This is NOT correct! If you have a significant increase of income, you might
want to pay it via estimated tax which is due every quarter. You do not
need worry about this if
(1) your total tax hold is 90% of your final tax;
(2) your 2013 tax hold is 100% of your last year tax. You might satisfy this
condition this year, it should not be satisfied next year in case you are
as luck as 2013 :) Also, if your family income is more than 150,000, you
need make sure that your 2013 tax hold is 110% of your last year tax.
Google estimated tax to get more knowledge.