What Is a 409A Valuation? A Founder's Guide to Cost, Timing and Safe Harbor (2026)
A 409A valuation is an independent appraisal of the fair market value (FMV) of a private company's common stock. US startups need one before they grant stock options, because the option's exercise price must be at least that fair market value. A 409A done by a qualified independent appraiser gives you "safe harbor": the IRS presumes the price is reasonable unless it can prove otherwise.
TL;DR: Get your first 409A before your first option grant, then refresh it at least every 12 months or after a material event such as a new funding round (Carta, 2026). A seed-stage 409A typically costs $500 to $1,500, and a Series C one $5,000 or more (Pulley, 2026). Pricing options below fair market value can cost the option holder income tax on the deferred amount plus a 20% additional federal tax and interest (IRC §409A).
What Is a 409A Valuation?
A 409A valuation is a written appraisal of what one share of your company's common stock is worth today. It is named after Section 409A of the Internal Revenue Code, which taxes deferred compensation. Stock options granted below fair market value count as deferred compensation, so the 409A price becomes the floor for every option you grant (Carta, 2026).
The 409A is about common stock, the shares founders and employees hold. Investors usually buy preferred stock, which comes with rights such as a liquidation preference. That is why the 409A price is normally lower than the price per share your investors paid. More on that in the comparison table below.
If you have read our guide to startup valuation by funding round, keep the two ideas apart: the headline valuation in a term sheet prices preferred stock in a negotiation, while the 409A prices common stock for tax purposes.
Why Does a Startup Need a 409A Valuation?
A startup needs a 409A valuation to set the exercise price of employee stock options at fair market value. For incentive stock options (ISOs) the tax code requires an option price "not less than the fair market value" of the stock at grant (IRC §422(b)(4)). For non-qualified options, a price below FMV can trigger 409A penalties for the employee.
In practice the 409A protects three groups:
- Employees and advisors, who would pay the tax penalty if the strike price is too low.
- The company, which has to report and withhold correctly, and whose auditors and acquirers will check every grant.
- Founders, because a clean option history makes due diligence in a fundraise or a sale faster.
ISOs have one extra rule: anyone owning more than 10% of the voting power needs a strike price of at least 110% of FMV and a term of no more than five years (IRC §422(c)(5), govinfo, 2023).
When Do You Need a 409A Valuation?
You need a 409A before your first option grant, and a new one every 12 months or sooner if something material changes. The Treasury regulation treats a valuation as unreasonable if it was "calculated with respect to a date that is more than 12 months earlier" or ignores information material to the company's value (Treas. Reg. §1.409A-1(b)(5)(iv)(B)(1), govinfo, 2025).
Events that usually call for a fresh 409A, according to Pulley (2026):
- a new funding round
- a major acquisition, by you or of you
- a significant new customer that changes your revenue outlook
- a change in the C-suite
- a pivot, a major new product line or a new stock plan
A common trap: you close a round, then grant options to new hires a few weeks later using the old 409A. The round is a material event, so that old price may no longer hold. Ask your provider for a new report as soon as the round closes.
How Much Does a 409A Valuation Cost?
A 409A valuation costs from about $500 for a pre-seed company to $15,000 or more for a late-stage one. Carta puts a standalone 409A at "$1,000 to over $10,000" with a typical turnaround of one to three weeks (Carta, 2026). Price depends on stage, cap table complexity and how fast you need the report.
| Stage | Typical cost | Source |
|---|---|---|
| Pre-seed and seed | $500 to $1,500 | Pulley, 2026 |
| Series A to B | $2,000 to $5,000 | Pulley, 2026 |
| Series C and later | $5,000 to $15,000+ | Pulley, 2026 |
| Any stage, standalone report | $1,000 to $10,000+ | Carta, 2026 |
Many cap table tools bundle the 409A into a yearly plan. Eqvista, for example, lists annual plans with unlimited 409As starting at $990 for pre-revenue companies and $1,990 at seed (Eqvista, 2026). Carta includes the 409A in some paid plans rather than selling it at a public standalone price (same source). Compare the total yearly cost, not just one report, because a funding round can force a second valuation in the same year.
