Chloroplast: Photosynthesis. In photosynthesis, the sun's solar energy is converted to chemical energy. The chemical energy is stored in the form of glucose (sugar). Carbon dioxide, water, and sunlight are used to produce glucose, oxygen, and water.
SEP IRA Contribution Limits 2013. You can contribute up to 25% of your total salary or 20% of your adjusted annual income to a SEP IRA, up to a limit of $51,000 in tax year 2013. This is almost twice the limit for 401(k) investors.
If you are self-employed and qualify for a SEP-IRA then you may contribute the lesser of $53,000 or 25% of your total compensation minus the self-employment tax. That means you may contribute more to a SEP IRA than a traditional IRA as long as you make more than approximately $22,000 (IRA limit of $5,500/25%). This higher cap provides you more flexibility in how much you can save in a given year for retirement.