I-129: $325 -> $460 (H-1B and other workers)
I-129F: $340 -> $535 (fiance)
I-130: $420 -> $535 (spouse, parent, child petition)
I-140: $580 -> $700 (immigrant worker)
I-485: $985 -> $1140 (green card application)
I-601: $585 -> $930 (waiver)
N-400: $595 -> $640 (naturalization)
See the full list here: https://www.uscis.gov/forms/our-fees
If you've been waiting to file - save money and get it in before December 23!