Tax Audit Protest and Appeal — Wisconsin
Tax Audit Protest and Appeal (WISCONSIN)
Quick-Reference Summary
| Item | Detail |
|---|---|
| Taxing Agency | Wisconsin Department of Revenue (DOR) |
| DOR Address | 2135 Rimrock Road, Madison, WI 53713 |
| Mailing — Resolution Unit | Wisconsin Department of Revenue, Resolution Unit, MS 5-144, P.O. Box 8906, Madison, WI 53708-8906 |
| DOR Website | https://www.revenue.wi.gov |
| Online Portal | My Tax Account — https://tap.revenue.wi.gov |
| Independent Tribunal | Wisconsin Tax Appeals Commission (WTAC) |
| WTAC Address | 5005 University Avenue, Suite 110, Madison, WI 53705 |
| WTAC Mailing | P.O. Box 7867, Madison, WI 53707-7867 |
| WTAC Telephone | (608) 266-1391 |
| WTAC Website | https://taxappeals.wi.gov/ |
| Audit-to-Petition Deadline | 60 days after RECEIPT of Notice of Additional Assessment / Refund Denial (Wis. Stat. § 71.88(1)(a)) — JURISDICTIONAL |
| Petition for Redetermination | Filed with DOR Resolution Unit |
| DOR Action Period | 6 months from filing of petition (§ 71.88(1)(a) makes this directory but DOR generally complies) |
| WTAC Petition for Review Deadline | 60 days after Notice of Action / redetermination (Wis. Stat. § 73.01(5)(a)) — ABSOLUTE |
| Filing Method (WTAC) | Mail or hand delivery; NO email; NO online filing; certified-mail postmark exception under § 73.01(5)(a) |
| Filing Fee — WTAC | $25 per docket number (Wis. Stat. § 73.01(5)(a)); no fee for Homestead Credit, EITC, Farmland Preservation Credit, or municipal fees |
| Sales/Use Tax Track | Parallel rules under Wis. Stat. § 77.59 — 60-day petition for redetermination, 60-day appeal to WTAC |
| Burden of Proof | Taxpayer; for assessments based on income periods more than 6 years before the assessment year, burden shifts under § 71.77(8) |
| Standard of Review at WTAC | De novo |
| Statute of Limitations on Assessment | 4 years from return filing date (Wis. Stat. § 71.77(2)) for income/franchise tax |
| Sales/Use Tax SOL | 4 years from end of calendar year for which return was filed (Wis. Stat. § 77.59(3)) |
| Extended SOL | Assessment "when discovered" for fraudulent or unfiled returns (§ 71.77(3)) |
| Pay-to-Play | Not required to protest, but interest continues to accrue |
| Judicial Review | Circuit court under Wis. Stat. §§ 73.015 and 227.52-227.58 within 30 days of WTAC decision |
PART A — INFORMAL CONFERENCE REQUEST LETTER
[TAXPAYER LEGAL NAME]
[Street Address]
[City, WI ZIP]
SSN / FEIN: [____________________]
Wisconsin Tax Account No.: [____________________]
Telephone: [(___) ___-____]
Email: [____________________]
Date: [__/__/____]
VIA U.S. CERTIFIED MAIL, RETURN RECEIPT REQUESTED, AND MY TAX ACCOUNT UPLOAD
Wisconsin Department of Revenue
Audit Bureau — [Field Audit / Office Audit] Section
Attn: [AUDITOR NAME] and [SUPERVISOR NAME]
2135 Rimrock Road
Madison, WI 53713
Re: Pre-Assessment Conference Request and Position Statement — Audit Reference No. [_____]
| Item | Detail |
|---|---|
| Taxpayer | [TAXPAYER LEGAL NAME] |
| Wisconsin Tax Account No. | [____________________] |
| SSN / FEIN | [____________________] |
| Tax Type | ☐ Individual Income (Wis. Stat. ch. 71) ☐ Corporate Franchise/Income ☐ Sales/Use (ch. 77) ☐ Withholding ☐ Other: [_____] |
| Tax Periods Under Audit | [____________________] |
| Audit Type | ☐ Field Audit ☐ Office Audit |
| Audit Reference No. | [____________________] |
| Auditor | [____________________] |
| Auditor Supervisor | [____________________] |
| Proposed Adjustment | $[____________________] |
Dear Auditor and Supervisor:
This letter requests a pre-assessment conference under Wis. Admin. Code § Tax 2.12(2) and the DOR Audit Bureau's Taxpayer Advocate / Resolution procedures to discuss the proposed audit adjustments before issuance of a Notice of Additional Assessment. The Taxpayer disputes the proposed adjustments in the following respects and respectfully requests an in-person or telephonic conference with the auditor and the auditor's supervisor.
