Yes. IRAs are taxed on unrelated business income. This may be received if your IRA holds an interest in a master limited partnership (MLP). This income is reported to an IRA owner on Schedule K-1 and must be reported currently on the IRA owner’s tax return; such income is not deferrable. More specifically, unrelated business income over $1,000 triggers unrelated business income tax (UBIT) that is reportable. If you have further questions, contact your IRA custodian or trustee.
Hobby expenses are deductible only up to income from the activity; loss deductions are not allowed.