Tax Registration Shopify Apps – Market Share Breakdown
(Updated September 2026) See which tax registration Shopify apps dominate installs and how their share has shifted over time. This keyword page shows the full market share table, monthly share trends for the leaders, and a country-level breakdown so you can compare global vs regional dominance.
Tax Registration Shopify Apps — Full Market Share Table
All tracked tax registration Shopify apps ranked by current install share, with change vs 30 days ago and Leader / Climbing / Declining / Stable status — filterable by country and date range.
| # | App | Market Share | Change | Status |
|---|---|---|---|---|
| 1 |  TaxCloud Sales Tax Automation | 29.90% | 0.56 | Declining |
| 2 |  Sales Tax Automation by TaxRex | 28.80% | 14.72 | Declining |
| 3 |  Numeral Sales Tax | 20.67% | 9.06 | Climbing |
| 4 |  Sales Tax Filings ‑ BreezyFile | 13.78% | 4.47 | Climbing |
| 5 |  F: PDF Invoice Generator | 2.20% | 0.75 | Climbing |
| 6 |  Sidr ‑ Sales Tax Automation | 1.86% | 1.43 | Climbing |
| 7 |  Bookkeep Accounting+Inventory | 1.65% | 0.34 | Declining |
| 8 |  Fordeer: PDF Invoice Generator | 0.39% | 0.26 | Climbing |
| 9 |  Singleton | Dual Price Display | 0.19% | 0.07 | Climbing |
| 10 |  Kintsugi Sales Tax Automation | 0.17% | 0.01 | Declining |
Showing 1-10 out of 24
Key Insights:
- TaxCloud Sales Tax Automation holds 29.9% share of tax registration app installs — 1.1pp ahead of Sales Tax Automation by TaxRex (28.8%).
- Top 3 apps (TaxCloud Sales Tax Automation, Sales Tax Automation by TaxRex, Numeral Sales Tax) account for 79.4% of all tax registration install share — a fragmented market.
- Numeral Sales Tax is gaining share fastest this month (+9.06pp) — the largest single gainer among the top tax registration apps by share.
- Sales Tax Automation by TaxRex is losing share fastest (-14.72pp) — could indicate a churning user base or a stronger challenger gaining ground.
Tax Registration Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 tax registration Shopify apps over the past year — see who's gaining or losing install share month by month.
Charts Data
| App | Apr 2026 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 |
|---|---|---|---|---|---|---|
| Numeral Sales Tax | — | 1.8% | 11.6%9.73 | 24.8%13.27 | 63.9%39.08 | 63.1%0.8 |
| Sales Tax Automation by TaxRex | — | 53.5% | 42.3%11.17 | 27.9%14.37 | 15.9%12.06 | 19.5%3.65 |
| TaxCloud Sales Tax Automation | — | 22.0% | 31.3%9.36 | 29.9%1.42 | 9.0%20.95 | 7.1%1.87 |
| Sales Tax Filings ‑ BreezyFile | — | 11.4% | 9.6%1.85 | 10.7%1.11 | 8.0%2.68 | 5.9%2.1 |
| Sidr ‑ Sales Tax Automation | — | 0.2% | 0.5%0.25 | 1.8%1.35 | 1.0%0.84 | 2.0%1.04 |
Key Insights:
- Numeral Sales Tax's share expanded from 1.8% → 63.1% over the charted period.
- Of the top 5 tracked tax registration apps, 2 grew share and 3 lost share — leader is widening the gap.
Top Tax Registration Shopify Apps by Country
Per-country market share rankings for tax registration Shopify apps across 5 markets — see which apps lead in each country and where regional leaders diverge from the global leader.
| # | 🌎 Worldwide |  United States |  India |  China |  United Kingdom |
|---|---|---|---|---|---|
| 1 | | | | | |
| 2 | | | | |  |
| 3 | | | | |  |
| 4 | | | | | |
| 5 | | | | | |
Key Insights:
- Sales Tax Automation by TaxRex leads in United States; Fordeer: PDF Invoice Generator leads in India.
- TaxCloud Sales Tax Automation leads worldwide, but 4 of 4 tracked markets crown a different leader — Sales Tax Automation by TaxRex in United States, Fordeer: PDF Invoice Generator in India, and others.
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Top 5 Apps in Tax Registration
- Sales Tax Filings ‑ BreezyFile — Leads tax registration apps with 5.9% install share, rated 5.0★ — losing share this month.
- Sales Tax Automation by TaxRex — Holds 19.5% of tax registration app install share, rated 5.0★ — gaining share this month.
- Numeral Sales Tax — Holds 63.1% of tax registration app install share, rated 4.5★ — losing share this month.
- TaxCloud Sales Tax Automation — Holds 7.1% of tax registration app install share, rated 4.8★ — losing share this month.
- Sidr ‑ Sales Tax Automation — Holds 2.0% of tax registration app install share, rated 5.0★ — gaining share this month.
Tax Registration Shopify Apps — Frequently Asked Questions
1. Which tax registration app has the highest market share on Shopify?
TaxCloud Sales Tax Automation ranks #1 by share among tax registration apps at 29.9%, but the market is fragmented — multiple apps capture meaningful share. Compare the top 5 on features and pricing before deciding.
2. How is market share calculated for tax registration Shopify apps?
For tax registration (a keyword page), market share is rank-weighted — apps at position #1 carry roughly 40× the weight of apps at position #22, and apps beyond #22 are excluded. Each app's weighted score is divided by the total weighted score across the keyword to give the share %. This reflects Shopify search behaviour: most installs come from the top of the results.
3. Which tax registration apps are gaining market share on Shopify?
Numeral Sales Tax is gaining tax registration app market share fastest this month, up +9.06pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which tax registration apps are losing market share on Shopify?
Sales Tax Automation by TaxRex has lost the most market share this month among tax registration apps (-14.72pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most tax registration Shopify app installs?
United States drives the largest share of tax registration app installs at 96.2%, followed by Canada at 1.5% and United Kingdom at 0.8%. Use the country picker on the third card to compare market leaders by country.
6. How many tax registration apps does ShopDigest track on Shopify?
ShopDigest tracks 96 tax registration apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
7. Why does the highest-share tax registration app differ from the #1 ranked app?
Rank reflects an app's current position in the Shopify App Store under tax registration (driven by Shopify's own algorithm), while market share on ShopDigest is estimated from review counts and other factors as a proxy for active installs. The two metrics move on independent dynamics, so the highest-share app and the #1-ranked app are not always the same — and a divergence between them is worth noting rather than assuming one will pull the other along. For tax registration, TaxCloud Sales Tax Automation leads on share; see the rankings tab for who currently holds #1 position.
