Looking at my summary of your maryland taxes: why is "contributions" blank? what does "contributions" mean ?

[TerryA]

Those are voluntary charitable contributions you can make right on your Maryland Form 502 or 505. From the 502 instructions:

CHESAPEAKE bAY AND ENDANGERED SPECIES FUND
You  may  contribute  any  amount  you  wish  to  this  fund.  The
amount  contributed  will  reduce  your  refund  or  increase  your
balance due.
DEVELOPMENTAL DISABILITIES SERVICES AND
SUPPORT FUND
You  may  contribute  any  amount  you  wish  to  this  fund.  The
amount  contributed  will  reduce  your  refund  or  increase  your
balance due.
MARYLAND CANCER FUND
You  may  contribute  any  amount  you  wish  to  this  fund.  The
amount  contributed  will  reduce  your  refund  or  increase  your
balance due.
FAIR CAMPAIGN FINANCING FUND
You  may  contribute  any  amount  you  wish  to  this  fund.  The
amount  contributed  will  reduce  your  refund  or  increase  your
balance due.