Nevada businesses and local-finance users have just over two months to prepare for the final expansion of the state’s online tax system. The Department of Taxation says the third and final phase of My Nevada Tax will launch Dec. 7, moving nine additional programs onto the portal for filing, account management and payments.

The Dec. 7 rollout covers the tire fee, exhibition facility fee, transportation connection tax, wholesale cannabis tax, retail cannabis tax, bank excise tax, lodging room tax, centrally assessed property and mining valuations, and local government finance. The change reaches a wide mix of taxpayers and public agencies, from transportation companies and lodging operators to cannabis businesses, banks, mining interests and local governments.

The department is urging organizations that still file on paper or use older workflows to transition to My Nevada Tax. Its guidance says all tax types will be fully supported in the portal after the launch. Businesses should confirm that the correct employees can sign in, review account access and payment permissions, and download any records needed for internal reconciliation before the switch.

Electronic-payment setup deserves particular attention. The department’s transition notice says taxpayers whose banks use debit blocks should authorize the state’s My Nevada Tax company identifier, P886000022, before initiating an ACH debit. Without that authorization, a bank can reject the payment, potentially leaving the taxpayer with a bill that includes penalty and interest. Organizations should verify the identifier directly against the department’s current instructions rather than relying on a saved number from an older system.

Cannabis sellers face an additional compliance track. A Department of Taxation FAQ says wholesale and retail cannabis tax accounts will not appear in My Nevada Tax until Dec. 7. Existing sellers were required to submit a separate Cannabis Tax Permit application by Sept. 1 for each location. The department says businesses that remain noncompliant on Jan. 1, 2027, can be referred to the Cannabis Compliance Board for license suspension, and approved permits are due to be mailed by Jan. 15. The tax permit is separate from a Cannabis Compliance Board license and a sales-tax permit.

The portal rollout is part of a multiyear modernization rather than a stand-alone website change. During a 2025 legislative hearing, tax officials described My Nevada Tax as an integrated system intended to support electronic notices, earlier revenue distribution and reduced mailing costs. The Assembly Revenue Committee record also notes that taxpayers may opt out of electronic communications when the law permits, while certain deficiency and permit actions still require personal service or mail.

Businesses should also keep filing calendars separate from the platform migration. Nevada changed the sales-and-use-tax deadline earlier this year: beginning with the January 2026 filing period, returns and payments are due on the 20th day after each taxable period, or the next business day when the 20th falls on a weekend or recognized holiday. The department’s Jan. 23 notice says the revised deadline applies to every Nevada business required to file those returns.

The practical takeaway is to treat Dec. 7 as an operational cutover, not merely a software launch. Affected organizations should assign an account owner, test credentials and bank authorization, document outstanding paper filings, and identify any location-specific cannabis permit issue now, while state support and transition materials are available.