Delaware House Bill 400 has introduced a major update to the state’s tax and fee structure, and businesses incorporated in Delaware need to pay close attention. The law affects a wide range of entity types and administrative services, making compliance more expensive for many companies in 2026.
Delaware remains one of the most popular states for business formation because of its established legal system and corporate reputation. However, HB 400 changes the cost equation. If your business is already incorporated there, or you are considering forming a new entity, it is now more important than ever to understand how the new rules affect annual taxes, filing fees, and long-term maintenance costs.
What is Delaware House Bill 400?
Delaware House Bill 400 is a legislative update that increases several taxes and corporate service fees administered by the Delaware Division of Corporations. The bill was designed to modernize the state’s fee schedule and align it with current operating costs and inflation.
For business owners, the practical effect is straightforward: maintaining a Delaware entity will cost more. Some of the changes are retroactive, while others take effect later in the year, which means companies need to pay close attention to both timing and budget planning.
When Do the Changes Take Effect?
The new law uses two main effective dates. The first is January 1, 2026, which applies retroactively to annual franchise taxes for certain entity types, including LLCs, LPs, LLPs, and LLLPs. The second is August 1, 2026, when most of the remaining filing, administrative, and dissolution fee increases become active.
This split timeline matters because it can affect businesses differently depending on when they file, renew, or dissolve. For example, an entity dissolved on or after August 1 may still be responsible for the higher annual tax because the increase is tied back to the beginning of the year.
Which Businesses Are Affected?
HB 400 affects several common business structures, especially those registered in Delaware. LLCs and limited partnerships are among the most directly impacted because of the increase in annual franchise taxes. LLPs and LLLPs also face higher per-partner taxes, which can be significant for larger ownership groups.
Foreign corporations are affected as well, particularly through annual report fee increases and higher late penalties. In addition, businesses that frequently request certified copies, amendments, or expedited filings will also notice higher administrative costs.
How the Tax Increases Work
One of the biggest changes under HB 400 is the rise in annual franchise taxes for LLCs and other pass-through entity types. The increase may seem modest on paper, but it becomes more meaningful when you factor it into yearly operating expenses. For startups and small businesses, even a relatively small tax increase can affect cash flow and financial planning.
The retroactive nature of the change makes it especially important to understand. Because the increase applies from January 1, 2026, business owners may face higher obligations even if the law passed later in the year. That means your compliance budget should reflect the new rate, not the old one.
Higher Filing and Administrative Fees
The law does not only affect annual taxes. It also raises the cost of routine business services, including certified copies, filing amendments, and expedited processing. These are the kinds of services that many businesses use during fundraising, banking, ownership changes, or legal restructuring.
For companies that move quickly or revise their corporate records often, these increases can become a recurring expense. What may have once been a minor filing cost can now add up over time, especially if your business needs official documents on a regular basis.
Why Delaware Raised the Fees
Delaware’s business registry supports a massive number of entities, and the state relies heavily on corporate revenue. HB 400 reflects the state’s effort to update its fee structure so it better matches the cost of managing that system.
From the state’s perspective, the fee increase is a way to support administrative operations and keep the corporate infrastructure running efficiently. From the business owner’s perspective, it is a reminder that choosing a state for incorporation also means considering the long-term cost of staying compliant there.
What Business Owners Should Do Now
If your company is already formed in Delaware, now is the time to review your compliance budget for 2026. Make sure your forecasts include the updated tax rates, filing fees, and any service costs your business regularly uses. If you are thinking about dissolving or restructuring, it is also worth checking how the retroactive tax rules may affect your final bill.
If you are still choosing where to incorporate, HB 400 should be part of that decision. Delaware remains a strong jurisdiction, but higher maintenance costs may make other states more attractive depending on your business model, budget, and growth plans.
Final Thoughts
Delaware House Bill 400 is a clear sign that the cost of maintaining a Delaware entity is rising in 2026. While the state still offers strong legal advantages, business owners now need to account for higher taxes, higher filing fees, and more expensive administrative services.
For founders and small business owners, the smartest move is to update your budget early and make sure your entity strategy still fits your financial goals.