(Theoretical) Paying credit cards with other credit cards
If you had a CC issuer that allowed you to do bill-pay this way, I suspect the payment would be considered a cash advance that will trigger a fee and a pretty egregious cash advance specific interest rate.  It's not normal for a credit payment portal to accept a credit card as payment. If you were able to do this as a balance transfer, again there would be fees to transfer the balance and you would not earn any rewards from the transferred balance.  I think it's important to note that cash back benefits are effectively paid by merchant fees.  You make a $100 charge, the merchant pays about $2.50 in transaction fee, you're credited with about $1 of cash back (or points or whatever).  Absent a merchant transaction and the associated fee there's no pot of money from which to apply cash back rewards. Three things prevent you from doing this: Credit cards generally don't accept other credit cards as payment.  You could do this with a cash advance or balance transfer, but Cash advances and balance transfers usually have fees associated with them, negating any reward you might earn. Your card might have a no-fee balance transfer promotion going, but Cash advances and balance transfers generally aren't eligible for rewards. "A ""balance transfer"" is paying one credit card with another.  You probably get offers in the mail to do this all of the time.  As other posters have noted, however, this usually comes with finance fees rather than the rewards that you get for normal purchases because it's written into your credit card agreement as a different class of transaction with different rules. I'm not sure if it's urban legend or true, but I have heard stories that suggest there were some ""loop holes"" in the earliest credit card reward plans that allowed for something like what you want.  I doubt that any plan ever allowed exactly what you've written, but I've heard stories about people buying gift cards from merchants and then using the gift cards to pay their bill.  This loop hole (if it ever existed) is closed now, but it would have allowed for essentially infinite generation of rewards at no cost to the cardholder.  The banks and credit card companies have a lot of years of experience at this sort of thing now, so the threshold for you finding something that works and conforms with the cardholder agreement is pretty small."
No.  It means each month the total amount you owe goes up by a factor of (1+0.298/12).  So if you owed $23K at the beginning of the month, at the end you owe a total of 23K*1.0248=$23,571.  Then subtract the $804 you are paying.  If you want to think of it in terms of interest and principal, you are paying $571 a month in interest and 233 toward principle, I guess. Paying off debt with a lower interest rate using debt with a higher interest rate is throwing a lot of money away and impoverishing yourself needlessly.  Psychology can't get around that.  If you want a psychological aid, decide how much you are going to pay toward these debts and have it automatically deducted from your paycheck so you never see it. Make the minimum payment on every debt you have except the one with the highest interest rate.  Pay the very most you can toward that.  Then when it is paid off, move to the next highest.  Do all your spending out of the lowest rate card, or avoid using these credit cards until your financial discipline and resources allow you to pay all credit cards off completely at the end of each month. Not sure if this is possible... It is possible! It is called a balance transfer card and most of the major credit card companies offer them. It is possible to save a significant amount on interest during the grace period. However... Is this a viable option? Not really. Any card will charge you an upfront fee of 3% to 5% of the balance you are transferring. This really only buys you some time in case you are about to fall behind on payments. For many people it's just a way to shuffle around debt, digging themselves a little deeper into consumer debt with each transfer. As long as you can be trusted with a Credit Card i find that if you have a setup that uses three accounts: 1. your Credit Card, 2. 2. a high interest internet account (most of these accounts don’t have fees), 3. a savings account.  The Method that works for me is: 1st i calculate my fixed monthly bills i.e Rent and utilities and then transfer it into my high interest account.  for the month whenever i make a purchase i transfer the money into the high interest account ( this way I can keep a running balance of what money I have left to spend in the month. Then when the Credit Card bill comes I transfer the money out of the high interest account across to pay off the Credit Card ( this way you generate interest on the money which you would have spent throughout the month and still maintain $0 of interest from the Credit Card) over a year you can generate at least enough money in interest to go out for dinner on one of free flights! JohnFx is more experienced than I am but I have paid off friends cards before. It was as simple as asking them the routing number of the bank that gave them the card and setting up an ACH with their card number. I guess this might be against some banks T&C but the CU I used to carry out the ACH gave me the go ahead as long as I did not dispute the payment later. "I'd like to know if there is any reliable research on the subject. Intuitively, this must be