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Schedule C line lookup

Where does cloud storage go on Schedule C?

Updated October 10, 2026 路 Schedule C, Line 18
Short answer Schedule C, Line 18 Office expense

Cloud storage belongs on Line 18, office expense.

Why line 18

A monthly or annual storage plan buys a service for a period, not an asset, so it is office overhead on line 18 and nothing is capitalised. The business has to be the user: deduct only the business share if the same account also holds family photos. The vendor name does not matter, Dropbox, Google Workspace and Backblaze all land on the same line.

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 cloud storage lands on Line 18 without you sorting it.

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What cloud storage is confused with

Line 13, depreciation and section 179 expense deduction
Buying storage hardware, a network drive or a server, is an asset you depreciate on line 13 through Form 4562, while renting space on someone else's hardware by the month is line 18.
Line 8, advertising
If what the plan really buys is marketing, an email campaign platform for instance, the cost is advertising on line 8 even though it arrives as a software bill.

Examples that belong on line 18

What does not belong here

The limit that applies

Only the business-use share is deductible when a plan is shared with personal use.

What to keep

Keep the vendor invoices or the annual receipt email, which show the plan and the period. If the account is shared with the household, write down the basis for the business percentage once and keep applying it.

Other expenses on line 18

ExpenseLine
a desk lampSchedule C, Line 18
a mixed order of supplies and groceriesSchedule C, Line 18
a paper shredderSchedule C, Line 18
a password manager subscriptionSchedule C, Line 18
a PO box rentalSchedule C, Line 18
a software subscriptionSchedule C, Line 18
a virtual mailboxSchedule C, Line 18
a work app subscriptionSchedule C, Line 18
accounting softwareSchedule C, Line 18
office coffeeSchedule C, Line 18
office stationerySchedule C, Line 18
postageSchedule C, Line 18

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 cloud storage lands on Line 18 without you sorting it.

Start for free

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