Subjects and lessons to explore.

Law

Accounting · Foundations

Accrual Accounting

8 min read 5 practice questions
8 key termsSourcesReport an error
Want it in plain words first? Jump to Eli explains — the same idea, no jargon.
On this page 9 sections
  1. In 30 seconds
  2. Why this matters
  3. The college version
  4. Eli explains
  5. Worked example
  6. Key takeaway
  7. Quick check
  8. Study tools
  9. Sources & references

In 30 seconds

records revenue when it is earned and expenses when they are incurred, no matter when cash changes hands — this lesson anchors its definition on OpenStax's Principles of Accounting. A painter who finishes a job in September records the revenue in September even if the customer pays in October, and the pairs that revenue with the costs that produced it. requires accrual accounting because it gives a truer picture of performance — and it is also more complicated.

Why this matters

Readers of financial statements need to know what a business actually accomplished in a period, not just when money happened to move. If revenue were recorded only when cash arrived, a December full of work would look empty and a January with no work would look busy. Accrual accounting fixes that: each period's statements show the work done and the costs that went with it. Lenders, investors, and managers depend on that honest picture, and U.S. accounting standards (GAAP) require it for most businesses. Understanding accrual accounting also unlocks the difference between profit and cash — a distinction behind almost every real business decision, from hiring to borrowing.

The college version

What accrual accounting is

OpenStax's Principles of Accounting states the rule directly: accrual basis accounting prescribes that revenues and expenses are recorded in the in which they were earned or incurred, no matter when cash receipts or payments occur. CFI's Accrual Accounting guide opens with the same idea — recording earned revenues or incurred expenses regardless of whether cash is exchanged. In plainer words, accrual accounting records things when they happen, not when money moves. The rule has two halves. Revenue is recorded when it is earned: the business has delivered the product or service, so the customer owes for it. Expenses are recorded when they are incurred: the business has used up something of value, so it owes for that too. Cash is not ignored — it is tracked carefully — but it is tracked separately. Whether the customer has paid yet, or the business has paid its suppliers yet, does not decide when the event enters the books.

Revenue recognition: earned, not paid

The tells a business to record revenue in the period it earns it, and revenue counts as earned only once a product or service has been provided. OpenStax adds that there does not have to be a correlation between when cash is collected and when revenue is recognized: a customer may not pay on the day of the service, yet the company records the revenue as earned because the work happened. Here is an original example. Harborview Painting finishes painting a house on September 24 and sends a bill for $4,800; the homeowner pays on October 9. The revenue belongs in September, because that is when the painting was done. A system that waited for cash would show no revenue in September for work actually completed, and $4,800 in October for a month in which no painting happened.

The matching principle

The expense recognition principle, also called the matching principle, states that expenses must be matched with the associated revenues in the period in which those revenues were earned. OpenStax warns that a mismatch makes statements unreliable: expenses recorded separately from the revenues they generated would understate net income in one period and overstate it in another. Return to Harborview Painting. The September job used $1,100 of paint and materials bought on credit in August, and the crew's wages of $1,650 were paid on October 1. Both are September expenses: the paint helped produce September's revenue, and the crew worked in September. The $4,800 of revenue and the $2,750 of expenses land on the same September income statement, which is what makes September's profit of $2,050 meaningful.

Accrual versus cash: when things count versus when money moves

is the simpler alternative: transactions are not recorded until there is an exchange of cash. OpenStax notes that this method can delay or accelerate revenue and expense reporting until cash receipts or outlays occur, and that it can be simpler to track. Take Riverbend Tutoring. In December, Marisol finishes ten sessions for a school district and bills $1,500, paid in January; she also receives the December electricity bill for $180, paid in January. Accrual books show December revenue of $1,500 and December expense of $180, because the work and the electricity use both happened in December. Cash books show nothing for December, because no cash moved; January would show both amounts, making a month with no tutoring look like the busy one. The contrast in one line: accrual records when things count; cash records when money moves. Cash accounting has its own lesson; here it serves as the contrast that shows what accrual is for.

