409A Valuation, explained: the essential guide for startups

What is 409A, how to do it, how much does it cost, all the important questions answered in this comprehensive guide

Charlie Ross

COO

Sep 7, 2026

What is a 409A valuation?

A 409A valuation is an independent appraisal of the fair market value (FMV) of your company's common stock, the type of shares held by founders, employees, and advisors.

It's required under IRC Section 409A, an IRS ruling that says: if you issue stock options to anyone, the strike price must be set at or above the FMV of the underlying stock on the grant date. Issue options below FMV and those options become "discounted options", triggering immediate tax liability and penalties for your employees.

One distinction worth understanding from the start, as Steve Allan of Allanytics explains:

"It is not about an enterprise value. The IRS really wanted to make sure these two were completely separated and understood."

—Steve Allan, Founder of Allanytics

Your 409A is specifically about the value of common stock, not the total value of your business. That's a meaningful difference, and it's why your 409A number will almost always come in lower than your fundraising valuation.

Why do you need a 409A valuation?

From a compliance perspective, the IRS requires private companies to report how much they pay for stock options when they’re granted or transferred. This helps them ensure that everyone is paying their fair share of taxes on those stocks.

Beyond complying to the laws of the land, getting your 409A valuation done also makes good business sense. An accurate assessment of your company's value gives you better insight into how much money it’s worth, which lets you make better decisions about the future. Other benefits include:

• Establishing fair market value. A 409A valuation helps to ensure that the value assigned to equity awards is fair by determining an independent and objective market value for your startup’s stock or options.
• Avoiding tax penalties. Without an FMV established through a 409A valuation, founders may be subject to hefty tax penalties on the equity they receive.
• Legally compliant. 409A valuations help ensure that startups comply with IRS regulations, protecting against potential legal issues and penalties.
• Improved investment decisions. A 409A valuation is an excellent way for investors to make more informed decisions about investing in a startup by providing an objective evaluation of its value.
• Raising startup capital. If you ever need to raise capital or attract new investors, having a 409A valuation done ahead of time will make the process smoother and faster, two things new startup owners always like to hear.

By obtaining a 409A, startups can protect themselves from potential legal and financial risks while also gaining valuable insight into the true market value of their company’s stock or options.

This helps both founders and stakeholders have greater confidence in their equity awards and ultimately helps to reduce the risk of unexpected penalties.

Why do you need to get the strike price right?

For your team's sake, you want to get the strike price right. A 409A valuation is a compensation tool, not just a compliance checkbox.

"Ideally, you want it as low as is reasonably defensible. It's an HR tool — specifically to help your employees participate in the upside. We want to make sure we're keeping it within the range. But it is for compensation purposes."

—Steve Allan

The lower your 409A FMV, within defensible limits, the lower the strike price on every option grant you make. A lower strike price means more room between what your team pays to exercise and what those options are worth at exit.

Done well, your 409A is one of the few levers that directly makes your equity offers more competitive.

The cost of getting it wrong

The compliance risk of a non-compliant 409A falls on your employees, not your company. That's the part most founders don't fully grasp.

"The penalties are actually on the employee, the participant, not the company or the employer. Under 409A, if you violate those rules, it's actually a 20% excise tax penalty payable by the employee." — Matt Secrist, Partner, Taft Law

It's a double exposure: employees face accelerated income recognition, paying tax before they've exercised or seen any liquidity, plus the 20% excise tax on top. The people you were trying to incentivise end up worse off than if you'd done nothing.

"It's a kind of messy situation. You're well intended to incentivize employees, but if you don't follow these rules, not only are they including money amounts in their income before the wage piece — they're also having an extra tax bill on top of it."

— Jason Atkins, Co-Founder, Cake Equity

Safe harbor: Why you need a qualified 409A provider.

You have two ways to comply with 409A: do the valuation yourself, or hire a qualified independent third party.

If you hire a qualified independent firm, you receive safe harbor status, and that changes everything.

"If you hire someone who's an independent qualified third party, you get this thing called a safe harbor. Safe harbor basically means the onus now falls on the IRS to prove that the value of the stock is wrong. Whereas if you do it yourself, the onus falls on you to prove that it's right."

—Steve Allan

For most founders, safe harbor is the deciding factor. The cost of a qualified valuation is modest. The cost of defending a self-assessed valuation against an IRS challenge is not.

When do you need a 409A valuation?

Before your first option grants

Even if you haven't raised a priced round, if you're granting stock options to anyone, you need a current, compliant 409A. There's no early-stage exception. Options require a strike price, and a strike price requires a defensible FMV.

Every 12 months

Under IRS safe harbor rules, a 409A from a qualified independent appraiser is valid for 12 months. Most companies get a fresh valuation after each funding round rather than waiting for the annual clock to run out.

After a material event

A material event resets the clock: your existing 409A no longer qualifies for safe harbor. Common triggers:

• Closing a priced funding round
• Signing a term sheet (many practitioners treat this as a material event, even before closing)
• A significant change in revenue or ARR
• A major new customer or contract
• Approaching an IPO, merger, or acquisition

The term sheet timing trap: Once a term sheet is signed, a pending priced round is often treated as a material event. Companies commonly get a fresh valuation immediately after the round closes, not 12 months later.

What if you've only raised on SAFEs?

