Cash Equivalents: Definition, GAAP Tests, and Examples

Cash equivalents are short-term, highly liquid investments that can be converted to a known amount of cash almost immediately and carry virtually no risk of losing value. Under U.S. GAAP, an investment qualifies only if its original maturity, measured from the date the holder acquires it, is three months or less. Treasury bills, commercial paper, and most money market funds are the standard examples. Getting the label right matters because these instruments sit at the top of the balance sheet alongside actual cash, and inflating that line makes a company look more liquid than it is.

The Two GAAP Tests

ASC Topic 230 sets two conditions, and an investment has to satisfy both.¹ It must be readily convertible to a known amount of cash. And it must be close enough to maturity that interest-rate movement poses no meaningful risk to its value. An illiquid instrument that matures in two months fails the first test. A highly liquid bond with a year left fails the second.

The three-month ceiling deliberately narrows the field. A six-month CD you could technically sell on a secondary market still falls outside. The point of the label is to tell anyone reading the statements that the asset is essentially as good as cash in the bank.

What “Original Maturity” Actually Means

Original maturity refers to the time to maturity when the current holder acquired the instrument, not when it was first issued. A three-year Treasury note bought with 90 days left qualifies as a cash equivalent. That same note, bought at issuance three years earlier, does not become a cash equivalent when it enters its final 90 days.¹

This distinction catches people out. A finance officer sitting on a Treasury note that matures next month may assume the calendar has done the work. It hasn’t. The classification is locked in at the acquisition date and doesn’t shift as time passes.

Instruments That Typically Qualify

Treasury Bills

T-bills are the textbook example. The federal government issues them at maturities of four, eight, thirteen, seventeen, and twenty-six weeks. Only those acquired with 13 weeks or less to run qualify. They sell at a discount and pay no coupon, so the return is the spread between purchase price and face value. Credit risk is essentially zero. In early 2026, 13-week T-bills were yielding roughly 3.6%.²

Commercial Paper

Commercial paper is unsecured short-term corporate debt used to cover payroll, inventory, and other near-term costs. Maturities can extend up to 270 days, though the average sits around 30 days.³ Only paper acquired with an original maturity of three months or less qualifies. Issuers are usually large, well-rated corporations, so default risk is low but not zero, and a credit downgrade can change the picture quickly.

Money Market Funds

Retail and government money market funds still use a stable net asset value, holding the share price at $1.00.⁴ Institutional prime money market funds have to use a floating NAV, a rule the SEC adopted in 2014 after the 2008 financial crisis exposed weaknesses in the stable-price model.⁵

A money market fund can lose its cash-equivalent status if credit concerns arise, the NAV drops significantly, or the fund imposes liquidity fees or redemption gates. Any of those conditions undermines the “readily convertible” prong.

Short-Term CDs

A CD is a cash equivalent only if its original maturity is three months or less. Most CDs run six months to five years, which puts most CDs outside the definition; they belong on the balance sheet as short-term investments or held-to-maturity securities.¹

What Does Not Qualify

Knowing the exclusions matters as much as knowing the inclusions, because the same mistakes come up over and over in practice.

Stocks and other equity securities. No equity qualifies, no matter how liquid. A blue-chip share you can sell in seconds still carries price risk.
Long-term CDs and bonds. A 12-month CD or a two-year Treasury note bought at issuance is not a cash equivalent, even if a secondary market exists. The original maturity is too long.
Auction rate securities. Periodic auctions may provide liquidity, but the stated maturity typically runs well past three months, and auction frequency doesn’t substitute for actual maturity in the GAAP analysis.
Variable rate demand notes. Unless puttable to the issuer within three months of acquisition, these fall outside the definition.
Cryptocurrency and digital assets. They fail both prongs. Values swing sharply, and the amount of cash you can realize is unpredictable.

The common thread is uncertainty. If there is meaningful doubt about either the amount of cash you’ll receive or how quickly you’ll receive it, the asset isn’t a cash equivalent.

Where Cash Equivalents Sit on the Financial Statements

On the balance sheet, cash equivalents are combined with physical currency into a single line: “Cash and Cash Equivalents.” It sits at the top of current assets because these are the most immediately available resources the entity holds.¹ Lenders and analysts look at this figure first when they size up short-term obligations. A healthy balance signals liquidity; a thin one raises solvency concerns.

