Yes, a 1099 is based on a calendar year, not a fiscal year.
However, your statement of "I had to file 1099" concerns me a bit.
Is this a C-corporation, S-corporation, or a Partnership?
Is it a 1099-MISC, or is it some other type of 1099?
Who did the business issue the 1099 issued to?
You will also need to file them for the 2016 year. If you use the Business version of TurboTax, you can buy that now and file the new ones from that program.