Thank you so much for the clue. That really solves my issue and it's my fault. There does exist one payment to RMV in MA for a recent registration renewal.
When filing the tax return, I noticed there is one question about previous year's vehicle's registration renewal, and I did a check and find it's almost due, so paying it nearly the same time as the e-filing.
Sorry for this silly question and this really solves my puzzles. Really appreciate your help!
