What is Cost Basis in Real Estate?
Cost basis is the original value of a property for tax purposes, typically the purchase price plus certain costs associated with acquiring the property. Your cost basis determines how much gain or loss you realize when you sell, and it is the starting point for calculating depreciation deductions on investment properties.
Understanding cost basis is essential for real estate investors because it directly affects your tax liability. A higher cost basis means less taxable gain when you sell. An incorrect basis calculation can lead to overpaying taxes or triggering an IRS audit.
Calculating initial cost basis
Your initial cost basis starts with the purchase price. But it does not stop there. The IRS allows you to add certain acquisition costs: title insurance, recording fees, survey costs, transfer taxes, legal fees related to the purchase, and any seller concessions you paid. Loan origination fees and points paid to obtain financing may also be added to basis in some cases.
For example, if you purchase a property for $250,000 and pay $8,000 in closing costs that qualify for basis inclusion, your initial cost basis is $258,000. This higher basis reduces your taxable gain when you eventually sell.
Adjusted cost basis
Over time, your cost basis gets adjusted. Capital improvements increase your basis. These are significant upgrades that add value, extend the property's life, or adapt it to a new use: a new roof, kitchen renovation, adding a bathroom, HVAC replacement, or structural repairs. Routine maintenance and repairs do not increase basis; they are deducted as current-year expenses.
Depreciation decreases your basis. Each year you claim depreciation on a rental property, your adjusted basis goes down by the depreciation amount. After 10 years of claiming $8,000 annually in depreciation, your basis is reduced by $80,000. This is why capital gains tax on a sale can be higher than you expect.
Cost basis for different acquisition methods
- Inherited property: The basis is typically the fair market value at the date of death (stepped-up basis), which can significantly reduce capital gains for heirs.
- Gifted property: The recipient generally takes the donor's adjusted basis (carryover basis).
- 1031 exchange: The basis of the replacement property is the basis of the relinquished property, adjusted for any boot. This is why 1031 exchanges defer taxes rather than eliminating them.
- Foreclosure or short sale: The basis is typically the amount paid, including any debt assumed or discharged.
Why cost basis matters for wholesalers
Wholesalers who assign contracts have a cost basis in their assignment fee income equal to their marketing and acquisition costs. For wholesalers who double close, the cost basis of the property is the A-to-B purchase price plus closing costs. Understanding basis also helps when communicating with end buyers, who need accurate basis calculations to evaluate deals.