true, no? Is it? First, is it even possible to discover the correlation, if one exists? Dave Ramsey is a proponent of ""Proven study that shows you will spend 10% more on a credit card than with cash."" Of course, he suggests that the study came from an otherwise reliable source, Dun & Bradstreet. A fellow blogger at Get Rich Slowly researched and found - Nobody I know has been able to track down this mythical Dun and   Bradstreet study. Even Dun and Bradstreet themselves have been unable   to locate it. GRS reader Nicole (with the assistance of her trusty   librarian Wendi) contacted the company and received this response:   “After doing some research with D&B, it turns out that someone made up   the statement, and also made up the part where D&B actually said   that.” In other words, the most cited study is a Myth.  In fact, there are studies which do conclude that card users spend more. I think that any study (on anything, not just this topic. Cigarette companies buy studies to show they don't cause cancer, Big Oil pays to disprove global warming, etc.) needs to be viewed with a critical eye. The studies I've seen nearly all contain one of 2 major flaws - My own observation - when I reviewed our budget over the course of a year, some of the largest charges include - I list the above, as these are items whose cost is pretty well fixed. We are not in the habit of ""going for a drive,"" gas is bought when we need it. All other items I consider fixed, in that the real choice is to pay with the card or check, unlike the items some claim can be inflated. These add to about 80% of the annual card use. I don't see it possible for card use to impact these items, and therefore the ""10% more"" warning is overreaching.  To conclude, I'll concede that even the pay-in-full group might not adhere to the food budget, and grab the $5 brownie near the checkout, or over tip on a restaurant meal. But those situations are not sufficient to assume that a responsible card user comes out behind over the year for having done so.  A selection of the Studies I am referencing -" Is my understanding okay ? If so, it seems to me that this system is   rather error prone. By that I mean I could easily forget to make a   wire some day and be charged interests while I actually have more than   enough money on the check account to pay the debt. Which is where the credit card company can add fees so you pay more and they make more money. Don't forget that in the credit case, you are borrowing money rather than using your own. Another thing that bothers me is that the credit card apparently has a   rather low credit limit. If I wanted to buy something that costs $2500   but only have a credit limit of $1500, can I make a preemptive wire   from my check account to the VISA account to avoid facing the limit ?   If so, what is the point for the customer of having two accounts (and   two cards for that matter...) ? If you were the credit card company, do you believe people should be given large limits first? There are prepaid credit cards where you could put a dollar amount on and it would reject if the balance gets low enough. Iridium Prepaid MasterCard would be an example here that I received one last year as I was involved in the floods in my area and needed access to government assistance which was given this way. Part of the point of building up a credit history is that this is part of how one can get the credit limits increased on cards so that one can have a higher limit after demonstrating that they will pay it back and otherwise the system could be abused. There may be a risk that if you prepay onto a credit card and then want to take back the money that there may be fees involved in the transaction. Generally, with credit cards the company makes money on the fees involved for transactions which may come from merchants or yourself as a cash advance on a credit card will be charged interest right away while if you buy merchandise in a store there may not be the interest charged right away. Sure of course you can do balance transfers like this but you are way late to the party and it has gotten to be pretty challenging finding new cards to transfer balances to. Before the current financial crisis in the US you could get enormous amounts of credit (2-5 times a person's annual income) and transfer balances to your bank account to collect interest . There were a bunch of ways to the transfer everything from direct deposit to your bank account to a balance transfer check payable to yourself to overpaying another credit card and requesting a refund. Over paying another account sets off a lot of red flags now days but other methods still work. The financial atmosphere has changed a lot and there are very few available cards with no balance transfer fees or capped fees and the interest rates are a lot lower now so it really isn't worth doing. "The best thing to do is to completely pay off one credit card, then apply the left over to the highest interest card. After that, ALL of your expenses that can be put on a credit card, should be put on the one that you just paid off. At the end of the month, pay off a different credit card and the highest interest, and move all your purchasing to that card. Keep going around the circle until you are able to pay them all off. Doing this will be good for your credit score as the debt on the cards will now be ""new"".  