Zamp Tax vs Tax Rex ‑ Sales Tax Automation
Side-by-side comparison · 24 data points
Tax Rex ‑ Sales Tax Automation
US State Sales Tax return Reports & Automated Filing for your store. Easy, Accurate & Time Saving!!!
ShopifyFree trial available
At a glance
| Metric | Tax Rex ‑ Sales Tax Automation | Zamp Tax |
|---|---|---|
| Rating | 5.0 ★ | — |
| Total reviews | 109 | 0 |
| Free plan | Yes | Yes |
| Pricing | Free trial available | Free |
| Built for Shopify | — | — |
| Pricing tiers | 4 tiers | — |
| Listed features | 5 | 5 |
| Languages | 1 supported | 1 supported |
| Listed since | Sep 2021 | Apr 2026 |
AppRanks verdict
Generated from live data on this pageBased on the data on this page, Tax Rex ‑ Sales Tax Automation is the stronger choice for most Shopify App Store merchants — 5.0★ vs Zamp Tax's 0.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base. Pricing entry tiers: Tax Rex ‑ Sales Tax Automation at Free trial available, Zamp Tax at Free. Check each app's tier structure for the capacity limits you actually need before deciding — the headline number is the same shape, but the gating shape per tier (apps, orders, integrations) varies. Tax Rex ‑ Sales Tax Automation has the larger user base (109 reviews vs 0), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Zamp Tax's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat. Recommended by store size: small/early-stage merchants who need fast install and low risk should default to Tax Rex ‑ Sales Tax Automation; mid-market and enterprise merchants with specific feature requirements should evaluate both — Zamp Tax's 0-review base may include the workflow context that matches your specific use case better than Tax Rex ‑ Sales Tax Automation's broader-but-shallower coverage. This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Shopify App Store listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: Tax Rex ‑ Sales Tax Automation audit • Zamp Tax audit
1. Listing metadata
Field-level data| Tax Rex ‑ Sales Tax Automation | Zamp Tax | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
2. Pricing & plans
Listed prices · monthly · USDTier
Tax Rex ‑ Sales Tax Automation
Zamp Tax
Paid #1
STARTUP
10
- Plan covers 200 orders / month
- $0.05 for every additional order.
- State Nexus wise sales reports
- Economic Nexus Analysis Report
- Email Support
—
Paid #2
GROWTH
20
- Plan covers 500 orders / month
- $0.04 for additional order
- State wise reports
- Economic Nexus Analysis Report
- Email Support
- Multi-store support
—
Paid #3
ADVANCED
30
- Plan covers 1500 orders / month
- $0.02 for additional order
- State wise reports
- Economic Nexus Analysis Dashboard
- Email Support
- Multi-store support
—
Paid #4
ENTERPRISE
100
- Plan covers 10000 orders / month
- $0.01 for additional order
- State wise reports
- Economic Nexus Analysis Report
- Email Support
- Multi-store support
—
3. Features
As listed by each developerTax Rex ‑ Sales Tax Automation
- Timely Autofile: Ensure on-time tax return filings while you focus on business
- Accurate Tax Reports: Precise sales tax reports tailored to state's requirements
- Economic Nexus Alerts: Stay informed on new state nexus thresholds
- Effortless State Registration: Simplified new state registration for compliance
- Ability to Ignore orders imported from Marketplaces like Amazon, Ebay, etc
Zamp Tax
- View tax totals by product category with visual charts
- Expand any product to see jurisdiction breakdowns
- Search orders by order number
- View shipping tax calculated separately
- Quick link to original Shopify order
4. Categories & rankings
Shared categories on the same row · in-category position inline5. Category features
Marketplace-curated features per categoryTaxes1 shared · 12 total
Tax Rex ‑ Sales Tax Automation
- Tax rates
- Liability calculation
- Threshold tracking
- Exemption managment
- Tax registration
- US (Sales tax)
- Compliance reporting
- Data export
- Local tax returns
- Multi-state filing
- —Multi-currency
- —Rate management
Zamp Tax
- Tax rates
- —Liability calculation
- —Threshold tracking
- —Exemption managment
- —Tax registration
- —US (Sales tax)
- —Compliance reporting
- —Data export
- —Local tax returns
- —Multi-state filing
- Multi-currency
- Rate management
5. Search rankings
Top 5 keywords · shared rankings prioritized| Keyword | Tax Rex ‑ Sales Tax Automation | Zamp Tax |
|---|---|---|
| registration | #10 | Not ranked |
| customer service automation | #18 | Not ranked |
| customer support automation | #22 | Not ranked |
9. App details
Long-form description · keyword frequencyTax Rex ‑ Sales Tax Automation
Empower your Shopify e-commerce business with Tax Rex - our seamless all-in-one sales tax solution. From crafting accurate sales tax reports to timely filing on state portals, we've got you covered. Our economic nexus dashboard ensures you never miss a new state's threshold, helping you register in new US states with ease. Focus on growth; we'll handle the tax headaches. Simplify tax compliance today. TaxRex will generate reports based on the taxes already collected in Shopify.
Top keywords
- tax5×6.58%
- reports2×2.63%
- sales2×2.63%
- sales tax2×2.63%
- shopify2×2.63%
Zamp Tax
See exactly how sales tax is calculated. Zamp breaks down every order by category and product, maps the tax jurisdiction, and lets you search by order number for instant answers. Built for merchants who need to know, not guess.
Top keywords
- order2×5.13%
- tax2×5.13%
Frequently asked
Common questions about this comparisonIs Tax Rex ‑ Sales Tax Automation or Zamp Tax cheaper?
Both Tax Rex ‑ Sales Tax Automation and Zamp Tax offer paid plans only. Tax Rex ‑ Sales Tax Automation starts at Free trial available; Zamp Tax starts at Free. Compare the per-tier features in the Pricing section above before committing.
Should I choose Tax Rex ‑ Sales Tax Automation or Zamp Tax?
It depends on what you're optimizing for. Tax Rex ‑ Sales Tax Automation fits better if you prioritize rating consistency; Zamp Tax is the call if you need the larger user base. Read both apps' detail pages on AppRanks for the full feature breakdown, install counts, and recent listing changes.
Which is faster to set up, Tax Rex ‑ Sales Tax Automation or Zamp Tax?
Both apps are one-click installs from the Shopify App Store marketplace. Tax Rex ‑ Sales Tax Automation has more onboarding documentation maturity (109 reviews vs 0), which usually translates to better-tested setup wizards and quicker time-to-value. AppRanks doesn't measure setup time directly — read the recent reviews on each app's detail page for merchant-reported install experience.
Which works better for small vs large Shopify App Store stores?
Tax Rex ‑ Sales Tax Automation typically suits early-stage and growth-mode stores based on its review-base composition (109 reviews). Zamp Tax aligns more with early-stage and growth-mode stores (0 reviews). Larger review bases generally mean the app has been load-tested at scale — relevant if you're processing high order volume or handling enterprise compliance requirements.
Can I migrate data between Tax Rex ‑ Sales Tax Automation and Zamp Tax?
Migration support varies by app and category. Tax Rex ‑ Sales Tax Automation and Zamp Tax both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Zamp Tax" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
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