How does state and local tax fit into the ASC 740 income tax provision?
Edvin Givargis Published 12 minute read
The short answer
FASB ASC Topic 740 governs accounting for income taxes, and its scope reaches domestic federal income taxes and foreign, state, and local taxes based on income, including franchise taxes to the extent they are measured by income. State corporate income taxes are squarely inside. Sales and use taxes, property taxes, payroll taxes, franchise taxes measured by capital or net worth, and most gross receipts taxes are outside, and exposures under those taxes are measured under the loss-contingency framework of FASB ASC Topic 450, which uses a different threshold, lands on a different line of the income statement, and carries different disclosure. Within Topic 740, the state layer is not a single blended rate bolted onto the federal computation. It has a current provision built from federal taxable income, state modifications, and apportionment factors; a deferred state rate that must be remeasured in the period any rate or apportionment law change is enacted, whether or not it has taken effect; state net operating losses and credits that are deferred tax assets requiring their own scheduling and their own valuation allowance analysis; and uncertain tax positions, the most consequential of which are often nexus positions in states where no return is filed. Topic 740 presumes every position will be examined by a taxing authority with full knowledge of the facts, so the chance that a state never notices is not part of the analysis. A position that fails the more-likely-than-not threshold stays reserved until it is effectively settled or the limitation period expires, and a state in which no return was filed generally has no limitation period running at all.
Which state taxes Topic 740 covers, and which it does not
The line Topic 740 draws is whether the tax is based on income, meaning a base built from revenue reduced by expenses. A state corporate income tax computed on apportioned net income is the clear case. A franchise tax that a state labels a privilege tax is still within Topic 740 to the extent its measure is income, because the label does not decide scope; the measure does. Where a franchise tax is computed as the greater of an income-based amount and a capital-based or other non-income amount, the codification treats the income-based component as within Topic 740, deferred taxes included, and the amount paid above it under the non-income measure is accounted for as a non-income tax. A franchise tax measured solely by capital, net worth, or a similar base is outside Topic 740 entirely and is expensed as an operating tax.
Taxes measured by gross receipts with no deduction for expenses fall outside, because there is no income in the base. Ohio's commercial activity tax, levied on taxable gross receipts under Ohio Rev. Code section 5751.02(A), and Washington's business and occupation tax, measured by the value of products, gross proceeds of sales, or gross income of the business under RCW 82.04.220(1), are the familiar examples. Sales and use, property, and payroll taxes are outside for the same reason.
The hybrids are where judgment enters. The Texas franchise tax under Tex. Tax Code chapter 171 is imposed on taxable margin, which section 171.101(a)(1) computes as the lesser of 70 percent of total revenue, total revenue minus $1 million, or total revenue minus either cost of goods sold or compensation. Because the cost of goods sold and compensation computations subtract expenses from revenue, practice has generally treated the tax as within Topic 740, but the conclusion rests on the structure of the base, and the same structural reading has to be done for any newer tax that mixes receipts and deductions. The scope decision should be documented once, applied consistently across periods, and revisited when a state changes the base.
The current provision and the state rate
The current state provision tracks the state return: federal taxable income, adjusted by state additions and subtractions, multiplied by the apportionment percentage, reduced by available state net operating losses, and multiplied by the state rate. Many companies begin with a single blended state rate applied to pre-tax income. That shortcut may be acceptable when the footprint is small and stable, but it breaks down when a few states dominate the expense, when entities file separately in some states and on a combined or unitary basis in others, or when state modifications are large. A separate computation for each material state, and for each filing group within it, is the reliable approach, and it is increasingly the approach disclosure demands.
Apportionment data quality drives most of the current provision's error. Receipts sourcing for services and intangibles, throwback and throwout treatment, and factor data pulled from systems built for other purposes all flow straight into the rate. State modifications add a second layer: states that decouple from federal bonus depreciation or require addback of related-party interest and intangible expenses create state-only temporary differences, so the state deferred balance is not simply the federal balance multiplied by a state rate.
