Timing between loans and applying for a new credit card
There were several areas where the mortgage and car loan have affected your credit.  The mortgage had the following impacts, The car loan (purchased shortly after the house) had the following impacts, You did not mention your payment history, but since you had an 800 prior to the house purchase, we can assume that your payment history is current (nothing late). You did not mention your credit utilization, but you want to keep your utilization low (various experts suggest 10%, 20% and 30% as thresholds).  The down payment on the house likely drained your available funds, and replacing the car may have also put stress on your funds.  And when you buy a house, often there are additional expenses that further strain budgets. My guess is that your utilization percentage has increased.  My suggestion would be to reduce your utilization ratio on your revolving accounts.  And since you have plenty of credit lines, you might want to payoff the car. Your Chase card has a good age, which helps with age of credit, and though you will find experts that say you should only have 2-4 revolving accounts (credit cards), other experience shows that having accounts with age on them is a good thing.  And having a larger number of accounts does not cause problems (unless you have higher utilization or you miss payments). You did not mention whether the Chase card has any fees or expenses, as that would be a reason to either negotiate with Chase to reduce or eliminate the fees, or to cancel the card. Have you checked your credit report for errors?  You can get a free report from each of the three bureaus once per year.
Between half a year and a year should be enough to improve your interest rates drastically on car loan refinance. Make sure that your new credit card has already been reported to the agencies, and that the credit/debt ratio is lower than 30% on your revolving (credit card) accounts. That also means that you shouldn't carry too much balance, even if the APR is 0%. $3,500 isn't usually enough to make a difference when calculating credit for a car loan. The other factors that you didn't mention are the important factors. How much money do you make? What is your credit score? Do you have balances on credit cards? The only way you can know is to look at your credit score and/or apply. I would generally recommend you buy a 3-4 year old car rather than a new car. With the lower purchase price you can pay it off quickly. It's very simple: The whole purpose of a credit card for the credit card company is that you borrow money and then pay them extortionate interest for the rest of your life. The way you describe yourself, you are the perfect victim. So the obvious thing for you to do is to not touch credit cards with a barge pole.  IF you decide to use a credit card, then what you should really, really do is to pay back the maximum amount possible all the time. Best is to pay off the credit card in full if at all possible.  Consider this: If you owe them money, the interest rate is so high that with the minimum payment, your debt will be growing all the time. Spend $1,000, pay $10 a month, and next year you owe $1,100 without having used the credit card at all. If you pay $32 a month as you mentioned, your $1,000 purchase is actually a multi-year loan. If you need a multi-year loan for a $1,000 purchase, an ordinary loan from your bank will be much, much cheaper. "One of the factors of a credit score is the ""length of time revolving accounts have been established"". Having a credit card with any line of credit will help in this regard. The account will age regardless of your use or utilization. If you are having issues with credit limits and no credit history, you may have trouble getting financing for the purchase. You should be sure you're approved for financing, and not just that the financing option is ""available"" (potentially with the caveat of ""for well qualified borrowers""). Generally, if you've gotten approved for financing, that will come in the form of another credit card account (many contracting and plumbing companies will do this in hopes you will use the card for future purchases) or a bank loan account (more common for auto and home loans). With the credit card account, you might be able to perform a balance transfer, but there are usually fees associated with that. For bank loan accounts, you probably can't pay that off with a credit card. You'll need to transfer money to the account via ACH or send in a check. In short: I wouldn't bet on paying with your current credit card to get any benefit. IANAL. Utilizing promotional offers, whether interest-free for __ months, no balance transfer fees, or whatever, and passing your debt around is not illegal, not fraudulent, and in many cases advised (this is a link), though that is more for people to distribute utilization across multiple cards, and to minimize interest accrued. Many people, myself included, use a credit card for purchasing EVERYTHING, then pay it off in full every month (or sometimes immediately) to reap the benefit of cash back rewards and other cardholder benefits. I've also made a major payment (tuition, actually) on a Discover card, and opened up a new Visa card with 18-months of no interest and no balance transfer fees to let the bill sit for 12 months while I finished school and got a job." "There are two factors in your credit score that may be affected. The first is payment history. Lenders like to see that you pay your bills, which is the most straightforward part of credit scores IMO. If you've actually been paying your bills on time, though, then this should still be fine. The second factor is the average age