About Home Office Deduction Calculator

Homeofficedeductioncalculator.com exists because the home office deduction has two completely different calculation methods — simplified ($5/sq ft up to 300 sq ft) and actual expense (a percentage of your real rent, utilities, insurance, and depreciation) — and most freelancers never compare both to see which one actually nets them a bigger deduction.

We built this after watching self-employed filers default to whichever method their tax software suggested first, without realizing the other method could be worth hundreds or thousands more depending on their actual home costs and office size. This tool runs both methods side-by-side with your real numbers so you can see which wins before you file.

It's built and maintained by Officina Systems, part of the IndieOwner family of free calculators for independent creators and small business owners. No account, no spreadsheet — enter your numbers and see where you stand.

Contact

Questions or feedback about this tool? Reach us at [email protected].