The cash receipts and disbursements method of accounting records income in the year you actually receive the money and records expenses in the year you actually pay them. Most sole proprietors, partnerships, and S corporations use it because it is simple to maintain and gives you real control over when income lands on your tax return. The timing of a single check at year-end can shift thousands of dollars of tax from one year to the next.
How the Cash Method Works
The cash method is one of the permissible accounting methods listed in the Internal Revenue Code for computing taxable income.1Office of the Law Revision Counsel. 26 USC 446 – General Rule for Methods of Accounting The rule is straightforward: revenue is reported in the year payment arrives, and expenses are deducted in the year payment goes out. A landscaping company that finishes a job in November but doesn’t receive the check until January reports that income in January’s tax year.
The accrual method does the opposite. Revenue is recorded when earned and expenses when owed, no matter when cash moves. That same landscaper on accrual would report the November income even though the money has not arrived. Accrual gives a more complete picture of the business at any point in time, but it is more complex and can force you to pay tax on money you haven’t collected.
Whatever method you pick must clearly reflect your income. If the IRS decides it doesn’t, the agency can recompute your taxable income using whichever method it believes does.1Office of the Law Revision Counsel. 26 USC 446 – General Rule for Methods of Accounting If you run more than one business, you can use a different method for each.
Who Can Use the Cash Method
Most sole proprietors, partnerships, and S corporations use the cash method without restriction. Eligibility becomes a real question for C corporations and for partnerships that have a C corporation as a partner. Those entities are generally barred from the cash method unless they pass the gross receipts test.2Office of the Law Revision Counsel. 26 USC 448 – Limitation on Use of Cash Method of Accounting
The gross receipts test looks at whether a business’s average annual gross receipts over the prior three tax years stay below a statutory threshold. The base amount is $25 million, adjusted annually for inflation and rounded to the nearest $1 million.2Office of the Law Revision Counsel. 26 USC 448 – Limitation on Use of Cash Method of Accounting The threshold has climbed to roughly $30–31 million in recent years, and the IRS publishes the exact inflation-adjusted figure for each tax year in its annual Revenue Procedures. A business that exceeds the threshold must switch to the accrual method. Related entities don’t get to measure in isolation. The IRS aggregates the gross receipts of businesses under common control when applying the test, so an owner who assumes each company qualifies on its own can be caught out when the combined figure crosses the line.3Internal Revenue Service. FAQs Regarding the Aggregation Rules Under Section 448(c)(2)
Two groups get special treatment. A qualified personal service corporation — a C corporation whose work is substantially all in health, law, engineering, architecture, accounting, actuarial science, performing arts, or consulting, and whose stock is substantially owned by employees performing those services — can use the cash method regardless of gross receipts.2Office of the Law Revision Counsel. 26 USC 448 – Limitation on Use of Cash Method of Accounting Tax shelters, by contrast, are always prohibited from using the cash method, no matter how small they are. The term covers any enterprise whose interests were offered for sale in a registered offering, any syndicate, and any arrangement designated as a tax shelter under the accuracy-related penalty rules.4Office of the Law Revision Counsel. 26 USC 461 – General Rule for Taxable Year of Deduction
Businesses That Sell Inventory
Historically, any business whose income depended on selling merchandise had to keep inventories and use the accrual method for purchases and sales.5eCFR. 26 CFR 1.471-1 – Need for Inventories Matching cost of goods against the revenue they produce was treated as inherently accrual work.
Small businesses that meet the gross receipts test now get an exception. They can treat inventory as non-incidental materials and supplies, deducting the cost when the items are sold or paid for rather than keeping formal inventory accounts.5eCFR. 26 CFR 1.471-1 – Need for Inventories A small retailer or online seller can stay on the cash method without the overhead of full inventory accounting.
When Income Counts as Received
Under the cash method, income hits your books in the year you actually receive it. “Receive” covers the obvious cases: cash in hand, a check deposited, or property transferred to you.6Internal Revenue Service. Publication 538 – Accounting Periods and Methods
It also covers less obvious ones through a doctrine called constructive receipt. Income is constructively received when it is credited to your account, set apart for you, or otherwise made available so you could draw on it at any time. The test is whether your control over the money faces substantial limitations or restrictions. If it does not, the IRS treats you as having received it even if you left the check sitting in your mailbox.7GovInfo. 26 CFR 1.451-2 – Constructive Receipt of Income
In practice: a client mails a check on December 28 and it arrives December 30. If you wait until January 3 to deposit it, the income still belongs to December because the funds were available to you before year-end. This is where the IRS most often catches cash-method taxpayers trying to push income into a later year.
When Expenses Count as Paid
The expense side is simpler. You deduct a cost in the year you pay it. Rent, utilities, wages, and supplies are deductible when the money leaves your hands, not when the bill arrives.
