Do I Need to Collect Sales Tax? Complete FAQ for Remote Sellers in 2026

If you’re running an online business or selling products across state lines, you’ve likely asked yourself: “Do I need to collect sales tax?” The answer has become increasingly complex since the Wayfair decision established economic nexus thresholds nationwide. This comprehensive FAQ addresses the most common questions about remote seller sales tax obligations.

FAQ 1: How Do I Know If I Have Sales Tax Nexus?

The first step in determining whether you need to collect sales tax is understanding nexus. Sales tax nexus is the legal connection between your business and a state that requires you to collect and remit sales tax.

Types of Nexus to Consider

There are two primary types of nexus in 2026:

• Physical Nexus: Having a physical presence like an office, warehouse, or employees
• Economic Nexus: Exceeding sales or transaction thresholds in a state

Additionally, some states recognize click-through nexus (through affiliate relationships) and marketplace facilitator obligations.

FAQ 2: What Are the Economic Nexus Thresholds by State?

Most states with sales tax have adopted economic nexus laws. The most common threshold is $100,000 in annual sales OR 200 transactions, though this varies by state.

Key State Thresholds (2026)

• California: $500,000 (no transaction threshold)
• Texas: $500,000 (no transaction threshold)
• New York: $500,000 AND 100 transactions
• Florida: $100,000
• Illinois: $100,000 OR 200 transactions

For a complete breakdown, see our economic nexus threshold guide.

FAQ 3: Do I Need to Register for Sales Tax Permits?

Once you establish nexus in a state, you generally must register for a sales tax permit before making taxable sales. Operating without registration can result in significant penalties.

Registration Timing

Most states require registration:

• Before the first taxable sale, OR
• Within 30 days of establishing nexus

Some states offer a “grace period” but relying on this is risky. For registration guidance, consult our sales tax registration guide.

FAQ 4: What If I Sell Through Amazon or Other Marketplaces?

Marketplace facilitator laws have simplified compliance for many sellers. These laws require platforms like Amazon, eBay, and Etsy to collect sales tax on behalf of third-party sellers.

Your Responsibilities as a Marketplace Seller

While marketplaces collect tax on platform sales, you remain responsible for:

• Sales through your own website
• Direct sales to customers
• Compliance in states without marketplace laws
• Income tax obligations

For platform-specific guidance, see our Amazon seller tax nexus guide.

FAQ 5: Do I Charge Tax on Shipping?

Shipping taxability varies by state. In general:

• If the product is taxable, shipping is usually taxable
• If shipping is separately stated, some states exempt it
• Handling charges are typically taxable

Always check specific state rules, as this is a common audit issue.

FAQ 6: What About Drop Shipping?

Drop shipping creates complex nexus scenarios. Generally:

• If your supplier has nexus in the destination state, they may need to collect tax
• You may need to provide a resale certificate to avoid double taxation
• If you have nexus, you’re responsible for collecting tax

FAQ 7: How Do SaaS Companies Handle Sales Tax?

Software-as-a-Service (SaaS) companies face unique challenges. Taxability varies significantly by state:

States Taxing SaaS

• Arizona, Connecticut, Hawaii, Iowa, Massachusetts, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Washington

States Not Taxing SaaS

• California, Florida, Georgia, Illinois, Michigan, North Carolina

For a complete state-by-state breakdown, visit our SaaS sales tax guide.

FAQ 8: What Happens If I Didn’t Collect Sales Tax?

If you discover you’ve been selling in a state where you have nexus without collecting tax, you have options:

Voluntary Disclosure Agreements (VDA)

A Voluntary Disclosure Agreement allows you to come forward voluntarily, often with:

• Limited lookback period (typically 3-4 years vs. unlimited)
• Penalty abatement
• Payment plan options

Prospective Compliance

Register and begin collecting tax immediately. This doesn’t address past liability but stops the bleeding.

FAQ 9: How Do I Calculate Economic Nexus?

Calculating whether you’ve met economic nexus thresholds requires:

Step-by-Step Process

1. Collect Data: Gather sales by destination state for the current and prior calendar year
2. Calculate Revenue: Sum gross sales (including exempt sales, typically)
3. Count Transactions: Number of separate sales into each state
4. Compare to Thresholds: Check against each state’s current requirements
5. Monitor Continuously: Track monthly to catch threshold crossings promptly

For help with calculations, use our sales tax nexus calculator or consult with tax professionals at Abaca Tax.

FAQ 10: What Are the Penalties for Non-Compliance?

Penalties for failing to collect sales tax can be severe:

Typical Penalties

• Unpaid Tax: You owe the tax you should have collected
• Penalties: 10-25% of unpaid tax
• Interest: Compounded monthly on tax and penalties
• Criminal Charges: In cases of willful evasion

For audit defense strategies, see our comprehensive guide.

FAQ 11: Do I Need to File Returns If I Have No Sales?

Yes, most states require “zero returns” even when you have no taxable sales. Failure to file can result in penalties and jeopardize your permit.

FAQ 12: How Often Do I Need to File?

Filing frequency depends on your sales volume:

• Monthly: High-volume sellers (varies by state, typically $10K+/month)
• Quarterly: Most medium-sized businesses
• Annually: Low-volume sellers

FAQ 13: Can I Use Software to Handle This?

Yes, sales tax automation software can significantly simplify compliance:

Popular Solutions

• Avalara AvaTax
• TaxJar
• Vertex
• Thomson Reuters ONESOURCE

These tools can calculate rates, track nexus, and even file returns automatically.

FAQ 14: What About International Sellers?

International businesses selling into the US face the same remote seller sales tax obligations as domestic companies. The Wayfair decision applies equally to foreign sellers.

FAQ 15: When Should I Hire a Sales Tax Professional?

Consider hiring a sales tax expert when:

• You’re approaching economic nexus in multiple states
• You’ve received an audit notice
• You need help with a VDA
• Your product taxability is complex (SaaS, digital goods, etc.)
• You don’t have internal tax expertise

For expert assistance, contact our partners at Abaca Tax or explore state-specific guidance at States Sales Tax.

Conclusion: Don’t Navigate Sales Tax Alone

Understanding whether you need to collect sales tax is essential for business compliance and avoiding costly penalties. The post-Wayfair landscape means more businesses than ever have remote seller sales tax obligations.

If you’re unsure about your nexus position or need help with compliance, Taxurai.com offers comprehensive resources and can connect you with experienced tax professionals who specialize in multi-state sales tax compliance.

Take Action: Review your sales data today, check our economic nexus threshold guide, and ensure you’re compliant in every state where you do business. The cost of compliance is always less than the cost of penalties, interest, and audit defense.