Tax question (so yeah I'm just asking for an informed hot take, not actual tax advice).

Friday I took 370 put contracts on QQQ ( $14,000 cost basis give or take) and paid about 80 cents each both ways for approx $600 in commissions/fees.

Sold at a $3150 profit, or $2550 after commissions/fees.

Can someone confirm or deny that the $600 gets added to cost basis for tax purposes? So my cap gains is like 30% of $2550, not $3150?

Again I know its sketchy asking for tax advice, I'm not looking for legal opinions, just trying to sort out the basics.