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Schedule C line lookup

Where does a trailer go on Schedule C?

Updated October 10, 2026 路 Schedule C, Line 13
Short answer Schedule C, Line 13 Depreciation and section 179 expense deduction

A trailer belongs on Line 13, depreciation and section 179 expense deduction.

Why line 13

A trailer is equipment you will use for years, so its business-use cost is capitalised and recovered on line 13 through Form 4562, often in full under a section 179 election. A trailer is not a passenger vehicle, so the luxury auto depreciation caps that limit a car or small truck do not apply to it, though the business use percentage still does. Registration, tyres and repairs on the trailer are current expenses on their own lines, not additions to its cost.

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 a trailer lands on Line 13 without you sorting it.

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What a trailer is confused with

Line 9, car and truck expenses
The tow vehicle may be on line 9 under the standard mileage rate, but the trailer is a separate asset and the mileage rate does not cover it.
Line 20a, rent or lease of vehicles, machinery and equipment
A trailer hired by the day or week is equipment rent on line 20a.
Line 21, repairs and maintenance
New tyres, brake work and deck repairs keep the trailer working, so they are repairs on line 21.

Examples that belong on line 13

What does not belong here

The limit that applies

Trailers are not passenger automobiles, so the annual luxury auto depreciation limits do not apply, but a section 179 election still depends on business use staying above half.

What to keep

Keep the bill of sale, the title or registration, and the date placed in service. If the trailer is also used personally, keep a use log to support the business percentage.

Other expenses on line 13

ExpenseLine
a business signSchedule C, Line 13
a camera and lensesSchedule C, Line 13
a desk and office chairSchedule C, Line 13
a laptop or computerSchedule C, Line 13
a laptop used 70 percent for workSchedule C, Line 13
a phone handsetSchedule C, Line 13
capital expendituresSchedule C, Line 13
commercial kitchen equipmentSchedule C, Line 13
software bought outrightSchedule C, Line 13
tools over a few hundred dollarsSchedule C, Line 13

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 a trailer lands on Line 13 without you sorting it.

Start for free

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