Blue Sky Laws Explained: State Filings for Startups and Funds

Blue sky laws are the securities laws of the individual US states. For startups and venture funds raising under Rule 506 of Regulation D, federal law bars states from requiring registration, but many states still require a notice filing (usually a copy of Form D) and a fee, often within 15 days of the first sale to a resident.

Missing those filings does not undo the federal exemption. It can still leave a compliance gap that investors often look for and that state regulators can act on.

Definition: Blue sky laws are state statutes that regulate the offer and sale of securities within a state, requiring registration or an exemption for each offering, licensing brokers and advisers, and giving state regulators authority to investigate and prosecute securities fraud.

This is one of the least exciting topics in venture. It is also one of the easiest to get wrong without noticing.

Worked example (illustrative; fees change, so check current schedules): A seed-stage company closes a $1.5M SAFE round under Rule 506(b) with investors living in New York, Texas, Delaware, and Florida. It files Form D with the SEC within 15 days of the first sale. None of the four states can require registration, but three want a notice:

State	What to file	Deadline	Fee for this round
New York	Form D through NASAA's EFD	15 days after first sale in New York	$1,200 (offerings over $500,000)
Texas	Form D through EFD	15 calendar days after first sale in Texas	$500 (0.1% of $1.5M is $1,500, capped at $500)
Delaware	Form D plus Form U-2 consent to service	15 days after first sale to a Delaware resident	Check the Division's current fee schedule
Florida	Nothing for Rule 506	Not applicable	None

One round. Three state filings, each under its own fee rules, and a separate 15-day clock in each state.

Where blue sky laws come from

The name is older than federal securities law. Kansas passed the first state securities statute in 1911, and other states soon followed. In 1917 the US Supreme Court upheld state securities laws in Hall v. Geiger-Jones Co., describing the schemes they targeted as having no more basis than "so many feet of 'blue sky.'"

By the time Congress passed the Securities Act of 1933, companies already faced state rules. For the next six decades, a company selling stock in ten states dealt with the SEC plus ten state registrations or exemptions. According to NASAA, most state securities laws today are based on one of three model acts (1956, 1985, or 2002), but state-by-state compliance stayed expensive.

What NSMIA changed for blue sky laws in 1996

The National Securities Markets Improvement Act of 1996 (NSMIA) added Section 18 to the Securities Act and created "covered securities" that states may not require to be registered or qualified. The categories include exchange-listed securities, securities of registered investment companies, sales to qualified purchasers, and certain exempt offerings. Securities sold under the SEC's rules issued under Section 4(a)(2), which is where Rule 506 lives, are covered under Section 18(b)(4)(F).

A Rule 506(b) or 506(c) offering is therefore a covered security, and no state can require the issuer to register or qualify it. That's the part people remember.

The part they forget: Section 18 leaves three powers with the states, and all three still apply to venture deals.

Notice filings. States may require a copy of documents filed with the SEC (in practice, Form D) and a consent to service of process, solely for notice purposes.
Fees. States may charge a fee for that notice.
Anti-fraud enforcement. States keep authority to investigate and bring enforcement actions for fraud or deceit, and for unlawful conduct by brokers and dealers.

The SEC's guidance on both Rule 506(b) and Rule 506(c) makes the same point in one line: federal law preempts state registration, but states may still require notice filings and collect fees. For a deeper look at the two exemptions, see 506(b) vs. 506(c).

Blue sky filings: what a Rule 506 issuer actually has to file

Because blue sky compliance for a 506 offering is a notice regime, the work is largely mechanical. It is also easy to forget, which is one reason it shows up in diligence.

Step 1: File Form D with the SEC. The deadline is 15 days after the first sale of securities in the offering. The SEC does enforce it: in December 2024 it settled charges against three companies for failing to file Forms D on time, with civil penalties of $60,000 to $195,000.

Step 2: Identify every state where a purchaser resides. Not where the company is. Counsel will look at the purchaser's address on the subscription documents.

Step 3: File the notice in each state that requires one. Many states take a copy of Form D through NASAA's Electronic Filing Depository (EFD), a system that lets filers submit notice filings and fees to participating state regulators in one place. Some states also want a consent to service of process on Form U-2: Delaware's rules, for example, require a Form D notice and a Form U-2 no later than 15 days after the first sale. A few states ask for nothing; Florida's securities regulator says it requires no notice filing, fee, or consent to service for Rule 506 offerings.

Step 4: Pay the fee. Fees vary by state and sometimes by offering size, so check each regulator's current schedule. New York charges $300 for offerings of $500,000 or less and $1,200 above that, under the rules it adopted in December 2020 that moved Regulation D notices onto EFD. Texas charges 0.1 percent of the offering amount, capped at $500.

Step 5: Track renewals and amendments, and repeat for each new state. New York filings are valid for four years, and amendments there carry a $30 fee. If a later closing adds an investor in a new state, that state's clock starts with that sale.

New York's blue sky notice rules

New York used to be the outlier. Before December 2, 2020, issuers filed New York's own paperwork (including Form 99) before selling to New York residents.

The revised rules of the New York Attorney General's Investor Protection Bureau now require Rule 506 issuers to file Form D through EFD within 15 days of the first sale in or from New York, pay $300 or $1,200 depending on offering size, and renew every four years. The Attorney General's guidance also says EFD filers do not need to send a separate Form U-2. As of September 2026, the Attorney General's registration page still points Rule 506 issuers to EFD, and we found no later change to these rules.

Why investors check blue sky compliance in diligence

Angels and fund managers sit on both sides of this.