I. Issues in Dispute
-
[Issue 1]: [Concise statement and basis.]
-
[Issue 2]: [Concise statement and basis.]
-
[Issue 3]: [Concise statement and basis.]
II. Statement of Facts
[Numbered facts.]
III. Legal Authority
[Cite Wis. Stat. ch. 71 / 77, Wis. Admin. Code Tax 2 / 11, DOR Publications, Wisconsin Tax Bulletins, and WTAC / court decisions.]
IV. Documentation in Support
| Exhibit | Description |
|---|---|
| A | [____________________] |
| B | [____________________] |
| C | [____________________] |
V. Statute-of-Limitations Reservation
The Taxpayer reserves all SOL defenses under Wis. Stat. § 71.77 and § 77.59(3), including the 4-year general period and the burden-shift after 6 years under § 71.77(8).
VI. Form A-222 (Power of Attorney)
Form A-222 (Power of Attorney) authorizing [REPRESENTATIVE NAME] to represent the Taxpayer is attached.
Respectfully submitted,
________________________________
[TAXPAYER OR REPRESENTATIVE]
[Title]
Enclosures:
- Form A-222 (POA)
- Audit workpapers reference index
- Supporting documentation
PART B — FORMAL PROTEST: PETITION FOR REDETERMINATION
PETITION FOR REDETERMINATION
STATE OF WISCONSIN
DEPARTMENT OF REVENUE — RESOLUTION UNIT
In the Matter of:
[TAXPAYER LEGAL NAME]
Wisconsin Tax Account No.: [____________________]
Tax Periods: [____________________]
Notice of [Assessment / Refund Adjustment / Refund Denial] No.: [____________________]
Notice Date: [__/__/____]
Filed pursuant to Wis. Stat. § 71.88(1)(a) [or § 77.59(6) for sales/use tax].
I. Jurisdictional Statement
This Petition is filed within 60 days of the Taxpayer's receipt of the Notice and is therefore timely under Wis. Stat. § 71.88(1)(a) [or § 77.59(6)]. Receipt occurred on [__/__/____]. The 60-day period expires on [__/__/____].
II. Petitioner
| Item | Detail |
|---|---|
| Petitioner | [TAXPAYER LEGAL NAME] |
| Address | [______________] |
| SSN / FEIN | [____________________] |
| Wis. Tax Account No. | [____________________] |
| Tax Type | [____________________] |
| Periods | [____________________] |
| Notice Date | [__/__/____] |
| Date Notice Received | [__/__/____] |
| Amount Assessed | $[____________________] |
| Amount Disputed | $[____________________] |
III. Issues Presented
a. Whether [Issue 1].
b. Whether [Issue 2].
c. Whether penalties imposed under Wis. Stat. §§ 71.83, 71.84, or 77.60 should be abated.
IV. Statement of Facts
[Numbered factual allegations.]
