1. I am responsible for forwarding all tax notices from the IRS and state(s) where my business is located to PayPlus as soon as I receive them. These notices may concern late filing, improper filing, tax rate changes, filing frequency changes, among other information. The IRS and states do not notify PayPlus of these changes. NH businesses must forward quarterly unemployment rates. Businesses in other states (except MA) must forward unemployment rates as soon as they are received.