How much of that $1300/month goes to dental and medical insurance? Because with no family to support, I don't see how you aren't paying close to half that in insurance.
But if I did, there's the premium tax credit, which caps premiums to some % of your annual income. For a single person, 322% above the federal poverty line is $40k with a 9.56% cap, so you'd pay no more than $318 in premiums a month and whatever you pay extra (say $182 for a $500 premium) becomes a tax credit.
echo "1.07^15" | bc -l