I’ve been working freelance for a math company to provide solutions and i was wondering if i need to file a tax form. And if i do, how much will i need to pay each year?

Since the only thing i use for the job is a calculator and couple math textbooks, I dont think I can deduct these expenses from the taxes. If this is the case, how much will i need to pay for an self-employment of $ 2000?

what?

Yes.

The minimum for filing a tax return if you are self-employed is only $ 400 a year.

Yes, you would since you are self employed and made over $ 400.00. That’s okay though. The good news is that you get to write off expenses related to the work you’re doing on your Sch C. I couldn’t tell you how much tax you would need to pay because I don’t know how many expenses you can use to lower your taxable income.

file on sch C and SE with your 1040

your self employment tax is approx. 13.3% of your Sch C ‘net’

If your total self-employed income is only $ 2,000, you won’t owe income tax ; but you must pay Social Security and Medicare tax about 13.3%

You can download form 1040ES, look at page 6, there is a worksheet for you to compute self employment tax.

The result on line 10 of this worksheet is your SE tax.

By the way, I have computed for you, if you would not have any expenses so the result is $ 245.66.