Where are you seeing 0 for Business expenses? Are you self employed? What Type of expense are you trying to report?
If you’re self-employed or own a small business, you can deduct eligible business expenses. These expenses must be common for your type of business and also necessary for your operations.
Job-related expenses for employees are no longer deductible on most people’s federal return in tax years 2018 through 2025 due to the Tax Cuts and Jobs Act (TCJA) that Congress passed and the President signed into law on December 22, 2017. However, job-related expenses may be deductible in your state.