Effective Dec. 23, 2016, AOS filing fee will increase from $985 – $1,140. The biometrics will still be the same – $85.
“USCIS reminds applicants and petitioners to pay our new fees with forms postmarked or filed on or after Dec. 23, 2016, or we will not be able to accept the filings. We will only accept previous fees if they are postmarked Dec. 22 or earlier.
Beginning on Dec. 23, you will no longer have a 14-day grace period to correct a failed fee payment. USCIS will immediately reject a benefit request for nonpayment. We will also no longer hold benefit requests submitted without the correct biometric services fees. You must pay biometric services fees, if applicable, at the time of filing. We will reject a benefit request if it is received without the correct biometric services fee, as specified in the form instructions.”
-From USCIS
See USCIS fee for more infos.