Misclassification inflates that line. Auditors notice, and for public companies, so does the SEC. Restating financials to correct classification errors is expensive and damages investor trust.

On the statement of cash flows, the combined cash-and-equivalents total serves as the beginning and ending balance for each period. The statement tracks money through operating, investing, and financing activities and reconciles the flows to the change in that total. Buying and selling cash equivalents is treated as ordinary cash management, so those trades don’t appear as separate investing line items.¹

Restricted Cash Is Not the Same Thing

Cash that an entity holds but cannot freely spend, whether because of a contractual obligation, court order, or regulatory requirement, is restricted cash. Escrow deposits, loan collateral, and bond-covenant reserves are typical examples. It doesn’t belong in the unrestricted “Cash and Cash Equivalents” line because it doesn’t represent spending power the entity can use at will.¹

Restricted cash appears on its own line, current if the restriction lifts within 12 months, long-term otherwise. After FASB issued ASU 2016-18, restricted cash and restricted cash equivalents must be included in the beginning and ending totals that the cash flow statement reconciles, and transfers between unrestricted and restricted cash are not treated as cash flow activities. The nature of the restrictions has to be disclosed in the footnotes.

Tax Treatment of the Earnings

Earnings from cash equivalents are taxable, but the instrument determines both the reporting form and whether state tax applies.

Treasury bills. The discount earned at maturity is subject to federal income tax but exempt from all state and local income taxes, which makes T-bills especially attractive in high-tax states.⁶
Money market fund distributions. Taxable funds report earnings as ordinary dividends on Form 1099-DIV, even though the underlying income functions like interest. These are taxed as ordinary income at the federal and state level. Funds holding only Treasury or government securities may pass through the state exemption; check the prospectus.
Commercial paper. Interest is ordinary income at both federal and state levels. No special exemptions.
Certificates of deposit. CD interest outside a tax-advantaged account is ordinary income, reported on Form 1099-INT.

Yields are modest, so tax treatment alone rarely drives instrument choice. On large institutional balances, though, small differences in after-tax yield compound.

When the “No Loss” Premise Fails

Cash equivalents are supposed to hold their value. Almost always they do, but “almost” has stung investors before. In September 2008, the Reserve Primary Fund announced its shares had fallen to 97 cents after heavy losses on Lehman Brothers debt.⁷ “Breaking the buck” triggered a run across the industry and led directly to the SEC’s 2014 floating-NAV rule for institutional prime funds.⁵

Money market funds are not FDIC-insured. If a brokerage firm holding the shares fails, SIPC covers money market fund shares as securities up to $500,000 per customer, with a $250,000 sublimit on cash claims.⁸ SIPC only applies when a brokerage firm is liquidated. It does not cover investment losses. If a fund’s NAV drops because its portfolio deteriorated, SIPC will not make you whole. That risk profile is why treasurers unwilling to accept any principal risk lean on T-bills over commercial paper or prime money market funds.

How GAAP and IFRS Diverge

Companies reporting under IAS 7 use a similar definition, but a few practical differences matter when comparing statements.

Bank overdrafts. Under IFRS, overdrafts that form part of a company’s cash management may be included in cash and cash equivalents on the cash flow statement. GAAP treats overdrafts as liabilities.
Restricted cash. GAAP requires restricted cash to be included in the beginning and ending totals reconciled on the cash flow statement. IFRS has no comparable requirement, and restricted cash is generally excluded from that reconciliation unless it’s classified as cash and equivalents on the balance sheet.
Interest and dividends received. GAAP classifies them as operating activities. IFRS lets companies choose between operating and investing.

A company reporting under IFRS with significant overdrafts netted against cash can look more liquid than an otherwise identical GAAP filer. Anyone comparing across frameworks has to adjust for that before drawing conclusions.

1
Deloitte Accounting Research Tool (DART). Definition of Cash and Cash Equivalents
2
U.S. Department of the Treasury. Daily Treasury Bill Rates
3
Board of Governors of the Federal Reserve System. Commercial Paper Rates and Outstanding Summary
4
U.S. Securities and Exchange Commission. Memorandum on Money Market Funds
5
U.S. Securities and Exchange Commission. SEC Adopts Money Market Fund Reform Rules
6
Internal Revenue Service. Topic No. 403, Interest Received
7
Federal Reserve Bank of New York. Twenty-Eight Money Market Funds That Could Have Broken the Buck
8
Securities Investor Protection Corporation (SIPC). What SIPC Protects