Contributions to an IRA are based on earned income, which includes net earnings from self-employment. If you have a qualified retirement plan, such as a SEP, for your business, you can contribute to a deductible IRA only if your modified adjusted gross income (MAGI) level is below a set amount. If you don’t have a plan, there’s no MAGI limit for making a deductible IRA contribution. Or, you may choose to make a Roth IRA contribution (nondeductible), but there are MAGI limits whether or not you have a qualified plan.
The difference between amount realized and adjusted basis on the sale or exchange of capital assets. Long-term capital gains are taxed favorably. Capital losses are deducted first against capital gains, and then again up to $3,000 of other income.