State income taxes are deductible for federal corporate income tax purposes under 26 U.S.C. section 164(a)(3), and the federal rate is 21 percent under 26 U.S.C. section 11(b). Each dollar of state tax expense therefore carries a federal benefit, and the state effect in the rate reconciliation is stated net of it. A hypothetical 6 percent state rate becomes roughly 4.74 percent after the federal benefit. Public business entities reporting under ASU 2023-09 for annual periods beginning after December 15, 2024, and other entities for annual periods beginning after December 15, 2025, face expanded disclosure, including income taxes paid disaggregated among federal, state, and foreign, with separate disclosure of any individual jurisdiction equal to or greater than 5 percent of the total, and, for public business entities, a qualitative description of the states and localities making up more than 50 percent of the state and local reconciling item.
Deferred taxes and valuation allowances at the state layer
Deferred tax assets and liabilities are measured using the enacted tax rates expected to apply in the periods the underlying differences reverse. For state purposes that rate is the apportionment percentage expected in those future years multiplied by the enacted state rate, which makes the state deferred rate forward-looking and sensitive to anything that changes future apportionment. A phased rate reduction, a move from a three-factor formula to a single sales factor, or a shift from cost-of-performance to market-based sourcing changes the rate at which existing deferred balances will reverse. So does a business change: closing a facility, moving a distribution center, or entering new markets can move a state apportionment percentage enough to remeasure a large deferred balance.
The effect of a change in tax law or rates is recognized in income from continuing operations in the period that includes the enactment date, not the effective date. A rate cut enacted in June and effective two years later is booked in June's reporting period for every deferred balance expected to reverse after it takes effect. State legislatures enact tax changes on their own calendars, often in late-session budget bills, and mid-year state enactments are a recurring source of surprise adjustments. Remeasurement cuts both ways. A company in a net deferred tax asset position that lowers its apportionment in a state, whether through planning or through a law change, writes down the value of that asset and records expense even as its future cash tax falls, and planning that looks like a clean saving on the return can produce a charge in the financial statements.
State net operating losses and credits are deferred tax assets, and they rarely track the federal attributes. Carryforward periods, annual usage caps, suspension years, and conformity differ by state; some states compute the loss before apportionment and others after; and in a separate-filing state a loss belongs to the entity that generated it and cannot shelter a profitable affiliate's income. Each state's attributes need their own schedule by vintage and expiration. A valuation allowance is required when, based on the weight of available evidence, it is more likely than not (a likelihood of more than 50 percent) that some portion or all of a deferred tax asset will not be realized. Realization depends on four sources of taxable income: reversals of existing taxable temporary differences, future taxable income apart from those reversals, taxable income in permitted carryback years, and tax-planning strategies. Cumulative losses in recent years are significant negative evidence. At the state layer the analysis is run state by state, and in separate-filing states entity by entity, so a consolidated group that is profitable overall can still need an allowance on a loss entity's attributes in a state where that entity files alone.
Uncertain tax positions, and the exposures that belong elsewhere
A tax position is recognized only if it is more likely than not, based on its technical merits, to be sustained on examination, and the analysis presumes the taxing authority will examine it with full knowledge of all relevant information. A position that clears that threshold is measured at the largest amount of benefit that is greater than 50 percent likely of being realized on ultimate settlement. Interest accrues from the date the relevant tax law would begin charging it, and penalties are accrued where the position does not meet the minimum statutory threshold to avoid them. The state positions that most often require this analysis are nexus positions, including reliance on Public Law 86-272; filing method, such as separate versus combined reporting and the membership of a unitary group; apportionment methodology, including receipts sourcing, throwback, and business versus nonbusiness classification; and intercompany transactions.
