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.
Payments. The deadlines for making contributions to SEP IRAs are the same as those for creating the plan. You have until the filing deadline for your tax return, including extensions, to put money into the accounts. Even if you've already filed your return you still have until the deadline to make the deposits. So if you file for an extension before April 15, you have until Oct. 15 to make contributions to a SEP IRA for the previous year. This gives you an additional six months past the normal deadline for making IRA contributions.