Please add a feature to ISN to calculate sales tax by zip code. Texas and many other states require reporting of sales tax quarterly. When clients call in to schedule, we need to be able to tell them exactly how much the total will be. Sales tax is usually broken down into 3 charges (state, county, and local taxes added such as school districts). In my area, it varies from 6.25% to 8.25%. 8.25% is the maximum here in Texas, but it varies. We have to keep up with all of this accurately and report/pay it in quarterly. ISN does not have a way to accurately keep up with and report this sales tax. I have a separate pest control company. We have two different pest control scheduling programs, both of them use the zip code of the property to reference tax tables and accurately calculate tax. This tax information is readily available to software developers, one website is: taxrates.com. I've spoken with other home inspectors that use ISN and they would like this addressed as well. ISN is way too good of a program not to have this feature.