Hot off the presses--here's an article that highlights the volatility of the situation. Unfortunately, it seems to make clear that for many this will be more difficult than expected just hours ago.
Overall, a real hassle for thousands (millions?) who have tried to pay early, and another example of how this law arbitrarily punishes some while rewarding others:
https://www.washingtonpost.com/news/...=.4e15b1b8fdaf