Business expense guide
Home-Office Expenses for Self-Employed Work
Use this guide to organize potentially relevant costs while keeping personal use, eligibility, reimbursement, and timing limitations visible.
Last reviewed: July 14, 2026
What this category generally includes
costs associated with a workspace that may meet home-office requirements may qualify when the facts establish an appropriate business connection and current requirements are met.
Potentially relevant business expenses
- direct workspace repairs
- supported portions of utilities and housing costs
- workspace insurance allocations
- simplified-method planning amounts
These are organizational examples, not a determination that a particular cost is deductible.
Personal-use and mixed-use considerations
Shared personal spaces generally raise regular-and-exclusive-use concerns. Business-use percentage must be based on supported measurements. A reasonable allocation needs records that explain the chosen business percentage.
Reimbursement considerations
Employer, client, or business reimbursements and shared household payments should be tracked separately. Spending and reimbursement should not be used to claim the same economic cost twice.
Recordkeeping suggestions
Keep measurements, floor plans, photographs where useful, direct-expense receipts, indirect home-cost records, dates of use, and prior depreciation information.
Expenses requiring special treatment
Principal-place-of-business rules, regular and exclusive use, simplified versus actual methods, direct and indirect costs, business-income limitations, depreciation, sale effects, and daycare exceptions require current guidance.
Capitalization and depreciation warning
Long-lived property, improvements, acquired intangible rights, prepaid costs, and other capital items may not receive the same current treatment as routine operating costs. This guide does not calculate depreciation, amortization, basis, or an expensing election.
Eligibility limitations
Eligibility depends on the complete facts, applicable tax year, entity, business purpose, personal use, reimbursement, timing, and current instructions. The site cannot determine legal deductibility.
Hypothetical example
Hypothetical example: A designer measures the workspace and compares simplified and actual methods without assuming eligibility. The example illustrates record organization and does not promise eligibility or tax savings.
Common mistakes
- Assuming every payment in this category qualifies without reviewing its business purpose.
- Claiming a personal, reimbursed, or mixed-use amount in full.
- Keeping only a bank description instead of supporting purpose and treatment.
- Assuming a $1,000 expense normally creates a $1,000 refund; a deduction generally reduces an income measure rather than reimbursing the purchase price.
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Official sources and annual review
Review IRS Self-Employed Individuals Tax Center, Schedule C instructions, and IRS Publication 505, IRS Publication 587. Tax-year values and forms require annual review; this site is not endorsed by the IRS.
Planning scope
Results and examples are planning estimates and hypothetical illustrations. 1099TaxCalcs.com does not prepare or file tax returns and does not replace IRS, SSA, state, or local instructions. Tax rules can change, state and local taxes or specialized rules may be excluded, and eligibility depends on individual facts. Verify current official sources and consider a qualified professional when the decision is material or complex.
Tax disclaimer
This educational page does not determine eligibility or provide individualized tax, legal, accounting, or financial advice. Verify current official instructions and your facts before filing or paying.