The home office deduction lets a self-employed Floridian write off the portion of the home used regularly and exclusively for business. The IRS offers two methods: the simplified method ($5 per square foot up to a 300 sq ft cap, $1,500 max, no records required) and the actual expense method (business-use percentage applied to real expenses including mortgage interest, property tax, homeowners insurance, utilities, repairs, and 39-year straight-line depreciation, no cap). For a 12x12 office (144 sq ft, 8.2% business use) in a 1,750 sq ft single-family home, the simplified method produces a $720 deduction while the actual method commonly produces $1,500-$2,000 plus depreciation — roughly 2-3x more. Florida has no state income tax, so the deduction reduces only federal taxable income, but for self-employed filers it also reduces self-employment tax (15.3% on the first $176,100 of net earnings). The exclusive-use rule disqualifies most casual claims: shared spaces (kids' homework, guest sleeping, family TV) eliminate the deduction entirely. S-Corp owners cannot take the deduction directly because IRC §280A(c)(6) blocks rent paid to an employee for use of their home; the correct strategy is a written accountable plan that reimburses the owner-employee tax-free for the business-use portion of home expenses, deductible by the S-Corp and not income to the owner. Common mistakes include skipping the deduction over outdated audit-trigger fears, mismeasuring exclusive square footage, paying yourself rent on an S-Corp instead of running an accountable plan, failing to update calculations after a renovation, and overlooking depreciation recapture on home sale.