Originally Posted by ZontarTheThingFromVenus
is the 18-24 month Citi window for both the HH and AA cards together, or is there a separate window for each. I was thinking of alternating closing and opening on yearly basis HH -> AA -> HH -> AA -> .... That would get me 2 years between application dates for both the HH and AA cards.
There are two separate "clocks" at Citi (for personal cards; business cards are different and more complicated so I won't cover those here):
You cannot do more than 2 Citi credit card applications in any 65-day period. Denied applications are counted just as much as approved applications for this clock.
Then, totally seprately, and only for AA (and having nothing do with HH): You cannot apply for another (one or two) Citi AA (personal) card(s) until 12 to 18 to 26 months after your last successful app for any Citi AA (personal) card. It matters not whether you still have that card or not, and this clock is only between AA cards you were approved for before and AA cards you're applying for now.
So the second clock only applies AA->AA.
The first clock is the only one that maters HH->AA, or AA->HH, or HH->HH.
Because of the vast difference between these two clocks, you may be able to do several rounds of HH card apps in between each pair of AA card apps (since you can applly for HH cards as often as 2 every 65 days, though that only makes sense if you can satisfy the spend requirement that quickly).