V. Argument
A. The Assessment Is Wrong as a Matter of Law
[Develop legal argument citing Wis. Stat. ch. 71/77, Wis. Admin. Code Tax 2/11, DOR Publications and Tax Bulletins, and WTAC / Wisconsin court decisions (e.g., General Casualty Co. v. DOR; Deere & Co. v. DOR).]
B. The Assessment Is Not Supported by the Facts
[Argue factual record.]
C. Penalties Should Be Abated for Good Cause
Under Wis. Stat. § 71.83(1)(a) negligence penalties and § 71.83(2)(a) intent-to-defeat penalties are discretionary. Reasonable cause exists based on: [reliance on professional advice; ambiguity; ordinary business care; etc.]
D. Statute-of-Limitations Defense
The portion of the assessment relating to [period] is barred by the 4-year SOL of Wis. Stat. § 71.77(2). DOR's reliance on extended SOL provisions is misplaced because [no fraud; no intent to defeat; return was filed].
E. Burden-Shift Reservation (§ 71.77(8))
The Petitioner notes that, for any assessment relating to a period more than 6 years prior to the year of assessment, the burden of proof shifts to DOR under Wis. Stat. § 71.77(8).
VI. Relief Requested
WHEREFORE, the Petitioner respectfully requests that the Department:
a. Cancel the Notice of Additional Assessment in full;
b. Alternatively, redetermine the assessment to $[_____];
c. Abate all penalties;
d. Recompute interest accordingly; and
e. Issue refund of any amount paid plus statutory interest under Wis. Stat. § 71.82.
VII. Hearing Request
The Petitioner ☐ requests a conference with the Resolution Unit ☐ consents to disposition on the written record.
VIII. Verification
I declare under penalty of perjury under the laws of the State of Wisconsin that the foregoing is true and correct.
________________________________
[PETITIONER OR AUTHORIZED OFFICER]
Date: [__/__/____]
Prepared by:
________________________________
[REPRESENTATIVE NAME]
WI Bar No. / CAF No. [_____]
Form A-222 attached.
PART C — APPEAL COVER LETTER AND PETITION FOR REVIEW TO THE WISCONSIN TAX APPEALS COMMISSION
[PETITIONER NAME]
[Address]
[Telephone] / [Email]
Date: [__/__/____]
VIA U.S. CERTIFIED MAIL, RETURN RECEIPT REQUESTED, OR HAND DELIVERY
Clerk
Wisconsin Tax Appeals Commission
5005 University Avenue, Suite 110
Madison, WI 53705
(P.O. Box 7867, Madison, WI 53707-7867)
Re: Petition for Review — [PETITIONER] v. Wisconsin Department of Revenue
Dear Clerk:
Enclosed for filing is the original Petition for Review of [PETITIONER], with 5 additional copies as required by Wis. Admin. Code § TA 1.15. Filing fee in the amount of $25 per docket ($[_____] total) is included by [check / money order] payable to "Wisconsin Tax Appeals Commission."
This Petition is filed within 60 days of the Department's Notice of Action / redetermination dated [__/__/____] as required by Wis. Stat. § 73.01(5)(a) and is therefore timely.
Respectfully,
________________________________
[PETITIONER OR COUNSEL]
WI Bar No. [_____]
PETITION FOR REVIEW
STATE OF WISCONSIN
TAX APPEALS COMMISSION
| Party | Role |
|---|---|
| [PETITIONER LEGAL NAME], | Petitioner |
| v. | |
| WISCONSIN DEPARTMENT OF REVENUE, | Respondent |
Docket No. [Assigned by Commission]
1. Parties
a. Petitioner [PETITIONER LEGAL NAME] is [a Wisconsin resident / a corporation organized under the laws of [_____] and authorized to do business in Wisconsin] with principal residence/place of business at [______________]. Wisconsin Tax Account No.: [______________].
b. Respondent is the Wisconsin Department of Revenue, an agency of the State of Wisconsin.
