Multiple Businesses Under One EIN

Wondering if you can run more than one business under a single EIN without creating a tax mess? This guide breaks down when the IRS expects one EIN, when you need separate EINs, and how structure matters for sole proprietors, partnerships, LLCs, and corporations . Learn the difference between a single business with multiple activities versus multiple legal entities, plus the filing, payroll ...

Learn how to structure multiple businesses for legal and tax efficiency. Discover key concepts and entity types today.
How to Legally Structure Multiple Businesses

Learn how to effectively structure multiple businesses to minimize risk and maximize growth. This guide covers holding companies, LLCs, and DBAs, providing essential insights for entrepreneurs.
Owning multiple companies in 2026? Compare LLCs, DBAs, holding companies and Series LLCs, with sourced formation fees, tax rules, and a compliance checklist.

Can a Company Own Multiple Businesses (wExamples) FAQs
Yes, a company can own multiple businesses , either as separate legal entities gathered under one holding company or as some brands run inside a single LLC.
There are advantages and disadvantages to structuring multiple business, and lots of ways to do it wrong.

How to Have Multiple Businesses Under One LLC (Explained)
To operate multiple businesses under one LLC, utilize strategies like DBAs (Doing Business As), creating a Series LLC, or setting up a parent LLC. Implementing these structures can streamline operations and consolidate tax filings. Approximately 83% of small business owners initiate their ventures using personal assets, with an average start-up cost of around $40,000, reinforcing the ...
Learn 10 practical tips for owning multiple businesses—from choosing legal structures to managing cash flow and building the right team.

Multiple Businesses with Common Ownership
With the aggregation election, multiple pass-through businesses can be lumped together for purposes of applying the W-2 wage and UBIA-of-qualified-property deduction limit as long as at least one person in the ownership group has at least 50% ownership—directly or indirectly—in each business to be aggregated.



My accountant suggested forming an S corporation to save on taxes, but I'm confused if I need to create two separate S corps (one for each business) or if I can form just one S corp to handle both operations. The businesses are totally unrelated - different industries, separate bank accounts, different customer bases.