ssgumby - 3:35 pm on Jun 29, 2011 (gmt 0)
With regards to taxes (here in US). Building the shipping cost into the product cost will only matter with regards to taxes in sales tax. You can most definitely still use the shipping cost as a business expense. Your shipping charges paid to the shipping vendor are an above the line item that can be factored into COGS and reduce your overall taxes owed.