Tax preparation and filing is a time-sensitive process that requires specific knowledge and access to state and local tax agencies and forms. As part of your Tax Administration service, OSG maintains all the necessary forms to properly process and file the appropriate return on your behalf and to ensure that each filing is made in a timely manner. One of the benefits of using OSG is the “insurance policy” you get with our services. This means that you will never pay another penny in penalty or interest while OSG is on watch.