Here's how it works: Say you receive a car, RV or boat loan through a credit union with which you also have a credit card. In the fine print of the loan contract, you'll probably see that your credit card balance is secured by the auto, RV or boat.ere's how it works: Say you receive a car, RV or boat loan through a credit union with which you also have a credit card. In the fine print of the loan contract, you'll probably see that your credit card balance is secured by the auto, RV or boat.
If you've made nondeductible contributions to your traditional IRA, you have to use Form 8606 to figure the taxable and nontaxable portion. Otherwise, the entire amount is taxable. In addition, if you take a taxable non-qualified withdrawal, you'll have to figure the 10 percent additional tax with Form 5329.
However, you can make nondeductible IRA contributions. If you make them to a traditional IRA, complete Form 8606 and file it with your return. This form helps you keep track of your basis in the account. Basis includes the total amount of nondeductible contributions that you make.