On the company side. During financial due diligence, a careful investor asks for the Form D and the list of state notice filings for every prior round. Missing state filings do not cost the company its federal exemption, but they are a gap to cure with late filings. Many investors also read them as a signal of how the company handles legal housekeeping.

On the fund side. A venture fund selling limited partnership interests, or an angel syndicate selling SPV interests, is itself making a securities offering, usually under Rule 506. So it files its own Form D and state notices wherever its investors live. Fund counsel usually handles this, but the general partner is responsible.

On the fraud side. Preemption removes state registration, not state anti-fraud authority. A state regulator can still investigate an issuer or fund manager for misleading statements to its residents, whatever the federal exemption.

But missing a state filing doesn't cost you the exemption

True, and it's the strongest argument for not losing sleep over this. The federal Rule 506 exemption stands on its own. A late notice can usually be cured with a filing and a fee, and plenty of small rounds have gone through with gaps that nobody noticed for years.

But.

"Nobody noticed" isn't a compliance strategy. The gap tends to surface at the worst time, in diligence for the next round, when counsel is billing and the investor is deciding how careful you are. And the state keeps its enforcement authority either way. For a few hundred dollars and a calendar reminder, we'd rather just file.

A blue sky compliance checklist for a Rule 506 raise

Use this at each closing, whether you are raising or checking the work.

Confirm the exemption (506(b) or 506(c)) and, for 506(b), that no general solicitation occurred.
File Form D with the SEC within 15 days of the first sale.
Build a purchaser list with each investor's state of residence from the subscription documents.
For each state, confirm whether a notice is required, the form (Form D via EFD, Form U-2, or a state form), the fee, and the deadline.
File and pay in each state within its deadline, commonly 15 days after the first sale to a resident of that state.
Calendar amendment and renewal obligations (for example, New York's four-year renewal).
Keep proof of every filing and payment in the data room with the Form D.
Repeat steps 3 to 7 for every later closing.

Founders can pair this with the due diligence checklist so the filings are ready before an investor asks.

Common blue sky mistakes

Assuming Form D is enough. The SEC filing does not satisfy any state notice requirement.
Filing based on the company's state. The trigger is the purchaser's residence, not the issuer's headquarters.
Forgetting SAFEs and notes are securities. A SAFE round needs the same Form D and state notices as a priced round.
Treating the deadline as the closing date. The 15-day clock runs from the first sale, which may be an early closing weeks before the round is announced.
Letting an SPV lead handle it informally. The SPV is its own issuer with its own filings. Ask who is responsible, in writing.

Investors who want to see how a working fund handles this in practice can join 1752vc's Emerging Angels program: an 8-week live program for accredited investors new to angel investing, with a seat in a working fund's investment process, live diligence calls, deal reviews, monthly Investment Circles, and a private community. Joining requires SEC accredited investor status, the federal test that sits underneath the state exemptions this article covers. More investor-side explainers are in the Venture Capital section.

The bottom line

Blue sky compliance for a Rule 506 round is a checklist, not a legal puzzle: find where each investor lives, file the notice, pay the fee, keep the receipt. The hard part is remembering to do it at every closing.

The SEC cares that you filed once.

The states care where every check came from.

Key takeaways

Blue sky laws are state securities statutes that require registration or an exemption for each offering and give state regulators anti-fraud authority.
NSMIA (1996) made Rule 506 securities "covered securities" that states cannot require to be registered, but states may still require notice filings, fees, and a consent to service of process.
The notice trigger is the purchaser's state of residence; 15 days after the first sale in the state is a common deadline (New York, Texas, and Delaware all use it), and a few states such as Florida require no Rule 506 notice.
Many states take Form D notices through NASAA's EFD. Fees vary: New York charges $300 or $1,200 by offering size, and Texas charges 0.1 percent capped at $500.
Investors check prior-round Form D and state filings during diligence, and funds and SPVs make the same filings for their own offerings.

Frequently asked questions

What are blue sky laws?

Blue sky laws are the securities laws of individual US states. They require securities sold to state residents to be registered or exempt, license brokers and advisers, and let state regulators investigate and prosecute securities fraud. The name traces to a 1917 Supreme Court decision describing schemes with no more basis than "so many feet of blue sky."

Do blue sky laws apply to Rule 506 offerings?

Partly. Under NSMIA, Rule 506 securities are federal covered securities, so states cannot require them to be registered or qualified. States can still require a notice filing (usually a copy of Form D), a fee, and a consent to service of process, and they keep full authority to pursue fraud.

When do you have to make a blue sky filing?

It depends on the state, but many states, including New York, Texas, and Delaware, set the deadline at 15 days after the first sale to a resident. You file in each state where a purchaser lives, often through NASAA's Electronic Filing Depository, and a few states, such as Florida, require no Rule 506 notice at all.

How much do blue sky filings cost?

Fees are set state by state and change over time, so it is worth checking each regulator before filing. As examples, New York charges $300 for Regulation D offerings of $500,000 or less and $1,200 for larger ones, while Texas charges 0.1 percent of the offering amount with a $500 cap. Across many states, the fees add up quickly.

What happens if you miss a blue sky filing?

The federal Rule 506 exemption does not depend on state notice filings, so it is not lost. Counsel will usually suggest making the late filing promptly; depending on the state, it may face penalties, and the regulator keeps its enforcement authority. Missed filings also surface in investor due diligence as a gap to fix before the next round.

Sources

Disclaimer: This guide is for general education only and is not legal, tax or investment advice. Laws, market data and program terms change, so it may not reflect the latest developments or fit your situation. Treat it as a starting point, not a source of truth, and talk to a qualified lawyer, accountant or financial adviser before you make decisions.