What Is a Sales Tax Voluntary Disclosure Agreement and When Does It Make Sense?
Sam's List Editorial | 2026-08-12
A sales tax voluntary disclosure agreement, usually shortened to VDA, is a formal deal between a business and a state tax authority. The business comes forward about sales tax it should have collected and remitted but did not, and in exchange the state limits how far back it will look and generally waives penalties. Most states allow the initial approach to be made anonymously through a representative, so the business can learn the terms before identifying itself.
That last part is why the program exists at all. Without it, coming forward means volunteering your name to a state that can assess an unlimited number of prior years.
The Problem a VDA Solves
Most states have a statute of limitations on assessing tax, commonly three or four years, but that clock generally only runs once a return has been filed. A business that never registered and never filed in a state typically has no statute of limitations running at all.
That is the exposure. A seller who crossed an economic nexus threshold in 2019 and never registered can in principle be assessed for every year since, plus penalties and interest on each one.
A VDA converts that open-ended exposure into a defined number. That is its entire value proposition.
What a Sales Tax Voluntary Disclosure Agreement Typically Gives You
Terms vary by state, but three elements are common.
A limited lookback period. Most states cap the lookback at three or four years from the date of the agreement, regardless of how far the actual exposure extends. Periods before the lookback window are generally forgiven.
Penalty waiver. Late filing and late payment penalties are typically waived in full. Interest is usually still due, and in some states interest is negotiable while in others it is fixed by statute.
Anonymity until terms are agreed. The initial submission is generally made by a representative on behalf of an unnamed taxpayer. The business is identified only once the state has agreed to the terms, which means you can walk away if the offer is not workable.
In return, the business registers, files returns for the lookback period, pays the tax and interest, and stays compliant going forward. Some agreements include a compliance period during which a lapse can void the deal.
What Disqualifies You
The programs are designed for taxpayers the state has not found yet. Common disqualifiers include:
- Prior contact from the state. A nexus questionnaire, an audit notice, or in many states any written inquiry generally closes the door. This is why timing matters: the day the letter arrives, the option is usually gone.
- Existing registration in that state. If you are already registered, you are not undisclosed, and the path is typically an amended return or an audit rather than a VDA.
- Tax you collected but did not remit. This is the important one. Most states will not forgive trust fund money. If you charged customers sales tax and kept it, states generally require full payment of all collected amounts with no lookback limitation, and this can carry personal liability for responsible parties.
Do not assume ineligibility without checking. Some states run separate programs for collected-but-unremitted amounts, and terms differ enough that a state-by-state review is the only reliable answer.
VDA Versus Amnesty Versus Registering Forward
Three different tools that get confused with each other:
| Option | What it covers | Typical terms | When it fits |
|---|---|---|---|
| Voluntary disclosure agreement | Past unregistered liability in one state | Limited lookback, penalties waived, interest usually due, anonymous until agreed | Material back exposure and no contact from the state |
| Tax amnesty program | Whatever the legislature defines, often broader | Fixed window announced by the state, often waives penalties and sometimes interest | A program happens to be open and you qualify |
| Register and file forward | Nothing in the past | You register today and begin collecting | Exposure is small, recent, or below materiality |
Amnesty programs are opportunistic. They open and close on legislative schedules, and you cannot plan around one that is not announced. When one is open, terms are sometimes better than a VDA, so it is worth checking before starting a disclosure.
Registering forward without addressing the past is the option most sellers default to, and it carries a specific risk: registering can prompt a state to ask when nexus began, which surfaces the exact history you did not disclose.
The Uncomfortable Part About the Money
Sales tax is normally paid by the customer and passed through by the seller. If you never collected it, you never held the customer's money, and the state still wants the tax.
That comes out of your margin. On a few hundred thousand dollars of untaxed sales in a state with a combined rate near 8 percent, the exposure is tens of thousands of dollars of real cash for goods you already delivered and were already paid for.
Two things reduce the number in practice. Some sales may have been exempt, made to resellers with valid exemption certificates, or made through a marketplace where facilitator laws shifted the collection duty to the platform. And a limited lookback under a VDA can cut the assessed periods substantially. Neither makes the number zero, and any estimate before an actual data review is a guess.
How the Process Usually Runs
The sequence is fairly consistent across states. You run a nexus study to determine where and when you crossed thresholds, quantify the exposure by state and period, prioritize states by materiality, then submit anonymous disclosure requests through a representative. The state responds with proposed terms, you accept or decline, and on acceptance you register, file the lookback returns, and pay.
Timelines commonly run a few months per state from submission to completed filing. Multi-state programs are usually staged rather than filed all at once, both to manage cash and to keep the workload survivable.
When a Voluntary Disclosure Agreement Is Not Worth It
A VDA has real costs: professional fees, the tax and interest itself, and ongoing filing obligations in a state you were not filing in before. It is often not worth it when the exposure is small, when the periods at issue are recent enough that the difference between the lookback and the full history is minimal, or when marketplace facilitator laws already covered most of your sales in that state.
The honest framing is that a VDA is a tool for capping a known problem, not a way to make it disappear. If you have material back exposure in states that have not contacted you, it is usually the least expensive path available. If a notice has already arrived, the conversation is a different one.
If you are trying to figure out which states you have exposure in, that is a nexus study, and it comes before any disclosure decision. You can compare firms with multi-state and eCommerce sales tax experience in the Sam's List accountant directory.
Frequently Asked Questions
How far back does a sales tax VDA look? Most states limit the lookback to three or four years from the agreement date, though the exact period is set by each state and a few differ. Periods before that window are generally forgiven, which is the main benefit compared to an unregistered taxpayer's otherwise open-ended exposure.
Can I stay anonymous during a voluntary disclosure? In most states, yes, during the initial phase. A representative submits the request on behalf of an unnamed taxpayer, the state proposes terms, and the business is identified only once terms are accepted. That structure lets you evaluate the offer before committing.
Does a VDA waive interest as well as penalties? Usually penalties are waived in full and interest is still owed. Some states will negotiate or reduce interest, and a small number waive it under specific programs, but the safe assumption when estimating cost is that penalties go away and interest does not.
What if the state already sent me a nexus questionnaire? In most states that contact disqualifies you from the voluntary disclosure program, because the program is meant for taxpayers the state has not identified. Options at that point typically include responding accurately, negotiating during an audit, or seeking penalty abatement, all of which are weaker than a VDA would have been.
About the author: Kimberly Green is the cofounder of Sam's List, where business owners and high earners find vetted CPAs, financial advisors, and fractional CFOs. She's met one-on-one with 400+ financial professionals and writes from the real data behind thousands of client-advisor matches. Ask her anything about finding an accountant - she's heard it all, including the questions people are afraid to ask.