Software-as-a -service sales tax solutions provide true, accurate calculations via a remote, easily accessed sales decision engine. Sometimes also called software-as -a -go, this solution is made available through the Internet. On-demand sales tax solutions typically require the utilization of specific hardware and software which are physically present in-house.

These sales tax solutions use an accounting software package that will perform the tedious work of manually entering sales tax data. The advantage of on-demand sales tax solutions is that the user does not have to wait for the data to be available in tabulated reports from an on-site sales representative. Most on-demand sales tax solutions will provide the user with the option to download and print a report. These reports can be used in conjunction with IRS wage garnishment estimates, IRS installment agreement estimates, or any other IRS-approved payment calculator. Also, they can be used in conjunction with tax debt resolution services.