Tax Law Update Trusts and Estates Magazine’s David Handler offers a summary of significant IRS updates on a handful of important laws: Internal Revenue Service extends filing and payment deadlines for estates of decedents dying in 2010 — In Notice 2011-76 (Notice), the IRS provided relief for the estates of decedents dying in 2010 (2010 estates). The filing deadline for the Form 706, federal estate and generation-skipping transfer (GST) tax return for 2010 estates was originally Sept. 19. With the new deadline fast approaching, the IRS published this Notice on Sept. 13, providing relief for estates in several respects, including an automatic…