Any contributions you make to a SEP-IRA do not count against the $6,500 limit for a regular person contribution to an IRA.
Also, be careful how you calculate your SEP-IRA contribution. For a self-employed individual it requires a special calculation. The maximum permissible SEP-IRA contribution is 20% of your net earnings from self-employment. Your net earnings from self-employment are your net profit from self-employment minus the deductible portion of your self-employment taxes (Form 1040 line 27).
With $17,550 of net profit from self-employment and no more than $118,500 of total compensation subject to Social Security tax, your maximum SEP-IRA contribution is $3,262 and your maximum IRA contribution is $6,500
