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.
So if you didnât have a great year, you can wait until April 15th to come up with the cash to contribute. The deadline for corporations is March 15th or the normal corporate tax filing date. However, if youâre self-employed and didnât make any profit, you canât contribute anything to your SEP-IRA for that year.