A Colorado voluntary disclosure agreement (VDA) is an arrangement with the Colorado Department of Revenue (CDOR) that lets an eligible business disclose past tax obligations, register, file required returns, and pay the agreed amount under terms set by the Department. For state sales and use tax, CDOR says a typical agreement uses a three-year look-back; the Department may waive older liabilities and usually waives penalties, but interest on tax due for the look-back period is not waived. These terms are not automatic, and collected-but-unremitted tax can be treated differently.
Colorado requires special care because it is the hardest home-rule state in the country: dozens of cities administer and audit their own local sales taxes separately from the state. A state VDA does not by itself settle obligations with every self-collecting city. Before applying, identify where your sales create obligations and confirm which state and local jurisdictions are included. State filings and payments may use Revenue Online or SUTS, while some home-rule cities require direct contact and separate remittance.
What is a Colorado voluntary disclosure agreement?
A Colorado VDA is a negotiated agreement for a taxpayer to disclose previously unreported tax obligations to the Colorado Department of Revenue. The Department reviews the business’s facts and proposed liabilities, then may offer a settlement agreement covering specified taxes and periods. The agreement sets the conditions for registration, filing returns, and paying the amount due.
A VDA is not a general amnesty or a promise that every liability will be forgiven. Its protections depend on the written agreement and the taxpayer meeting its terms. The Department’s program materials describe a typical sales and use tax look-back and possible relief for older liabilities and penalties, while interest on tax due for the look-back period is not waived.
Who is eligible for Colorado’s VDA program?
Eligibility depends on the business’s circumstances and the Department’s review. The program is intended for taxpayers coming forward voluntarily to address tax obligations that have not been reported or paid. CDOR reviews the facts disclosed, including the nature of the business’s activities, the potential liability, and the explanation for not filing.
Do not assume that a business qualifies simply because it has not registered in Colorado. Prior contact from the Department, an existing audit or investigation, prior filings, or other facts may affect whether the disclosure is considered voluntary or what terms are offered. The Department’s current VDA materials and agreement determine the applicable requirements; confirm eligibility before identifying the business.
Can you apply anonymously for a Colorado tax VDA?
Yes. CDOR’s VDA guide says a request may be submitted anonymously. A business can have a representative make the initial disclosure without naming the taxpayer, allowing the Department to consider the disclosed facts before the business reveals its identity.
Anonymity is not a way to omit material facts or avoid the agreement’s requirements. The request must provide the information the Department needs to evaluate the proposed disclosure. If the Department offers terms and the business chooses to proceed, it will need to identify itself and complete the required registration, returns, and payment steps under the agreement.
Which Colorado taxes and jurisdictions are covered?
The Department’s VDA program covers state-administered tax liabilities that CDOR agrees to include in the written settlement. Its published guidance specifically describes sales and use tax and income tax look-back periods. Do not assume that every tax type, tax period, or liability is covered: identify the taxes at issue in the request and confirm the scope of the proposed agreement with CDOR.
Colorado’s local sales tax structure is a separate practical issue. CDOR collects state tax and certain local taxes, while self-collecting home-rule cities administer their own local sales and use taxes and may set their own rules. A state agreement should not be treated as resolving a city liability unless that city is expressly included and has agreed to the arrangement. Check each relevant jurisdiction directly.
SUTS accepts returns and payments for state-collected jurisdictions and participating self-collecting home-rule jurisdictions. A nonparticipating self-collecting jurisdiction must be handled directly with that jurisdiction. Revenue Online is also used for state-collected sales tax administration; confirm the correct filing route for each account and jurisdiction.
How far back does a Colorado VDA reach?
For sales and use tax, CDOR states that it requires a three-year look-back period. For income tax, the Department states a four-year look-back. Its guide describes these as typical minimum periods and explains that the Department’s decision about a look-back, including its length, can depend on the company’s activities and the size of the potential past liability.
The Department says it will usually waive liabilities older than the applicable three- or four-year period when a taxpayer comes forward voluntarily. “Usually” is not a guarantee: the actual periods and any relief must be confirmed in the written agreement. If your business has multiple tax types or local home-rule exposure, ask how each is treated rather than assuming one period applies to every obligation.
