After you file

Berkheimer is a authorized collector of taxes for many PA municipalities.  They most often collect the PA local earned income tax, the local services tax, and any local per capita tax. The TurboTax program does not prepare any PA local earned income tax returns. TurboTax can be used to prepare the state income tax returns.  These are two completely separate returns. PA does share information from the PA income tax returns with local municipalities.  Your 2014 PA income tax return may have had income showing on your PA 40, line 1 or line 4, triggering the letter.  My advice is to check your copy of the PA 2014 state return and call or visit Berkheimer to discuss the reason for the letter.
Did you have an interest in a Subchapter S corporation?  Profit from a sub S (line 1 of the RK1) would be reported on your PA40 as business income and is the source of many erroneous letters from local tax authorities.
 Did you file a local earned income tax return for 2014? 
  Did you have any self-employment income in 2014?