Can delinquent tax returns penalties get abated with Internal Revenue Service and How?
Many people who have not filed delinquent returns and decide to file returns all at one time face an uphill battle of getting penalties and interest abated. There is usually not a reasonable cause for a multitude of years, however there are exceptions. When clients come to us with multiple years we examine all possibilities of  abatement  reasons.  Anytime you have multiple years involved, it would be in your best interest  to consult a professional firm who has been down this road before. Remember, there must be a reasonable cause that fits a good time line of events that is true, reasonable and can be documented with affidavits.
Reasonable cause can be achieved, but must be mapped out carefully. Back years and failure to file is something that IRS looks at very closely. Also know that the most important penalty to get abated is the failure to file penalty because it is usually 25% of the total tax.