The amount of rent deductible for a home office is based on the percentage of your home’s square footage dedicated to business use. For example, if your home office occupies 15% of your home, you can deduct 15% of your total rent payments. The space must be used exclusively and regularly for business activities, according to IRS rules. Accurate documentation, such as lease agreements and measurements of the office space, is necessary to substantiate this deduction. This ensures compliance with IRS requirements and helps to maximize your deduction. Additionally, keeping records will protect you in case of an IRS audit. If you work from home and meet the criteria, this deduction can significantly reduce your taxable income.