The Real Cost of a Washington LLC

The primary upfront cost is the state fee to file your Certificate of Formation with the Secretary of State's Corporations & Charities Division. This is what legally creates the LLC. It is a one-time charge, and the current amount is published on the Secretary of State's fee schedule and shown on the cost card on this page.

One Washington-specific detail: filing online carries a small handling component in addition to the base Secretary of State charge, so the online total is slightly higher than the paper filing fee. Most people file online anyway because paper filings take much longer to process.

Optional formation-stage costs

• Expedited processing. If you need the LLC faster than standard processing, Washington offers expedited handling for an additional fee. This is worth it only if you have a real deadline.
• Name reservation. If you want to lock in a name before filing, a reservation carries a small fee. Most filers skip this and file directly.
• Certified copies or a certificate of existence. Banks or other states sometimes ask for these. They are inexpensive and ordered as needed, not required to form.

The recurring cost that catches people off guard is not large, but it is mandatory and easy to forget. Every Washington LLC files an Annual Report with the Secretary of State, due by the end of its anniversary month, and that report carries a state fee shown on the cost card.

The Annual Report keeps your registered agent, principal office, and governing-person information current. It is not a financial statement — you are not paying based on revenue, and you are not disclosing profit to the Secretary of State. The fee is flat.

What happens if you skip it

Missing the Annual Report deadline puts the LLC out of good standing. Left unresolved, it leads to administrative dissolution. Getting reinstated then costs more than the Annual Report would have, plus the disruption of losing your entity's authority to operate. In other words, the cheapest path is filing on time.

Beyond the Secretary of State, Washington's structure means most LLCs face costs at the Department of Revenue. This is the layer that surprises people coming from income-tax states.

State business license

Most Washington businesses need a state business license through the Department of Revenue's Business Licensing Service. There is an application fee to obtain it, and depending on where you operate, your license may include city endorsements — each of which can carry its own fee. The Business Licensing Service walks through which endorsements apply to your address and activity.

B&O tax

Because Washington has no income tax, the state relies on the Business & Occupation (B&O) tax, a tax on gross receipts. This is not a fixed fee — it is a percentage of your business revenue, and the rate depends on your classification (retailing, wholesaling, services, and so on). It applies regardless of whether the business is profitable, which is a meaningful difference from income-tax states. Depending on what you sell, you may also collect and remit sales tax. A CPA familiar with Washington can help you estimate this ongoing cost accurately.

Some costs are optional and depend on how you want to run the LLC. None of them are required by the state, but many owners find them worthwhile.

Registered agent service

You can serve as your own registered agent for free, but many owners pay for a commercial registered agent to keep their home address off the public record and guarantee someone is always available to receive legal documents. When Mainstay Filing forms your LLC, registered agent service is included, so this is not a separate line item to track.

Operating agreement

Washington does not charge for an operating agreement because you do not file it with the state. But if you want an attorney to draft or review it — sensible for multi-member LLCs — that is a legal cost separate from any state fee.

Trade name (DBA)

If you want to operate under a name other than your LLC's legal name, registering a trade name through the Department of Revenue carries a small per-name fee. This is optional and only relevant if you are branding under a different name.

Professional and local requirements

Licensed professions may have their own licensing costs, and specific cities or counties may require additional endorsements or permits. These vary widely by industry and location and are separate from the LLC itself.

When people ask what a Washington LLC "costs," the honest answer is that it depends on how you count. The pure state cost to create the entity and keep it registered with the Secretary of State is modest and predictable: the one-time Certificate of Formation fee and the recurring Annual Report fee, both shown on the cost card.

The larger variable is the Department of Revenue layer — the state business license and, especially, the B&O tax that scales with your revenue. For a small operation, these are manageable; for a high-revenue business, B&O tax can be a significant ongoing expense, which is exactly why it is worth understanding before you launch and worth planning for with an accountant.

Where Mainstay Filing fits is the formation and compliance side. Our service bundles the preparation and filing of your Certificate of Formation, year-round registered agent coverage, and the preparation and filing of your Annual Report into one flat yearly price — Washington's own fees pass through at cost — so the state paperwork is handled for a clear, predictable amount rather than a series of surprises. The exact figures for the state fees appear on the cost card so you always see the displayed price match what is charged.