A cash basis income statement reports only the money that actually moved in and out of your business during a given period. Revenue appears when payment hits your account; expenses appear when you actually pay them. Invoices you’ve sent but haven’t collected, and bills you’ve received but haven’t paid, stay off the statement entirely. For sole proprietors, most partnerships, and S corporations, this is the ordinary way to report income, and the net figure flows straight to Schedule C for Form 1040 filers.1Internal Revenue Service. Instructions for Schedule C (Form 1040)
What Goes on the Statement
A cash basis income statement has two sections and a bottom line.
Cash Receipts
Every dollar deposited into or received by the business during the period. For most small businesses, customer payments do the heavy lifting, but the section also picks up interest earned on business bank accounts, rental income from business property, and refunds or rebates. Group receipts into categories that match how you’ll report them at tax time: sales revenue, service revenue, interest income, other income.
Cash Disbursements
Every payment that left your accounts during the period. Rent, wages, utilities, office supplies, insurance premiums, contractor payments, advertising, travel. A bill sitting unpaid on your desk at year-end is not a year-end expense. Only cleared payments belong here.
Two categories of outgoing money don’t follow the simple “paid it, deduct it” rule, and both are covered below: capital purchases, which usually get depreciated instead of expensed, and certain prepayments covered by the 12-month rule.
Net Income or Loss
Total cash receipts minus total cash disbursements (including depreciation) equals net income or net loss for the period. Positive means more came in than went out. Negative means the opposite. If you’re a sole proprietor, this is the figure that drives Schedule C.1Internal Revenue Service. Instructions for Schedule C (Form 1040)
When a Dollar Counts: The Constructive Receipt Rule
Cash basis doesn’t let you push income into next year just by leaving a check in a drawer. The IRS applies a doctrine called constructive receipt: if income was credited to your account, set apart for you, or otherwise made available without restriction, you’ve received it for tax purposes even if you haven’t touched the money.2eCFR. 26 CFR 1.451-2 – Constructive Receipt of Income
The scenarios that trip people up:
- A client hands you a check on December 28. You wait until January 2 to deposit it. The IRS treats it as December income because nothing stopped you from cashing it.
- Someone you’ve authorized to collect payments receives a check on your behalf. You’ve constructively received it the moment your agent does.3Internal Revenue Service. Publication 538 – Accounting Periods and Methods
- A customer offers to pay you in December for finished work, and you ask them to hold the check until January. The income still belongs in December.
The exception is when a substantial limitation or restriction genuinely prevents access. A stock grant that doesn’t vest until next year isn’t constructively received today. A rent check sitting on your desk is.2eCFR. 26 CFR 1.451-2 – Constructive Receipt of Income
On the expense side, the mirror image applies: a utility bill dated June 1 doesn’t become a June expense until you actually pay it. If payment clears on June 20, it’s a June expense. If it clears on July 2, it belongs to July.
Building the Statement, Step by Step
Set your reporting period. For tax purposes this is your fiscal year. For internal use, pick whatever period helps you manage the business. Monthly or quarterly statements catch cash flow problems earlier than an annual one.
Pull your receipt records. Bank statements, payment processor reports, and records of any checks or cash received during the period. Apply constructive receipt: a check that arrived on the last day of the period counts, even if it was deposited later.
Sort receipts into categories. Sales revenue, service revenue, interest income, other income. If you file Schedule C, mirror its line items so the transfer is clean.
Pull your disbursement records. Bank statements, credit card statements, canceled checks, petty cash logs. Include only payments that actually cleared in the period.
Sort disbursements into categories. Rent, wages and payroll, utilities, office supplies, insurance, professional services, advertising, travel. Separate out capital asset purchases; they follow depreciation rules rather than immediate deduction.
Add depreciation. For depreciable assets already on your books, calculate the period’s depreciation using your chosen method (straight-line, declining balance, or MACRS for tax purposes). Add any Section 179 deduction for qualifying equipment bought during the period. Depreciation goes in your expense section even though no cash moved for that line.
Compute the bottom line. Total receipts minus total disbursements (including depreciation). The result is your net income or net loss for the period.
Capital Purchases and Section 179
Buying a $15,000 piece of equipment is not the same as buying $15,000 in office supplies. Capital expenditures, like machinery, vehicles, and office furniture, generally have to be depreciated over the asset’s useful life rather than deducted in the year of purchase.4Office of the Law Revision Counsel. 26 USC 263 – Capital Expenditures The annual depreciation figure, not the full purchase price, is what appears on your income statement.5Internal Revenue Service. Topic No. 704 – Depreciation
Section 179 provides a major shortcut. For tax years beginning in 2026, you can immediately deduct up to $2,560,000 of qualifying equipment and property purchases, with the deduction beginning to phase out when total qualifying purchases exceed $4,090,000.6Internal Revenue Service. Publication 946 – How To Depreciate Property For a typical small business, that means a $40,000 delivery van bought this year can show up as a $40,000 expense this year instead of being spread across five or seven. The election directly reshapes your income statement.
Prepaid Expenses and the 12-Month Rule
If you prepay for something like a 12-month insurance policy or an annual software subscription, you can deduct the full amount in the year you pay it, provided two conditions hold: the benefit doesn’t extend beyond 12 months from when it begins, and it doesn’t extend past the end of the tax year following the one in which you paid.3Internal Revenue Service. Publication 538 – Accounting Periods and Methods
A $6,000 insurance premium paid in November 2026 for coverage running December 2026 through November 2027 is fully deductible on your 2026 income statement. Prepay a two-year policy, and the 12-month rule doesn’t apply; the deduction has to be spread. The rule also doesn’t reach prepaid interest, loan payments, or purchases of long-term assets like equipment or furniture.
Who Can Use the Cash Method
Federal tax law lets any taxpayer use the cash method unless a specific rule prohibits it.7Office of the Law Revision Counsel. 26 USC 446 – General Rule for Methods of Accounting Individuals, sole proprietorships, S corporations, and most partnerships use it without restriction. The restrictions target C corporations, partnerships with a C corporation as a partner, and tax shelters.8Office of the Law Revision Counsel. 26 USC 448 – Limitation on Use of Cash Method of Accounting
Even those entities get an exception if they pass the gross receipts test. For tax years beginning in 2026, a C corporation or qualifying partnership can use the cash method if its average annual gross receipts over the prior three tax years don’t exceed $32 million.9Internal Revenue Service. Rev. Proc. 2025-32 The threshold is inflation-adjusted each year. Qualified personal service corporations in fields like health, law, engineering, and consulting can use the cash method regardless of revenue.8Office of the Law Revision Counsel. 26 USC 448 – Limitation on Use of Cash Method of Accounting
Selling physical products no longer forces you onto accrual. Under the Tax Cuts and Jobs Act of 2017, a business meeting the same $32 million gross receipts test can use the cash method even if it carries inventory, treating that inventory either as non-incidental materials and supplies or consistently with its financial statements.10Internal Revenue Service. IRS Issues Proposed Regulations for TCJAs Simplified Tax Accounting Rules for Small Businesses The underlying regulation still requires inventory accounting by default, but the small business exception overrides it for qualifying taxpayers.11eCFR. 26 CFR 1.471-1 – Need for Inventories Exceed the threshold and accrual becomes mandatory. Tax shelters cannot use the cash method at any size.