Interior design pay follows trust, market, and execution ownership.
Interior design pay depends on whether you own trust and execution: client quality, commercial versus residential work, technical skill, procurement, project management, referrals, and the ability to price your judgment instead of selling hours timidly.
National BLS OEWS baseline for BLS interior designers.
The higher number usually requires stronger setting, specialization, seniority, ownership, or scarce proof.
Use this as a rough range, then price your actual route and lost income.