A slight problem - which can develop into a BIG problem - is if you periodically pay off any new Purchases during the Month - to keep your balance down... Which I routinely DO. So I don't have a huge surprise when my statement comes out. Chase recently offered me "My Chase Plan" with NO monthly fee. I ended up taking 'advantage' of that - and made a large $10,850 dollar purchase. When the first statement came out - I was surprised to find a very recent vet bill (which I had already 'paid off' on the Statement. The Vet bill posted just a couple of days before Statement closing. Called Chase; didn't get a good answer. Thought it was because it posted just around the Statement closing date. Now, my next statement - and I have an over $5K 'to avoid interest' billing... Turns out - any payments you make between statements - are applied to the 'My Chase Plan' balance (if you have no purchases being charged interest). This is because that is the 'only' balance that presently exists - because that was on your last statement. Your purchases have not yet posted onto a Statement - so any payments made to cover those purchases - do NOT go to the purchases - they go to the "My Chase Plan". I am extremely fortunate that I have the funds to pay the current statement - but if you have a "My Chase Plan" and you routinely pay OFF your balance - do NOT make extra payments between statements thinking they will 'cover' recent purchases. They will NOT - and you will still OWE for all of those purchases at your next statement - just your "My Chase Plan" balance will have been reduced more - but you will of course still also owe that Monthly fee...