Tax varies from city, county, and state. The break down is $110.00 for the first line, $19.99/line there after. 4 lines is 169.97+ data for newer smart phones at $10.00 per line, so that would be $169.97+$40.00=209.97 if you add insurance it's 4x$11.00 so that is $209.97+$44.00=$253.97 plus tax with th 15% off you go from $209.97 to $193.47 for a $16.50 savings, so with insurance you're at $193.47+$44.00=$237.47 plus tax which can be around 15% of the bill.