Commercial Fixed Wing
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Flight Crew Last 90 Days 3; Flight Crew Total 15000; Flight Crew Type 2000
Training / Qualification
Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Environment - Non Weather Related; Human Factors
Flight was from ZZZ-ZZZ1 IFR clearance in VMC albeit some smoke.Flight was cleared to 14;000 feet then changed to 13;000 after passing 12;000. Looking directly into the sun through smoky haze I did not get it level at 13;000 and busted. ATC made no comment; perhaps due late change. No traffic in the area and no conflicts. This was the second flight in the airplane in 6 months due to COVID shutdown. I attribute this to my fault with a little help from late altitude change and general overall COVID-19 rust.
Corporate pilot reported an altitude deviation and cited lack of recent flying as a contributing factor.