Tax basis financial statements are a set of four reports that present a business’s financial position and results using the same rules it follows on its federal income tax return. Every number flows from the Internal Revenue Code and Treasury Regulations rather than from GAAP, so the statements show tax-method revenue, MACRS-depreciated assets, and a tax-basis equity figure. Privately held companies, partnerships, S corporations, and sole proprietorships use them most often because the data already exists in the tax return and no second set of books is required.
The Four Statements You Get
A complete set includes a Statement of Assets and Liabilities, a Statement of Revenues and Expenses, a Statement of Changes in Equity (or Net Assets), and Notes to the Financial Statements. Each one mirrors a GAAP counterpart but carries a different title and uses different measurement rules underneath. The naming is not optional. Each statement must include a phrase such as “Income Tax Basis” in its title so readers know immediately that GAAP was not used.
Statement of Assets and Liabilities
This is the tax-basis balance sheet. Assets typically include cash and cash equivalents, inventory valued under tax rules, fixed assets net of MACRS depreciation, and investments at tax-basis cost. Liabilities include notes payable, the current portion of long-term debt, and other obligations recorded under tax rules. Equity is the residual.
What you will not see tells you as much as what you will. A cash-method entity shows no accounts receivable, because an uncollected invoice is not revenue yet, and no accounts payable or accrued expenses, because unpaid bills are not deductions yet. No deferred tax assets or liabilities appear on either method. Those accounts exist under GAAP solely to reconcile book income with taxable income, and on a tax basis statement there is nothing to reconcile.
Statement of Revenues and Expenses
This replaces the GAAP income statement. Revenue is recognized on the entity’s tax method, cash or accrual, and expenses reflect tax deductions rather than GAAP expense categories. Depreciation follows MACRS recovery periods instead of estimated useful lives. The bottom line is essentially the entity’s taxable income before adjustments that live only on the return itself, like the qualified business income deduction or net operating loss carryforwards.
Statement of Changes in Equity
This reconciles the beginning and ending equity balances, showing how tax-basis net income, owner contributions, and distributions moved the number during the period. For partnerships and S corporations it often tracks each owner’s tax-basis capital account.
Notes to the Financial Statements
The notes carry heavier weight here than in a GAAP presentation because the measurement rules depart from what most readers expect. They disclose the framework, the significant accounting policies, the material tax elections, and the ways the presentation differs from GAAP. Details below.
What Looks Different from GAAP on the Numbers
The differences are not just reclassifications. They change asset values, net income, and equity for the same underlying business.
Fixed Assets and Depreciation
Depreciation is where the gap is widest. Tax law requires most tangible property to be depreciated under the Modified Accelerated Cost Recovery System, which uses statutory recovery periods and accelerated methods.1Internal Revenue Service. Topic No. 704, Depreciation Most personal property uses the 200% declining balance method, switching to straight-line when that produces a larger deduction. Real property uses straight-line over 27.5 years for residential and 39 years for nonresidential.2Office of the Law Revision Counsel. 26 U.S.C. 168 – Accelerated Cost Recovery System GAAP lets businesses depreciate assets over estimated economic useful lives, usually straight-line. MACRS front-loads depreciation, which pushes tax-basis net income lower in early years and leaves the carrying value of fixed assets lower throughout the recovery period.
Two provisions push the gap wider. Section 179 allows an immediate deduction for the full cost of qualifying property rather than depreciation over time. For 2026, the maximum Section 179 deduction is $2,560,000, and it begins phasing out when total qualifying property placed in service exceeds $4,090,000.3Internal Revenue Service. Revenue Procedure 2025-32 The statutory basis is IRC Section 179.4Office of the Law Revision Counsel. 26 U.S. Code 179 – Election to Expense Certain Depreciable Business Assets Bonus depreciation adds a first-year deduction for a percentage of qualifying asset costs. The One Big Beautiful Bill Act restored 100% bonus depreciation for qualifying property placed in service after January 19, 2025, so a 2026 business can potentially write off the entire cost of eligible equipment in the year it is placed in service. Neither provision has a GAAP equivalent, which is why tax basis statements routinely show much lower fixed-asset balances than GAAP statements for the same company.
Inventory and UNICAP
Businesses that produce or resell goods generally must capitalize certain overhead costs into inventory under the Uniform Capitalization Rules of IRC Section 263A. Warehouse rent, production-related utilities, and portions of administrative overhead get added to the cost of inventory rather than deducted immediately.5Office of the Law Revision Counsel. 26 U.S. Code 263A – Capitalization and Inclusion in Inventory Costs of Certain Expenses GAAP also requires capitalization, but the UNICAP net tends to be wider.
Small businesses are exempt. For tax years beginning in 2026, entities with average annual gross receipts of $32 million or less over the prior three years are entirely outside UNICAP.3Internal Revenue Service. Revenue Procedure 2025-32 The same threshold governs the cash-method exception under Section 448, so one test clears both rules.
