We're worried a busy install season will make us miss a payroll tax deposit
Payroll tax deposits follow strict schedules, either monthly or semi-weekly, and the schedule can change as your crew grows during the summer AC rush. When an owner is running calls and hiring seasonal help at the same time, tracking which deposit schedule applies and confirming the money actually went out on time is easy to let slip.
Even a single late deposit, sometimes by just a day, triggers an IRS penalty notice, and most shops don't find out until that notice shows up weeks later.
The failure-to-deposit penalty starts at 2% for deposits one to five days late and climbs as high as 15% the longer it goes unpaid, with interest compounding daily on top, money that comes straight out of the season's profit.