Guess it's too late to worry about it now. Did you use the Online version or the Desktop (Win or Mac) program? I would open the 2018 program again and see if you can figure it out. Like you might have answered a question wrong or gone into the actual forms and checked the wrong box for something? My 2018 Desktop program gave me 3 payments. Go though the state estimated section again. I guess it didn't just take the total due and put it on 2 slips if you came up short when filing now.
