Several trademark fees have increased starting January 2nd. The most notable fee increases are:
(1) TEAS standard filing fee is increased from $275 to $350,
(2) Combined §8 and §15 declarations from $325 to $425 per class, and
(3) Combined §8 declaration and §9 renewals from $425 to $525 per class.
The current USPTO trademark fee schedule can be found in the following link: https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule#Trademark%20Fees.