Possible to use balance transfers to avoid interest with major credit cards?
In theory, yes. In practice: So it can be gamed, but the odds are not on your side :) I have done this for years and have been quite successful at it. Two reason I even need to do this - desire to pay for engagement ring and pay for 150 person wedding without using my nest-egg/savings.  You need to keep a document that details when the free APRs run out, and you need to setup automatic payments of the minimum balance from your checking account so you ensure you do not miss a payment.  You need to understand when you are going to need to make big purchases of homes/apartments/cars so that you can ensure you aren't doing this right before your credit score is being checked (Need to leave 12 months without opening new accounts before doing this).  I have been able to finance about $60,000 worth of unsecured debt paying between 3-5% interest per year. We have an unsecured credit line with Citibank that charges 14% and is capped at $10,000, and Discover Personal Loans charge around 14% as well (in pre-paid interest!).  I would say, all things considering, that this is a great deal if you don't have a secured line of credit with a low interest rate.  It is something, however, that if you aren't diligent can get away from you. From my experience I would rather pay a small amount of interest while allowing my savings and retirement to grow interest (hopefully greater than 3-5%) than pay the huge expense and start from zero. But if you miss a single payment on a 0 APR balance transfer they charge you all back interest concessions plus charge you a penalty rate.  Like many of the other posts, you need discipline to make this work. IMO, it's a good deal. Pre-paying 3% interest is better than accruing it at 1-2% per month. The other nice thing about it is that all of your payments hit the principal. 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 workaround solution is to simply avoid having an exactly zero balance on your account. Thus for inactive credit cards that I want to keep around for emergency use, I always leave a small positive balance on the card. The credit card company reserves the right to cancel my card at any time, but a positive balance would force them to send me a check for the privilege of doing so. A positive balance avoids making the account appear inactive and makes it cheaper for them to simply leave the account open. "Played ""the balance transfer game"" once recently, just as a reference - Got a balance transfer offer for a sock drawer no-AF card. 2% up-front fee, 0% APR. Grace period was, by the time I acted on it, about 16 months. Used it to pay down an auto loan with an APR slightly higher than 2%, and brought my equity back to positive. Towards the end when I rolled over the auto loan, thanks to the positive equity I was offered a rate discount on the new loan. Essentially this was a piggyback loan on the original auto loan funded by credit card (via balance transfer). Saved some interest charges without having to refinance." "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." You should check the details of those balance transfers - they typically have a 3 to 5 % 'one-time fee', which means you pay nearly a year's interest right away. And then every time you transfer the total on again. Also, this fee gets added to the credit card total, and it is possibly considered paid last (after you paid off the completed transferred balance), so it cost interest for the whole time (and that interest is different, maybe 19.99 % or worse). It is probably a better idea to refinance for 5 years at <3%, and they pay off as fast as possible. That would have been a good idea.  They don't charge interest on a $0 balance, but if you payoff your account after the cycle date, there is a hidden balance and that balance will accrue interest. It is only a few cents a day.  I just don't think it is legal for them to refuse to provide you a payoff quote mid cycle. I'm almost certain. When I worked for Discover it was a key point in training to not give the wrong amount and to make sure to use the calculator in the system to quote a daily balance, how much it goes up per day, and how much they should send if they were mailing the payment, giving consideration for the time it takes to receive/process the payment. It is called trailing interest, and you can read about it [here](http://www.extracreditcards.com/trailing-interest/).  edit: IIRC, the argument is that resulting total interest charges are lower for the customer calculating the interest this was as apposed to whatever the alternative is. The sneakiness is that you don't expect to owe another $1.50 on the next statement, neglect to remit the payment on it, and boom, late fee. I used to encourage my clients to overpay their account when trying to achieve a payoff. "My advice: IMO, all things being somewhat equal, you should always try to retire debts as quickly as possible in most cases, so start with the small cases. The method of calculating credit card interest is written on the statement. Usually it is ""average daily balance method"". Don't sweat the details. Just pay the things off." Technically, yes but, in practice, no.  I use a card for everything and pay it off every month. Sometimes, several times a month depending on how the month is going. In the last 10 years, I've paid a total of $8 in interest because I legitimately forgot to pay my balance before the statement came out when I was out of town. I wasn't late, I just didn't beat the statement and had a small interest charge that I couldn't successfully argue off.  In the same time period, I've had one card cancelled at the banks request. The reason was that I hadn't used it in two years so they cancelled me.  I never pay annual fees, I get cards with great rewards programs and I (almost) never pay interest. If your bank cancels your card because you're too responsible, find a better bank.