Prepaid Expenses and the 12-Month Rule
Prepaid expenses add a wrinkle. Pay in advance for something you’ll use well into the future and you generally cannot deduct the whole amount up front; the deduction has to match the period of benefit.
The 12-month rule carves out an exception. You can deduct a prepaid cost in full when the benefit does not extend beyond 12 months from the date you first receive it, or beyond the end of the tax year following the year of payment, whichever is shorter.8eCFR. 26 CFR 1.263(a)-4 – Amounts Paid To Acquire or Create Intangibles A 12-month business insurance policy paid in full on October 1 qualifies. A 24-month policy paid on the same date does not; the portion covering the second year must be capitalized and deducted later.
Capital Expenditures
The cash method does not let you deduct the full price of a major asset in the year you buy it. Equipment, vehicles, buildings, and other property with a useful life extending substantially beyond the current year must be capitalized and depreciated over time, usually under the Modified Accelerated Cost Recovery System, and reported each year on Form 4562.9Internal Revenue Service. Instructions for Form 4562
Two provisions can shorten that timeline considerably. The Section 179 election lets qualifying businesses expense a large portion of asset costs in the year of purchase. Bonus depreciation, restored to 100 percent for property acquired on or after January 20, 2025, allows businesses to deduct the entire cost of qualifying assets in the first year.9Internal Revenue Service. Instructions for Form 4562 Between the two, many small businesses can fully deduct equipment purchases in the year they pay for them.
Bad Debts: A Common Surprise
One limitation catches cash-method taxpayers off guard. You generally cannot deduct unpaid invoices as bad debts. If a client stiffs you on a $10,000 bill, you might assume you can write it off, but the IRS only allows a bad debt deduction for amounts you previously included in income or loaned out as cash.10Internal Revenue Service. Topic No. 453, Bad Debt Deduction Under the cash method you never reported the unpaid invoice as income, so there is nothing to deduct. The loss is real but invisible to the tax system.
The same reasoning applies to unpaid wages, rent, and interest owed to you. The only bad debt deduction available to most cash-method taxpayers involves actual loans of cash that become uncollectible. Accrual taxpayers have already reported the income and can claim the deduction when the debt goes bad.
Why Businesses Choose the Cash Method
The biggest draw is control over the timing of taxable income. Near year-end, a service business can delay invoices until January to push income into the next tax year, or accelerate expense payments into December to pull deductions into the current year. Accrual businesses cannot do this because income is recognized when earned, not when collected.
The strategy works especially well for professional service firms, freelancers, and consultants without inventory. A consultant who finishes a $50,000 project in November can wait until January to invoice, legally deferring the income for an entire year. The same consultant can prepay January rent or stock up on office supplies in December to shift deductions forward.
Simplicity matters too. You do not need to track accounts receivable or payable for tax purposes, and your tax records essentially mirror your bank statements. For a sole proprietor or small partnership, that is a meaningful reduction in bookkeeping.
How To Change Your Accounting Method
You cannot just start filing under a different method. Switching between cash and accrual requires the consent of the IRS.1Office of the Law Revision Counsel. 26 USC 446 – General Rule for Methods of Accounting You request the change by filing Form 3115, Application for Change in Accounting Method, during the tax year the change is to take effect.11Internal Revenue Service. About Form 3115, Application for Change in Accounting Method
Many common changes qualify for automatic IRS consent, meaning you file Form 3115 with your tax return and do not need to wait for individual approval. Changes that don’t qualify for automatic consent require advance approval, which involves filing earlier and paying a user fee.
The hardest part of any method change is the Section 481(a) adjustment. When you switch methods, some items of income or expense could be double-counted or missed entirely. The 481(a) adjustment is a one-time correction that captures everything the transition would otherwise lose. Moving from cash to accrual, for example, your outstanding accounts receivable were never taxed under the cash method; the adjustment adds them to income so they don’t escape taxation.
A positive adjustment, one that increases income, is generally spread over four tax years: the year of the change plus the next three.12Internal Revenue Service. IRM 4.11.6 – Changes in Accounting Methods A negative adjustment, one that decreases income, is taken entirely in the year of the change. Getting the 481(a) calculation wrong is a common error on method-change filings and is usually worth handing to a tax professional.
Penalties for Using the Wrong Method
Using a method you are not entitled to, or switching without consent, exposes you to penalties. If the IRS determines your method does not clearly reflect income, it can recompute your taxable income and assess back taxes plus interest. The statute states that failing to request a method change does not protect you from penalties.1Office of the Law Revision Counsel. 26 USC 446 – General Rule for Methods of Accounting
On top of the additional tax, the IRS can impose a 20 percent accuracy-related penalty on any underpayment resulting from negligence or disregard of tax rules. A separate substantial understatement penalty, also at 20 percent, applies when a taxpayer understates liability by more than specified thresholds.13Internal Revenue Service. Accuracy-Related Penalty When several years of incorrect reporting are unwound at once, these amounts add up fast.