1. To hold one responsible or accountable for something. Often used in passive constructions. As a customer support representative, just be aware that customers are going to tax you with any and all issues they have with the service. I'm used to being taxed with the mistakes of my subordinates.

2. To accuse one of something; to lay blame on one for something. Often used in passive constructions. Police taxed him with aggravated assault and public endangerment. He was taxed with deceiving his clients in order to charge them for things they hadn't asked for.