I'm not exactly sure what you mean by this, but LLCs are pass through entities for tax purposes. That means your tax treatment is the same for an LLC as it would be if you were a sole proprietor without an LLC.
The reason to create an LLC is to separate your personal assets from your business assets and to protect you from liability for your employees actions. If your LLC signs the contract, in most cases the client can only go after the business, not you personally.
However, almost all lenders require a personal guarantee and an LLC doesn't protect you from your own negligence. Only from the negligence of your employees.
So basically - LLCs are unnecessary if you are the only employee.
See: https://www.nolo.com/legal-encyclopedia/limited-liability-pr...