I have an old credit card that I don't normally use. It now has a promo 0% rate on purchases and balance transfers until March 2023. There is a 4% fee for balance transfers. Any ideas on how to utilize this promotion as a right proper mustachian?
My regular card is a sapphire reserve, so I would prefer to use that for my regular spending to keep racking up points (but I'm open to ideas). I have no high interest debt that can be offset by this promotion.
Is there a way to finagle an I-bond purchase with the credit card?
I don't have all the answers, so take this with a grain of salt. But here is what I have started doing.
Get a 0% interest credit card, they usually last 18 months at 0%. Put your expenses on here if possible (utilities, groceries, even large purchases like rent through Venmo, etc.). In the meantime, put whatever you would have spent paying off your credit card into an investment like a Roth IRA or just a regular brokerage account. Or something else - whatever could make a decent profit in 12-18 months. Now might not be the best example since markets are going sideways or down recently, but in an upward-trending market, 18 months of investing can yield potentially hundreds or thousands of dollars in profit.
At the end of the 0% interest period, you could pull out your investment to pay off the credit card. Hopefully you've made a profit - if so, you can bank it. You wouldn't have had this if you had paid off your credit card on time every month.
Another option is to balance transfer to another credit card for a fee (usually 3% or 4%). Many credit cards offer 0% interest on balance transfers for another 12-18 months. If you do this and the money that you would have otherwise have used to pay off the credit card can make at least 3-4% profit, then it might be worth it, if you don't mind the mental stress of keeping tracking of everything.
Again, markets are not doing great right now so this might not make sense for now. But it can make sense in upward markets.
Another consideration is that inflation is at 7%, and your debt will be cheaper in a year than today.