‹ Delaware Filing Guide · All Penalties
Operating in Delaware without a certificate of authority can bar your LLC from Delaware courts and create back-fee exposure. Here's the full cost.
Delaware doesn't charge a flat civil penalty for unregistered foreign LLCs under 6 Del. C. s. 18-907. But you can't maintain any action, suit, or proceeding in Delaware courts until you register AND pay all back annual taxes plus penalties for the years you did business unregistered. Delaware's $300/year LLC tax accumulates with $200/year late penalties and 1.5% monthly interest. The Delaware Attorney General can sue in the Court of Chancery to recover delinquent annual taxes. Contracts and personal liability are preserved.
| What's at stake | If you don't register | Severity |
|---|---|---|
| Civil penalty | No flat civil penalty in the statute, but this does not mean free. Your real cost runs through back fees and the loss of court access (see below). For an LLC trying to enforce a contract or collect a debt, the closed-door rule is often more expensive than any flat fine would be. | Medium |
| Back fees on cure | You owe every fee and tax that would have been due if you had registered on time. That includes registration fees, annual report fees, and franchise tax for each year unregistered. Interest accrues on unpaid amounts. | High |
| Right to sue in state court | Closed. You cannot bring or maintain any lawsuit in state court until you register. If you need to sue a customer, a partner, or a vendor, you have to register first. You can still defend yourself if someone sues you. | High |
| Contract validity | Your contracts stay enforceable. Failing to register does not void any deal you signed, and the other party still owes you what they agreed to. | Low |
| Personal liability | Your personal assets are still protected by the LLC. Failing to register does not by itself pierce the corporate veil. Other liability theories like veil-piercing, personal guarantees, and fraud are unaffected. | Low |
| State tax exposure | Yes. Delaware imposes a $300/year flat LLC tax on all foreign LLCs registered in Delaware under 6 Del. C. s. 18-1107. Late payment triggers a $200 penalty plus 1.5% monthly interest. Unregistered foreign LLCs are also liable for back taxes for years of unregistered operation. Delaware does not impose state corporate income tax on out-of-state income but does tax Delaware-source income. | Medium |
| How it gets enforced | State Attorney General can file suit to collect what you owe. AG offices actively pursue these cases. This is not a theoretical risk. | N/A |
Here's how to fix it before any of this catches up to you.
You can file the foreign qualification yourself directly with the Delaware Secretary of State for the standard filing fee. The application looks straightforward, but rejections are common. A wrong form version, a missing certificate of good standing from your home state, or a name conflict with an existing entity will bounce the filing and reset the clock by two to three weeks. Every week you stay unregistered is another week of penalty accrual.
Northwest reviews your application before it goes in, catches the rejection-causing mistakes (form version, name conflict, missing certificate of good standing), and submits same-day in most states. They'll also serve as your registered agent so the filing meets the statutory requirement on day one. If something is wrong, they fix it before the Secretary of State sees it, not after a rejection notice arrives three weeks later.
Get Northwest Registered Agent ↗Other options
Filing yourself anyway? See the Delaware foreign LLC registration guide for the form, fee, and step-by-step process.
Answer 3 questions to find out if your LLC needs to register in other states.
See the form, fee, and step-by-step process for changing your registered agent in Delaware.
Learn what counts as “doing business” and which activities trigger the foreign qualification requirement.
This page provides general information based on publicly available Delaware statutes. It is not legal advice and is not a substitute for advice from a licensed attorney about a specific situation. Statutes change. Court interpretations vary by case. Verify current statute text with the Delaware legislature before relying on the information here. If you are facing enforcement action or a pending lawsuit, consult a Delaware business attorney.