Why accrual is the standard

Companies, public or private, that use US GAAP or IFRS prepare their financial statements using the rules of accrual accounting, as OpenStax states. The reason is that the accrual method is considered to better match revenues and expenses, and it standardizes reporting information for comparability — which matters to external users trying to make investment or lending decisions, and to internal users making decisions about performance, budgeting, and growth. CFI puts the same argument in plainer terms: accrual accounting provides a more accurate picture of a company's true financial position, while cash accounting can offer a misleading picture when unpaid expenses and outstanding receivables are missing from the statements. The SEC's Investor.gov glossary defines GAAP as the accounting standards, conventions, and rules companies use to measure their financial results. The point of the standard is trust: statements prepared on the same rules, with each period's results matched to the activity that produced them, can be compared and relied on.

The honest framing: more accurate, and more complicated

Accrual accounting wins because it is truer, and the honest framing is that truer costs more. OpenStax itself notes that cash basis accounting can be simpler to track, and CFI observes that accrual accounting becomes especially valuable in large and complex businesses — precisely because it asks more of the people keeping the books. Deciding when revenue is earned, which costs belong to which period, and what to do when amounts are uncertain all require judgment. No receipt announces 'this expense belongs to March.' The trade-off is plain: accrual accounting gives readers a more accurate picture of performance, and it demands more care, more estimates, and more decisions. That is not a flaw to hide; it is the reason the work exists.

Eli, the EliExplains learning guide

Eli explains

The same idea, in plain words

Explain it like I’m 10

Accrual accounting means recording things when they happen, not when money moves. If you tutor a student in December but get paid in January, December is when the revenue counts — you did the work in December. If you use electricity all December but pay the bill in January, December is when the cost counts. Cash accounting, by contrast, waits for the money: it would show the revenue in January and the electricity bill in January too, making January look like the month you did all your work. Accrual keeps each month's report honest: work in December, costs in December, results in December.

Picture it like this

Think of a scoreboard at a basketball game. Points count the moment the ball goes through the hoop, not when the tickets are sold or the players are paid. The score at halftime tells you what happened on the court in the first half. Accrual accounting keeps the same kind of score for a business: revenue and expenses are recorded when the game — the work — happens, so each period's score reflects what the business actually did in that period.

Where the picture stops working

The scoreboard analogy has limits. In basketball, scoring is exact and instant; in accrual accounting, deciding when revenue is earned and which expenses belong to a period often takes judgment and estimates. And the score accrual produces — profit — is not cash you can spend. A team can win on the scoreboard and still have an empty wallet, just as a profitable business can run short of cash.

Worked example

Riverbend Tutoring is a small business run by Marisol. On December 20 she finishes ten tutoring sessions for a school district and bills $1,500; the district pays on January 12. On December 28 she receives the December electricity bill for $180 and pays it on January 5. Under accrual accounting, December shows revenue of $1,500 — the work was done in December — and electricity expense of $180 — the power was used in December — for a December profit of $1,320. Under cash accounting, December shows no revenue and no expense, because no cash moved; January would show both, making a month with no tutoring look like the profitable one.

Key takeaway

Accrual accounting records revenue when earned and expenses when incurred, so each period's statements match the work actually done — a truer picture of performance than cash accounting, and a more demanding one.

Quick check

3 questions here, of 5 in this lesson’s practice set. Answers stay hidden until you check.

Question 1 of 3foundational

Under accrual accounting, when does a business record revenue?

Choose an answer, then check it.
Question 2 of 3foundational

What does the matching principle require?

Choose an answer, then check it.
Question 3 of 3intermediate

On December 28, Riverbend Tutoring received the December electricity bill for $180 and paid it on January 5. Under accrual accounting, in which month is the $180 recorded as an expense?

Choose an answer, then check it.
Practice all 5

Keep learning

Ready to build on this? Continue to the next lesson.

