Did you use the QEF Quick Employer Forms Online program?  Then you can efile it in January when they open efiling.

If you used the built in Desktop W2/1098 Reporter on your computer you have to print and mail the 1096 and 1099 forms to the IRS.

I used the downloaded TT for Business but when it asked for online or desktop, I chose desktop because  I wanted to make sure I could have a PDF and physical copies when done.  It appears as though that may have been a mistake.  I didn't see an address on the form to mail in the 1096 and copies ... the only one it lists doesn't appear to be for WA ... but only for other states listed.

If you don’t mind typing them all again you could go back and do them again in the Online version so you can efile.  You can save the pdf from online.

If you don't use efile, here are the instructions for filing Forms 1099-MISC and 1096
For each Form 1099-MISC, you should have the following copies:
Copy A for the Internal Revenue Service (two different people per page);
Copies B, C, and 1:
…….(Copy B for the recipient);
…….(Copy C for your records); and on the same page
…….(Copy 1 for the state tax department, if required).

Include all pages of Copy A with Form 1096 (do not staple), sign Form 1096,
IMPORTANT: Do not cut or separate Forms 1096 or 1099-MISC Copy A, even if a form is blank.

Here’s the 1096 instructions.  It has where to Mail
<a rel="nofollow" target="_blank" href="https://www.irs.gov/pub/irs-pdf/f1096_18.pdf">https://www.irs.gov/pub/irs-pdf/f1096_18.pdf</a>