Reducing state taxes

I am trying to figure out if there is a way to reduce my Louisiana state tax.  I have very low federal tax because most of my income was from qualified dividends and capital gains but was low enough to keep me within the 15% tax bracket and thus zero tax on those gains.  But on my state return, I have a very large tax bill due to the state not having the same tax rules with regard to dividends and capital gains.

 

Is there something that I can do to reduce those state taxes next year or even on last year's tax return that I am working on now?

 

Thanks.