If you can't forgo a payment such as a minimum payment on a credit card, it can be considered a "need," according to the Warren and Tyagi. Why? Because your credit score will be negatively impacted if you don't pay the minimum. By the same token, if the minimum payment required is ษ and you regularly pay 贄 a month to keep a manageable balance, that additional ๛ isn't a need.
Of course, now you must differentiate between which expenses are "needs" and which are "wants." Basically, any payment that you can forgo with only minor inconveniences such as your cable bill or back_to_school clothing is a want. Any payment that would severely impact your quality of life, such as electricity and prescription medicines, is a need.