If I have a business/side hustle, is it more tax efficient to formalize it with an LLC and do a business filing, or just do a Sole Proprietorship and file under my personal tax return. I'm the only employee.
Filing the Schedule C with your personal Form 1040 is the simplest option, but it depends on what, if any, elections you have made.
If you operate a business using a single or multi-member limited liability company (LLC), then you have more flexibility in choosing how the IRS taxes your business earnings. Your choice will directly influence the tax filing rules you are subject to. There's no set of tax rules that specifically apply to LLCs. The IRS allows an LLC to use partnership, corporate (C-corp or S-corp) or sole proprietor tax rules.
If this is your first year filing taxes for your business, here are a few ways to identify how your business is set up:
If this isn't the first time filing and the business setup hasn't changed, use last year's tax return: