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Sales tax, explained.
Guides, compliance tips, and regulatory updates. Clear language only.
Selling Live Across States: Sales Tax for Whatnot & TikTok Shop Sellers
Whatnot and TikTok Shop collect sales tax on orders in states that require it. Thresholds, inventory, card shows and off-app sales are where you're on your own.
Reselling as a Side Hustle: When Does Sales Tax Apply?
Selling your own stuff now and then usually isn't a business. Buying to resell usually is. Here's where states draw the sales tax line for side hustlers.
Resale Certificates for Thrift & Flea Market Sourcing: What Works Where
A resale certificate can take sales tax off thrift, flea market and estate sale inventory, but only where tax is charged and the seller accepts it. Here's how.
Multi-State Sales Tax Compliance for E-Commerce Sellers: The Complete Roadmap
Selling into many states means six jobs in order: find your nexus, register, collect, file, fix what you missed, and keep watch. Here's the roadmap.
Thrift & Vintage Reseller Sales Tax Guide: Poshmark, Mercari & More
Poshmark, Mercari, Depop and eBay collect sales tax on your sales. Pop-ups, flea markets, DMs and some state permits are still on you. Here's the split.
Sneaker Reseller Sales Tax Guide: StockX, GOAT & eBay
StockX, GOAT, and eBay collect sales tax on marketplace sales in the states they cover, but direct sales, some state permits, and the 1099-K are still on you.
Sports Card & Collectibles Reseller Sales Tax Guide
Whatnot and eBay collect sales tax on card sales, but card-show tables, your own site, and the misunderstood 28% collectibles rate can still trip you up.
Do You Need a Reseller Permit to Sell Online?
Out-of-state marketplace-only sellers often need no permit, but some home states require one, and direct sellers need one where they have nexus.
Sales Tax VDAs: How Behind Sellers Come Clean (Without Panic)
A voluntary disclosure agreement (VDA) limits back sales tax to 3-4 years and waives penalties when you come forward first. How VDAs work and who qualifies.
States Without Sales Tax: What Online Sellers Still Owe (2026)
Five states have no statewide sales tax in 2026: Alaska, Delaware, Montana, New Hampshire, and Oregon. Here's what online sellers still owe in each direction.
The Cheapest Way to File Quarterly Sales Tax in 2026
Taxero charges $19.99 per filing with no subscription — the most affordable quarterly sales tax option in 2026. Compared to TaxJar, Avalara, and Kintsugi.
I Forgot to File Sales Tax — Here's How to Catch Up (Without Panic)
Missed sales tax filings? Guide to catching up, minimizing penalties, and getting compliant before the state finds you — including VDA options.
TaxJar vs Taxero vs TaxCloud: Honest Comparison for Small Business (2026)
Honest comparison of TaxJar, Taxero, and TaxCloud for small business sales tax in 2026. Taxero wins on price for quarterly filers — full breakdown here.
What Is Economic Nexus and When Does It Apply to My Business?
Economic nexus means owing sales tax in a state once your sales there cross its threshold, often $100,000, with no physical presence needed. Here's how it works.
What Happens If You Don't File Sales Tax Returns?
Missing a sales tax filing triggers penalties and interest. Most states have paths to reduce penalties if you catch up proactively — here's what to expect.
The Best Moat Isn't Your Product. It's Your Ability to Scale Without Breaking.
Scaling e-commerce without a sales tax plan turns gaps into back-tax liabilities. How to build compliance into growth before states come looking for you.
How to Deregister from a State for Sales Tax
If you no longer have nexus in a state, you can close your sales tax registration. Here's how deregistration works and when to do it.
Marketplace Facilitators Explained: Does Amazon (or Shopify) Collect Tax For You?
Marketplace facilitator laws shifted sales tax collection from sellers to platforms. But the rules are more nuanced than 'Amazon handles it.' Here's how it works, and where it doesn't cover you.
You Just Hit a State's Sales Tax Threshold. Here's Your Next 30 Days.
You crossed the economic nexus threshold in a new state. Don't panic — here's exactly what to do in the next 30 days to get registered and compliant.
Resale Certificates Explained: How to Buy Inventory Tax-Free
If you buy products to resell, you can usually buy them tax-free with a resale certificate. Here's how resale certificates work and what you need to know.
SaaS Sales Tax by State: Which States Tax Cloud Software in 2026
About 23 states tax SaaS. 11 clearly don't. 9+ are uncertain. Here's the full state-by-state breakdown of SaaS sales tax — based on Arbor's verified legal research.
Sales Tax vs. Use Tax: What's the Difference?
Sales tax and use tax are two sides of the same coin. Here's how they work together, when use tax applies, and what it means for online sellers.
Instagram Shop Is Coming Back. Here's What Changed About Your Sales Tax Obligations.
Instagram Shop is not a marketplace facilitator — sellers handle their own registration and filing. What Instagram sellers owe and how to stay compliant.