Starting a party rental business is one of the most approachable ways to build a six-figure local service company, because demand is steady, the inventory holds its value, and a single bounce house or table-and-chair package can pay for itself in 15 to 25 rentals. The hard part is not the idea — it is sequencing the startup so you do not sink your first $10,000 into the wrong inventory or spend your first season buried in text-message bookings. This guide walks through exactly how to start a party rental business in 2026, in the order that actually matters.