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Part of our Microsoft licensing services practice. Independent advisory across the full Microsoft estate.
Microsoft audit defense boardroom
Advisory / Microsoft Audit Defense

Microsoft audit defense, fixed fee and 100 percent buyer side

Redress Compliance provides Microsoft audit defense for enterprises facing a SAM engagement, a self assessment, a formal audit or an SPLA review, led by an ex Microsoft practice lead with no reseller ties. We reconcile your position before anything is disclosed and challenge the claim line by line. The fee is fixed and agreed up front.

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$2B+Under Advisory
500+Enterprise Clients
Fixed fee, all inclusive. Audit defense is quoted on scope and agreed before we start. No hourly billing, and every dollar taken off the claim stays with you.
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How this engagement works1:53

What audit defense covers, and what it costs

Two minutes: why a licensing review is an audit by another name, how entitlements and deployment are reconstructed before anything is conceded, and why the fee is fixed while the claim is not.

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The presenters in this briefing are AI generated avatars. The service, the commercial terms, and the guidance are real, produced by Redress Compliance analysts from our client engagements.

Watch the briefingResearch briefing · 4:03

Running the Microsoft EA Negotiation: Sequence, Counters, and the Close

Scope first, always. The one sheet counter to the Multiple Equivalent Offers, pricing Microsoft's asks as sellable gives, business desk escalation on evidence toward June 30, and a close that is a document, not a meeting.

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500+ Enterprise Clients Industry Recognized $2B+ Under Advisory 11 Vendor Practices 100% Independent
What we do

What does Microsoft audit defense cover?

Microsoft audit defense covers every way Microsoft checks your compliance: a partner led SAM engagement, a self assessment, a formal audit under the verification clause, and SPLA reviews for service providers. We take control of scope and data, build your own license position, and settle the claim on evidence.

Scenario 01
SAM engagement invitation
Around 1 in 3 reviews we defend open as a free SAM engagement proposed by the account team. No audit clause is invoked, so you can decline it, scope it, or convert it into a review you run.
Scenario 02
Formal audit notice
A letter under the verification clause, with fieldwork usually run by a third party firm. You owe cooperation, but only inside the bounds the clause draws, not unlimited access.
Scenario 03
SPLA review or self assessment
A service provider SPLA review or a vendor led self assessment. The data you submit sets the size of the claim, so reconcile before you report. See our Microsoft SPLA audit defense.

Reviews cluster around four signals: a renewal inside twelve months, a merger or acquisition, a cloud migration, and a flat spend curve. Score your estate against all four; two or more and a review is likely.

Who leads

Who defends your Microsoft audit?

Ethan Mullins, our Microsoft Practice Lead and a former Microsoft employee, leads the defense. Co Founder Morten Andersen, who advises on license audit defense and negotiation, joins complex and multi vendor cases.

Microsoft Practice Lead

Ethan Mullins

Background
Ex Microsoft.
Leads
Our Microsoft practice: Enterprise Agreement renewals, M365, Azure commitment optimization, Copilot economics, and the 2026 price increase response work.
Meet the management team →
Morten Andersen, Co Founder of Redress Compliance Co Founder

Morten Andersen

Background
Ex IBM and ex Oracle. Buyer side advisor since founding Redress Compliance in 2018.
Advises on
License audit defense and negotiation. Runs the Vendor Shield subscription program.
Read Morten Andersen’s profile →
How it works

How does a Microsoft audit defense engagement run, step by step?

It follows one order: acknowledge, scope, reconcile, challenge, negotiate, close out and prevent. Skip a step and you pay for it two steps later.

Phase 01
Acknowledge and scope
A written acknowledgment that concedes nothing, then entities, products, period, data and tooling fixed in writing. The clause commonly sets a 30 to 60 day response window; we typically negotiate 45 days.
Phase 02
Reconcile
Your own effective license position from HR records, asset inventory, M365 telemetry and Azure billing, built before any data crosses to Microsoft or its auditor.
Phase 03
Challenge and negotiate
The draft claim taken apart line by line against your entitlements. Figure, SKUs, back period and forward terms negotiated as one package, often folded into the renewal.
Phase 04
Close out and prevent
The settled position documented with the exact SKUs applied and a written release. Quarterly reconciliation set up so the next review starts clean.

