Investors & landlords

You are correct, it is the same asset class (Forms 1099-B). Ownership does affect the outcome.

Pennsylvania also has no provisions for the carryover of losses from one tax year to another year. Furthermore, Pennsylvania does not allow an offset of loss against gain from one class of income to another or between two taxpayers (i.e., spouses). This could be a reason you do not see what you are looking for.  PA Overview of Capital Gains and Losses

The loss should offset the gain to arrive at the net result. The Pennsylvania (PA) return does allow you to make adjustments on your return as you go step by step through the tax return interview and it allows you to select the owner of the property/stock or mutual fund.

I selected joint ownership, my return comes out accurately based on the images below. Be sure to 'Preview your PA Tax Summary' by using the steps below.