Maintaining a private jet in 2026 is an immense financial commitment, with annual costs typically ranging from $500,000 to $1 million for a mid-size aircraft. This "maintenance" figure includes both fixed and variable costs. Fixed costs cover hangar fees ($30k–$100k/year), insurance ($15k–$80k/year), and crew salaries ($200k–$400k for a pilot and co-pilot). Variable costs depend on flight hours and include fuel, engine "reserves" (saving for a $1M+ overhaul every few thousand hours), and routine inspections. Even if the jet never leaves the ground, you must pay for "calendar-based" inspections required by aviation authorities to keep the aircraft airworthy. In 2026, many owners utilize Aircraft Management Companies to handle the logistics of maintenance and crew, which adds an additional administrative fee of $5k to $10k per month. Essentially, the "rule of thumb" in 2026 remains that if you cannot afford to spend at least 10–15% of the aircraft's initial purchase price every year on upkeep, ownership is likely not sustainable.