I just did a dummy return and it seems to work. Reading the F1 at the check box for MS QSBS is see the stock must be held 3 years or more. The gain shows on page 1 line 25, then page 5 line 27 as 3%
Check for the latest update
From F1
Massachusetts qualified small business stock
MA
Dispositions
Screen 17; Code
1005
Select the box if the disposition
is Massachusetts qualified small business stock.
Effective for tax years beginning on or
after January 1, 2011, Massachusetts qualified small business stock is taxed at
a rate of 3% instead of 5.1%. In order to qualify for the 3% rate, investments
must have been made within five years of the corporation's date of incorporation
and must be in stock that generally satisfies the definition of "qualified small
business stock" under IRC Section 1202 (c), other than the requirement that the
stock be stock of a C corporation. In addition, the stock must be held for three
years or more and the investments must be in a corporation which (a) is
domiciled in Massachusetts, (b) is incorporated on or after January 1, 2011, (c)
has less than $50 million in assets at the time of investment, and (d) complies
with certain of the "active business" requirements of Section 1202 of the
Internal Revenue Code, i.e., Section
1202 (e)(1), (e)(2), (e)(5), and (e)(6).