Avalara AvaTax vs GSTZen
Avalara AvaTax
avalara.comGSTZen
gstzen.inSide by side
| Figure | Avalara AvaTax | GSTZen |
|---|---|---|
| Price from | $58.25/mo | Free |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 9 | 13 |
| Spec score · Tax Compliance Software | 8.6 (#7) | 8.1 (#24) |
| API | The AvaTax REST API supports tax calculation, document modification, and address validation; the page also describes custom integrations through the API. | GSTZen provides APIs for e-invoice generation, E-Way Bill workflows, and GSTIN validation; its e-invoice API page says responses are delivered in under 200 ms. |
| API access | Yes | Yes |
| Filing support level | automated | automated |
| Headquarters | Seattle, Washington | 4th Floor, Trident Towers, 23, 100 Feet, Ashoka Pillar Rd, 2nd Block, Jayanagar, Bengaluru, Karnataka 560011 |
| Integrations | Avalara states it has more than 1,400 signed partner integrations and names Shopify, NetSuite, QuickBooks, Sage, Microsoft Dynamics 365, SAP, Adobe Commerce, BigCommerce, WooCommerce, Salesforce, and Oracle among them. | The maker lists e-invoice integrations with Tally, SAP, Oracle, Microsoft Dynamics, Excel, and APIs. |
| Return filing | Yes | The product supports GST return preparation and filing with data validation checks and annual return auto-population from monthly returns. |
| Sales tax calculation | Yes | Yes |
| Security | Avalara says its global AvaTax platform has achieved SOC 2 Type 2 compliance. | The privacy policy says GSTZen takes reasonable precautions and follows industry best practices, but cannot guarantee absolute security of internet transmission or electronic storage. |
| Support | Avalara describes support plans with Standard, Priority, and Enterprise options; stated initial response SLAs are 24 hours, 8 hours, and 1 hour respectively, and Enterprise Support is available 24/7. | The site lists the support email [email protected] and a phone number, +91 7406 441122. |
| Supported tax types | sales tax,consumer use tax,VAT,communications tax,occupancy and lodging tax,excise tax | GST,including CGST,IGST and UTGST |
Plans
Avalara AvaTax
- Core Compliance$79 a month
- Core Compliance + SST Services$69 a month
- CustomPriced on request
- Tax Calculation and Returns Compliance Package$699 a year
- Tax Calculation (AvaTax)Priced on request
- Core Compliance + SST Services Monthly$69 a month
- Core Compliance Monthly$79 a month
- Core Compliance + SST Services Annual$699 a year
- Core Compliance Annual$799 a year
GSTZen
- BasicPrice not published
- ProPrice not published
- Pro PlusPrice not published
- GSTIN Number ValidatorFree
- Taxpayer BasicFree
- Tax Practitioner API Call$5, paid once
- Tax Practitioner JSON to XLS Converter$25, paid once
- Tax Practitioner API Call Data Transfer$5,100, paid once
- Taxpayer ProPriced on request
- Taxpayer Pro PlusPriced on request
In their own words
Avalara AvaTax
Avalara AvaTax calculates tax in real time for sales and purchasing workflows. It covers sales tax, consumer use tax, VAT, communications tax, occupancy and lodging tax, and excise tax, and supports automated return filing and tax registration. Address validation uses geospatial technology to match transactions to tax regions rather than relying on ZIP codes. AvaTax connects with ecommerce, ERP, accounting, sales, and purchasing systems, and its REST API supports calculation, document modification, and address validation. Product taxability codes, AI-assisted item classification, custom rules, exemption certificate management, and jurisdiction-specific tax research support tax decisions. Reporting includes dashboards, natural-language search, and audit-ready trails. The service is available through web and API, with integrations including Shopify, NetSuite, QuickBooks, SAP, and Salesforce. Core Compliance costs $79 per month; Core Compliance + SST Services costs $69 per month for qualifying sellers. Qualified sellers may receive state-funded services in up to 25 states. Pricing also varies by plan and transaction volume.