Fuel?

If I'm going to take the standard milage deduction on my business truck how should I record the fuel and insurance, etc. In QuickBooks?

 

I'm not an expert in the US, but in short, you wouldn't. Because you are taking a standard deduction/reimbursement per mile, this includes all costs, fuel, insurance, repairs, etc. So fuel and insurance would be a 'personal' expense and only the mileage fees would be deductible.