DE SOS Business Search: A Complete Guide

The Delaware Division of Corporations is the state office behind the lookup many people call the DE SOS business search. When you need to identify a company or check a business relationship, official state records give you a reliable starting point. The office is part of Delaware’s Department of State and provides government information about registered entities. Good standing is a status showing that an entity has met its required state filing and tax obligations. The entity search provides basic public details, while status checks and official documents require separate services. This guide explains how to choose the right record for identification, compliance checks, and formal proof. Use the free lookup for basic identification, not as proof that an entity is in good standing.

Key Takeaways

• The free entity search shows basic details, not current status.
• Paid reports provide status and, at one level, tax and filing history.
• A certificate of good standing is official proof.
• Delaware LLCs and corporations have different annual obligations.
• A business license may be required for trade or business in Delaware.

How to Use the DE SOS Business Search

Start with the entity’s legal name or file number, since either can retrieve a Delaware record. The Delaware business entity search works for LLCs and other entity kinds. Login is not needed for the public lookup, and account-specific filing details depend on the account.

The Delaware SOS entity lookup is available through the Division of Corporations’ online services. A Delaware SOS LLC search uses the same lookup as searches for other legal forms. The free results include active and inactive entities, but do not display status.

Search by entity name or file number

Enter a legal name or file number in the ICIS name search. Name searches are not case-sensitive; quotation marks can narrow a search to an exact match. Open the detail page to inspect the formation date and registered agent’s name, address, and phone number.

The free page also lists the entity name, file number, formation date, registered-agent details, entity kind, entity type, and residency. Entity kind identifies the legal form; entity type gives its classification, such as Corporation and General. Results reflect the Division of Corporations database on the day you search.

Read the free result and check name availability

The lookup is not a reverse directory for finding owners or registered agents. A missing result may suggest that a name is available, but Delaware requires a distinguishable name. A Delaware name check also does not establish federal trademark clearance; check separately with the USPTO.

The real-time name availability search checks proposed names, and a Delaware name reservation costs $75 for 120 days. Keep searches targeted because automated or excessive repeated searches can lead to suspended access.

Delaware prohibits data mining and excessive repeated searches that may harm its systems or customer experience. Keep searches targeted because automated or excessive repeated searches can lead to suspended access.

Which Delaware Records Can You Verify Online?

A paid status report answers a different question from the free entity search because it displays status and, at the higher tier, tax and filing history. Choose the record that matches the proof you need: a report shows status, while a certificate is official proof of good standing.

Neither paid status report is an official certificate of good standing. The options differ in the information they display:

Option	What it provides	Official proof of good standing?
Free entity search	Basic identity and registered-agent details, no current status	No
$10 status report	Current status, printable or emailable	No
$20 status and tax/history report	Status, last 5 filings, tax assessment, authorized shares when applicable, and tax due; no document images	No

Compare free and paid status information

The $10 online status report can be printed or emailed. The $20 report adds the last five filings, franchise tax assessment, authorized shares when applicable, and tax due. Neither report includes document images. Officer and director names and addresses appear on annual-report images, not in the status application.

Request official certificates and filed copies

Delaware SOS forms and filing services handle actions beyond an entity lookup. Online services include checking status and corporate history, reserving names, paying annual taxes, filing corporate annual reports, and filing UCC 1 and UCC 3 documents. For a certificate or a plain or certified copy of a filed document, use the Document Filing and Certificate Request Service or a Delaware online agent.

Request a certificate of good standing when a bank, agency, or transaction specifically needs official proof.

What Filings and Licenses Must Delaware Entities Handle?

Delaware compliance depends on entity type: an LLC’s annual tax is due June 1, while domestic corporations report and pay franchise tax by March 1. These are separate obligations, and an LLC does not file an annual report. Late or unpaid LLC annual tax brings a $200 penalty plus 1.5% monthly interest on the tax and penalty.

