This is just an Alliant data point. Not really sure at all this is even worthwhile to post, but here it is FWIW.
Regarding Alliant Visa Signature card at 3%; a very sweet card:
I paid off my card last Tuesday with money which was resting, and HAD BEEN sitting, in my Alliant savings account for a while. IOW, these were not funds new to the credit union; not at all.
Last evening our statements closed.
This morning my payment from last Tuesday still has not impacted my available credit. Admittedly it was a very large payment last Tuesday, one equal to the vast majority of my nominal credit line. But my available credit remains where it was last Tuesday, before the payment.
Stipulated:
I want to acknowledge, based on personal experience, that if I telephoned Alliant (which is a PITA) and so requested that they would restore my credit line straightaway. I have done this a couple of times in the past. So it’s not as if there is refusal to restore my credit line; not at all. It’s just that I’ve not called. Please to not interpret this post as one of complaint. Instead, I’m conducting an experiment.
I decided this time, just for the halibut, to try to determine how long it would take them, in the absence of a telephone call from me, to restore my credit line on their own. Confess I thought statement closing last evening would put things right. Got that wrong. I can hold out a few more days in effort to satisfy my curiosity about this.
Adding to the mystery:
Need to mention that on other occasions, in the past, when I made a payment against my card balance, my credit line was restored quickly, within a day or two, and with no intervention (no telephone call) by myself. However, those were much smaller payments, perhaps only a grand or two, or even less than that.
So does the rapidity of credit line restoration at Alliant relate to the size of your payment, with much larger payments taking longer? I really do not know. Truth is I don’t have a handle on their procedures in this regard at all.