Methods, devices and systems for taxable basis implementation

摘要: A computer-implemented method of determining taxable basis amounts for a plurality applicable taxes transaction line having amount includes steps providing and evaluating formulae, one formula each the that at least inclusive exclusive taxes. Each list may be compounded with or more taxes, surcharge neither nor surcharged; affected by base rate modifier and/or additional charges discounts allocated to line. The formulae configured derive an adjusted such sum tax equals transaction. stored in database. One then selected applied compute transaction, which