Commercial paper is a cash equivalent when the buyer acquires it with three months or less remaining until maturity. That single 90-day threshold, set by FASB Accounting Standards Codification Topic 230, decides whether the note sits inside “Cash and Cash Equivalents” at the top of the balance sheet or gets pushed down into short-term investments. Nothing else about the paper, not its credit rating, not how actively it trades, changes the answer.
The Two Tests Behind the Rule
ASC 230 defines a cash equivalent as a short-term, highly liquid investment that meets two conditions. It must be readily convertible to a known amount of cash, and it must be so close to maturity that interest rate changes pose insignificant risk to its value.1Deloitte Accounting Research Tool (DART). Definition of Cash and Cash Equivalents Commercial paper, along with Treasury bills, money market funds, and federal funds sold, is one of the instruments the codification names as commonly meeting both.
The “known amount of cash” test knocks out anything whose redemption value swings. The “insignificant risk” test knocks out longer-dated debt, because a note with six months left reacts to rate moves in a way a two-week note does not. That is the reasoning behind the 90-day cutoff: instruments that short trade at close to face value regardless of what rates do, so they behave like cash. IAS 7 applies broadly the same requirements under IFRS.
How the 90-Day Rule Actually Works
The maturity is measured from the date your company acquired the paper, not from when it was originally issued. ASC 230 uses the phrase “original maturities of three months or less,” which is the source of a common misreading. The codification defines the term this way: “Original maturity means original maturity to the entity holding the investment.”
That definition changes how the rule plays out. Buy 180-day commercial paper at issuance and it is not a cash equivalent, even after you have held it for four months and only 60 days remain. Buy that same paper on the secondary market with 60 days left and it is a cash equivalent from the moment you acquire it. The test locks in at the acquisition date and does not get re-run at each balance sheet date.
The same principle applies outside commercial paper. A three-year Treasury note purchased on the secondary market with 90 days remaining qualifies. Held by the original buyer since issuance, it never does, no matter how little time is eventually left.
When Commercial Paper Does Not Qualify
Three situations pull commercial paper out of the cash equivalent line even when it looked like a safe bet.
The most obvious is a purchase maturity longer than 90 days. A newly issued 180-day note is a short-term investment, not a cash equivalent, and the top-tier credit rating of the issuer does not change that. Commercial paper is exempt from SEC registration up to 270 days under Section 3(a)(3) of the Securities Act, and issuers use that full window, so paper outside the 90-day box is common.
Credit deterioration after purchase is the trap that catches finance teams more often than the maturity rule. If the issuer’s financial condition weakens enough that you can no longer be confident of collecting the full face value on time, the paper stops meeting the ASC 230 definition. That evaluation is ongoing. A note that clearly qualified on the day you bought it can lose its status weeks later after a downgrade or a liquidity scare, and the holder should reclassify it into short-term investments.
Foreign currency exposure is the third case. Commercial paper denominated in a currency other than the holder’s functional currency carries exchange rate risk that can undercut the “readily convertible to known amounts of cash” requirement.
What the Classification Changes on the Balance Sheet
Qualifying paper appears in “Cash and Cash Equivalents.” Paper that misses the cutoff shows up in “Short-term Investments” or “Marketable Securities.” Companies disclose their classification policy in the footnotes, usually with wording along the lines of: “The Company considers all short-term investments with an original maturity of three months or less to be cash equivalents.”2SEC EDGAR Filing. Footnotes to Financial Statements
The line item matters because of one ratio in particular. The cash ratio divides cash and equivalents by current liabilities, so pushing a block of commercial paper into short-term investments shrinks the numerator and makes the company look less liquid to anyone tracking that number. The quick ratio pulls in both cash equivalents and marketable securities, so shifting between those two categories leaves it unchanged. The underlying financial position has not moved at all; only the presentation has.
Money Market Funds Follow a Different Threshold
Most individual investors hold commercial paper indirectly through money market funds, and the fund rules should not be confused with the ASC 230 rule. SEC Rule 2a-7 governs what a money market fund can own, and its limits are set differently:
- No single holding may have a remaining maturity above 397 calendar days.
- The fund’s dollar-weighted average maturity cannot exceed 60 days.
- The dollar-weighted average life of the portfolio cannot exceed 120 days.
- Every holding must present minimal credit risk under ongoing board review.
All four come from the same regulation.3eCFR. 17 CFR 270.2a-7 – Money Market Funds A money market fund can therefore hold commercial paper with well over 90 days left, and that paper is not a cash equivalent on the issuing company’s books. The fund shares themselves, on the other hand, are typically treated as cash equivalents by investors who own them, because the shares can be redeemed on demand. The 397-day fund limit and the 90-day balance sheet limit answer different questions and do not translate into each other.