of your open accounts. Longer is considered better here because it means you have a history of paying your bills, and you aren't applying for a bunch of credit recently (in which case you may be taking on too much and will have difficulties paying them). If this card is closed, then it will no longer count for this calculation. If you don't have any other open credit accounts, then that means as soon as you open another one, your average age will be one day, and it will take a long time to get it to ""good"" levels; if you have other matured accounts, then those will balance out any new accounts so you don't get hit as much. Incidentally, this is one of the reasons why it's good to get cards without yearly fees, because you can keep them open for a long time even if you switch to using a different card primarily." A) The Credit Rating Agencies only look at the month-end totals that are on your credit card, as this is all they ever get from the issuing bank. So a higher usage frequency as described would not make any direct difference to your credit rating. B) The issuing bank will know if you use the credit with the higher frequency, but it probably has little effect on your limit. Typically, after two to three month, they reevaluate your credit limit, and it could go up considerably if you never overdrew (and at this time, it could indirectly positively affect your credit rating). You could consider calling the issuing bank after two month and try to explain the history a bit and get them to increase the limit, but that only makes sense if your credit score has recovered. Your business paperwork could go a long way to convince someone, if you do so well now. C) If your credit rating is still bad, you need to find out why. It should have normalized to a medium range with the bad historic issues dropped. if the rate of interest on both loans is 6.5%, it does not make any difference against which loan you offset. if you offset it with 50K loan, you will close it sooner [I am assuming your 50K loan is of shorter tenure compared to the 300K without considering offset]. The overall interest outgo looks larger if you close the shorter loan vs closing the larger loan, however the net effect is the same if you start putting out the balance $400 to the 300K loan after you have closed it out. A traditional bank is not likely to give you a loan if you have no source of income. Credit card application forms also ask for your current income level and may reject you based on not having a job. You might want to make a list of income and expenses and look closely at which expenses can be reduced or eliminated. Use 6 months of your actual bills to calculate this list. Also make a list of your assets and liabilities. A sheet that lists income/expenses and assets/liabilities is called a Financial Statement. This is the most basic tool you'll need to get your expenses under control. There are many other options for raising capital to pay for your monthly expenses: Sell off your possessions that you no longer need or can't afford Ask for short term loan help from family and friends  Advertise for short term loan help on websites such as Kijiji Start a part-time business doing something that you like and people need. Tutoring, dog-walking, photography, you make the list and pick from it. Look into unemployment insurance. Apply as soon as you are out of work. The folks at the unemployment office are willing to answer all your questions and help you get what you need. Dip into your retirement fund. To reduce your expenses, here are a few things you may not have considered: If you own your home, make an appointment with your bank to discuss renegotiation of your mortgage payments. The bank will be more interested in helping you before you start missing payments than after. Depending on how much equity you have in your home, you may be able to significantly reduce payments by extending the life of the mortgage. Your banker will be impressed if you can bring them a balance sheet that shows your assets, liabilities, income and expenses.   As above, for car payments as well. Call your phone, cable, credit card, and internet service providers and tell them you want to cancel your service. This will immediately connect you to Customer Retention. Let them know that you are having a hard time paying your bill and will either have to negotiate a lower payment or cancel the service. This tactic can significantly reduce your payments. When you have your new job, there are some things you can do to make sure this doesn't happen again: Set aside 10% of your income in a savings account. Have it automatically deducted from your income at source if you can. 75% of Americans are 4 weeks away from bankruptcy. You can avoid this by forcing yourself to save enough to manage your household finances for 3 - 6 months, a year is better. If you own your own home, take out a line of credit against it based on the available equity. Your bank can help you with that. It won't cost you anything as long as you don't use it. This is emergency money; do not use it for vacations or car repairs. There will always be little emergencies in life, this line of credit is not for that.  Pay off your credit cards and loans, most expensive rate first. Use 10% of your income to do this. When the first one is paid off, use the 10% plus the interest you are now saving to pay off the next most expensive card/loan. Create a budget you can stick to. You can find a great budget calculator here: http://www.gailvazoxlade.com/resources/interactive_budget_worksheet.html Note I have no affiliation with the above-mentioned site, and have a great respect for this woman's ability to teach people about how to handle money.