Other calcium-rich food sources include: salmon, sardines (with bones), green beans, turnip greens. Additional magnesium-rich foods include: raw chocolate (raw cacao, the #1 source of magnesium), nuts and pumpkin seeds, molasses, spinach, baked potatoes, bananas, wheat germ and seafood. An important note about calcium: you want to avoid calcium supplements.
1 For contributions made on behalf of common-law employees, the partnership claims the deduction on IRS Form 1065. 2  For an S-corporation, all SEP contributions are claimed on IRS Form 1120S. 3  For a C-corporation, all SEP contributions are claimed on IRS Form 1120-A.
Employee Contributions. If you work for an employer that offers a SEP IRA, you can make your contributions as an employee as late as your tax filing deadline, not including extensions. This means that most years, you must get the money deposited by April 15 of the following year.