That $1200 stipend is chicken feed in the grand scheme of things. You worked for 250 hours for an amount averaging less than $5/hour for that, and hopefully will not work for such a small amount ever again.
It is very concerning that the employer -- if indeed they are an employer and not a "client" for you as an independent contractor-- is not withholding tax, Social Security or Medicare from your paychecks. Get clarity as soon as possible as to whether they intend to issue a W-2 to you. If they are treating you as an independent contractor and plan to issue you a 1099NEC, you are going to owe self-employment tax on that income for Social Security and Medicare, and you may owe federal and state tax as well, since they are not withholding any tax.
If you do not want to work as an independent contractor and they are treating you as such, you may want to explore other employment opportunities and seek a W-2 job in which federal, state and FICA will be withheld.
https://ttlc.intuit.com/questions/2584365-am-i-an-employee-or-an-independent-contractor
https://ttlc.intuit.com/community/self-employed/help/how-do-i-report-income-from-self-employment/00/...
https://ttlc.intuit.com/community/self-employed/help/what-is-the-self-employment-tax/00/25922
https://ttlc.intuit.com/questions/2902389-why-am-i-paying-self-employment-tax
https://ttlc.intuit.com/questions/1901340-where-do-i-enter-schedule-c
https://ttlc.intuit.com/questions/3398950-what-self-employed-expenses-can-i-deduct
https://ttlc.intuit.com/questions/1901110-do-i-need-to-make-estimated-tax-payments-to-the-irs
https://turbotax.intuit.com/tax-tools/calculators/self-employed/
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