Turnaround matters too. Pulley quotes three to five business days for a draft, while Eqvista lists five to ten business days as standard. If you have an offer letter waiting on a strike price, ask for the timeline before you sign.
What Is 409A Safe Harbor?
409A safe harbor means the IRS presumes your valuation is reasonable, so the burden shifts to the IRS to prove it was "grossly unreasonable". The regulation gives three ways to get that presumption: an independent appraisal, a binding formula price, or a written valuation for an illiquid startup (Treas. Reg. §1.409A-1(b)(5)(iv)(B)(2), govinfo, 2025).
| Safe harbor method | Who uses it | Key conditions |
|---|---|---|
| Independent appraisal | Almost every venture-backed startup | Done by a qualified independent appraiser, as of a date no more than 12 months before the grant |
| Binding formula | Rare in startups | The same formula must apply to every transfer back to the company or to 10%+ holders, used consistently |
| Illiquid startup | Very early companies | Company under 10 years old, no change of control expected within 90 days and no IPO within 180 days, written report by someone with significant knowledge and experience, generally 5+ years |
The illiquid startup route lets a qualified insider write the report, which is why some very early founders ask whether they can do their own 409A. In theory, yes. In practice the person needs real valuation experience, and an investor or acquirer will look harder at a self-made report. Most startups use an independent provider from the first grant.
How Is a 409A Valuation Calculated?
A 409A appraiser first values the whole company, then allocates that value across share classes to find the price of one common share. Carta lists the main approaches: the option pricing model "backsolve" after a priced round, a market approach based on comparable companies, an income approach (discounted cash flow), and an asset approach for very early companies (Carta, 2026).
The last step is a discount for lack of marketability (DLOM). Common stock in a private company cannot be sold easily, so appraisers cut its value. Carta says this discount is typically 25% to 35%. Together with the rights preferred investors get, it is the main reason your 409A price sits below the price per share of your last round.
What you will be asked to provide:
- your current cap table and the terms of every share class
- financial statements and a forecast
- details of your last round: price per share, SAFEs or notes and their caps (see SAFE vs convertible note)
- any offers, letters of intent or material events since the last valuation
409A Price vs Preferred Price vs Post-Money Valuation
These three numbers answer different questions, and founders mix them up all the time. The 409A prices one common share for tax purposes. The preferred price is what investors paid per share in the round. The post-money valuation is the preferred price multiplied by all fully diluted shares after the round.
| 409A price (common) | Preferred price | Post-money valuation | |
|---|---|---|---|
| What it measures | Fair market value of one common share | Price per share investors paid | Headline value of the whole company after the round |
| Who sets it | Independent appraiser | Negotiation between founders and investors | Follows from the preferred price |
| Used for | Option strike prices, tax compliance | The round itself, investor rights | Press, dilution math, next round |
| How often it changes | At least every 12 months or after a material event | Each priced round | Each priced round |
| Usual relationship | Lower than the preferred price | Higher than the 409A price | Grows with the preferred price |
To see how each round changes ownership, run your numbers in the startup dilution calculator or read our guide to equity dilution. For the terms behind preferred stock, see how to read a VC term sheet.
What Happens If You Don't Get a 409A Valuation?
If options are granted below fair market value and fail 409A, the option holder can owe income tax on the deferred amount when it vests, a 20% additional federal tax, and interest at the underpayment rate plus one percentage point (IRC §409A(a)(1)(B), Cornell LII). The penalty lands on employees, not on the company.
California adds its own penalty. Since 2013 the state charges an extra 5% on income that fails 409A, down from 20% before (Cooley, 2013). For a startup the damage goes beyond tax: auditors flag the grants, acquirers ask for fixes or escrow during due diligence, and you may have to reprice options, which is awkward with the people you hired.
409A vs 83(b): What Is the Difference?