A single audit cycle typically runs eight to fourteen weeks, and work starts the same week the scope is signed. Procurement and licensing should own the response, with IT supplying deployment data rather than drafting the reply.

Deliverables

What do you receive at the close of a Microsoft audit?

Six documents that carry the defense and outlast it. Each one is yours to keep for the next review.

01
Audit response file
The communications protocol with one named owner, document hold instructions, and a register of every Microsoft data request and reply.
02
Independent deployment baseline
Your own measurement from HR records, asset inventory, M365 telemetry and Azure billing, built before any data crosses to Microsoft.
03
Findings challenge memo
A written challenge to SQL Server core counts, Windows Server virtualization, qualified user counts, SPLA reporting and M365 assignments, with documentary support.
04
Settlement counter position
Your settlement model, walk away number, and the staged concession path, with the cash route priced against the commitment route.
05
Side letter and release
A signed instrument keeping audit findings out of renewal pricing and any successor Microsoft agreement, plus the written release.
06
Executive briefing deck
A CFO and audit committee summary of claim posture, savings achieved, residual risk, and the recommended stance going forward.
Client results

What have Microsoft audit defense clients achieved?

Three published outcomes, each on its own case study page, and the patterns from our Microsoft audit file. The numbers below are the ones those pages state.

Case study
$42M exposure settled at $6M
A tier one financial services group received Oracle, Microsoft and IBM audit notices in one quarter, with $42 million of combined initial exposure. The coordinated defense settled at $6 million with renewal leverage intact.
Case study
25% saved, audit clauses rewritten
A top three Brazilian bank closed its EA renewal 25 percent below Microsoft’s number and rewrote its audit protection clauses end to end.
Case study
True up reconciled before submission
An East Coast bank facing a true up far above forecast removed leaver, duplicate and idle seats before reporting. The reported true up came in materially below the first forecast.
More
281 published case studies
Audit, renewal and optimization outcomes across all eleven vendor practices, each with its own page.
28%
Median cut from the
opening claim
1 in 3
Reviews opened as
a SAM invitation
30–50%
Of disputed totals from
cores and idle seats
25–45%
Deeper cut when procurement
owns the response
100%
Buyer side
independent

Source: Redress Compliance advisory engagement file, roughly 60 to 80 Microsoft audit and SAM defenses, 2024 to 2025. The median applies to clients who reconciled before disclosing.

2026 changes

What changed in Microsoft audits and compliance in 2025 and 2026?

Reviews now start softer, the Microsoft Customer Agreement carries its own verification terms, and higher list prices raise the cost of any shortfall.

Change 01
SAM invitations first
Around 1 in 3 reviews now open as a free SAM engagement from the account team rather than an audit letter. Treat it as a scoping negotiation, not an obligation.
Change 02
MCA verification terms
Enrollments below about 2,400 licenses are being moved to CSP or MCA E. Under the MCA, Microsoft may verify on 30 days’ notice, and unlicensed use of 5 percent or more adds verification costs and licenses at 125 percent of your current price.
Change 03
Higher list prices
From November 1, 2025, Online Services carry one price across Levels A to D, and on July 1, 2026 E3 rose to $39 and E5 to $60 per user per month. Licenses bought to close a finding now cost more than a year ago.

For the full method, read our neutral Microsoft license audit playbook for CIOs, from the letter to the settlement.

Compare

How does independent audit defense compare with a Big Four firm, a Microsoft partner or your own team?

The difference is who pays the advisor and where the advisor’s findings go. Each option below is compared on independence, conflicts of interest, Microsoft experience and fees.

