How Much Can I Contribute To My Retirement Plan? 
If your retirement plan is qualified then you have contribution limitations or by the percentage of income or both . There are several defined contribution plans like 401 -LRB- k -RRB- , 403 -LRB- b -RRB- , 412 -LRB- e -RRB- , SEP IRA , HR10 , IRA , Roth IRA & 457 Plan . Depending upon income and the plan the best is suitable for you , contributions from $ 5,500 for a traditional and Roth IRA all the way up to $ 51,000 for a defined contribution plan . 