2. Jurisdiction
a. The Tax Appeals Commission has jurisdiction under Wis. Stat. §§ 73.01 and 71.88(2)(a) [or § 77.59(6)(c) for sales/use tax].
b. This Petition is filed within 60 days of the Notice of Action / redetermination dated [__/__/____] and is timely under Wis. Stat. § 73.01(5)(a).
3. Decision Under Review
| Item | Detail |
|---|---|
| DOR Notice of Action Date | [__/__/____] |
| Date Received | [__/__/____] |
| Tax Type | [____________________] |
| Periods | [____________________] |
| Tax Assessed | $[____________________] |
| Penalties | $[____________________] |
| Interest | $[____________________] |
| Total | $[____________________] |
4. Procedural History
a. Petitioner filed return(s) for the periods in dispute on [__/__/____].
b. DOR conducted [a field audit / an office audit] and issued a Notice of [Additional Assessment / Refund Denial / Refund Adjustment] on [__/__/____].
c. Petitioner timely filed a Petition for Redetermination under Wis. Stat. § 71.88(1)(a) on [__/__/____].
d. DOR issued its Notice of Action on [__/__/____], [denying / partially denying] the Petition for Redetermination.
5. Statement of the Case
[Concise narrative.]
6. Issues Presented for Review
a. Whether [Issue 1].
b. Whether [Issue 2].
c. Whether penalties were properly imposed.
d. Whether any portion of the assessment is barred by Wis. Stat. § 71.77 (income/franchise) or § 77.59(3) (sales/use).
7. Statement of Facts
[Numbered factual allegations.]
8. Errors of the Department
a. The Department erred in [specific error].
b. The Department erred in [specific error].
9. Prayer for Relief
WHEREFORE, Petitioner respectfully requests that the Commission:
a. Set the matter for hearing under Wis. Admin. Code ch. TA 1;
b. Reverse the Notice of Action;
c. Order cancellation of $[_____] in tax;
d. Order abatement of penalties;
e. Order refund of $[_____] plus statutory interest under Wis. Stat. § 71.82 if tax has been paid; and
f. Grant such other relief as is just.
Respectfully submitted,
________________________________
[PETITIONER OR COUNSEL]
WI Bar No. [_____]
[Address] / [Phone] / [Email]
Date: [__/__/____]
CERTIFICATE OF SERVICE
I hereby certify that on [__/__/____], a courtesy copy of this Petition was served by [certified mail / first-class mail] upon:
Office of General Counsel
Wisconsin Department of Revenue
P.O. Box 8933
Madison, WI 53708-8933
________________________________
[Signature]
PART D — PRE-FILING CHECKLIST
Statute-of-Limitations and Deadline Verification
☐ Return filing date identified for each period
☐ Income/franchise 4-year SOL confirmed (Wis. Stat. § 71.77(2))
☐ Sales/use 4-year SOL confirmed (Wis. Stat. § 77.59(3))
☐ Burden-shift analysis under § 71.77(8) (>6 years) completed
☐ Fraud / unfiled-return "when discovered" exception analyzed (§ 71.77(3))
☐ Notice of Additional Assessment / Refund Denial RECEIPT date documented
☐ 60-day Petition for Redetermination deadline calendared with 10-day buffer
☐ Notice of Action / redetermination receipt date documented
☐ 60-day WTAC Petition for Review deadline calendared with 10-day buffer
☐ Filing-method rules confirmed: physical receipt OR certified mail with proper postmark only
Pre-Assessment Conference (Optional)
☐ Conference requested in writing during open audit
☐ Auditor + supervisor coordinates confirmed
☐ Position paper submitted (Part A)
☐ Form A-222 (POA) executed
Petition for Redetermination (DOR Resolution Unit)
☐ Petition drafted (Part B) with verified signature
