I've been payng a $20 fee to e-file a state return, today I was charged $25, why? When did the rate go up?

The early prices expired on March 1.  They do every year.  So it should have been $25 last night too.

But there is a new error.  Please sign up on this new Desktop state efile error FAQ

https://ttlc.intuit.com/community/tax-topics/help/why-am-i-not-able-to-e-file-my-state-return-after-filing-my-federal-return/00/2064566

Did you just update your program since March 1 or 4?  The updates come out on Thursdays so March 4 the Desktop price changed.  Even though it said $20 it probably charged you the $25.

Thanks, I haven't used the "paid" state e-file before this year and didn't realize it had a promo time. and then went up in price. Also never saw anything saying anything about the price increase.

I was up to date, the screens all said $20 right until the moment had to hit pay.