Maricopa, Arizona Raises Sales Tax by 0.50%
Maricopa, Arizona has announced a 0.50% sales tax rate increase, effective October 1, 2025. Businesses making sales in the city — whether local or remote — must update their systems to apply the new rate.
Written by Alex Lamachenka
Head of DemandGen
Published
What’s Changing
- Current city sales tax rate will increase by 0.50%
- Effective date: October 1, 2025
- Applies to both in-state sellers and remote sellers with nexus in Arizona
The change impacts all taxable retail sales made in Maricopa and will affect both point-of-sale systems and ecommerce checkouts.
Who’s Affected
- Local businesses operating in Maricopa
- Remote sellers who have economic nexus with Arizona (over $100,000 in annual sales or 200 transactions)
- Marketplace facilitators responsible for collecting on behalf of third-party sellers
Why It Matters
- Compliance deadlines: Sellers must ensure rates are updated by October 1 to avoid under-collection or penalties
- Customer pricing: The increase may affect order totals for Maricopa buyers, which should be communicated clearly
- Multi-jurisdiction complexity: Local rate changes like this underscore the difficulty of keeping tax tables accurate without automation
What Sellers Should Do
- Update your tax tables and checkout systems before October 1
- Confirm POS and ecommerce platforms are applying the new Maricopa rate
- Consider sales tax automation with TaxCloud to handle ongoing local rate changes across Arizona and beyond
Other US Sales Tax Updates
Washington expands retail sales tax to new services October 1, 2025
Starting October 1, 2025, Washington expands its retail sales tax to new service categories. If your business sells or buys these services in Washington, you’ll need to plan for the change.
Ohio requires delivery network fees to be taxed effective April 3, 2025
Under Ohio House Bill 315, delivery network service fees became taxable starting April 3, 2025, regardless of whether the underlying goods are taxable. Businesses using third-party delivery services should verify that their tax calculations reflect this change.
California clarifies that cooking-class fees may be taxable
New state guidance helps cooking class providers determine when to charge sales tax — and when they’re considered service providers, not food sellers.