☐ All issues raised — issue preservation for WTAC
☐ Exhibits indexed
☐ Filed by certified mail, return receipt requested
☐ Confirmation of receipt obtained
☐ 6-month DOR action period calendared
Notice of Action Review
☐ Notice of Action received and date-stamped
☐ 60-day WTAC clock reset
☐ Decision: accept / appeal to WTAC
WTAC Petition for Review
☐ Petition drafted (Part C)
☐ Original + 5 copies prepared per Wis. Admin. Code § TA 1.15
☐ $25 filing fee per docket (check or money order to "Wisconsin Tax Appeals Commission")
☐ Filing method confirmed: hand delivery OR certified mail only (NOT email, NOT online, NOT USPS Priority)
☐ Filed PHYSICALLY by 4:30 p.m. OR postmarked via certified mail before midnight of 60th day
☐ Service copy delivered to DOR Office of General Counsel
☐ Acknowledgment / docket number obtained
☐ DOR Answer expected within 30 days
WTAC Proceeding
☐ Telephone status conference attended
☐ Scheduling order entered
☐ Discovery plan adopted (Wis. Admin. Code ch. TA 1)
☐ Witness list prepared
☐ Exhibits pre-marked
☐ Stipulations negotiated
☐ Pre-hearing brief filed
☐ Hearing held; record preserved
Judicial Review
☐ WTAC decision reviewed
☐ Petition for Review to Circuit Court drafted under Wis. Stat. § 73.015
☐ Filed within 30 days
☐ Record on review designated
☐ Onward appeal to Wisconsin Court of Appeals considered
Payment / Collection
☐ Decision: contest without payment (interest accrues) OR pay-under-protest-and-claim-refund
☐ Interest accrual under Wis. Stat. § 71.82 / § 77.60 tracked
☐ Field audit finality risk under § 71.75(4) considered
Sources and References
- Wis. Stat. § 71.88 — Time for filing an appeal: https://docs.legis.wisconsin.gov/document/statutes/71.88
- Wis. Stat. § 71.77 — Statutes of limitations on assessments: https://docs.legis.wisconsin.gov/document/statutes/71.77
- Wis. Stat. § 73.01 — Tax Appeals Commission: https://docs.legis.wisconsin.gov/document/statutes/73.01
- Wis. Stat. § 73.015 — Judicial review: https://docs.legis.wisconsin.gov/document/statutes/73.015
- Wis. Stat. § 77.59 — Sales/use tax appeals: https://docs.legis.wisconsin.gov/document/statutes/77.59
- Wis. Admin. Code Ch. TA 1 — Tax Appeals Commission rules: https://docs.legis.wisconsin.gov/code/admin_code/ta/1
- WTAC FAQ: https://taxappeals.wi.gov/pages/FAQ/FrequentlyAskedQuestions.aspx
- WTAC Filing Procedures: https://taxappeals.wi.gov/
- Wisconsin DOR Resolution Unit: https://www.revenue.wi.gov/Pages/FAQS/ise-appeals.aspx
- Wisconsin DOR Audits & Appeals: https://www.revenue.wi.gov/Pages/Businesses/Audits-and-Appeals.aspx
- Form A-222 (Power of Attorney): https://www.revenue.wi.gov/DOR%20Publications/a-222.pdf
- My Tax Account Portal: https://tap.revenue.wi.gov/
- Alexander v. Dep't of Revenue, Wis. Tax Rptr. (CCH) ¶ 400-650 (WTAC 2002) — 60-day deadline absolute
END OF TEMPLATE
About This Template
Tax law covers the paperwork that documents income, deductions, disputes, and settlements with the IRS and state tax authorities. Protests, offers in compromise, installment agreement requests, and appeals each have their own forms, supporting documentation, and strict deadlines. Well-prepared tax correspondence is often the difference between a negotiated resolution and an enforcement action with levies, liens, or penalties.
Important Notice
This template is provided for informational purposes. It is not legal advice. We recommend having an attorney review any legal document before signing, especially for high-value or complex matters.
Last updated: May 2026