Can My Business Use Cash Accounting? Eligibility by Entity Type
If you are deciding how your company reports income and expenses for tax, your entity type is the first thing that determines whether the cash method is available to you. Size matters too, but only for some entities.
Most sole proprietorships, single-member LLCs, S-corps, and partnerships whose partners are all individuals can use the cash method for tax, as long as they are not a tax shelter. A C-corp, or a partnership with a C-corp as a partner, can use the cash method only if its average annual gross receipts for the prior three tax years are at or below $32 million for tax years beginning in 2026, or if it qualifies as a personal service corporation. Tax shelters cannot use the cash method at any size.
This post covers eligibility only. The mechanics of each method, and how to choose between them when both are available, are covered in our cash vs accrual guide.
Eligibility by entity type
| Entity | Can it use the cash method for tax? | What decides it |
|---|---|---|
| Sole proprietorship or single-member LLC | Yes, generally | Tax shelter status only |
| Multi-member LLC with only individual members | Yes, generally | Tax shelter status only |
| Multi-member LLC with a C-corp member | Only if it passes the gross receipts test | $32 million three-year average for 2026 |
| S-corp | Yes, generally | Tax shelter status only |
| C-corp | Only if it passes the gross receipts test or is a qualified personal service corporation | $32 million three-year average for 2026 |
| Any tax shelter | No | Not available at any size |
Section 448 restricts three kinds of taxpayers
The limit on the cash method comes from Section 448 of the Internal Revenue Code. It names three kinds of taxpayers that cannot use the cash method by default: C corporations, partnerships with a C corporation as a partner, and tax shelters.
The first two can still use the cash method if they pass the gross receipts test. Tax shelters cannot. Every other taxpayer, including individuals, S-corps, and partnerships whose partners are all individuals or pass-through entities, is outside Section 448 and can generally use the cash method unless another rule applies.
The gross receipts test uses a three-year average
The test looks at average annual gross receipts for the three tax years before the current one. For tax years beginning in 2026, the average must be $32 million or less. The limit was $31 million for 2025 and is adjusted for inflation each year.
Newer companies average over the years they have existed. A company in its second year averages its single prior year. A company in its first year has no prior years and passes the test.
Short years are annualized. A tax year shorter than 12 months has its gross receipts annualized before they go into the average.
Related companies count together. Gross receipts are aggregated across companies under common control. A US company that is part of a larger group, which can include a foreign parent or a sister company, may fail the test even when its own receipts are small.
Gross receipts means total receipts, not profit. The figure includes sales, service revenue, interest, dividends, rents, and royalties, reduced by returns and allowances. Cost of goods sold and operating expenses are not subtracted.
S-corps are not C-corps for this rule
An S-corp is a corporation under state law, which leads some owners to assume the C-corp limit applies. It does not. Section 448 restricts C corporations, and an S-corp is not one. An S-corp can generally use the cash method at any size, unless it is a tax shelter.
The same is true for an LLC that has elected S-corp tax treatment.
A C-corp member changes the answer for an LLC
A multi-member LLC taxed as a partnership is normally free to use the cash method. Adding a C-corp as a member brings it under Section 448.
This happens more often than owners expect. A corporate investor takes a stake in an LLC. An owner holds their interest through their own C-corp holding company. A parent company owns part of a joint venture LLC. In each case, the LLC has to pass the gross receipts test to keep using the cash method, and its receipts may be aggregated with the corporate member's group.
Tax shelters and syndicates cannot use the cash method
A tax shelter cannot use the cash method regardless of its size or entity type. The definition includes a category called a syndicate: a partnership or other non-C-corp entity that allocates more than 35% of its losses for the year to limited partners or limited entrepreneurs, meaning owners who do not actively participate in management.
This catches LLCs with passive investors in years when the LLC has a loss. An LLC that is comfortably cash-eligible in a profitable year can lose eligibility in a loss year if most of the loss flows to passive members. The rule turns on the year's facts, so it has to be checked each year.
Qualified personal service corporations keep the cash method
A C-corp that is a qualified personal service corporation can use the cash method even if it fails the gross receipts test. Two conditions apply.
Function test. Substantially all of the company's activities involve services in health, law, engineering, architecture, accounting, actuarial science, performing arts, or consulting.
Ownership test. Substantially all of the company's stock is held by employees performing those services, retired employees, or their estates.
A software company, a marketing agency, or a staffing firm does not meet the function test, even if its owners provide the services.
Inventory does not close the door for small businesses
Businesses with inventory were historically required to use the accrual method for purchases and sales. Under current rules, a business that passes the gross receipts test is not required to keep inventories under the traditional rules. It can treat inventory as non-incidental materials and supplies, or follow the method used in its books.
For a C-corp or a partnership with a C-corp partner, this means the same gross receipts test decides both questions.
Tax method and book method can differ
The cash method rules apply to the tax return. Your books can use a different method. Many companies that are eligible for the cash method for tax still keep accrual books, because investors, lenders, and acquirers expect financial statements that match revenue to the period it was earned.
A company that loses cash eligibility, for example by crossing the gross receipts limit or by adding a C-corp member, has to change its tax method for that year. The change is generally made on Form 3115 and comes with an adjustment that spreads the difference between the two methods over time.
Inkle's bookkeepers keep books on the method your entity is eligible for, and can keep accrual books alongside a cash-method tax return. For the other ways entity type changes your books, see our guide, Bookkeeping for an LLC vs S-Corp vs C-Corp: What Changes on Your Books.
The bottom line
For most LLCs and S-corps, cash method eligibility is not a question of size. It becomes one only for C-corps and for partnerships with a C-corp partner, where the three-year gross receipts average decides it, and $32 million is the limit for tax years beginning in 2026. The cases that catch owners off guard are structural: a corporate investor joining an LLC, a group that aggregates receipts across related companies, or a loss year that turns an LLC with passive investors into a syndicate. Each of these changes eligibility without any change in how the business operates day to day.
Frequently asked questions
Can an LLC use cash accounting?
Usually, yes. A single-member LLC or a multi-member LLC with only individual members can generally use the cash method unless it is a tax shelter. An LLC with a C-corp member must pass the gross receipts test.
Can a C-corp use cash accounting?
Yes, if its average annual gross receipts for the prior three tax years are $32 million or less for tax years beginning in 2026, or if it is a qualified personal service corporation. A C-corp that fails both tests must use the accrual method for tax.
Can an S-corp use the cash method if it has more than $32 million in revenue?
Generally, yes. The gross receipts limit applies to C-corps and partnerships with C-corp partners, not S-corps. An S-corp loses cash eligibility only if it is a tax shelter.
What happens if my C-corp crosses the gross receipts limit?
The company has to change to the accrual method for tax starting with the year it fails the test. The change is generally filed on Form 3115, and the difference between the two methods is taken into income through an adjustment over time.
Can I use cash accounting for taxes and accrual for my books?
Yes. The tax method and the book method can differ, and many companies keep accrual books for investors and lenders while filing on the cash method. The return then reconciles book income to taxable income.
