Wisconsin’s My Tax Account, the state’s online tax portal at tap.revenue.wi.gov, lets you register, file returns, make payments, and manage state tax obligations without mailing paper forms. The Department of Revenue runs the system for both individuals and businesses, and a single login covers everything from individual income tax to sales, withholding, and corporate franchise accounts.
What You Can Do Once You’re In
The portal handles the full lifecycle of a Wisconsin tax account. You can file returns, make or schedule payments, check refund status, request a payment plan, view notices from the Department, and give a tax professional access to your account.1Wisconsin Department of Revenue. DOR Make a Payment Business users file sales and use tax, employee withholding, and corporate income or franchise tax through the same dashboard, along with more specialized accounts like liquor tax, motor fuel tax, and premier resort area tax. A few taxes, such as cigarette and tobacco products tax, are pay-only through the portal rather than full account management.
Registering a Personal Account
Go to tap.revenue.wi.gov and select Sign Up. For a personal profile, pull out your documents before you start, because every field is matched against the Department’s records and a single mismatch will stop the registration.2Wisconsin Department of Revenue. Using My Tax Account for Personal Use
You will need:
- Your Social Security number, last name, and ZIP code.
- One identifying document: a non-expired Wisconsin driver’s license or state ID, a W-2 from the last three years, or a 1099-R from the last three years.
- Your Wisconsin income from one of the last three years, required for individual income tax and homestead credit accounts.
You will also pick a username of 5 to 20 characters starting with a letter or number, and a password of at least eight characters with upper and lower case letters, a number, and a special character. The password is case-sensitive and cannot contain your username. The Department recommends separate profiles for personal and business use, and the same email address cannot be used across multiple profiles.2Wisconsin Department of Revenue. Using My Tax Account for Personal Use
Registering a Business Account
Business registration asks for a Federal Employer Identification Number (FEIN) for most entities applying for a permit or certificate, plus the Wisconsin tax account number the Department assigned when you first registered the business.3Wisconsin Department of Revenue. Business Tax Online Registration Enter both exactly as they appear on your official documents; one wrong digit blocks access.
If the Department has sent you recent correspondence, you may also need the Letter ID printed on that mail to complete verification. If you have not received a letter, contact the Department rather than trying to work around that step.
Logging In and Security Codes
My Tax Account uses two-step verification. On your first login you give the Department an email address or cell phone number for security codes, and whenever you sign in from a new device or browser you enter a one-time code sent to that address.2Wisconsin Department of Revenue. Using My Tax Account for Personal Use
Checking the “trust this device” box skips the code on familiar devices, but clearing cookies or switching browsers will trigger a new one. Previous codes stop working the moment you request a new one, so if you accidentally request two, use the most recent. The contact details for codes can be different from the email on your profile, and they can be reused across multiple profiles.
One practical warning: the portal logs you out after 15 minutes of inactivity, and unsaved work is lost. Save as you go on a long return.
Filing Returns and Making Payments
After login, your active accounts show on a dashboard where you pick a filing period. The portal walks you through digital versions of state forms such as Form ST-12 for sales tax or Form WT-7 for annual withholding reconciliation, and submitting a return produces a confirmation number that serves as proof of filing.4Wisconsin Department of Revenue. How to
Direct debit from a checking or savings account is free. Credit card, Apple Pay, and PayPal are accepted but carry convenience and processing fees.1Wisconsin Department of Revenue. DOR Make a Payment Direct debit runs through the Automated Clearing House system. ACH debit, where you authorize the Department’s bank to pull funds, has no fee; ACH credit, where your bank pushes funds, may carry a fee from your bank.5Wisconsin Department of Revenue. Electronic Funds Transfer
Logged-in users can schedule payments for a future date, save banking information for reuse, and cancel scheduled payments before they process. The account history keeps a running record of what you’ve paid.1Wisconsin Department of Revenue. DOR Make a Payment
Amending a Return
Wisconsin’s WisTax system supports amended individual income tax returns and homestead credit claims filed electronically.6Wisconsin Department of Revenue. DOR WisTax An amended return replaces the original entirely, so complete every field, not just the ones that changed. For business returns, follow the amendment instructions on the specific form inside the portal.
If You Can’t Pay the Full Balance
The Department offers payment plans through TAP. With an existing profile, log in, open Manage My Collection, and choose Request New Plan under the Payment Plan option. Without a profile, go to tap.revenue.wi.gov and select Request a Payment Plan under Additional Services.7Wisconsin Department of Revenue. DOR Can’t Pay in Full?
On a plan, you must file and pay all future returns on time. The Department will stop other collection action, but it will intercept any federal, Wisconsin, or other-state refunds and apply them to your balance, and it may file a tax warrant to secure the debt. Interest keeps accruing on the unpaid balance while the plan is active.
If you prefer paper, submit Form A-771 for individuals or Form A-774 for businesses by email to DORCompliance@wisconsin.gov or by mail.
What Late Filing Costs
Penalties depend on the tax type. For individual income tax, a late return triggers a $50 fee plus delinquent interest of 1.5% per month, which comes to 18% per year on the unpaid balance, and a separate negligence penalty of 5% per month on the unpaid tax for failure to file timely.8Wisconsin Department of Revenue. Individual Income Tax Deadlines and Late-Filed Returns
A delinquent sales and use tax return carries a $20 late filing fee plus a penalty of 5% of the unpaid tax for each month late, capped at 25%.9Wisconsin State Legislature. Wisconsin Code 77.60(4) Corporate and other tax types carry the same 1.5%-per-month delinquent interest rate.
Giving a Tax Professional Access
You can grant your accountant or other preparer access to your account, but the setup differs by account type.
For individual income tax and homestead credit, the taxpayer needs their own My Tax Account profile with master access and a valid Power of Attorney on file with the Department. The preparer then logs into their own profile, opens Manage My Profile, selects Request Access to a Third Party Account, and submits the request. The taxpayer gets an email with approval instructions.10Wisconsin Department of Revenue. Third-Party Preparers
For business accounts where the client has no profile, the client signs Form A-777a authorizing access. The preparer submits the request through TAP; if the client has no master account, the request is auto-approved after a notification letter goes to the business. If a master account exists, the client approves manually by email.
The common snag: a preparer cannot complete an individual access request until the taxpayer has both a profile and a Power of Attorney on file. Get both in place well before a deadline, because the system will block the request if either piece is missing.