I'm a self employed sole proprietor freelancer with no employees

I now have an EIN number that I made to give out to a client because I did not feel comfortable providing my SSN on the W9 form. How does this change how I do my taxes since I used to do all of my filings with my SSN? Is there anything I have to do differently? I have no employees, or LLC, it is just me making freelance income.  Thank you