2009 & 2010 Maximum Contributions      Employee Under Age 50 Employee Age 50 or Older Employer Last Date to Open the Plan 401-K $16,500 $22,000 Up to 25% of employee W-2 wages, not to exceed $49,000 Dec 31 SEP          0         0 Up to 25% of employee W-2 wages, not to exceed $49,000 Sep 15 of the following year SIMPLE $11,500 $14,000 Generally a dollar for dollar match of employee contributions, not to exceed 3% of W-2 wages.  (Can go lower in certain situations.  Can not go higher.)  Oct 1 Traditional or Roth IRA $5,000 $6,000                      0 Apr 15 of  the following year