For a small business owner deciding between working from home and renting space, the tax treatment differs meaningfully. Rent on commercial space is generally a straightforward deductible business expense. The home office deduction is available and carries specific requirements that are frequently misunderstood in both directions.
Rented commercial space
Rent paid for business premises is generally an ordinary and necessary business expense, deductible in full. So are the associated costs — utilities for the space, insurance, and improvements subject to the applicable rules for capitalizing and depreciating them.
The documentation is straightforward: a lease and payment records. There is little ambiguity.
The home office deduction
Available when specific conditions are met. The two that matter most:
Exclusive use. The space must generally be used exclusively for business. A room that also serves as a guest bedroom, or a desk in a corner of a family room that the family uses, generally does not satisfy this. The requirement is stricter than most people assume, and it is where claims most often fail.
Regular use as your principal place of business, or a place where you meet clients in the normal course of business, or a separate structure used in connection with the business. There are provisions covering situations where administrative work is done at home even when other work happens elsewhere.
There are also specific exceptions to the exclusive use requirement for particular circumstances, and the rules differ for employees versus self-employed individuals in ways that have changed over time.
Two methods
The simplified method uses a prescribed rate per square foot of qualifying space, up to a maximum square footage. It requires far less recordkeeping and produces a straightforward number.
The regular method allocates actual home expenses — mortgage interest or rent, utilities, insurance, repairs, depreciation — by the business-use percentage of the home. More recordkeeping, and it can produce a larger deduction, particularly where housing costs are high.
Which produces the better result depends on your numbers, and it can be calculated both ways.
The depreciation consideration
Under the regular method, depreciation on the business portion of a home you own is part of the calculation. That has implications when the home is eventually sold, since depreciation claimed on the business portion generally affects the treatment of gain.
This is worth understanding before choosing a method rather than discovering it at sale. It does not necessarily mean the regular method is wrong — it means the decision should account for it.
The limitation
The home office deduction is generally limited by the income from the business. It cannot be used to create or increase a loss, with provisions for carrying forward disallowed amounts.
The mileage consequence
An often-missed benefit: if your home office qualifies as your principal place of business, trips from there to other business locations may be treated as business mileage rather than as nondeductible commuting.
For someone who travels to clients or job sites regularly, that can be worth more than the home office deduction itself. It is one of the genuinely underappreciated aspects of qualifying.
The non-tax factors matter too
Cost, focus, client perception, space for equipment or inventory, room to hire, and the practical effect on household life all belong in the decision. The tax treatment is one input rather than the deciding factor.
Renting space you do not need in order to get a deduction is the same error as buying equipment for a write-off — you spend a dollar to save a fraction of it.
Where we fit
RD Precision Tax Service works with small business owners and self-employed people across Weatherford and Parker County. If you are weighing this, or if you have been claiming a home office and are not certain the requirements are met, that is worth reviewing specifically.
This article is general information, not tax advice, and tax rules change from year to year. Confirm current-year figures and talk with a professional about your specific situation before acting.
Common questions
Does a desk in my living room qualify for the home office deduction?
Generally not. The exclusive use requirement means the space must be used exclusively for business, and a desk in a room the household also uses typically does not satisfy it. This requirement is stricter than most people assume and it is where claims most often fail.
Which home office method should I use?
The simplified method uses a prescribed rate per square foot with far less recordkeeping. The regular method allocates actual home expenses by business-use percentage and can produce a larger deduction, particularly where housing costs are high. It can be calculated both ways, and the depreciation implications of the regular method are worth understanding before choosing.
Does claiming a home office cause problems when I sell my house?
Under the regular method, depreciation claimed on the business portion generally affects the treatment of gain when the home is sold. That does not make the regular method wrong — it means the decision should account for it rather than discovering it at sale.
Does a home office affect my mileage deduction?
It can, favorably. If the home office qualifies as your principal place of business, trips from there to other business locations may be treated as business mileage rather than nondeductible commuting. For someone who travels to clients regularly, that is sometimes worth more than the home office deduction itself.
Have a question about your situation?
Robert prepares returns for individuals, contractors, and small business owners across Weatherford, Aledo, Willow Park, Springtown, Mineral Wells, and the rest of Parker County. Bring your questions — the first conversation is free.