LLC and partnership annual tax

Effective August 1, 2026, Delaware LLCs formed in the state pay an annual tax of $400, due June 1 each year. Do not confuse this LLC payment with corporate franchise tax. The annual tax also applies to partnerships under Delaware’s annual tax process.

Corporation reports and franchise tax

Domestic corporations file an annual report online and pay franchise tax by March 1. The report asks for a description of the business’s nature. Its fee is $25 for exempt corporations and $50 for non-exempt corporations. Missing the deadline brings a $200 penalty plus 1.5% monthly interest on the tax and penalty.

The minimum franchise tax is $175 under the Authorized Shares Method or $400 under the Assumed Par Value Capital Method. The maximum is $200,000, or $250,000 for a Large Corporate Filer. Domestic corporations owing at least $5,000 in franchise tax pay quarterly estimates: 40% by June 1, 20% by September 1, 20% by December 1, and the remainder by March 1.

Foreign corporations file an annual report by June 30 and pay a $250 filing fee. The Division of Corporations annual-report and business-entity-tax application runs daily from 8:00 a.m. to 11:45 p.m. Eastern Time. Transactions over $5,000 require ACH debit.

Delaware business license requirements

Entities conducting trade or business in Delaware need a Division of Revenue business license when business starts. This includes entities located in Delaware that conduct business outside the state. The state license does not replace applicable federal, state, city, or county registrations. Employers must register with the Division of Unemployment Insurance and the Office of Workers’ Compensation. Certain professions also need licenses from the Division of Professional Regulation.

After its first licensed year, a business may choose a three-year license for three times the regular annual fee.

Most licenses last one year and expire December 31; three-year licenses expire December 31 of the third year. Renew by December 31 before the license year. Most first-year licenses are prorated. Online applicants can print a temporary license after registration or renewal; permanent licenses generally arrive within 10 working days.

• Confirm whether the business needs a Delaware license.
• Check other agency registrations and employee or professional requirements.
• Calendar renewal by December 31.
• Apply again after an ownership or legal-entity change.

Licenses cannot transfer to a new owner. A legal-entity change requires a new license and notice to the Business License Department that the former entity is out of business. Before relying on a license after a sale or entity conversion, confirm the new owner or legal entity has made a fresh application.

Conclusion

The right Delaware lookup depends on whether you need identity details, official status, a filed document, or a filing action. Basic identity information and compliance proof come from different government services, so choose the record that fits the task. Use the Division of Corporations for entity records and corporate filings, or the Division of Revenue for business licenses. If a bank or agency needs formal proof, request the specific official document rather than relying on a screen result. Begin with the entity search for identification, then request the specific official service your task requires.

FAQ

Can Delaware entity-search results confirm that a company is currently active?

No. Delaware entity-search results include active and inactive entities but do not show current status. A paid status report displays current status, while a certificate of good standing provides official proof when an institution requires it. The right choice depends on whether you need an informal status check or a formal document for a transaction, bank, or agency.

Does the free Delaware entity search show an LLC’s owners or members?

No. The free result lists registered-agent details, but it is not an owner or member directory. It identifies the entity and provides information such as its file number, formation date, legal form, and registered agent. If you need ownership information, the free entity-search result is not the record to rely on.

Can a Delaware name be available for registration but still create a trademark problem?

Yes. Delaware name availability and federal trademark clearance are separate checks. A name may pass the state’s distinguishability test and still conflict with a federally registered mark. Check the USPTO’s trademark records separately before using a name for branding, signs, packaging, or other public-facing materials.

Are officer and director names included in Delaware’s online status report?

No. The status application does not include officer and director names or addresses. Those details appear on annual-report images, which are separate from the status report. A report showing current status or tax history is not a substitute for reviewing the relevant filed annual-report image when you need those people’s details.

Does every Delaware business need a state business license?

No. The Delaware state license requirement applies to entities conducting trade or business in Delaware. A state license does not replace any applicable federal, state, city, or county registrations. Employers may also need employee-related registrations, and certain professions require additional licenses. Check the requirements that apply to the business’s activities and location.