SAFEs are not priced rounds. There's no preferred share price to discount from. But if you're issuing options, you still need a defensible FMV, though the methodology looks different at this stage.

Without a preferred share structure, the typical common/preferred discount doesn't apply in the same way. Your 409A value may land closer to your SAFE cap. But you still need one before making any grants.

How to get a 409A valuation

You have 3 options:

Do it yourself

Permitted under 409A, but you lose safe harbor. If the IRS challenges your valuation, the burden of proof is on you. Not recommended for most companies: the protection of safe harbor is the main reason founders pay for a third-party valuation in the first place.

Hire a qualified independent firm

The standard approach. Delivers safe harbor status, an audit-proof report, and a defensible methodology. The key word is "qualified": the firm must meet IRS standards, either through certifications or volume of completed valuations.

Use an integrated cap table platform (like Cake)

Combines your existing cap table data with the 409A workflow. No manual data export, no re-entry risk, no version control problems. Strike prices sync directly to your option grants once the report is finalised.

What to look for in a provider?

Three things that matter:

1. Qualified for safe harbor

The whole reason you're paying for a third-party valuation. Confirm the firm meets IRS qualification standards before engaging.

2. Willing to explain their methodology

A walkthrough call should be standard, not an upsell. If your provider can't explain their approach, that's a signal about the quality of the work.

3. Appropriately priced

Early-stage 409A valuations don't need to be expensive. Anything from $1,000 to $3,000 is going to typically be where the pricing range would be.

409A valuation requirements

A successful 409A report requires thorough documentation and data collection from the company, so it's essential to be aware of all necessary documents before starting your process, such as:

1. Financial statements: Last 3 years (if available) + the current.
2. Financial projections: Next 3 years (if available) in Excel with assumptions.
3. Cap table and options register: Exported directly from Cake.
4. Articles of Incorporation
5. Total expected options to be granted using this 409A valuation
6. Recent Term Sheet/Stock Purchase Agreement
7. Previous 409A Valuation
8. Recent pitch deck: If unavailable, list key developments.
9. Next major milestones: E.g., next fundraising or product development phase.

Cake's cap table export simplifies this step considerably.

409A valuation and stock options

Most early stage companies apply an equity compensation strategy when building their startup teams. Stock options and 409A valuations are two important concepts to understand if you want to expand or hire in the US. The two are closely related and must be considered in tandem when setting up a company’s equity compensation plan.

The exercise price of a stock option is the amount an employee pays to purchase a share of the company’s common stock at its fair market value. This is determined using a 409A valuation, which must be completed before any stock options can be issued.

409A valuation refresh

A valuation refresh is an updated 409A report that is done when the fair market value of your company’s stock changes substantially from the original estimation.

Common mistakes to avoid

First off, make sure you don't skimp on quality. Quality does matter when it comes to 409A valuations, so it’s important to find qualified professionals with experience in the space.

Look for someone who understands the nuances of private company valuation methods and can provide you with reliable data and analysis.

Another mistake to avoid is basing your 409A valuations on outdated information. It's important to ensure that the valuation report uses current data and considers recent events that may have affected your company’s value, such as investments or new products/services.

Finally, don't forget about documentation! Make sure you document everything related to your 409A valuations – from assumptions made during calculations to market conditions and other factors.

How much does a 409A valuation cost?

The cost of such valuations will vary depending on the size and complexity of your business, but you can generally expect to put a 409A valuation cost somewhere between $1000 and $25,000.

The real cost of 409A valuation

If you fail to properly conduct a 409A valuation, there may be a higher price to pay.

For startups, it’s necessary to ensure that your 409A valuation up-to-date and accurate.

Inaccurate valuations can lead to many problems down the line, such as difficulty raising capital or creating major discrepancies between what shareholders expect to receive compared to what the company actually has valued.

Once again, keep in mind if your valuation falls outside of the safe harbor, you may incur penalties.

Frequently asked questions

What is a 409A valuation?

A 409A valuation is an independent appraisal of the fair market value (FMV) of a private company's common stock. It's required under IRS Section 409A to set compliant strike prices on employee stock options. Without a defensible 409A, options may be treated as discounted compensation, triggering immediate tax liability for employees.

Why is my 409A lower than my fundraising valuation?

Your fundraising valuation reflects the price investors paid for preferred shares, which carry protections (liquidation preferences, anti-dilution rights) that common stock doesn't have. Appraisers discount common stock FMV accordingly.

What is 409A safe harbor?

Safe harbor is the IRS protection you receive when you hire a qualified independent appraiser. It shifts the burden of proof: instead of you having to prove your valuation is correct, the IRS must prove it's wrong. You lose safe harbor if you do the valuation yourself or use a non-qualified provider.

What happens if I don't get a 409A valuation?

Options issued without a compliant 409A may be classified as "discounted options." This triggers two consequences for employees: they must recognise income at vesting (before any liquidity event), and they owe a 20% excise tax on top.

How long is a 409A valuation valid?

Under IRS safe harbor rules, a 409A from a qualified independent appraiser is valid for 12 months, or until a material event, whichever comes first.

Do I need a 409A if I've only raised on SAFEs?

Yes, if you're issuing stock options. SAFEs don't create a preferred share structure, so the methodology differs, but you still need a defensible FMV before making any option grants.