Definition from Wiktionary, the free dictionary
- (accounting, taxation, US) A grouping of security holdings in an account used for enabling the calculation and treatment of the securities for tax compliance and reporting.
2003, Stephen Satchell; Alan Scowcroft, Advances in Portfolio Construction and Implementation, page 128:
- In some countries such as the USA, cost basis must be considered on a tax lot-by-tax lot basis.
- (accounting, real estate, US) An parcel of real property on which property taxes are levied.