches each report: revenue answers "how much did we sell," income answers "did selling it pay," cash answers "can we make payroll Friday."
- Each month, put the profit and loss next to the bank balance change and name the reconciling items — receivables, principal, draws, asset purchases.
- Never let a deposit into the books without a source. The three words stay separate only if the postings do.
Frequently asked questions
- What is the difference between revenue and income?
- Revenue is the top line: everything earned from selling goods and services before any costs. Income (profit or net income) is the bottom line: revenue minus all expenses. A business with 500,000 of revenue and 490,000 of expenses has 10,000 of income. Using the words interchangeably overstates or understates by the whole expense base.
- Why is my profit high but my bank account empty?
- Because income is not cash. Profit counts revenue when earned, even if customers haven't paid, and excludes cash outflows that aren't expenses — loan principal, owner draws, equipment purchases, inventory buildup. A profitable business whose cash sits in receivables and inventory, while payments go out for principal and draws, runs dry on paper-perfect books.
- Is a bank deposit always revenue?
- No. Deposits include loan proceeds, owner contributions, customer prepayments, refunds, and transfers between accounts — none of which are revenue. Booking every deposit as sales overstates revenue and, at tax time, overstates taxable income. Each deposit needs a source before it gets an account.