Can a Colorado VDA reduce penalties or interest?
CDOR says it will usually waive penalty assessments for voluntary disclosures, subject to the facts and the agreement. The Department’s guide says penalties may depend on the certainty of the tax obligation, the size of the liability, and the explanation for the failure to file. Penalty may normally be assessed, sometimes at a lower rate, when tax was collected from customers but not remitted.
Interest on tax due for the look-back period is not waived under the Department’s published VDA guidance. Do not budget on the assumption that either penalties or interest will be eliminated. The written offer controls, and the Department’s sample agreement also makes relief conditional on the taxpayer complying with the agreement.
Identify your Colorado sales tax exposure before applying
Build a transaction-level picture before making a disclosure. Gather sales by destination and period, product or service descriptions, marketplace and direct-sale records, customer tax charged, returns and refunds, and any prior registrations or filings. Review where inventory, employees, contractors, or other business activity may create obligations, and distinguish tax collected from tax that may have been due but was not charged.
Map destinations to the relevant state-collected and self-collecting jurisdictions. Colorado’s Department of Revenue publishes the DR 1002 rates and jurisdiction information, and SUTS provides address-based rate lookup and a list of participating jurisdictions. Local taxability and filing requirements can differ, so verify the rules with each self-collecting city that may be involved. This review helps define the disclosure; it does not replace the Department’s eligibility decision.
How to apply for a Colorado voluntary disclosure agreement
Start with CDOR’s current Voluntary Disclosure Program page and guide. The Department’s process calls for a statement of representations and inducement, with the facts requested in its guide, and a statement of the tax liabilities the business wants to settle. The request may be submitted anonymously. Be complete and specific: the Department says vague or ambiguous information can hinder its assessment of the company’s liability and its ability to reach an agreement.
Submit the request using the current instructions on the Department’s VDA page. CDOR reviews the disclosure and, if it chooses to proceed, prepares a settlement agreement. Review the proposed tax types, periods, look-back, penalty treatment, payment terms, and any conditions before accepting. The Department’s guide says an offer must be accepted and returned within 60 days or it becomes void and must be renegotiated; check the current offer and instructions because the agreement governs your case.
After the agreement is in place, complete the required registration, file the returns for the agreed periods, and pay the amounts due as specified. For state-collected sales tax, use the filing route assigned to the account, such as Revenue Online or SUTS. SUTS can also handle participating self-collecting home-rule jurisdictions; contact nonparticipating cities directly. Keep copies of the agreement, returns, payment confirmations, and correspondence.
Register, file past-due returns, and pay what you owe
Registration is part of completing the disclosure, not a substitute for it. Follow the agreement’s instructions for obtaining the required Colorado account or license, then file the returns for the periods and tax types covered. Do not file or pay on the assumption that a state account automatically covers every home-rule city.
Use Revenue Online or SUTS as appropriate for state-collected obligations and participating jurisdictions. CDOR identifies SUTS as a filing and payment option for state, state-collected, and participating home-rule jurisdictions. For a self-collecting city that does not participate, contact the city for its registration, return, and payment process. Reconcile each payment to the correct jurisdiction and period, and retain proof of submission.
Get help managing your Colorado VDA from start to finish
Sales Tax Compliance USA is a done-for-you service staffed by people, not a software product. We can help organize sales and marketplace records, map potential state and local exposure, prepare the information needed for a disclosure, coordinate the application process, and manage registration, past-due filings, and payment steps within the agreed scope.
Not sure how this applies to your business? We handle US sales tax registration, filing and remittance for ecommerce sellers as a fully managed service, for one fee. Book a free consultation and we will review your own position with you.
Colorado’s home-rule structure makes jurisdiction-by-jurisdiction review especially important. We can help identify questions that need confirmation with CDOR or a self-collecting city and keep the work organized through resolution. The Department makes the eligibility and agreement decisions, and the exact position depends on your circumstances. Contact us to review your Colorado activity and determine what should be verified before you apply.
