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Schedule C line lookup

Where do clinic disposables go on Schedule C?

Updated October 10, 2026 路 Schedule C, Line 22
Short answer Schedule C, Line 22 Supplies

Clinic and lab disposables belongs on Line 22, supplies.

Why line 22

Gloves, needles, swabs, gauze, test strips and sharps bins are consumed delivering care, so they are supplies on line 22. They are not held as stock for sale and nothing leaves with the patient as a product they bought separately, which keeps them out of Part III. Items you dispense and charge for as goods, a brace or a supplement sold over the counter for instance, are merchandise and belong in Part III if you account for inventory.

Stop looking up lines one at a time. ClaryBook totals your year into an IRS Schedule C worksheet in form order, Part I and Part II line by line, so clinic and lab disposables lands on Line 22 without you sorting it.

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What clinic and lab disposables is confused with

Part III line 36, part iii line 36, purchases less personal use
Products you sell to patients over the counter are Part III purchases, while disposables consumed during a treatment are line 22.
Line 18, office expense
Reception stationery, charts and printer paper are office expense on line 18, while clinical consumables are line 22.
Line 13, depreciation and section 179 expense deduction
An autoclave, a chair or a diagnostic machine lasts more than a year and is a capital asset reaching line 13.

Examples that belong on line 22

What does not belong here

What to keep

Keep the medical supplier invoices and keep clinical consumables separate from anything you resell. Waste disposal contracts should be invoiced separately from the consumables themselves.

Other expenses on line 22

ExpenseLine
a dog groomer's shampooSchedule C, Line 22
branded uniforms and workwearSchedule C, Line 22
cleaning chemicals and clothsSchedule C, Line 22
materials a tradesperson consumes on a jobSchedule C, Line 22
memory cards for a cameraSchedule C, Line 22
packaging and shipping boxesSchedule C, Line 22
PPE, work gloves and safety bootsSchedule C, Line 22
salon color and product used on clientsSchedule C, Line 22
small tools under the de minimis thresholdSchedule C, Line 22

Related lookups

Sources

This page explains how Schedule C lines work. It is general information, not tax advice for your situation. If an expense is large or the answer turns on a fact about your business, confirm it with your tax preparer.


Looking for a different expense? The full Schedule C line lookup has every line from 8 to 27 with the expenses that belong on each, and Schedule C expense categories walks the whole form in order.

Stop looking up lines one at a time. ClaryBook totals your year into an IRS Schedule C worksheet in form order, Part I and Part II line by line, so clinic and lab disposables lands on Line 22 without you sorting it.

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