Contractor are self employed, So Tenderer's keep Contractors.
No, never. Employers hire only EMPLOYEES. Contractors and their subcontractors are not employees and are not hired. I engage a contractor by signing a contract, not by hiring her.
Yes, only the employers and not the employees. However, there are classes of employers not subject to payroll taxes if they employ independent contractors, or some seasonal work, etc. Each state decides its own classification.
You are liable for contractors employers since you are hiring them. However if you have a good contractor that have their own people then you should mentioned in contract that the contractor is liable for their own people.
The requirements will vary, depending on the employers and whether the employer is a union shop. Carpentry can be taught at a trade school or learned on the job. While carpenters can be hired as contract employees, carpenters are not necessarily contractors.
It costs a great deal in accounting, finance and such, takes time and management. All called "cost of compliance".
No. Models are independent contractors, which means their agency and/or the clients they work with are not employers. Therefore, they are not obligated to provide benefits. Models must pay for their own health and dental benefits.
Yes, if you had previous employers that did pay their payroll taxes. The states allow certain classes of employers from paying into the system by employing "independent contractors" or commission-only people. There's a crackdown now underway against employers who are re-classifying their workers to avoid compliance.
Effective employers don't share information with employees.
Most large employers do but most small employers with only a few employees do not.
The states generally base their unemployment tax rate to employers according to the size of their payroll and their employees continued employment. A large turnover rate of employees will generally increase their tax rate. This is one of the reasons some employers deliberately misclassify the employee as an "independent contractor" to avoid their obligation to the state and the employees.
Both. Employers and employees contribute an equal percentage of the employee's income to Social Security.