How to Change Your Business Address in Ohio: Form 521 and 8822-B

To change your business address in Ohio, file Form 521 (Statutory Agent Update) with the Secretary of State for $25, then separately notify the Ohio Department of Taxation and the IRS. Each system keeps its own records, and updating one does not update the others. Missing any of the three can send your tax notices to the wrong place or, in the worst case, trigger cancellation of your business entity.

Figure Out Which Address Is Actually Changing

Ohio requires every LLC, corporation, and limited partnership to keep a statutory agent on file with a current Ohio street address.¹ That agent is whoever accepts lawsuits and official notices for your business. The address has to be a physical location where someone is present during normal business hours. A P.O. box will not work, even one with a street-style address.²

Most small business owners serve as their own statutory agent at their own office, so a physical move means the agent address needs to change too. If you use a separate registered agent service that isn’t moving, and only your day-to-day office is relocating, you may not need to file Form 521 at all. The Secretary of State tracks your statutory agent’s address, not your operational address.

Sole proprietors are a different story. Sole proprietorships don’t register as an entity with the Secretary of State, so there is no statutory agent to update. The exception is a registered trade name or “doing business as” name, which you can update online through Ohio Business Central using Form 524A for $25.³

File Form 521 With the Secretary of State

Form 521 is the standard update form for corporations, LLCs, limited partnerships, and other registered entities.³ Before you start, pull together:

Your entity’s full legal name, exactly as it appears in the Secretary of State’s records.
Your charter or entity number. If you don’t have it, look it up on the Secretary of State’s business search tool.
The agent’s new Ohio street address, with city, state, and zip. No P.O. boxes.
An authorized signature: a corporate officer for corporations, or a member or manager for an LLC.

You can file online through Ohio Business Central at ohiobusinesscentral.gov, or mail the PDF. Online is faster, with standard filings typically processed within one business day. Mail filings run about a week. Expedited service is available in three tiers starting at $100 for a two-day turnaround, but standard online processing is quick enough that most address changes don’t need it.⁴ Once filed, confirm the change went through by searching your entity on the Secretary of State’s business portal.

Update the Ohio Department of Taxation Separately

The Secretary of State does not share address updates with the Ohio Department of Taxation. These are separate systems, and skipping the tax update means your tax notices keep going to the old address.

For sales tax, use tax, and employer withholding accounts, update your address online through the OH|TAX eServices portal. For other tax types, including the Commercial Activity Tax, use the Department of Taxation’s Business Address Update Form. You’ll need your federal tax ID number, legal name, old address, new address, and the effective date.⁵

Two details trip people up. First, moving a fixed place of business (not just a mailing address) triggers a $25 license fee. Second, a vendor’s license does not transfer between counties. If your move crosses a county line, you have to cancel your existing vendor’s license and get a new one from the auditor in your new county.⁶ Handling this incorrectly can create sales tax collection problems that cost far more than the license itself.

Notify the IRS With Form 8822-B

Any business with an Employer Identification Number should file Form 8822-B (Change of Address or Responsible Party – Business) to update its records with the IRS.⁷ The form covers both a mailing address change and a physical location change. It cannot be filed electronically. Print it, complete it, and mail it to the IRS center in Kansas City, MO 64999 if your business is in Ohio.⁸

A simple address change has no strict deadline, but a change of responsible party has to be reported within 60 days.⁷ IRS mail processing takes several weeks, so file promptly if you want your correspondence redirected before the next tax cycle.

Other Accounts and Agencies to Update

Treating the Secretary of State filing as the whole job is the most common mistake. In practice, a business address touches a long list of records. Work through the ones that apply to you:

Ohio Bureau of Workers’ Compensation, if you carry coverage, through BWC’s online policy update system.
Ohio Department of Job and Family Services, if you have employees, for unemployment tax purposes.
City or municipal tax departments. Many Ohio municipalities levy their own income tax. Moving to a new municipality may mean registering with the new city and closing the old account.
Professional licenses, health permits, and industry-specific registrations tied to your business address.
Business bank accounts, merchant processors, and lines of credit, so statements and tax documents reach you.
Business insurance policies, especially property and liability coverage tied to a specific premises.

What Happens If You Don’t Update

An outdated statutory agent address is where things get expensive. For corporations, the Secretary of State sends notice to the last known address or email, gives you 30 days to fix the problem, and cancels your articles of incorporation without further notice if you don’t respond.¹ Cancellation strips your legal authority to operate in Ohio. You can reinstate within two years by filing an application and paying the fee, but contracts, lawsuits, and liability protection all get complicated during the gap. LLCs face a comparable process under their own provisions. The filing costs $25 and takes a day online, so there’s no reason to let it slip.

1
Ohio Legislative Service Commission. Ohio Revised Code 1701.07 – Statutory Agent
2
Ohio Legislative Service Commission. Ohio Revised Code Chapter 1706 – Limited Liability Companies
3
Ohio Secretary of State. Business Filing Forms and Fee Schedule
4
Ohio Legislative Service Commission. Ohio Administrative Code Rule 111:1-2-01 – Corporations Expedited Filing
5
Ohio Department of Taxation. Business Address Update Form
6
Ohio Department of Taxation. Update Address (Business)
7
Internal Revenue Service. About Form 8822-B, Change of Address or Responsible Party – Business
8
Internal Revenue Service. Where to File Form 8822-B