I graduated college in May 2021 and started a job in June. I was hired in a trial basis, with the intent to become a full-time employee. My employer required that I submit weekly invoices for all of 2021 and I received a 1099-nec. I became a full-time employee in for 2022 and received a W2 for that tax year. I received an IRS notice CP200 stating I owe self-employment tax for the 2021 income. Is this correct given that I was hired full time and am still employed at the same company? The only difference was the submission of invoices. I did not start a business. Is it worth me pursuing an exception to paying the self-employment tax?
