I am not an accountant, so I hopefully, an expert will contact you.

State laws differ so to answer your question correctly, the accountant would need your State. If you work for a company as an employee, they issue you W2.If you work without being an employee, they issue you 1099.

They can pay the 1099 directly to you (independent contractor), pay it to a LLC (you register a LLC) or pay it to you as a sole proprietor. The benefit of a LLC is that will limit your financial exposure (you can google the difference between sole proprietor and LLC).

When a company pays you as an employee, they pay the employer’s portion of FICA taxes (7.65%) and withheld employee’s portion of FICA taxes (7.65%). When you are an independent contractor (or LLC or sole proprietor),the company doesn’t withheld or pay any taxes, you have to pay both the employee’s and employer’s portion of FICA taxes (15.3%)

Let’s say you work for 2080 hours a year. Your current pay is $50 an hour, you gross pay is $104000.

Current Gross ($50/hour) = 104,000

Employer’s FICA portion = 7,956

Effective Gross Pay = 111,956 (given that you will have to pay 7,956 more if you were filing taxes as an independent contractor)

Future Gross ($60/hour) = 124,800

Let’s say accountant filing fees for LLC, registration fees for LLC and the need to carefully track business expenses is worth $5000 to you. Even after that you would make $7,844 more (all other taxes such as employee's portion of FICA, State income tax, Federal income tax will remain same)

Remember: The calculations above are NOT net calculations. You still need to take into account all other taxes (as far as I know, all other taxes will remain same regardless of whether you file as employee or independent contractor or LLC or sole prop.)

Disclaimer: I am not an accountant or an expert, just a novice interested in this stuff. Consultant an actual accountant.