💡 Free Sales Tax Nexus Calculator
Select states → Enter sales data → Get instant sales tax nexus threshold by state analysis → Download report
📊 Nexus Calculator
Enter your sales data to check nexus obligations
What is Sales Tax Nexus? Free Avalara Alternative
Sales tax nexus determines when your business must collect and remit sales tax in each state. Our free sales tax nexus by state calculator helps you check California sales tax nexus, Nevada sales tax nexus, Arizona sales tax nexus, and all 50 states instantly.
What is Tax Nexus?
Legal connection requiring sales tax collection in a state
Economic Nexus
Triggered by sales thresholds without physical presence
Avalara Alternative
Free tool vs expensive Avalara subscriptions
What is Sales Tax Nexus?
Definition & Basics
Sales tax nexus is the legal connection between a business and a state that creates an obligation to collect and remit sales tax. This connection can be established through physical presence or economic activity within the state.
Understanding what is sales tax nexus is crucial for any business selling products or services across state lines, as it determines where you must register, collect, and pay sales taxes.
Types of Nexus:
- • Physical Nexus: Having employees, offices, warehouses, or inventory in a state
- • Economic Nexus: Exceeding sales or transaction thresholds without physical presence
- • Affiliate Nexus: Relationships with in-state businesses or representatives
Economic Nexus Explained
Common Thresholds
Standard Rule: $100,000 OR 200+ transactions
High Threshold: $500,000 (CA, TX)
Sales Only: No transaction count (FL, CO, WA)
Unique Rule: $500,000 AND 100+ transactions (NY)
Key Considerations:
- ✓ Thresholds are typically measured annually
- ✓ Based on sales to customers in that state
- ✓ Applies to current or previous calendar year
- ✓ May include marketplace sales in some states
Important: Once nexus is triggered, you typically must register within 30-60 days and begin collecting sales tax on future sales to that state.
The Wayfair Decision Impact
The 2018 Supreme Court case South Dakota v. Wayfair revolutionized sales tax by allowing states to require out-of-state sellers to collect sales tax based on economic activity alone. This decision eliminated the previous requirement for physical presence and enabled states to implement economic nexus thresholds, fundamentally changing e-commerce taxation.
Quick Sales Tax Nexus Reference (Mobile-Friendly)
📱 Most Searched States on Mobile
🏪 Small Business Nexus Guide
If you're a small e-commerce business selling on mobile:
- • Track sales by state monthly
- • Most states: $100,000 OR 200 transactions triggers nexus
- • California & Texas have higher $500,000 thresholds
- • Register within 30-60 days once triggered
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State Nexus Rules - Mobile Quick Search
High-Volume Search States
California Sales Tax Nexus
$500,000 sales only • No transaction count • 7.25%-10.75% rates
Nevada Sales Tax Nexus
$100,000 OR 200+ transactions • 4.6%-8.375% rates • Growing state
Arizona Sales Tax Nexus
$100,000 OR 200+ transactions • Transaction tax state • E-commerce hub
Business-Friendly States
New Jersey Sales Tax Nexus
$100,000 OR 200+ transactions • 6.625% flat rate • No local taxes
Nebraska Sales Tax Nexus
$100,000 OR 200+ transactions • 5.5%-9% rates • Midwest business hub
No Sales Tax States
Alaska • Delaware • Montana • New Hampshire • Oregon
📱 Mobile E-commerce & Sales Tax Nexus
Shopify Sellers
Track nexus across all sales channels. Use our calculator before reaching thresholds.
Amazon FBA
Inventory storage creates physical nexus. Check economic nexus for marketplace sales.
Digital Products
Software, courses, apps subject to nexus rules. Monitor sales by customer location.
Common Mobile Searches - Quick Answers
"Do I need to collect sales tax?"
Yes, if you exceed nexus thresholds in any state where you have customers. Use our calculator to check instantly.
"How much sales triggers nexus?"
Most states: $100,000 OR 200 transactions. California/Texas: $500,000. New York: $500,000 AND 100 transactions.
"Free alternative to Avalara?"
Our tool provides free nexus checking without monthly fees. Perfect for small businesses and startups.
"Which states have nexus laws?"
45 states + DC have sales tax. Only Alaska, Delaware, Montana, New Hampshire, Oregon have no statewide sales tax.
Frequently Asked Questions
Important Notice
This tool provides general guidance only. Tax laws are complex and change frequently. Always consult with a qualified tax professional for advice specific to your business.