I'm not an accountant and I definitely don't know taxes properly either, but I do know enough about taxes to know that businesses pay taxes on their net profit (gross income - losses = net profit). Those losses can be payroll costs, costs of goods, shipping and handling costs, rent, loan payments, insurance premiums, equipment purchases and upkeep, travel and lodging expenditures, and so on.

Assuming that the losses are legitimate and can be audited if necessary, this is not tax evasion and to baselessly accuse anyone of it is literally defamation.