Cost Basis Formula:
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Cost basis represents the total investment in a rental property for tax purposes. It includes the original purchase price plus any capital improvements, minus accumulated depreciation.
The calculator uses the cost basis formula:
Where:
Explanation: This calculation determines the adjusted basis used for calculating capital gains when selling the property.
Details: Accurate cost basis is essential for determining taxable gain or loss upon sale, calculating depreciation recapture, and proper tax reporting to the IRS.
Tips: Enter all amounts in dollars. Include only capital improvements (not repairs) and use the total accumulated depreciation from all tax years.
Q1: What qualifies as a capital improvement?
A: Improvements that add value, adapt to new uses, or extend useful life (roof replacement, room additions, major renovations).
Q2: How is depreciation calculated?
A: Residential rental property is depreciated over 27.5 years using the straight-line method.
Q3: What's the difference between repairs and improvements?
A: Repairs maintain current condition (deductible expenses), while improvements enhance value (added to basis).
Q4: When do I need to know my cost basis?
A: When selling the property, calculating rental losses, or determining depreciation recapture tax.
Q5: Can cost basis decrease over time?
A: Yes, through depreciation deductions, but it can increase through capital improvements.