2027 Wyoming Tax Deadlines

Last updated: August 5, 2026

Key Wyoming tax dates at a glance

• January 31, 2028: Calendar-year 2027 annual sales and use tax return, when assigned annual filing frequency applies.
• February 25, 2028: Annual ad valorem mineral return deadline, subject to requested extension procedures.
• March 25, 2028: January 2028 mineral severance tax deadline before weekend or payment-method rules are checked.
• Monthly cycle: Sales and use tax returns are generally due on the last day of the month following the reporting period.
• Quarterly cycle: Sales and use tax returns are generally due April 30, July 31, October 31, and January 31.
• Entity-specific: Wyoming annual reports are generally due on the first day of the entity's anniversary month.

Does Wyoming require a state income tax return for 2027?

Wyoming imposes no personal or corporate income tax and has no state income-tax return or extension calendar. Calendar-year 2027 planning should focus on sales and use tax, mineral taxes, annual reports, and activity-based obligations.

What Wyoming business deadlines apply for 2027?

Wyoming business deadlines depend on the tax program, filing frequency, payment method, and state account setup. The state-specific items below should be managed as operational tax work, not as an invented income-tax deadline.

• Individuals, C Corporations, S Corporations, and Partnerships do not file a Wyoming income tax return solely because of Wyoming residency or formation.
• Federal returns, returns in other states, and Wyoming activity-based taxes may still apply.
• Avoid creating Forms, estimates, extensions, or income-tax rates that Wyoming does not have.
• Sales and use tax returns are generally due on the last day of the month following the reporting period, with payment due with the return.
• Severance tax is due monthly on the 25th day of the second month following production.
• Annual ad valorem mineral returns are due February 25, and the Department allows a requested extension for the annual ad valorem return.
• Wyoming entities generally file an annual report with the Secretary of State on the first day of the anniversary month.
• Evaluate unemployment insurance, payroll, property, lodging, fuel, and local obligations based on activity.
• File and pay through WYIFS.

When are Wyoming business estimated payments due?

Wyoming estimates and payments are program-specific. Sales and use tax follows assigned filing frequency, mineral taxes follow production and valuation rules, and annual reports follow the entity anniversary month.

• Monthly sales and use tax returns are generally due on the last day of the month following the reporting period.
• Quarterly sales and use tax returns are generally due April 30, July 31, October 31, and January 31.
• Mineral severance tax is due monthly on the 25th day of the second month following production.
• Annual ad valorem mineral returns are due February 25, with requested extension procedures available for the annual return.

Tax-professional context: Because Wyoming levies no personal or corporate income tax, the professional workload for 2027 sits almost entirely in transaction, extraction, and entity-maintenance filings, each with its own frequency, portal, and payment rule. The items below frame the recurring compliance and planning judgments, not new deadlines.

Sales and use tax:

• Confirm nexus and the filing frequency the Department assigns each account, since monthly and quarterly filers follow different cycles.
• Track the state rate plus optional county and local taxes that vary by jurisdiction and delivery location.
• Apply use tax to out-of-state and untaxed purchases where sales tax was not collected.
• Evaluate remote-seller and marketplace-facilitator collection duties for clients selling into Wyoming.

Mineral severance tax:

• Rates and valuation methods vary by mineral type and extraction method (oil and gas, coal, trona/soda ash, bentonite, uranium, and other industrial minerals).
• Coordinate monthly severance reporting with the separate annual ad valorem mineral return as distinct obligations.
• Watch production-timing and valuation rules, since severance liability follows production volumes and market value.

Annual report and license tax:

• Wyoming entities file an annual report with the Secretary of State keyed to the entity's anniversary month; the report carries the annual report license tax.
• The license tax is generally based on assets located and employed in Wyoming, subject to a statutory minimum. Confirm the current figure with the Secretary of State before quoting an amount.
• Keep the registered agent and entity standing current to avoid administrative dissolution.

Electronic filing and payment:

• File and pay sales/use and severance obligations through WYIFS (Wyoming Internet Filing System).
• File annual reports through the Secretary of State's online business filing system.
• Most programs offer no extension and payment is generally due with the return.

Instead AI helps tax teams treat Wyoming due dates as operational work, not a static checklist.

With no Wyoming income tax but severance, sales, and ad valorem obligations to track, firms can find specialist support through the accounting firm directory.

What sources support these Wyoming dates?

• Wyoming Department of Revenue.
• Wyoming Department of Revenue rules and regulations.
• Wyoming mineral tax process memorandum.
• Wyoming Secretary of State annual reports.

Keep Wyoming no-income-tax workflows accurate

Instead's AI-driven tax platform helps Wyoming teams coordinate business-tax work, payment review, extensions, and filing follow-through before deadlines move from planning to execution.

For Wyoming practices, multi-entity, integrations, and businesses help connect research, planning, and operational handoffs without duplicating deadline data. Built for tax professionals who want source-backed state deadline control across clients, entities, and reviewer workflows.