OO ‑ EU Tax exemption vs Sidr ‑ Sales Tax Automationfor Shopify (2026)
OO ‑ EU Tax exemption and Sidr ‑ Sales Tax Automation are both 5-star rated Shopify apps in the Finances and Taxes categories, but they cater to vastly different needs and geographic locations. OO ‑ EU Tax exemption focuses on automating EU VAT ID validation and tax exemption for B2B sales within the European Union. Sidr ‑ Sales Tax Automation, on the other hand, is a US-based solution designed for automating US sales tax reporting and filing, including nexus tracking and registration. The primary differentiator lies in their geographical focus and the type of tax they handle. OO ‑ EU Tax exemption streamlines VAT compliance for merchants selling to other EU businesses, while Sidr ‑ Sales Tax Automation simplifies US sales tax obligations. OO ‑ EU Tax exemption emphasizes ease of use, customization, and integration, whereas Sidr ‑ Sales Tax Automation highlights a fully managed service with features like auto-filing and economic nexus dashboards.
At a Glance
OO ‑ EU Tax exemption
6 reviews
Sidr ‑ Sales Tax Automation
52 reviews
Detailed Overview
OO ‑ EU Tax exemption
VAT ID validation & automatic tax exemption, boosting merchant efficiency and European B2B sales!
Key Features
- Automatic EU Tax exemption
- VAT validation via the official VIES platform
- Fully translatable and customizable
- Easy to install and use
- Extensive integration options (e.g. for invoices)
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 | 5/5 | 5/5 |
Rating OO ‑ EU Tax exemption5/5 Sidr ‑ Sales Tax Automation5/5 | ||
| Reviews | 6 | 52 |
Reviews OO ‑ EU Tax exemption6 Sidr ‑ Sales Tax Automation52 | ||
| Geographical Focus | EU | US |
Geographical Focus OO ‑ EU Tax exemptionEU Sidr ‑ Sales Tax AutomationUS | ||
| Tax Type | VAT | Sales Tax |
Tax Type OO ‑ EU Tax exemptionVAT Sidr ‑ Sales Tax AutomationSales Tax | ||
| Target Merchant | EU merchants selling B2B | US merchants |
Target Merchant OO ‑ EU Tax exemptionEU merchants selling B2B Sidr ‑ Sales Tax AutomationUS merchants | ||
| Key Benefit | Automated EU VAT exemption | Automated US sales tax filing |
Key Benefit OO ‑ EU Tax exemptionAutomated EU VAT exemption Sidr ‑ Sales Tax AutomationAutomated US sales tax filing | ||
| Customer Support | Not specified, but implied by 'Easy to install and use' | Chat and email support |
Customer Support OO ‑ EU Tax exemptionNot specified, but implied by 'Easy to install and use' Sidr ‑ Sales Tax AutomationChat and email support | ||
| Service Type | Self-service | Fully managed |
Service Type OO ‑ EU Tax exemptionSelf-service Sidr ‑ Sales Tax AutomationFully managed | ||
Our Verdict
Choosing between OO ‑ EU Tax exemption and Sidr ‑ Sales Tax Automation depends entirely on your business location and target market. If you are an EU-based merchant selling to other EU businesses and need help with VAT compliance, OO ‑ EU Tax exemption is the clear choice. However, if you are a merchant operating in the US and need to manage US sales tax obligations, Sidr ‑ Sales Tax Automation is the better option, especially given its fully managed service and US-specific features. While both apps have 5-star ratings, Sidr has significantly more reviews, which may provide more confidence for some merchants. Nevertheless, the low review count of OO ‑ EU Tax exemption does not detract from its feature list, given they both serve totally different purposes.
Common Questions
Which app is easier to use?
OO ‑ EU Tax exemption emphasizes ease of use and customization, suggesting a simpler, more direct setup. Sidr ‑ Sales Tax Automation, while offering a fully managed service, might involve a more complex initial setup to integrate with your existing systems for automatic sales tax reporting and filing.
Which app offers better customer support?
Sidr ‑ Sales Tax Automation explicitly mentions chat and email support. OO ‑ EU Tax exemption doesn't detail support options, but the 'easy to install and use' suggests a user-friendly interface that might require less support.
Which app is more suitable for a small business?
Both apps cater to businesses of all sizes. OO ‑ EU Tax exemption's streamlined VAT exemption process could be particularly valuable for small EU businesses selling B2B. Sidr ‑ Sales Tax Automation's automated filing and nexus tracking are useful for any US business needing sales tax compliance, regardless of size.
Which app is better for handling complex tax scenarios?
Sidr ‑ Sales Tax Automation, with its nexus tracking, registration, and auto-filing features, appears better equipped to handle complex US sales tax scenarios, especially those involving economic nexus and multi-state compliance. OO ‑ EU Tax exemption focuses on a specific type of EU tax exemption.
Can I use both apps simultaneously?
Yes, if your business requires both EU VAT exemption and US sales tax compliance. OO ‑ EU Tax exemption handles VAT for EU B2B sales, while Sidr ‑ Sales Tax Automation manages US sales tax obligations.
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