Personal trainers are inside the 2025 tip deduction: training is a listed tipped occupation, so reported tips deduct from federal taxable income up to $25,000, with or without itemizing, through 2028. Whether that helps you depends less on the law than on how your income is structured.
Gym-employed trainers on a W-2 deduct the tips reported on their wage statement. Independent trainers — those with their own clients, renting gym space, or training through an app — are self-employed: card and app tips arrive on a 1099, cash tips go on your records, and the deduction is capped at the net income of the training business. Only reported tips count.
The deduction reduces federal income tax, not self-employment tax, and phases out above $150,000 of income ($300,000 joint). Independent trainers are the most likely to have missed it in 2025, since software treats a 1099-K as undifferentiated revenue. A 1040-X amendment recovers the difference.