One inventory rule bites specifically at the financial statements. If a business elects LIFO for tax purposes, it must also use LIFO in its financial statements. The conformity requirement runs both ways: reporting LIFO on the return and FIFO on the financials is not permitted.6Internal Revenue Service. LIFO Conformity Requirement
Bad Debts
GAAP uses an allowance method, with an estimate of future uncollectibles sitting as a contra-asset on the balance sheet. Tax law does not. A bad debt deduction is available only when a specific receivable becomes wholly or partially worthless and is actually written off.7Office of the Law Revision Counsel. 26 U.S. Code 166 – Bad Debts The reserve method was repealed for most businesses in 1986. On a tax basis balance sheet there is no “allowance for doubtful accounts” line. Receivables sit at full face value until the moment they are deemed worthless and removed.
Prepaid Expenses and Accrued Liabilities
Cash-method businesses do not record prepaid expenses or accrued liabilities at all. A December rent payment for January occupancy hits the current year, and unpaid bonuses do not appear as liabilities until the checks go out.
Accrual-method businesses get a narrower rule. The tax code’s 12-month rule allows immediate deduction of a prepaid amount when the benefit does not extend beyond the earlier of 12 months after the taxpayer first receives it or the end of the following tax year.8eCFR. 26 CFR 1.263(a)-4 – Amounts Paid to Acquire or Create Intangibles GAAP requires stricter proration over the benefit period, which usually leaves a larger prepaid asset on the books. Tax basis statements tend to show lower current assets and lower current liabilities than their GAAP equivalents.
Cash Method or Accrual Method
Every tax basis entity has to use one method or the other, and the choice reshapes the statements from top to bottom. Under the cash method, revenue is recorded when payment arrives and expenses when they are paid. Under the accrual method, revenue is recorded when earned and expenses when incurred.
The choice is not always open. C corporations, partnerships that include a C corporation as a partner, and tax shelters generally must use accrual unless they qualify under the small business exception in IRC Section 448.9Office of the Law Revision Counsel. 26 U.S. Code 448 – Limitation on Use of Cash Method of Accounting For tax years beginning in 2026, that exception applies when average annual gross receipts over the prior three years do not exceed $32 million.3Internal Revenue Service. Revenue Procedure 2025-32 Entities below the threshold can use the cash method, which is simpler and often more favorable for tax timing.
What the Notes Must Say
The notes do the explanatory work that lets a reader interpret the numbers. The foundational disclosure is a clear statement that the financial statements were prepared on the income tax basis of accounting and not under GAAP. Without it, a reader could reasonably assume GAAP was followed and misread the balance sheet.
Beyond the framework note, a summary of significant accounting policies should cover:
- Revenue and expense recognition, meaning whether the entity uses the cash method or the accrual method.
- Depreciation, confirming MACRS and disclosing any Section 179 or bonus depreciation elections.
- Inventory method, identifying FIFO, LIFO, or another acceptable method, and whether UNICAP applies.
- Other material tax elections affecting reported amounts, such as treatment of organizational costs, research expenses, or start-up costs.
The notes should also describe in narrative form how the tax basis presentation differs materially from GAAP. Quantifying every difference is not required, but a reader should come away understanding why certain line items are absent or valued differently. One item the notes do not need to address is uncertain tax positions. The GAAP standard governing tax uncertainties, ASC 740-10, does not apply to tax basis or other non-GAAP frameworks.
Levels of CPA Involvement
Tax basis statements can be issued at four levels of CPA engagement, each with a different degree of assurance. The standards come from the Statements on Standards for Accounting and Review Services for compilations, reviews, and preparation engagements, and from AU-C Section 800 for audits of special purpose framework statements.
- Preparation. The CPA prepares the statements but provides no assurance and issues no report. Common for internal use or routine lender submissions.
- Compilation. The CPA presents the statements in proper form and issues a report stating that no audit or review was performed. No assurance, but the CPA’s name is attached. Can be issued with or without full note disclosures.
- Review. The CPA performs analytical procedures and inquiries and issues a report providing limited assurance that no material modifications are needed. A middle ground that some lenders require.
- Audit. The CPA examines records, confirms balances, and issues an opinion providing reasonable assurance that the statements are fairly presented under the tax basis framework. The most expensive engagement and less common for tax basis work, but some lending agreements or ownership structures require it.
For audits, the CPA’s report must include a paragraph explaining the special purpose framework and noting that the statements are not intended to conform to GAAP.
Moving from GAAP to Tax Basis
On the financial reporting side, the switch is simple. The CPA prepares next period’s statements under tax rules instead of GAAP. No regulatory approval is needed for the statements themselves.
The tax side can be more involved. If the switch requires changing the entity’s overall accounting method for tax purposes, such as moving from accrual to cash, the business must file IRS Form 3115 to request consent.10Internal Revenue Service. Instructions for Form 3115 Many common changes qualify under automatic consent, meaning no user fee and no wait for IRS approval. The signed form is attached to the return for the year of change, with a duplicate copy sent to the IRS National Office. Changes outside automatic consent require a separate application with a user fee and must be filed during the tax year of the requested change.
Watch for the Section 481(a) adjustment. A method change triggers a one-time adjustment to prevent income from being permanently omitted or double-counted. A positive adjustment (previously deferred income) generally gets spread over four tax years. A negative adjustment (previously deferred expenses) is taken entirely in the year of change. The adjustment flows into the tax basis statements for the transition year and belongs in the notes.