Do I have to file my business on my taxes first year opening or can I file my business taxes next year

You generally need to file a tax return for your business in the first year you operate. The specific requirements depend on your business type:

• Sole Proprietorship: Report income and expenses on your personal tax return using Schedule C (Form 1040)
• Partnership: File an annual information return using Form 1065 and report your share of income on your personal tax return.
• Corporation: File an income tax return using Form 1120 annually.
• S Corporation: File Form 1120S and report your share of income on your personal tax return120S and report your share of income on your personal tax return

For more details, check out the IRS page on Filing and Paying Your Business Taxes