Your 409A valuation provider will tell you the number is independent and non-negotiable. That part is true. What they won't volunteer is that the price you pay, the timeline you're given, and the inputs feeding the model are all things you can push on before you sign an engagement letter, and sometimes after the draft report lands too.
I found this out on my second 409A, when a provider quoted six weeks and a rush fee that would have added nearly 40 percent to the bill for the two-week turnaround we actually needed to close a hire. Here's what's genuinely up for discussion, and the language that works.
The one thing you genuinely cannot negotiate
The fair market value conclusion itself is not negotiable, and trying to talk it down is the fastest way to blow up the protection you're paying for. Once you get an independent appraisal under an IRS-approved method, safe harbor shifts the burden of proof onto the IRS. They have to show the valuation method or its application was grossly unreasonable, a genuinely high bar.
That protection only holds if the appraiser is actually independent. Any evidence that you pressured them into a lower number, in an email thread, a call recap, a Slack message forwarded to the wrong person, is exactly what strips safe harbor away if the IRS ever looks. Don't ask for a lower number. Ask better questions about how they got to this one.
What you can actually push back on
Four things are fair game, and providers rarely volunteer that they'll move on any of them:
- Scope. What's actually included at the quoted price: a full new report versus an annual refresh, how many grant classes and share types it covers, whether it's priced for a single option grant date or open-ended.
- Timeline and rush fees. Expedited turnarounds typically add 25 to 100 percent to the base price, or a flat $500 to $3,000. That premium is almost entirely avoidable by requesting the report two to three weeks before you actually need it.
- The inputs, not the output. Cap table completeness, the comparable company set, and the stated valuation date are all factual and correctable. Getting these right before the report is drafted is the real lever, not disputing the conclusion after.
- Multi-engagement pricing. If you already know you're raising this year or burning fast enough to need a refresh every two quarters, ask for a package rate across two or three reports up front instead of paying rush pricing each time.
The script: exact language for each conversation
At engagement, on price and scope: "Can you break down what's included at this price versus what would trigger an additional fee, and what a non-rush timeline would cost instead?"
Early, to avoid rush pricing entirely: "We'll need this report by [date]. Can we start the engagement now so we land inside your standard turnaround instead of a rush window?"
After a draft, on a factual input: "Section [X] lists our last preferred round at $[Y], but the actual closing price was $[Z] per the signed docs. Can you confirm this is reflected in the model and send an updated draft?"
When a factual dispute is legitimate, and when it isn't
Legitimate disputes are about inputs, not outcomes: an incorrect option pool size, a missing liquidation preference layer, a stale comparable set, or a wrong valuation date. Cap table errors specifically are the single leading cause of 409A rework, because a wrong pool size or preference stack changes how enterprise value flows down to common.
"The number feels too high" is not a legitimate dispute, and providers can tell the difference immediately. If your discount for lack of marketability looks off, ask what DLOM they used and why, typical seed-stage DLOM runs 28 to 38 percent, versus 15 to 20 percent for a later-stage company. That's a question about methodology, not a request for a favor.
The 30-day move
Before your next 409A comes due, get written quotes from two providers that itemize scope and rush pricing separately, not bundled. Then send your cap table for a completeness check before you're inside a rush window, not after. That single step is what would have saved us the 40 percent premium on our second report.
Frequently asked questions
Can I negotiate my 409A valuation number?
No. The fair market value conclusion is the independent appraiser's determination, and pushing for a lower number puts your IRS safe harbor protection at risk. You can only correct factual inputs the number is based on.
How much do rush 409A valuations cost?
Expect a 25 to 100 percent premium over the base fee, or a flat add-on of $500 to $3,000, for turnarounds under two weeks. Requesting the report early avoids this entirely.
What DLOM should I expect at seed stage?
Typical discounts for lack of marketability run 28 to 38 percent at seed stage, narrowing to 12 to 20 percent by Series C and later as liquidity prospects improve.
Can I dispute a 409A report after it's already delivered?
Yes, if the dispute is about a factual input, like a cap table error or wrong valuation date. Providers will typically issue a corrected draft at no extra charge when the error is theirs.
The founders who get the best terms from their 409A provider aren't the ones who argue about the number. They're the ones who show up with a clean cap table, a realistic timeline, and questions that make it obvious they'll catch an error if one slips through.