It’s been a long time since I’ve touched this game, so I might be wrong (and I will be unable to check for a few days), but it is possible I made bills increase ever so slightly every day, it seems like a weird limitation past me would put in. That being said, if you’ve bought any camera or lighting upgrades, or are making use of the auto feeder or jiggler, they would for sure increase your bills, but they should more than make up for it in what they give in entertainment value.