Did you make the $3600 payments via estimated taxes? If so, you need to enter those payments in the Estimates and other taxes paid section.
I forgot to send in my estamated tax payments but, my state tax form says I don't owe any state taxes.
Did you make estimated tax payments?
If so, you could be entitled to a refund for those estimated tax payments.
Once your return is accepted and processed, you should file an amended return to get credit for those estimates.
Please see the link below for steps on how to amend your return.
Once you are in your return, you will enter those estimated tax payments made in the Federal interview section of TurboTax.