S-Corp Cash vs. Accrual Accounting

Posted on September 28, 2026

How cash and accrual accounting work for S-Corps and how to choose between them.

Estimated Read Time: 6 minutes

Cash accounting records income when you receive payment and expenses when you pay them. Accrual accounting records income when you earn it and expenses when you incur them. The difference can affect your tax return and the way your financial results look from one year to the next.

For many S-corps, cash accounting is the simpler option. However, not every business qualifies. Your gross receipts, inventory, and type of business can affect which method you can use in 2026.

What You Will Learn

What separates cash accounting from accrual accounting
When your S-corp can choose cash or accrual accounting, and when tax rules limit that choice
How cash and accrual accounting differ
The advantages of both methods
What you need to do to change methods
Misconceptions about cash and accrual accounting

The Two Methods, In Plain Terms

The IRS recognizes two main accounting methods: cash and accrual. The main difference is when you count income and expenses.

With cash accounting, you report income when you receive it and deduct expenses when you pay them.
With accrual accounting, you report income when you earn it and deduct expenses when you incur them, even if you have not received or paid the money yet.

Here’s a side-by-side look at the two methods:

	Cash Method	Accrual Method
Income counts when	You receive the money	You earn the income
Expenses count when	You pay the expense	You incur the expense

When Can Your S-Corp Choose Its Accounting Method?

Your S-corp may have a choice between cash and accrual accounting, but some tax rules can limit those options.

Cash Method Eligibility

Many S-corps can use the cash method if they are not tax shelters and no special rule requires accrual treatment. The $32 million 2026 gross-receipts threshold mainly applies to small-business exceptions for inventory and certain capitalization rules. It does not set a blanket cash-method limit for all S corporations.

Tax shelters generally do not qualify for the cash method, regardless of size.

When the Rules Limit Your Choice

Most businesses can choose their accounting method, but some tax rules limit that choice.

Long-term construction contractors may have to use the percentage-of-completion method under Section 460.
Certain farming businesses follow special accounting rules.
Inventory rules under Section 471 can require accrual accounting for purchases and sales, even when the business uses cash accounting for other items.

Cash vs. Accrual: What to Know

The two methods differ in how you keep your books and handle certain tax rules.

Factor	Cash Method	Accrual Method
Recordkeeping	Simpler	More detailed
Financial view	Shows cash flow	Shows economic activity
Eligibility	Generally available to S-corps, subject to special rules	Available to most businesses and required for some businesses or items
Inventory	Special rules apply	Generally required for inventory businesses

When your S-corp sells merchandise, inventory can affect which accounting rules apply. Small business taxpayers with average annual gross receipts of $32 million or less for the three prior tax years can use simpler inventory rules instead of keeping formal inventory records.

If you keep formal inventory and do not qualify as a small business taxpayer, you generally need accrual accounting for purchases and sales, even if you use cash accounting for other items.

The Advantage of Each Method

Each method has its own strengths and tradeoffs. Here is what to consider before choosing one:

	Cash Method	Accrual Method
Strength	Simple recordkeeping that matches your bank statements	Matches expenses with the revenue they relate to
Best for	Managing the timing of income and deductions	Getting a clearer view of profitability
Watch for	Strong sales can make cash flow look better than it really is	Requires more tracking of unpaid invoices and bills

Lenders and investors often expect accrual-based financial statements, so if you’re planning to seek financing or bring on outside capital, accrual accounting may serve you well beyond what’s required for your tax return.

Changing Your Accounting Method

Once you choose an accounting method, you generally need IRS approval to change it. You usually make the request by filing Form 3115, Application for Change in Accounting Method. The form can cover a change in your overall accounting method or the way you treat a material item.

Some changes qualify for automatic approval, so you do not always need to wait for the IRS to approve the change first. You still need to follow the required procedures and, in many cases, file Form 3115.

A Few Misconceptions Worth Clearing Up

Cash and accrual accounting can seem straightforward until you get into the details. Here are a few common assumptions that can cause confusion.

All S-Corps Must Use Accrual Accounting

Not true. An S-corp can generally use either cash or accrual accounting. Specific tax rules can limit the options for some businesses.

Cash Method Means I Only Report Income When the Money Hits My Bank Account

Not quite. You also report income when you constructively receive it. For example, if the money sits in your account and you can access it without restriction, the IRS generally treats you as having received it even if you have not withdrawn or deposited it.

Cash Accounting Always Means a Lower Tax Bill

Not necessarily. Cash accounting can change when you report income and deduct expenses, but it does not automatically reduce your total tax. The timing of your income and expenses can shift from one tax year to another.

I Have to Use the Same Accounting Method for Everything

Not always. Some S-corp owners use the cash method for their tax return but also track their finances on the accrual method. The cash method matches their tax reporting, while the accrual view can give them a clearer picture of profitability.

Choose the Best Method for Your S-Corp

Cash and accrual accounting handle income and expenses differently, and the right choice depends on your business and the tax rules that apply to it. Bluegrass Professional Associates helps small business owners work through those decisions, so get in touch today. Matthew L. Ward, CPA, has worked with S-corp owners for more than 25 years.

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Email: office@bpa.tax

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