For business owners operating across more than one state — a common reality for HYON Q's clients spread across Chicago, Miami, and Houston — limited liability company taxes get more complicated than most people expect, because the federal rules are only half the picture.

At the federal level, the rules are consistent: your LLC's default classification (disregarded entity or partnership) determines how profit flows to your personal return, and every state generally follows that federal classification. Where it gets complicated is state-level treatment on top of that classification.

A few state-specific realities worth knowing:

  • Illinois imposes a Personal Property Replacement Tax on LLCs taxed as partnerships, on top of standard pass-through treatment — a cost many owners don't realize applies until they see it on a filing.
  • Texas has no state income tax, but LLCs above a revenue threshold owe the Texas franchise tax (the "margin tax"), which is calculated differently than a typical income tax and catches owners off guard if they've only ever operated in income-tax states.
  • Florida has no personal income tax either, which makes it one of the more favorable states for pass-through owners — but multi-state owners still need to track where income was actually earned, since other states will still claim their share.

The federal Qualified Business Income deduction — 20% of qualified pass-through profit, now permanent under recent tax law — generally follows you regardless of state. But not every state conforms to federal QBI treatment, which means your effective savings can look different depending on where you're filing.

Here's the pattern we see most often: an LLC owner sets up their structure once, in one state, and never revisits it as the business expands into new markets. The paperwork that made sense at $80,000 in revenue in a single state stops making sense once there's activity in three.

The gap-revealing question: has anyone actually reviewed your entity's state tax exposure since your business started operating across state lines — or is your structure still built for the business you had two years ago?

If you're not certain, that's a conversation worth having before your next filing, not after. HYON Q's free 30-minute strategy call looks specifically at multi-state exposure alongside your entity structure.