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Iowa sales tax notices

Got a letter from the Iowa Department of Revenue (IDR)? Find it below to see what it means, why businesses usually receive it, and what to do next.

Sources checked

Tax authority

Iowa Department of Revenue (IDR) (opens in a new tab)

Official notice guide (opens in a new tab)

Disagree with a notice?

File a formal written appeal within 60 days of the date on the Notice of Assessment (or refund denial letter), even if you are still talking with the auditor. You can appeal through GovConnectIowa or on Form 76-500, Appeal of Department Action. If you miss the 60 days, you can pay and file a timely refund claim, or file an abatement request.

Deadline: 60 days from the date on the Notice of Assessment

Source: Iowa Department of Revenue (IDR) (opens in a new tab)

Failure to file

The authority has no return on record for a period it expects one, often because an account is open but filings stopped.

Failure to file

Estimated return billing

A bill IDR issues when a required Iowa return was not filed. You can appeal only the requirement to file, not the estimated amount.

Why you got it

  • A required Iowa tax return was not filed

What to do

  1. Check whether you were actually required to file for those periods. If not, appeal and explain why, with supporting documents
  2. If you were, file the actual return within three years from the date on the Notice of Assessment; a new Notice of Assessment based on your return may follow
  3. Pay the tax shown on your return, then request a penalty waiver (Form 78-629 or GovConnectIowa) if one of the listed reasons applies

Before you pay penalties: check whether you can ask for them to be waived, and what the state needs paid first. How to ask

Response window: File the return within three years from the date on the Notice of Assessment to dispute the amount

Source: Taxpayer Bill of Rights | Department of Revenue (opens in a new tab)

Assessment

A proposed or final determination of tax owed, sometimes estimated when returns were never filed.

Assessment

Notice of Assessment

The formal notice of additional tax, penalty and interest after an examination or audit. It starts the 60-day appeal period.

Why you got it

  • An examination by mail, interview or field audit found tax due

What to do

  1. Check the periods and figures against your records. If you disagree, file a formal appeal within 60 days of the notice date, even if you are still talking with the auditor
  2. If you agree with the tax, pay it through GovConnectIowa or set up a payment plan
  3. If a penalty was added and one of the listed waiver reasons applies, request a penalty waiver (Form 78-629 or GovConnectIowa) before paying the penalty
  4. If the appeal period passes, you may pay and file a timely refund claim or request abatement

Before you pay penalties: check whether you can ask for them to be waived, and what the state needs paid first. How to ask

Response window: 60 days from the date on the Notice of Assessment

Source: Taxpayer Bill of Rights | Department of Revenue (opens in a new tab)

Audit

A request for records or notice that the authority is examining your returns.

Audit

Examination letter (request for information)

IDR handles many examinations by mail and posts letters to your GovConnectIowa account. A letter may ask for more information, ask you to file a return, or show additional tax due. Field audits start with a pre-audit conference.

Why you got it

  • IDR is reviewing a return or a failure to file
  • Your business was selected for a field audit

What to do

  1. Gather the records the letter asks for and respond through GovConnectIowa using Respond to a Letter with the Letter ID
  2. If you disagree with changes, send a written explanation with supporting documents; you can request a personal interview
  3. File Form IA 2848 (14-101) if someone will represent you

Source: Taxpayer Bill of Rights | Department of Revenue (opens in a new tab)

Registration

Changes to your permit or account: required registration, filing-frequency changes, revocation, or closure.

Registration

Sales tax permit revocation

IDR may revoke an active sales tax permit for failing to remit tax collected or other sales tax violations. Once revoked, the business cannot legally make taxable sales in Iowa, and the permit cannot be reinstated.

Why you got it

  • Failure to file or pay sales tax
  • Failure to meet sales tax reporting requirements

What to do

  1. Contact IDR right away. Paying the outstanding debt, or setting up an approved payment plan and making the payments, can stop the revocation
  2. File any missing returns so the account is current
  3. If penalties are part of the debt and a listed waiver reason applies, request a penalty waiver on Form 78-629 or through GovConnectIowa
  4. If the permit is already revoked, resolve the issues and apply for a new permit

Source: Collections | Department of Revenue (opens in a new tab)

Collections

Enforcement on unpaid balances, such as liens, levies, warrants, or referral to a collection agency.

Collections

Financial institution levy / administrative wage levy

IDR's Central Collections Unit can take funds from a bank account, or have an employer withhold up to 25% of wages, to pay a delinquent balance.

Why you got it

  • A delinquent tax balance remains unpaid

What to do

  1. Pay the debt, or set up a payment plan and keep current on it and on new returns, to release the levy
  2. If you think the levy is wrong, follow the challenge instructions on the notice, for example through Respond to a Letter on GovConnectIowa
  3. If penalties are part of the balance and a listed waiver reason applies, you may still request a penalty waiver on Form 78-629

Before you pay penalties: check whether you can ask for them to be waived, and what the state needs paid first. How to ask

Source: Collections | Department of Revenue (opens in a new tab)

Collections

State tax lien

A lien IDR can file against your property for unpaid taxes. It lasts 10 years and can be extended.

Why you got it

  • Taxes remain unpaid

What to do

  1. Pay the debt, or set up a payment plan; the lien is released when the debt or plan is complete
  2. If penalties are part of the balance and a listed waiver reason applies, request a penalty waiver on Form 78-629
  3. After payment, IDR files a release with the county recorder

Before you pay penalties: check whether you can ask for them to be waived, and what the state needs paid first. How to ask

Source: Collections | Department of Revenue (opens in a new tab)

Ask for penalty relief

Penalties on a Iowa notice aren't always final. You can ask for them to be waived. Follow the steps below, including anything the state requires you to file or pay before it reviews the request.

Penalty Waiver Request

Form 78-629
  1. If you haven't already, file any missing returns and pay the tax due through GovConnectIowa
  2. Request the waiver online through GovConnectIowa, or send Form 78-629 by fax (515-281-3756) or mail, using a separate form for each penalty
  3. Enter the reason code from the list in the form instructions and attach supporting documents; most reasons are denied without them
  4. If your reason is not on the list, review the Abatement Application (96-131) instead

What qualifies: Only the reasons listed in Iowa Code section 421.27 and on Form 78-629, such as paying at least 90% of the correct tax on time, a clean filing and payment record for the prior 36 months (monthly or quarterly filers), death, serious illness, or records destroyed by fire or flood. Iowa law does not allow waivers for general 'reasonable cause'

Interest: The penalty waiver covers penalties only. IDR says its separate Abatement Application (96-131) can reduce tax, penalty and interest for doubtful liability or to promote effective tax administration, and that decision is discretionary

Source: Penalties and Interest Rates | Department of Revenue (opens in a new tab)

Before you respond

  • Check the date on the notice. Response windows usually run from that date, not the day you open it.
  • Match the account number and filing period to your own records before paying or disputing.
  • If returns are missing, filing the actual returns usually replaces an estimated bill. Confirm how on the notice or with the authority.
  • Ask about penalty relief before paying penalties, and check what must be paid with the request. See how
  • Keep a copy of the notice and everything you send back.

This page is general information, not tax or legal advice. Notice names and procedures change, so always follow the instructions on your notice and the official sources linked above.

Need the rates, nexus thresholds and filing rules? Read the Iowa sales tax guide.

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