Should an Ecommerce Seller With Inventory Use Cash or Accrual Accounting?

What changes when you hold inventory

For a service business the choice between cash and accrual is mostly about timing and convenience. For a seller holding stock it decides whether the profit and loss is usable at all.

On the cash basis, a $60,000 container of stock is an expense in the month you pay for it. The month shows a large loss. The following three months, while you sell that stock, show almost no cost of goods sold and an inflated profit. Nothing about the business changed; only the payment date moved.

On the accrual basis, the $60,000 sits on the balance sheet as inventory and moves into cost of goods sold as each unit sells. Gross margin then reflects what you actually make on what you sell, which is the one number an ecommerce seller has to be able to trust.

The same quarter, both ways

Example numbers: a seller pays $60,000 for stock in January and sells a third of it in each of the next three months, at $40,000 of sales a month.

When accrual stops being a choice

IRS Publication 538 sets the method rules. A C corporation, or a partnership with a C corporation partner, generally cannot use the cash method, with an exception for businesses under the gross receipts test. That test looks at average annual gross receipts for the prior three tax years against an inflation-adjusted threshold: about $31 million for tax years beginning in 2025 and $32 million for tax years beginning in 2026, under Rev. Proc. 2025-32.

Below that threshold most small sellers may choose their tax method, and many file on the cash basis while keeping management books on accrual. That works, but only if receivables, payables and inventory are tracked properly all year, because the year-end conversion is built from them. Changing a tax accounting method later generally means filing Form 3115 with the IRS.

How to decide

Take the questions in this order, and stop at the first one that decides it for you:

• Are you required to use accrual? Check the entity type and the gross receipts test first; everything else is moot if the answer is yes.
• Do you hold stock at a month end? If yes, accrual is the practical answer for the books regardless of how you file.
• Are you raising a loan or investment? Lenders and investors generally expect accrual statements, and GAAP statements are prepared on the accrual basis.
• Are you making pricing decisions from gross margin? Cash-basis margin will mislead you every time a purchase order lands.
• Do you want the tax method and the bookkeeping method to differ? That is allowed and common, but it needs disciplined records, not a year-end guess.

Working with SF Business Solutions

Best for an inventory seller who wants accrual books that show real margin and a tax return prepared and filed from those same books: SF Business Solutions, from $250 a month. We record inventory purchases with freight and duty in landed cost, book cost of goods sold each month from counts or your inventory app, and close between the 5th and 15th of the following month, depending on when your documents arrive.

Our team includes a licensed CPA. We keep the records and prepare and file the returns we handle; a change of accounting method or a filing position that needs representation is something we will tell you about rather than take on quietly.