I received this email message today:   The IRS recently issued Notice 2015-9, providing limited penalty relief for qualified tax returns which have a repayment of the advanced premium tax credit. Generally, taxpayers who do not pay their entire tax liability by the return due date would be penalized under §6651(a)(2); however, taxpayers who have a balance due attributable to the reconciliation of the premium tax credit could have these penalties abated for the 2014 tax year.  Additionally, t