I started a new business in November. We have had expenses to start the business but no income. Do I have to file this year?

No, you don't need to file a business tax schedule this year. Since you are a single member LLC, you will file your business income and expenses on a schedule C, attached to your personal tax return form 1040. You would only file that schedule if you have income or expenses to report. The expenses you have incurred would be considered startup expenses and you would start deducting them in the year you open your doors for business.

when your doing the 2023 return in 2024, repost because these appear to be section 195 expenses which require special treatment on schedule C for 2023