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Sales Tax Audit Defense

You don’t have to face the auditor alone. At any stage.

Just received a notice? We’ll take it from here. Already three months into an audit that’s gone sideways? We’ll step in mid-stream. We represent you directly, or advise you from behind if you’d rather keep the relationship in-house.

The goal is the same either way: walk away with the smallest defensible liability.

Where we can step in
Notice of audit received
Nothing has been produced yet
Best time
Records request outstanding
Scope still negotiable
Strong position
Fieldwork underway
Sampling method being applied
Still winnable
Preliminary assessment issued
Numbers on the table, not final
Room to move
Final assessment, appeal open
Protest deadline running
Act now
Appeal window closed
Assessment is final and collectible
Too late
Every stage above the last one is one we’ve entered and improved. The last one we can’t.
Average assessment reduction
58%
58%
average reduction of the initial assessment, across every case we’ve defended.
40+
state audits successfully defended in the past three years.
4.5
months
average time to resolution, against an industry average of nine months or more.
$3.8M+
in assessment dollars reduced or waived for clients.
Why self-defense goes badly

An audit is not a request for information. It’s a negotiation you’ve been invited to lose.

Auditors are professional, generally fair, and doing a job with a target. They are also expert in a process you’ll go through once. Cooperating fully and answering everything asked is not the same as defending yourself.

The sample decides the number

Most audits test a sample period and extrapolate across years. An unrepresentative month — a big one-off sale, a bad quarter — becomes the basis for the entire assessment. Challenging the sample is often worth more than challenging any single transaction.

Scope expands quietly

An audit opened on one tax year, or one tax type, can widen if what you produce invites it. Volunteering records outside the request is the most common unforced error we see.

Missing certificates become taxable sales

An exempt sale you can’t document is a taxable sale. Certificates can often still be collected during the audit — but only if someone starts immediately.

Use tax is the other half

Most businesses prepare for questions about tax they should have collected. A large share of assessments are actually use tax on what the business bought — equipment, software, supplies — where no vendor charged tax and nobody self-assessed it.

Deadlines are not suggestions

A protest window is typically 30 to 90 days from the assessment and it does not pause while you look for help. Once it lapses, a wrong number becomes a final, collectible one.

Offsets nobody claims

If you overpaid tax in the same period — and businesses routinely do — that can offset the assessment. Auditors are not required to look for it. We do.

Two ways to bring us in

Full representation, or a hand on your shoulder.

Some clients want us to take the whole thing. Others have a good relationship with the auditor and want to keep it — they just need to know which battles are worth fighting. Both work.

Full representation

We become your point of contact

We file the power of attorney and the auditor deals with us. Your team stops fielding questions and goes back to work.

— We manage all correspondence and every meeting
— We negotiate scope, sampling method, and periods
— We assemble and review every document before it leaves
— We prepare the protest and carry the appeal if needed
Consultative support

You stay in front, we sit behind

You keep the relationship with the auditor. We tell you what to produce, what to push back on, and what a reasonable outcome looks like.

— We review requests before you answer them
— We tell you where the assessment is soft
— We prep you for each meeting
— You can escalate us to full representation at any point
How a defense runs

Reduce the number, then reduce it again.

Audit defense isn’t one argument. It’s a sequence of them — scope, method, documentation, statute, offsets, penalty — and each one moves the number. An assessment that starts at seven figures rarely finishes there when someone works through all six.

We’ve reduced initial assessments by an average of 58%, and we resolve in about four and a half months against an industry average of nine or more. Faster matters: interest accrues the whole time.

Get help with my audit
Scoped per engagement
The sequence
01
Contain the scope
Which years, which tax types, which entities. Narrowing this at the start is the cheapest win available.
02
Fight the sampling method
If the sample period isn’t representative, the extrapolation is wrong by a multiple. This is where the largest single reductions come from.
03
Rebuild the documentation
Missing exemption certificates can often still be collected. Every one recovered removes a taxable sale from the schedule.
04
Re-argue the taxability
Auditors apply the state’s default position. Where a statute, regulation, or ruling supports a different treatment, we cite it and make them address it.
05
Claim the offsets
Tax you overpaid in the same period can reduce what you owe. Nobody on the other side is going to raise it for you.
06
Abate the penalty
Penalty is often abatable on reasonable-cause grounds, separately from the tax. It’s a distinct argument and it’s frequently left unmade.
What a defense is worth

Move the assessment, then stop the clock.

Set the number the state has put in front of you. The left column is what happens if you accept it and let the process run long. The right applies our average reduction and our average resolution time.

Illustrative. Applies our historical average 58% reduction and 4.5-month resolution against a 9-month industry average, with interest at 8% annually on the outstanding balance. Every audit turns on its own facts and no outcome is guaranteed.

$450,000
9 months
Estimated difference
$282,330 less
Accept and wait it out
$477,000
Assessment$450,000
Interest accrued$27,000
Time9 months
Defended
$194,670
Assessment after reduction$189,000
Interest accrued$5,670
Time4.5 months
Sales Tax People accountants reviewing audit documents together.
Who represents you

The auditor talks to us.

An audit is a negotiation conducted in writing by people who do it constantly against people who do it once. We put someone on your side of that table who has done it hundreds of times.

We work autonomously and keep the disruption to your team down to the documents we genuinely need.

1992
Founded
13,000+
Jurisdictions worked in
42,000+
Projects completed

Questions we hear a lot

Is it too late if I’m already halfway through?

Almost certainly not. We step into audits at every stage — fieldwork, preliminary assessment, protest. The only point we can’t help is after the appeal window has closed and the assessment is final.

Will bringing in a firm make the auditor more aggressive?

No. Auditors work with representatives constantly and it usually makes the audit faster — requests get answered properly the first time. If you’d rather they didn’t know, take the consultative route and we’ll stay behind you.

Our CPA is handling it. Isn’t that enough?

Many excellent CPAs see a handful of sales tax audits in a career. Sampling methodology, home-rule jurisdictions, and multistate taxability are their own discipline. We’re often brought in alongside a client’s CPA rather than instead of them.

What does it cost?

Scoped per engagement, based on the size of the assessment and where the audit stands. On a first call we’ll tell you honestly whether the likely reduction justifies the fee — sometimes it doesn’t, and we’ll say so.

Send us the notice. We’ll tell you where you stand.

A first call costs nothing and takes twenty minutes. If there’s a deadline running, that’s the most useful twenty minutes available to you today.