How are ETH gas fees handled?

How are these handled in the program?

My gas fees are substantial this year, and I want to deduct them from my taxes, or factor them into my cost basis. I have not seen anyone answer this question yet. Please help

When it comes to cryptocurrency, you pay taxes on capital gains. That includes not only selling it for a currency, but using it to make a purchase or even trading it for other cryptocurrencies. You factor in the total capital gains, which would deduct any associated costs, that being gas fees.

According to
“You can either increase your cost basis or reduce your proceeds to reflect these fees.”