Deductions · Free calculator2026 rules

Home-office deduction

Your home-office deduction figured both ways, simplified and actual cost, and which one saves more. No account needed.

Your numbers

Answer each Yes/No question, then fill in the amounts that appear. Use 0 only when an amount is truly zero. Want to see how it works first? Load example numbers below.

Do you use this space only for your business, on a regular basis?

It must also be your main place of business, a place where you meet clients, or a separate building. Employees can’t take this deduction. A daycare, inventory storage, shared space or a space that changes size needs a different calculation.

YesNo

How many square feet do you use only for your business? (sq ft)

Measure length × width. For example, a 10 × 15 foot room is 150. Only space used regularly and only for business counts. The simplified method allows at most 300.

What is your business profit before the home office deduction? (dollars)

Business income minus all your other business costs. For example, 60,000. The deduction can’t be more than this.

How many months in 2026 did you use this space for business? (months)

Count a month only if you used the space for business on 15 days or more. For example, 12.

Do you want to compare with your actual home costs?

The simplified method is $5 per square foot, up to $1,500. The actual-cost method deducts the office share of your real home costs and often gives more for a large or costly home. We show both and which one wins.

YesNo

I use this space regularly and only for my business, for the months I entered. It is my main place of business, a place I meet clients, or a separate building.

Your answer shows up here.

Answer the questions, then press Calculate.
Or load example numbers to see how it works.

Free · no sign-up needed

Assumptions, sources & limitations

Planning estimates only. Not a tax return, filing, payment, lending quote or personalized advice. Results depend on complete and accurate inputs. No guarantee of savings or penalty protection. Tax figures checked October 31, 2026; changes and special rules may apply. This initial release needs firm validation before client reliance.