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Hobby expenses
Most hobbies — even those that earn you income — also cost money. Prior to the 2018 tax year, you could deduct hobby expenses equal to your hobby income. For tax years after 2018, this deduction is no longer available.
Since tax reform has significantly increased the standard deduction for 2018, you may be thinking you’ll likely lose the ability to deduct hobby expenses if it no longer makes sense for you to itemize. In fact, it doesn’t matter whether you do or don’t itemize — you’ve lost the deduction for hobby expenses in 2018 anyway because tax reform removed the miscellaneous deduction.
“Under the new tax reform bill, there is no place to deduct the expenses, so income will be recognized but the expense will not, starting in 2018,” says Alan Pinck, an enrolled agent and founder of A. Pinck & Associates, San Jose,
https://www.creditkarma.com/tax/i/hobby-income-taxed/