If your business buys products to resell or purchases materials that become part of the work you perform, you've probably heard that you can't deduct those costs until the inventory is sold.
While that was generally true for many years, today's tax rules give many small businesses much more flexibility than they realize.
In fact, depending on your accounting method and the size of your business, you may be able to deduct certain inventory costs much sooner than under the traditional inventory rules.
Understanding these options can improve cash flow, simplify bookkeeping, and reduce your current-year tax liability.
What Counts as Inventory?
Inventory includes products or materials your business purchases, manufactures, or holds for sale to customers.
Examples include:
- Retail merchandise
- Products sold by online businesses
- Construction materials
- HVAC equipment
- Plumbing supplies
- Manufactured products
- Restaurant food inventory
- Wholesale goods
For many businesses, inventory represents one of their largest investments, making the timing of deductions especially important.
Do Small Businesses Have More Flexibility Than They Used To?
Yes.
Changes to the tax law created opportunities for many qualifying small businesses to simplify inventory accounting and, in some situations, deduct inventory costs sooner than under the traditional rules.
Instead of automatically following the more complicated inventory accounting methods that larger businesses often use, qualifying businesses may have several options available depending on how their accounting records are maintained.
The right approach depends on your bookkeeping methods, accounting system, and overall tax strategy.
Who Qualifies for the Small Business Inventory Rules?
Not every business qualifies, but many do.
Generally, businesses with average annual gross receipts below the IRS threshold for small businesses may qualify for simplified inventory accounting methods.
For 2026, that threshold is $32 million in average annual gross receipts. Businesses above that level generally continue using the traditional inventory rules.
Because several IRS rules apply when calculating gross receipts, it's important not to assume your business qualifies without reviewing your specific situation.
Can You Deduct Inventory Before It's Sold?
In some cases, yes.
Depending on your accounting method and how your books are maintained, qualifying businesses may be able to expense inventory costs much earlier than they could under the traditional cost-of-goods-sold rules.
For example, certain businesses using the cash method of accounting may deduct inventory based on how inventory is treated in their books and records, rather than waiting until every item is sold.
That doesn't mean every purchase immediately becomes deductible. The rules depend on several factors, including how your accounting system records inventory and whether your financial records capitalize inventory costs.
This is one reason why proper bookkeeping throughout the year is just as important as preparing your tax return.
Inventory Isn't Just for Retail Stores
When people hear the word "inventory," they often picture a retail store filled with merchandise.
In reality, many service businesses also maintain inventory.
Businesses that may benefit from these rules include:
- Roofing contractors
- Electricians
- Plumbers
- HVAC companies
- Landscape contractors
- Manufacturers
- E-commerce businesses
- Wholesale distributors
- Auto repair shops
If your business regularly purchases materials that eventually become part of the finished product or service you provide, inventory rules likely affect your tax return.
Cash Method vs. Accrual Method
Another important factor is your accounting method.
Many qualifying small businesses can use the cash method of accounting, which often provides greater flexibility and is easier to administer than the accrual method.
The cash method generally recognizes income when payment is received and expenses when they're paid, although inventory rules can create additional considerations.
Choosing the proper accounting method can affect not only inventory deductions but also cash flow, tax planning opportunities, and year-end strategies.
Common Inventory Mistakes
We've seen several mistakes business owners make when handling inventory:
- Assuming every inventory purchase is immediately deductible.
- Using inconsistent bookkeeping methods.
- Mixing inventory with ordinary supplies.
- Keeping incomplete inventory records.
- Waiting until tax season to organize inventory information.
Inventory accounting works best when your bookkeeping system is accurate throughout the year—not just when it's time to prepare your tax return.
Inventory Planning Starts Before Year-End
The decisions you make throughout the year often determine how much flexibility you have at tax time.
Reviewing inventory purchases, bookkeeping procedures, accounting methods, and expected year-end income before December 31 allows you to identify opportunities that simply aren't available after the year closes.
Inventory planning should be part of your overall tax strategy - not an afterthought during tax preparation.
If you're launching a new company, you may also find our article How Much Can You Deduct When Starting a Business? helpful, along with Tax Deductions When Starting a Business, which discusses many of the expenses new business owners commonly overlook.
How Ken-Mar Tax Can Help
Inventory accounting isn't just about keeping track of products—it's about choosing accounting methods and tax strategies that support the long-term success of your business.
At Ken-Mar Tax, we work with business owners to determine the accounting methods, bookkeeping procedures, and tax planning strategies that make the most sense for their operations.
Our Small Business Tax Services include proactive planning designed to help business owners reduce taxes while maintaining accurate financial records.
If you're unsure whether your business qualifies for simplified inventory accounting—or whether your current bookkeeping methods are costing you deductions - our Small Business Tax Consultants can help you evaluate your options and develop a tax strategy that fits your business.
Small Business Tax Services
As an expert in small business tax services and tax consulting Ken-Mar Tax eats, sleeps and breathes small business tax strategies. Being an enrolled agent allows founder, Ken Weinberg, to represent you to the IRS - something only a CPA, tax attorney and Enrolled Agent can do. EAs are the only federally licensed tax practitioners who specialize in taxation and also have unlimited rights to represent taxpayers before the IRS. It also means he is continuously being updated on the new IRS tax codes and taking classes from the IRS that provide guidance on how to file returns so that they are not "flagged."
When you get your taxes prepared by Ken Mar Tax you also have the option to purchase the Tax Audit Protection Plan to avoid the extra costs of paying for audit representation. If you are audited by the IRS, State of Ohio or local taxing authorities, Ken-Mar Tax will meet with the taxing authorities on your behalf to negotiate a settlement for you. The fee covers all costs up to the Appeals level, including up to 15 hours of correspondence with the auditing party – either the IRS, State of Ohio or locality.
