How Does the IRS Verify a Home Office Deduction?

The IRS generally verifies a home office deduction by reviewing your tax return and, if it selects the return for examination, asking for records that support your business use of the space and the expenses you claimed. Depending on the examination, the IRS may request documents, ask questions about how you use the area, or arrange to inspect the property; claiming a deduction does not automatically mean an inspection will occur.

Be prepared to explain where your office is, how often you use it for business, and why it qualifies—for example, whether it is your principal place of business or a place where you regularly meet clients. In most cases, the area must be used both regularly and exclusively for business, so a desk in a room that also serves as a family guest room may not qualify as a dedicated office area; limited exceptions apply to certain uses, such as inventory storage and daycare.

Keep a floor plan or measurements showing the office area and your home’s total area, along with records that establish your business activities, such as invoices, calendars, or appointment logs. If you use the actual expense method, retain receipts, bills, and other records for eligible expenses and your allocation between business and personal use; if you use the simplified method, keep records supporting the qualifying area and its business use.

Review the IRS rules for your circumstances and keep your documentation with your tax records, rather than waiting until the IRS asks for it; a tax professional can help if your use of the space or expense allocation is complicated. For practical ideas on arranging a dedicated workspace, explore our home office setup guide and our Your Ultimate Home Office Guide, a printable eBook and workspace setup planner.