If you're really desperate to increase your credit score (e.g. refinancing a house) you can use balance transfers to temporarily make it appear that you have zero debt but it will cost you some money, typically balance transfers cost something like $35 + 2%." You'll have to call your credit card issuer and ask them. Generally, credit cards don't do bank transfers, since its not a bank account per se. But it may be in some cases that there's an underlying bank account over which your credit card is managed, and then they might be able to do something like that. But we won't know, only your card issuer will. There is almost no reason to get a second credit card - this is a very good arrangement for your creditor but not for you. Credit cards have high rates of interest which you have to pay unless you pay the credit off every month. Therefore, increasing your total credit capacity should not be your concern.  Since internet technology lets you pay off your balance in minutes online, there is no reason to have multiple cards in order to avoid running out of a balance. If, on the other hand, you do not pay your existing card off every month, than getting another card can be even more dangerous, since you're increasing the amount of debt you take on. I'd say at most it would make sense for you to grab a basic VISA, since most places do not accept AMEX. I would also considering cancelling the AMEX if you get the VISA, for reasons above. The best solution I've been able to find for this is MoneyWiz, where both are logged into the same sync account. At least in the US, many credit card companies offer statements that categorize your spending on that card and break it down by different categories depending on the merchant category code.   Having different cards for each budget category can be a good idea if different cards have different rewards bonuses depending on categories: e.g. this card gives a high percentage back at gas stations, that one at grocery stores, another at restaurants, etc. "Could the individual [directly] use the credit cards for the down-payment? No, not directly. Indirectly, either via Cash Advance or ""Balance Transfer"" to a bank account with a promotional rate could work, however you may have to show the money sitting in a bank account and ready to go before the loan will be approved, which means the money you took out on the credit cards will show up when they pull your credit (unless you somehow timed it perfectly, and even if you did that you'd be breaking the law by lying on the disclosure statement about your current debts.) If he could, are there any negative consequences from doing so (other than probable high monthly payments on the cards)? Definitely. Let's assume we're talking about the indirect method of cash advance or balance transfer, since that is actually possible. There are 3 things to compare: Final thought: Most of the time the rate you pay on a non-mortgage loan will be higher than that of the mortgage, and furthermore mortgage interest is oftentimes tax deductible, so it would rarely ever make sense to shift would-be mortgage debt into another type of loan, down payment or otherwise." The implied intent is that balance transfers are for your balances, not someone else's.  However, I bet it would be not only allowed but also encouraged.  Why?  Because the goal of a teaser rate is to get you to borrow. Typically there is a balance transfer fee that allows the offering company to break even.  In the unlikely event that a person does pay off the balance in the specified time frame the account and is then closed, then nothing really lost. Its hard to find past articles I've read as all the search engines are trying to get me to enroll in a balance transfer.  However, about 75% of 0% balance xfers result in converting to a interest being accrued.  If you are familiar with the amount of household credit card debt we carry, as a nation, that figure is very believable. To answer your question, I would assume they would allow it.  However I would call and check and get their answer in writing.  Why?  Because if they change their mind or the representative tells you incorrectly, and they find out, they will convert your 0% credit card to an 18% or higher interest rate for violating the terms.  Same as if a payment was missed. From the credit card company's perspective they would be really smart to allow you to do this.  The likelihood that your family member will pay the bill beyond two months is close to zero.  The likelihood that a payment will be missed or late allowing them to convert to a higher rate is very high.  This then might lead to you being overextended which would mean just more interest rates and fees.  Credit card company wins!  I would not be surprised if they beg you to follow through on your plan. From your perspective it would be a really dumb idea, but as you said you knew that. Faced with the same situation I would just pay off one or more of the debts for the family member if I thought it would actually help them.  I would also require them to have some financial accountability.   Its funny that once you require financial accountability for handouts, most of those seeking a donation go elsewhere. Wow, I had never heard of this before but I looked into it a bit and Mikey was spot on. It seems that if you don't pay attention to the fine print when making credit card purchases (as most of us tend to skip) many companies have stipulations that allow continued charges if they are recurring fees (monthly, yearly, etc.) even after you have cancelled the card.