The deduction limits for employees also apply to self-employed persons.
However, self-employed persons must perform a special computation to figure their maximum deduction for contributions made to their own SEP-IRA.
For employees, the most you can deduct is the lesser of:
Note: The compensation you may consider for SEP contributions is limited to $250,000 in 2012.
Contributions for yourself are deducted on:
Contributions made for employees are deducted on the business tax return:
You have until the due date of your return (including extensions) to set up a SEP plan and make deductible contributions.