<h1>CBDT extends advance tax deadline to March 18, 2014, due to limited bank hours on March 15. No interest penalty.</h1> The Central Board of Direct Taxes (CBDT) has extended the deadline for the final installment of advance tax for the financial year 2013-14 from March 15, 2014, to March 18, 2014. This extension aims to accommodate taxpayers, as banks will only be open for a half day on March 15, a Saturday. Taxpayers can make their payments at authorized bank branches, either electronically or physically, without incurring any interest for the delay, provided they complete the payment by the new deadline of March 18, 2014.