The Internal Revenue Service has seen a surge in recent years of taxpayers underpaying their estimated taxes and paying the penalty for it.       Home  |  Subscribe       SMB Finance: Executive Briefing   Aug 17, 2017       Top Stories   IRS penalizes more taxpayers for underpayment of estimated taxes by MICHAEL COHN   The Internal Revenue Service has seen a surge in recent years of taxpayers underpaying their estimated taxes and paying the penalty for it. READ MORE »   Why business owners don