A decision not to file a return in a state is itself a tax position. If the company's activity in a state creates a filing obligation that its no-filing position cannot defeat at the more-likely-than-not level, the tax, interest, and any penalties for each unfiled year belong in the reserve. A previously unrecognized benefit is released only when the threshold is later met, the position is effectively settled, or the limitation period for the taxing authority to examine it expires. That last trigger rarely arrives for a nonfiler, because state limitation periods generally run from a filed return. Cal. Rev. and Tax. Code section 19087(a), for example, allows the Franchise Tax Board to estimate income and propose an assessment at any time when a taxpayer fails to file. Unfiled-state reserves therefore accumulate year over year, and a voluntary disclosure agreement that fixes a lookback period is often the only practical way to close the tail.
Exposures under taxes outside Topic 740 follow FASB ASC Topic 450, and Subtopic 450-20 expressly excludes uncertainty in income taxes from its scope, so the two frameworks do not overlap. Under Topic 450, a loss is accrued when it is probable that a liability had been incurred at the balance sheet date and the amount can be reasonably estimated. A loss that is at least reasonably possible, but not accrued, is disclosed with its nature and an estimate of the possible loss or range, or a statement that no estimate can be made. Topic 450 also treats unasserted claims differently: where a taxing authority has shown no awareness of a possible assessment, disclosure is not required unless it is probable the claim will be asserted and reasonably possible the outcome will be unfavorable. Sales and use tax nexus exposure, gross receipts tax exposure, property tax exposure, and unclaimed property exposure, which is not a tax at all, are all assessed under this framework. The difference in threshold is substantive. The same unregistered state can call for a Topic 740 reserve for income tax, because detection is presumed, while its sales tax exposure is measured under a framework that does not make that presumption. The difference in presentation matters too: a Topic 450 accrual for a non-income tax generally sits above the income tax line and reduces operating results, while a Topic 740 reserve runs through income tax expense. Booking a gross receipts tax exposure into the uncertain tax position reserve, or measuring an income-based franchise tax exposure as a Topic 450 contingency, misstates both the amount and the line, and it is among the more common errors auditors find in this area.
Practice notes
A lean tax function makes the auditor's review of the state layer faster by assembling a standard package before fieldwork: apportionment workpapers tied to source data for each material state, with the sourcing method for each revenue stream stated; a state rate reconciliation showing the current and deferred state rates, the federal benefit, and the reason for every movement from the prior period, including any enacted law change and its enactment date; net operating loss and credit schedules by state, by entity where the state requires separate filing, and by vintage, with the valuation allowance conclusion and its evidence; a written scope determination for each hybrid or gross receipts tax the company pays; and the nexus memorandum that supports each state where no return is filed, including the analysis under Public Law 86-272 where it is relied upon. The last item is the one most often missing, and without it an auditor has little basis to accept a no-filing position without a reserve. The provision is also frequently the first place state tax exposure reaches a board or audit committee in numbers: a new uncertain tax position reserve for unfiled states, a valuation allowance on state attributes after a restructuring, a remeasurement charge from a mid-year enactment, a Topic 450 accrual after a sales tax review, or a disclosure naming the states that drive the state and local rate. Tax functions that model the provision effect of planning and footprint changes before they happen avoid delivering those numbers as surprises. G&G State Tax Group provides nexus studies, state exposure quantification, and state tax provision review support alongside its state and local tax practice.
This article states the law as of September 26, 2026
Statutes, rates, thresholds, and agency practice change, and a different set of facts can change the answer. Before acting on anything discussed above, contact G&G State Tax Group, or another state and local tax adviser, to confirm what has changed since this was written and how the rules apply to a specific situation.
This publication is informational in nature and is not, and should not be considered, legal, accounting, tax, or other professional advice for any person or situation. Correct application of tax law depends heavily on the facts and circumstances in each case, and G&G State Tax Group, LLC assumes no liability in connection with the use of this information, and is not obligated to inform any reader of changes in the law or other factors that could affect the information contained herein.