Practice this lesson
Study tools & related lessonsYou’ll learn to · Common mistakes · Easily confused · Key vocabulary · Related

You’ll learn to

  • Define accrual accounting as recording revenue when earned and expenses when incurred, regardless of cash movement, using the working definition from OpenStax's Principles of Accounting and corroborated by CFI.
  • Explain the revenue recognition principle: revenue is recorded in the period it is earned, not the period it is paid.
  • Explain the matching principle: expenses are recorded in the same period as the revenues they helped produce.
  • Distinguish accrual accounting from cash accounting: when things count versus when money moves.
  • Explain why accrual accounting is the standard under GAAP: it matches revenues and expenses to the right periods and makes statements comparable.
  • Describe the honest framing: accrual accounting is more accurate and also more complicated.

Common mistakes

  • Thinking revenue is recorded when payment arrives.

    Revenue is recorded when it is earned — when the product or service has been provided — even if the customer pays weeks later. Waiting for cash is cash accounting, not accrual accounting.

  • Thinking the matching principle is about paying bills on time.

    Matching is about recording an expense in the same period as the revenue it helped produce, not about when the bill is paid.

  • Treating accrual profit as cash in the bank.

    Accrual profit measures performance; the cash may arrive or leave later. A business can show a profit and still be short of cash.

  • Assuming any method is fine for financial statements.

    Statements prepared under GAAP use accrual accounting. Cash basis is a simpler alternative that some nonpublic companies may use, and it can give a misleading picture of performance.

  • Believing accrual accounting is just adding things up.

    Accrual accounting also involves judgment — deciding when revenue is earned and which costs belong to a period. More accurate does not mean simpler.

Easily confused

Accrual accounting vs. Cash accounting

Accrual records revenue when earned and expenses when incurred; cash accounting records transactions only when cash changes hands. One tracks what happened, the other tracks money movement.

Accrued revenue vs. Accrued expense

Accrued revenue is income earned but not yet collected; an accrued expense is a cost incurred but not yet paid. Both are accrual accounting's way of recording activity before cash moves.

Profit (accrual) vs. Cash balance

Profit is the period's revenues minus the expenses matched to them; the cash balance is what the business can actually spend. They differ precisely because of timing.

Key vocabulary

Accrual accounting
A method of accounting that records revenue when it is earned and expenses when they are incurred, regardless of when cash is received or paid; this lesson anchors its definition on OpenStax's Principles of Accounting.
Revenue recognition principle
The rule that revenue is recorded in the period it is earned, when the product or service has been provided, even if the customer has not yet paid.
Matching principle
The rule, also called the expense recognition principle, that expenses are recorded in the same period as the revenues they helped produce.
Accrued revenue
Revenue that has been earned but not yet collected, such as work completed and billed but still unpaid at period end.
Accrued expense
A cost that has been incurred but not yet paid, such as electricity used in December but paid for in January.
Cash basis accounting
A method of accounting that records transactions only when cash is received or paid out.
GAAP
Generally Accepted Accounting Principles, the accounting standards, conventions, and rules that U.S. companies use to measure and report their financial results.
Accounting period
The stretch of time, often a month, quarter, or year, over which a business measures and reports its results.

Sources & references

  1. Principles of Accounting, Volume 1: Financial Accounting, Section 3.1: Describe Principles, Assumptions, and Concepts of Accounting and Their Relationship to Financial Statements — OpenStax, Rice University
  2. Principles of Accounting, Volume 1: Financial Accounting, Section 4.1: Explain the Concepts and Guidelines Affecting Adjusting Entries — OpenStax, Rice University
  3. Accrual Accounting — Definition, Guide, How it Works — Corporate Finance Institute (CFI)
  4. Investor.gov Glossary (SEC) — U.S. Securities and Exchange Commission, Investor.gov

EliExplains lessons are original prose written from the open, credible references above. See Copyright & Licensing.

Researched 2026-08-21

Educational content only. It is not medical, legal or professional advice. Found an error? Tell us.