How to calculate cost basis for drip stocks
25 Mar 2011 You bought General Electric shares in 1995 and sold the position last year. Now you're filling out a Schedule D on your tax return and you Learn more about what a cost basis is and how it's determined. Because these changes could impact the cost basis which is used to calculate your gains and losses, it's very important for or acquired on or after January 1, 2011 and include US issued and non-US issued stock. 1, 2011; Mutual funds, DRIPs, ETFs: Jan.