Option 01
Redress Compliance
Independence: no Microsoft partner status, reseller agreement or referral fee. Conflicts: none tied to the settlement. Experience: Microsoft practice led by an ex Microsoft lead. Fees: fixed, agreed up front.
Option 02
Big Four consultancy
Independence: separate from Microsoft sales, though some firms hold alliance ties. Conflicts: confirm the firm has no audit or implementation mandate from Microsoft. Experience: broad bench; licensing depth varies. Fees: usually time and materials.
Option 03
Microsoft partner running a SAM engagement
Independence: appointed and paid through Microsoft. Conflicts: the partner’s output, usually an effective license position, goes to Microsoft. Experience: deep tooling and product knowledge. Fees: offered at no charge to you.
Option 04
In house team
Independence: full. Conflicts: none. Experience: knows the estate, rarely sees how other audits settled. Fees: staff time; in our file, responses owned by procurement and licensing cut the claim 25 to 45 percent more than those left to IT alone.
Fees

How much does Microsoft audit defense cost?

Microsoft audit defense is a fixed fee, scoped to the work and agreed before we start. We never bill by the hour, and every dollar taken off the claim stays with you.

If the settlement folds into a renewal negotiation, that negotiation can run on our success fee instead: 25 percent of what we save you. You keep 75 percent, and if we save nothing you pay nothing.

Option A

Fixed Fee Engagement

Scope
One Microsoft audit cycle, from SAM invitation or formal notice through settlement and release.
Timeline
Eight to fourteen weeks typical. Same week start once scope is signed.
Pricing
Fixed fee. Quoted on scope. No hourly billing.
Best for
An active SAM engagement, SPLA review or formal audit notice with a defined response window.
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Option B

Vendor Shield

Scope
Always on Microsoft advisory: estate monitoring, audit posture and standing negotiation counsel.
Timeline
12 to 24 month subscription. Renews annually.
Pricing
Annual subscription. Quoted on estate size.
Best for
Estates that closed an audit and never want to reopen one reactively.
Vendor Shield detail →
Frequently asked questions

Microsoft audit defense: what do buyers ask?

How much does Microsoft audit defense cost?

It is a fixed fee, scoped to your audit and agreed before we start, with no hourly billing. If the settlement folds into a renewal negotiation, that negotiation can run on a success fee of 25 percent of what we save you instead.

Do we have to accept a Microsoft SAM engagement?

No. A SAM engagement invokes no audit clause, so you can decline it, negotiate its scope, or convert it into an internal review you run and own. A formal audit is different: you owe cooperation, but only within the bounds of the verification clause.

How long does a Microsoft audit defense take?

A single audit cycle typically runs eight to fourteen weeks from engagement to settlement, and work starts the same week the scope is signed. The audit clause commonly sets a 30 to 60 day response window, and we typically negotiate it to 45 days.

What will Microsoft or its auditor ask for first?

A scope, questionnaires and inventory scripts, followed by a data request. Acknowledge in writing, agree the scope, measurement date and data method before sending anything, and run the scripts yourself.

How much can a Microsoft audit claim come down?

Across the 60 to 80 Microsoft audit and SAM defenses we ran in 2024 and 2025, clients who reconciled before disclosing cut the final claim by a median near 28 percent. Server cores and idle Microsoft 365 seats made up 30 to 50 percent of every disputed total.

Are you independent of Microsoft and its audit partners?

Yes. We hold no Microsoft partner status and no reseller agreement, and we take no referral fees. The auditor and the reseller sit on the vendor side; we sit only on yours.

What do you need from us to start?

The audit letter or SAM invitation, your agreements and enrollments, and access to the people who hold HR, asset inventory, M365 and Azure data. We reply within one business day with scope and a fixed fee.

When should we call you?

The day the letter or SAM invitation arrives, before anyone replies or runs a script. The first response sets the tone and the data scope for everything that follows.

Planning a renewal as well? See our Microsoft negotiation services and our independent Microsoft licensing experts.

“
An audit is a commercial negotiation with a compliance cover sheet. IT should be supplying deployment data, not drafting the reply.
From our Microsoft audit defense playbook
Redress Compliance
Buyer side advisory boardroom

A SAM letter is not a verdict

A SAM engagement in the inbox, an SPLA audit on the desk, or a formal notice in the email. We start where you are and settle on evidence, not on Microsoft’s first number.

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Negotiation intelligence, monthly

One letter a month. Negotiation moves, audit signals, and price book shifts.