US Sales Tax Guide for Online Sellers (2026)
A practical 2026 guide to sales tax nexus, registration, sourcing, product taxability, filing, and marketplace sales in the United States.
Sales Tax Guides & Resources
Explore official-source 2026 tax guides for US sales tax, nexus, product taxability, VAT, GST, and cross-border eCommerce.
Canada GST, HST & PST Guide for Businesses (2026)
Understand Canada’s GST/HST registration threshold, provincial sales taxes, place-of-supply rules, input tax credits, and digital-economy obligations.
EU VAT for Online Sellers: OSS, IOSS & 2026 Rules
A current guide to EU VAT rates, the €10,000 cross-border threshold, OSS, IOSS, marketplaces, VIES, and the July 2026 low-value import duty change.
Economic Nexus by State: 2026 Sales Tax Guide
Learn how state economic nexus thresholds work, which sales count, why transaction thresholds are disappearing, and how to build a defensible monitoring process.
Marketplace Facilitator Sales Tax Guide (2026)
Understand when marketplaces collect and remit sales tax, what sellers still own, how marketplace sales affect nexus, and how to reconcile every channel.
Australia GST Guide for Online & Overseas Sellers (2026)
A practical guide to Australia’s 10% GST, A$75,000 registration threshold, digital products, low-value imported goods, platforms, BAS, and records.
Sales Tax Exemption & Resale Certificates Guide (2026)
Learn how to collect, validate, store, renew, and audit resale and exemption certificates across US sales tax jurisdictions.
Sales Tax Nexus Determination: A Step-by-Step Guide
Determine sales tax nexus using physical presence, state revenue definitions, marketplace records, threshold timing, and a documented registration decision.
SaaS Sales Tax Sourcing: Where Is Software Used?
Determine SaaS customer location with user evidence, state-specific sourcing rules, multistate allocation, billing controls, and a worked subscription example.
Australia GST on Low-Value Imported Goods
Plan Australian GST for overseas goods sales: the A$1,000 goods test, A$75,000 turnover threshold, marketplace responsibility, shipping data, and refunds.
How to Test Sales Tax in Your eCommerce Checkout
Test checkout sales tax with an evidence-based matrix for destinations, products, discounts, exemptions, refunds, and order exports.
Sales Tax Recordkeeping: What to Keep and How to Organize It
Build a sales tax recordkeeping system covering orders, exemptions, marketplace reports, returns, retention rules, and usable exports.
How to File US Sales Tax Returns: Complete 2026 Guide
Prepare a US sales tax return from gross sales to payment: reconcile channels, map deductions, handle zero returns, and retain filing evidence.
US Product Taxability Guide: Goods, SaaS & Services (2026)
Classify goods, software, services and bundles for US sales tax using product facts, state definitions, exemption evidence and tested SKU mappings.
Business Use Tax Guide: Purchases, Accruals & Audits (2026)
Find untaxed business purchases, assess use tax, review inventory withdrawals and reconcile accruals without duplicating tax already paid.
EU VAT on Digital Services: B2C, B2B & OSS (2026)
Determine EU digital-services VAT treatment through service classification, B2B status, customer location evidence and the correct OSS reporting scheme.
Global VAT & GST Registration Guide for eCommerce (2026)
Evaluate international VAT and GST registrations by seller establishment, inventory, customer status, turnover tests and marketplace responsibility.
Illinois Sales Tax Guide for Remote Sellers (2026)
A practical Illinois sales tax guide covering the 2026 remote-seller threshold, destination-based ROT, local grocery tax, marketplaces, registration, and filing.
Washington Sales Tax & B&O Guide for Remote Sellers (2026)
A practical Washington guide to the $100,000 threshold, destination sales tax, B&O tax, marketplace deductions, reseller permits, and excise returns.
Colorado Sales Tax Guide for Remote Sellers (2026)
A practical Colorado sales tax guide covering economic nexus, destination sourcing, state-administered and home-rule jurisdictions, SUTS, marketplaces, and filing.
Pennsylvania Sales Tax Guide for Online Sellers (2026)
A practical Pennsylvania guide covering the $100,000 online-seller threshold, taxable sales, marketplace channels, local tax, licensing, and returns.
UK VAT for eCommerce & Overseas Sellers (2026)
A practical UK VAT guide covering overseas sellers, online marketplaces, £135 consignments, imports, customer evidence, returns, and audit controls.
New Zealand GST Guide for Overseas Sellers (2026)
Understand New Zealand’s 15% GST for remote services, low-value imported goods, marketplaces, customer evidence, registration, returns, and records.
Singapore GST Guide for Overseas Vendors (2026)
A practical guide to Singapore’s Overseas Vendor Registration regime, remote services, low-value goods, platforms, customer evidence, filing, and controls.
Japan Consumption Tax for Digital Services (2026)
Understand Japan consumption tax for cross-border digital services, B2C and B2B classification, 2025 platform taxation, invoices, registration, and records.
India GST for eCommerce & Digital Sellers (2026)
A practical India GST guide covering registration, place of supply, e-commerce operators, TCS, OIDAR, invoicing, returns, and reconciliation.
Sales Tax on Clothing & Apparel: 2026 Seller Guide
A practical state-by-state framework for clothing, footwear, accessories, price thresholds, sales tax holidays, rentals, alterations, shipping, and returns.
Sales Tax on Food & Groceries: 2026 Seller Guide
A practical guide to grocery exemptions, prepared food, beverages, supplements, restaurants, delivery, bundles, marketplaces, and product-level tax controls.
California Sales Tax Guide for Businesses (2026)
A practical California sales tax guide covering the 7.25% statewide base rate, district taxes, economic nexus, marketplaces, registration, and filing controls.
Texas Sales Tax Guide for Businesses (2026)
A practical Texas sales tax guide covering the 6.25% state rate, local taxes, the $500,000 remote-seller safe harbor, marketplaces, permits, and returns.
Florida Sales Tax Guide for Businesses (2026)
A practical Florida sales tax guide covering the 6% state rate, county discretionary surtax, remote-sales nexus, marketplaces, registration, and returns.
New York Sales Tax Guide for Businesses (2026)
A practical New York sales tax guide covering the 4% state rate, local destination rates, remote-seller nexus, marketplaces, clothing, and filing.