EUVAT.app – B2B Reverse Tax vs Sidr ‑ Sales Tax Automationfor Shopify (2026)
EUVAT.app – B2B Reverse Tax and Sidr ‑ Sales Tax Automation are both Shopify apps in the Finances and Taxes categories, but they cater to fundamentally different needs. EUVAT.app focuses on automating VAT handling specifically for EU B2B transactions, enabling features like VIES validation, reverse charge application, and handling both net and gross pricing. It supports both EU and non-EU sellers, accommodating OSS and non-OSS setups. In contrast, Sidr ‑ Sales Tax Automation is designed for US-based sales tax compliance, providing services like nexus tracking, registration, reporting, and automatic filing of sales tax returns to state websites. Sidr emphasizes a fully managed solution, simplifying US sales tax compliance for merchants.
At a Glance
EUVAT.app – B2B Reverse Tax
3 reviews
Sidr ‑ Sales Tax Automation
52 reviews
Detailed Overview
EUVAT.app – B2B Reverse Tax
Validate EU VAT numbers and apply reverse-charge VAT automatically for B2B transactions.
Key Features
- VIES validation & reverse charge for eligible B2B orders
- Net & gross pricing support; auto net-from-gross by buyer country
- Collect & validate VAT at checkout (Shopify Plus only)
- Works for EU and non-EU sellers; supports OSS and non-OSS setups.
- Persistent customer VAT status; auto tax-exempt on future orders.
Sidr ‑ Sales Tax Automation
Sidr Tax is a US-based fully managed US sales tax solution. Automate your sales tax returns.
Key Features
- Autofile: Fully automate your sales tax filing and always stay on schedule.
- Economic Nexus Dashboard: Know exactly when you need to start collecting taxes.
- Accurate Tax Reports: Sales tax calculations always up to date and export ready.
- Registration: Obtain sales tax permit for you at the right time.
- Chat Support: Have questions? Chat with us and we respond as soon as we can.
Feature Comparison
| Rating | 3.6/5 | 5/5 |
Rating EUVAT.app – B2B Reverse Tax3.6/5 Sidr ‑ Sales Tax Automation5/5 | ||
| Reviews | 3 | 52 |
Reviews EUVAT.app – B2B Reverse Tax3 Sidr ‑ Sales Tax Automation52 | ||
| Target Market | EU B2B sellers | US sellers |
Target Market EUVAT.app – B2B Reverse TaxEU B2B sellers Sidr ‑ Sales Tax AutomationUS sellers | ||
| Tax Type | VAT | Sales Tax |
Tax Type EUVAT.app – B2B Reverse TaxVAT Sidr ‑ Sales Tax AutomationSales Tax | ||
| Automation Focus | VAT validation & reverse charge | Filing & reporting |
Automation Focus EUVAT.app – B2B Reverse TaxVAT validation & reverse charge Sidr ‑ Sales Tax AutomationFiling & reporting | ||
| Pricing Support | Net & Gross | Actual Tax Collected |
Pricing Support EUVAT.app – B2B Reverse TaxNet & Gross Sidr ‑ Sales Tax AutomationActual Tax Collected | ||
| Customer Base Location | Europe | United States |
Customer Base Location EUVAT.app – B2B Reverse TaxEurope Sidr ‑ Sales Tax AutomationUnited States | ||
| Support Type | Not Explicitly Stated | Chat and email |
Support Type EUVAT.app – B2B Reverse TaxNot Explicitly Stated Sidr ‑ Sales Tax AutomationChat and email | ||
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Our Verdict
The choice between EUVAT.app and Sidr Tax depends entirely on the geographical location and business model of the Shopify merchant. If you are selling to businesses within the European Union and need to automate VAT handling (especially reverse charge for B2B), EUVAT.app is the clear choice. However, its low review count suggests a cautious approach, requiring thorough testing. For merchants operating in the United States who need assistance with sales tax compliance – nexus tracking, filing, and reporting – Sidr Tax is the more appropriate solution, offering a fully managed service and boasting significantly more positive reviews. Sidr tax automates a difficult process for merchants who are not familiar with US tax law.
Common Questions
Which app handles sales tax for both the US and the EU?
Neither app handles sales tax for both regions. EUVAT.app is solely focused on EU VAT, while Sidr Tax is exclusively for US sales tax.
Does either app help with determining where I need to collect taxes (nexus/establishment)?
Sidr Tax includes an Economic Nexus Dashboard to help determine when you need to start collecting US sales taxes. EUVAT.app does not explicitly mention a feature for determining VAT registration obligations.
Which app is easier to use for a beginner in taxation?
Sidr Tax aims to be easier for beginners in US Sales Tax since it offers a fully managed solution, including registration and filing automation. EUVAT.app requires a foundational understanding of EU VAT regulations to configure correctly.
Which app offers more comprehensive support?
Sidr Tax explicitly provides timely chat and email support. The support options for EUVAT.app are not explicitly described in the provided information.
Which app is more suitable for a high-volume business?
Sidr Tax, with its focus on automation and reporting, and a higher number of positive reviews, may be more suitable for high-volume businesses dealing with US sales tax. The lower review count for EUVAT.app might make it riskier for high-volume operations without thorough testing.
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