Maricopa, Arizona Raises Sales Tax by 0.50%

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

If you use TaxCloud: You don’t need to chase every city rate update. Our platform automatically applies local changes — like Maricopa’s 0.50% increase on October 1 — so your checkout and filings stay accurate without the scramble.

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