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Schedule C line lookup

Where does a password manager go on Sch C?

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

A password manager subscription belongs on Line 18, office expense.

Why line 18

A password manager protects the accounts the business runs on, which makes it ordinary office overhead on line 18, and a plan billed monthly or yearly is a period cost. A family plan that also covers the household is deductible only to the extent it serves the business, so a business tier or a team seat is easier to support than a split of a family plan.

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 password manager subscription lands on Line 18 without you sorting it.

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What a password manager subscription is confused with

Line 27a, other expenses
Security services beyond password storage, an identity monitoring retainer for instance, read better itemised in Part V and carried to line 27a than as office expense.
not deductible, not deductible
A family plan bought for the household and never used for business logins is a personal cost with no deduction.

Examples that belong on line 18

What does not belong here

What to keep

Keep the annual receipt and, for a team plan, the seat list. An invoice in the business name on a business tier is the easiest version of this to defend.

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 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
cloud storageSchedule 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 a password manager subscription lands on Line 18 without you sorting it.

Start for free

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