I'm retired and don't have a massive income. I'm a credit card deadbeat, as is my wife. We've both had 3 platinum CCs this year and collected sign-on bonuses of 410k. My fee outlay for 225K points was nil while hers was $150. The ANZ cards had no fee for the first year while my other cards had fees but these were refunded after spending around $7000 as we are both bank shareholders.
Not all CCs require the applicant to have large incomes, however as a defined benefit SFR I had to jump through a few hoops on my last application. After providing a letter from my super fund detailing the payments they made to me and a bank statement showing the same payments arriving in my account they were satisfied with this. I realised I was dealing with an amateur CSO as I had to explain how a DB fund worked as this concept seemed to be alien and they wanted to know the opening and closing balances of my fund equity over a 6 month period.
Detailing my share dividend income was a bit of a pain as they wanted evidence of shareholdings and bank statements showing the income. I also had to give evidence as to when dividend payments were made, from their bank!!!! ROFL.
However I advise that one perseveres as the large sign-on points benefit can be quite worthwhile for minimal outlay.
I have a QF Amex fee-free card that I use for my monthly phones and internet deductions so I don't have to remember to change these deductions from one card to another before I cancel.