A 409A valuation and an 83(b) election solve different problems. The 409A is a company document that sets the fair market value of common stock. An 83(b) election is a choice an individual files with the IRS to be taxed on restricted stock when it is granted rather than when it vests. It must be filed no later than 30 days after the stock is transferred (IRS Form 15620, 2025).
They meet when founders or early employees buy restricted stock: the 409A price (or the price paid) tells you how much income, if any, the 83(b) election reports. If you are setting up founder shares, our guide on how to split equity with your cofounder covers vesting and why the 83(b) deadline matters.
How to Get Your First 409A Valuation, Step by Step
Getting a 409A takes one to three weeks from kickoff to signed report for most startups. Here is the sequence.
Step 1: Pick a provider
What you get: a provider and a quote. What to do: compare two or three providers (your cap table tool, a standalone valuation firm) on price, turnaround and whether they audit-defend their reports. How you know you're done: you have a signed engagement and a delivery date.
Step 2: Clean up your cap table
What you get: accurate inputs. What to do: make sure every share, SAFE, note and existing option is recorded with the right terms. How you know you're done: the fully diluted share count matches your legal documents.
Step 3: Send financials and context
What you get: a complete data room for the appraiser. What to do: share statements, a forecast, details of your last round and any material events. How you know you're done: the provider confirms it has everything and starts the analysis.
Step 4: Review the draft
What you get: a draft price per common share and the method behind it. What to do: check facts (share counts, round terms, dates), not the conclusion you would like. How you know you're done: factual errors are fixed and the report is final.
Step 5: Approve and grant
What you get: a strike price you can use. What to do: have the board adopt the 409A and approve option grants at or above that price. How you know you're done: board consent is signed and grants are recorded in your cap table. Set a reminder 11 months out, or for the day your next round closes.
Common 409A Mistakes
- Granting before the report is final. Wait for the signed valuation and board approval.
- Reusing an old 409A after a round. A new round is a material event. Get a new report.
- Letting the 12 months lapse. Grants made with an expired 409A lose safe harbor.
- Treating the 409A as your company's valuation. It prices common stock for tax purposes. It is not what investors will pay.
- Hiding information from the appraiser. An acquisition offer you left out can make the valuation unreasonable under the regulation.
Where Startupage Fits
A 409A is a compliance step, but it usually shows up at the moment you are hiring and raising. That is when visibility matters. On Startupage you can create a free founder profile with verified revenue, publish open roles and fundraising rounds as opportunities, and reach investors and talent in the same place. If you are about to hire your first people, read how to hire your first startup employee next.
Frequently Asked Questions
How much does a 409A valuation cost?
A 409A valuation usually costs $500 to $1,500 at pre-seed and seed, $2,000 to $5,000 at Series A and B, and $5,000 to $15,000 or more later (Pulley, 2026). Carta quotes $1,000 to over $10,000 for a standalone report (Carta, 2026). Many cap table tools bundle 409As into an annual plan.
How often do you need a 409A valuation?
You need a new 409A at least every 12 months, and sooner after a material event such as a funding round, an acquisition offer or a pivot. The Treasury regulation treats a valuation older than 12 months, or one that ignores material information, as unreasonable (Treas. Reg. §1.409A-1, 2025).
Is a 409A valuation required for a pre-seed startup?
A 409A is needed before you grant stock options, whatever your stage. If a pre-seed startup has not granted options yet, it does not need one. Most startups get their first 409A just before the first option grant to an employee or advisor (Carta, 2026).
Can I do my own 409A valuation?
You can, but only the illiquid startup safe harbor allows a non-independent report, and the author needs significant valuation experience, generally five years or more (Treas. Reg. §1.409A-1, 2025). Most founders use an independent appraiser, because investors, auditors and acquirers trust that report more.
Why is my 409A lower than what investors paid?
Investors buy preferred stock with extra rights, such as a liquidation preference, while the 409A prices common stock. Appraisers also apply a discount for lack of marketability, typically 25% to 35% according to Carta (2026), because private common shares are hard to sell.
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