How Colorado’s state and local sales tax administration affects VDA follow-through
| Obligation or jurisdiction | Where administration and filing may occur | What to verify before filing |
|---|---|---|
| Colorado state sales and use tax | Colorado Department of Revenue; Revenue Online or SUTS | Confirm the account, tax periods, return requirements, and terms in the VDA agreement. |
| State-collected local jurisdictions | Colorado Department of Revenue; Revenue Online or SUTS | Use the applicable jurisdiction and location information; confirm the correct periods and allocation. |
| Participating self-collecting home-rule cities | City administers its tax; SUTS can accept filings and payments for participating jurisdictions | Confirm the city participates and that the VDA or separate arrangement covers the city liability. |
| Nonparticipating self-collecting home-rule cities | City administers its own tax; contact the city directly for filing and payment | Confirm registration, taxability, periods, and any city-specific disclosure terms directly with the jurisdiction. |
Frequently asked questions
What is a Colorado voluntary disclosure agreement?
It is a negotiated agreement with the Colorado Department of Revenue for an eligible taxpayer to disclose past tax obligations and, if the Department agrees, register, file returns, and pay under specified terms. The written agreement defines the taxes, periods, payment obligations, and any relief.
Who is eligible for Colorado’s voluntary disclosure program?
Eligibility depends on the business’s facts and the Department’s review; coming forward voluntarily is central to the program. Prior contact, an audit or investigation, prior filings, and the nature and size of the liability may affect eligibility or terms, so confirm your position with CDOR before proceeding.
Can you apply for a Colorado tax VDA anonymously?
Yes. CDOR’s guide says a request may be submitted anonymously, generally through a representative. The disclosure still needs enough specific information for the Department to evaluate it, and the business must identify itself if it proceeds to the agreement and required compliance steps.
What is the look-back period for a Colorado VDA?
CDOR states a three-year look-back for sales and use tax and a four-year look-back for income tax. The Department’s guide says the actual requirement can depend on the business’s activities and potential liability, so confirm the period in the proposed agreement.
Are penalties or interest waived under a Colorado VDA?
CDOR says penalties are usually waived, but the decision depends on the circumstances and the agreement; penalties may be assessed when tax collected from customers was not remitted. Interest on tax due for the look-back period is not waived under the Department’s published guidance.
What taxes are covered by Colorado’s voluntary disclosure program?
CDOR’s published guidance specifically addresses sales and use tax and income tax, but the agreement must identify the tax liabilities it covers. Confirm any other tax type with the Department rather than assuming it is included.
How do you apply for a Colorado voluntary disclosure agreement?
Review CDOR’s current VDA page and guide, prepare the required statement of representations and inducement and a statement of the liabilities to settle, and submit the request under the Department’s instructions. The request may be anonymous; if CDOR offers an agreement and you accept, follow its terms to register, file the required returns, and pay.
Does a Colorado state VDA cover home-rule city sales tax?
Not automatically. Self-collecting home-rule cities administer their own local taxes, and a state agreement should not be assumed to settle a city liability unless the city is expressly included and has agreed. Check each relevant city’s requirements and whether it participates in SUTS.
How we handle this for you
Because Colorado is a home-rule state, local jurisdictions there can administer and audit their own tax separately from the state, which is where doing this yourself usually stops being viable. We are a managed service: our team registers you with the Colorado Department of Revenue, prepares and files your returns, and keeps you compliant period after period. You get one point of contact and one invoice — you do not get another dashboard to learn.
See our sales tax compliance services, check where you have obligations with the nexus calculator, or talk to us about Colorado.
Official sources
- https://tax.colorado.gov/voluntary-disclosure-program
- https://tax.colorado.gov/sites/tax/files/documents/Guide_to_Colorado’s_Voluntary_Disclosure_Program.pdf
- https://tax.colorado.gov/sites/tax/files/documents/Sample_Voluntary_Disclosure_Agreement.pdf
- https://tax.colorado.gov/local-government-sales-tax
- https://tax.colorado.gov/SUTS-info
- https://tax.colorado.gov/SUTS-Jurisdictions
Reviewed by Paul le Roux, CA(SA). Sales Tax Compliance USA handles US sales tax registration, filing and remittance for cross-border and domestic ecommerce sellers as a fully managed service.
This page is general information for educational purposes and does not constitute legal or tax advice. Sales tax rules change and depend on your specific facts. Consult a qualified tax professional about your own position.