Fairyloot Late Renewal

I don’t want to waste one of my skips on books I would actually read, so with that in mind, I don’t want to skip march if avoidable. My problem comes in that I don’t have the money for my renewal quite yet, but should get my tax return in the first week of march. I have the combo box that should renew on the 3rd. If I don’t skip, will it let me pay my renewal up to a week late or am I risking my sub? Anybody have any experience with this?