We had a strong summer and now the cash is gone
A busy AC season can put six figures through the bank account and still leave nothing in it by November. The money went to a truck payment, a tax bill on last year's profit, materials bought ahead for the next rush, and payroll that kept running at summer levels into the slow months. None of that shows up as a warning sign until the account is thin and a slow January is staring back at you.
Most shops never separate the cash from a hot July from the cash needed to carry payroll through a quiet February. Without that separation, every strong season feels like proof the business can support the spending it produced, right up until the season ends and the spending is still there.
Shops that spend the summer's cash as it comes in typically end up drawing on a credit card or line of credit at 18 to 24 percent just to cover January and February payroll, interest they would not owe if part of the summer cash had been set aside on purpose.