To see the method that your tax is calculated go to View->Forms from the top menu, At the top of the list of forms you would see 1040 WKS (worksheet) or something similar. There is a section "Tax Smart Worksheet" in this form where you can see the method used for the tax calculation. If it is the Tax table you can get that from IRS Pub 17. Mine used the "Qualified Dividends and Capital Gain Tax worksheet" which is also listed as one of the forms abbreviated "Qual Div/Cap Gn, (if it is used for tax calculation).
