Whether the taxpayer could deduct actual travel, clothing, internet, equipment, office, books, and media costs as professional expenses.
The claimed expenses were mostly private or employer-related and not sufficiently necessary for earning income; only the flat-rate deduction applied.
Necessary professional expenses are deductible, but the taxpayer did not prove that the disputed items were indispensable or not reasonably avoidable. Several costs were ordinary living expenses, reimbursable by the employer, or could have been covered by school resources.