Answer:
Joe Hubb can use Form 8829 to calculate his office in the home deduction.
Step-by-step explanation:
Based on the scenario, Joe is a self-employed taxpayer. Self-employed taxpayers who are filing IRS Schedule C, Profit or Loss from Business (as Sole Proprietorship) calculate their 'Expenses for Business Use of Home' on Form 8829. The expenses that are deductible include costs of electricity, heating, maintenance, cleaning supplies, and minor repairs, but only the business-use portions.