how do i figure my cost basis of stocks sold when my company has also contributed shares?

Question

I have the whole transaction history of amounts paid via payroll deduction and company contribution and reinvested dividends. For every payroll deduction of x amount, the employer contributes x amount.

Answer 1

Your basis in the shares you purchased is what you paid for them. As far as the contributed shares, I am assuming when you say "my company" the company is your employer. If so and there was an outright stock grant, find out if that grant was added to your wage base and W-2. If so then the basis in those shares is the value they added to your wage base.

EDIT: I think it best I not guess. If they did not put the stock's value on your W-2, and you are still working for the comapny contact the HR department and see if they have a FAQ that will explain the company match.

Answer 2

Your basis would be what YOU paid, not including the amount that your company contributed unless you were taxed on their contribution.