IRS form guide · Last reviewed August 3, 2026
Form 8829: Expenses for Business Use of Your Home Explained
Calculates an actual-method home-office deduction and related limitations for qualifying business use.
Check the current revision
Current official instructions control. Confirm the applicable tax period, final revision, instructions, recent developments, and any post-release corrections on IRS.gov. Do not use a draft as a final form.
What Form 8829 is generally used for
Calculates an actual-method home-office deduction and related limitations for qualifying business use.
Who may encounter it
Certain Schedule C filers using the actual-expense method may encounter it. The form is not required merely because it appears in this guide.
When it may be relevant
Relevance depends on the applicable tax year, filing status, income types, transactions, elections, and attached-form instructions. Review the official scope before deciding whether it belongs in a return.
Information to gather
Office and home area, direct expenses, indirect home costs, depreciation information, and business-income records.
How it connects to other forms
The result may connect to Schedule C; Form 4562 may matter for depreciation.
Common misunderstandings
The form does not establish regular-and-exclusive-use eligibility, and the simplified method follows a different workflow.
A form label is not an eligibility conclusion, and no calculator on this site supplies a line-by-line filing result.
Important limitations
This guide omits many definitions, exceptions, elections, worksheets, attachments, and special situations. It does not determine filing requirements or tell a visitor what to enter on a line.
Hypothetical example
Hypothetical: A consultant with a qualifying dedicated office may allocate indirect costs by supported business-use percentage and separately track direct costs. The example is educational and is not an actual taxpayer outcome.
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Official IRS sources
- IRS About Form 8829 page: current form, instructions, revisions, and developments
- IRS Forms, Instructions and Publications directory
This site hosts no form copy. Check the About page for separate instructions where available and for post-release changes. Last reviewed August 3, 2026.
Frequently asked questions
Does everyone file Form 8829?
No. Filing relevance depends on the current instructions and the taxpayer’s complete facts.
Can I complete Form 8829 on this website?
No. This site does not create, file, or store tax forms or identity information.
Which revision should I use?
Use the revision required for the applicable tax period and check the IRS About page for current instructions and developments.
Tax disclaimer
General education only. This guide does not prepare or file a return, determine whether a form is required, collect taxpayer identifiers, or replace current IRS instructions or qualified professional advice.