Note well that if you received a Notice of Assessment from the Pennsylvania Department of Revenue you now have only 60 days to appeal the assessment to the Board of Appeals rather than the former period of 90 days.
The same is true of the next rung of the ladder. You now have only 60 days to appeal a decision of the Board of Appeals to the Pennsylvania Board of Finance and Revenue.
These periods are measured from the date of mailing by the Department and not the date of your receipt. If you receive anything threatening from the Department or anything that you just do not understand, contact your tax professional as soon as possible.