Freedom251 › Tax Compliance Software
GSTZen
by GSTZen
What GSTZen is
GSTZen provides software for GST return filing, reconciliation, e-invoicing, E-Way Bills, reporting, and compliance management. It supports GST, including CGST, IGST, and UTGST, with automated return filing, sales tax calculation, and API access. Reconciliation reports cover GSTR-1, GSTR-2A, and GSTR-2B, as well as a combined comparison involving GSTR-1, GSTR-2A, GSTR-3B, and GSTR-9. Its Invoice Management System lets recipients accept, reject, or leave supplier invoices pending. Listed e-invoice connections include Tally, SAP, Oracle, Microsoft Dynamics, Excel, and APIs. APIs support e-invoice creation, E-Way Bill workflows, and GSTIN validation; the maker says e-invoice API responses arrive in under 200 ms. Web and API access are listed. GSTZen offers free tools such as GSTIN search, HSN/SAC validation, E-Way Bill utilities, GST calculators, and JSON-to-Excel conversion. Taxpayer pricing pages list a monthly limit of 2,000 documents, with prices per GSTIN and 18% additional GST. The maker serves businesses, enterprises, Chartered Accountants, tax practitioners, and developers.
Who it suits
GSTZen may suit businesses and tax professionals handling GST filing, reconciliation, invoices, and compliance. Its APIs and listed integrations may also fit IT companies and developers building tax workflows.
What it does well
- Automated GST return filing is supported.
- Reports cover multiple GST return types.
- Invoice recipients can accept, reject, or defer invoices.
- APIs support e-invoices, E-Way Bills, and GSTIN validation.
- Free GST tools are available.
What to know first
- Taxpayer plans list a 2,000-document monthly limit.
- Taxpayer pricing adds 18% GST.
Limits
Taxpayer pricing lists a limit of 2,000 documents per month. The Tax Practitioner Performance plan lists 2,000 documents per GSTIN each month, while Enterprise is for more than 50 GSTINs.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Basic | Unlimited users · 2,000 documents/month | On request |
| Pro | Unlimited users · 2,000 documents/month | On request |
| Pro Plus | Unlimited users · 2,000 documents/month | On request |
| GSTIN Number Validator | Validator and GSTIN search tools | Free |
| Taxpayer Basic | GST returns filing · reconciliation reports · unlimited users · PAN level reports · 2,000 documents/month | Free |
| Tax Practitioner JSON to XLS Converter | Pay-as-you-go · Up to 500 records · first 50 records are free | $25, paid once |
| Tax Practitioner API Call | Pay-as-you-go · Per API call | $5, paid once |
| Tax Practitioner API Call Data Transfer | Pay-as-you-go · First 50 records are free | $5,100, paid once |
The first 8 of 13 plans, as gstzen.in lists them, read 22 Sept 2026. The maker's own page has the final word. Every plan
Getting started
- Open the GSTZen website at gstzen.in
- Choose web access or plan an API connection
- Start with the free GSTIN validator or Taxpayer Basic option
- Use the free trial if you want to evaluate the service
- Select a taxpayer, tax-practitioner or enterprise plan that matches your GSTIN and document needs
Verdict
GSTZen brings filing, reconciliation, invoice management, and API workflows into one GST service. Check the applicable plan and document limit before choosing, since several plan prices are not provided here.
Questions
Does GSTZen have a free plan?
Yes. The listed GSTIN Number Validator and Taxpayer Basic plans are free, and the service also offers a free trial.
Which platforms does GSTZen support?
GSTZen is available through web access and APIs.
What GST workflows does it support?
It supports automated return filing, sales-tax calculation, reconciliation, e-invoicing, E-Way Bills, reporting and compliance management.
Which integrations are listed for e-invoicing?
The maker lists Tally, SAP, Oracle, Microsoft Dynamics, Excel and API integrations.
What do the GSTZen APIs provide?
APIs support e-invoice generation, E-Way Bill workflows and GSTIN validation. The e-invoice API page states responses are delivered in under 200 milliseconds.
Who makes GSTZen?
GSTZen is made by GSTZen, headquartered at 4th Floor, Trident Towers, 23, 100 Feet, Ashoka Pillar Road, 2nd Block, Jayanagar, Bengaluru, Karnataka 560011.
Facts from GSTZen's own pages
- 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. · gstzen.in, 11 Oct 2026
- API access
- Yes · gstzen.in, 22 Sept 2026
- Audience
- The maker describes GSTZen as suitable for businesses, enterprises, Chartered Accountants, tax practitioners, and IT companies or developers. · gstzen.in, 11 Oct 2026
- Filing support level
- automated · gstzen.in, 22 Sept 2026
- Free tools
- The site offers free tools including GSTIN search, JSON-to-Excel conversion, HSN/SAC validation, E-Way Bill utilities, and GST calculators. · gstzen.in, 11 Oct 2026
- Headquarters
- 4th Floor, Trident Towers, 23, 100 Feet, Ashoka Pillar Rd, 2nd Block, Jayanagar, Bengaluru, Karnataka 560011 · gstzen.in, 28 Sept 2026
- Integrations
- The maker lists e-invoice integrations with Tally, SAP, Oracle, Microsoft Dynamics, Excel, and APIs. · gstzen.in, 11 Oct 2026
- Invoice management
- Its Invoice Management System lets recipients review supplier invoices and accept, reject, or keep them pending. · gstzen.in, 11 Oct 2026
- Maker
- The site identifies CloudZen Software Labs Pvt. Ltd. as the company operating GSTZen; its footer lists CIN U72200KA2015PTC079734. · gstzen.in, 11 Oct 2026
- Privacy and data
- The privacy policy says uploaded or entered data belongs to the customer and authorizes GSTZen to store it on its servers and databases and communicate with GST portals on the customer's behalf. · gstzen.in, 11 Oct 2026
- Product
- GSTZen provides software for GST return filing, reconciliation, e-invoicing, E-Way Bills, reporting, and compliance management. · gstzen.in, 11 Oct 2026
- Reconciliation
- GSTZen offers reconciliation reports for GSTR-1, GSTR-2A, and GSTR-2B, including a consolidated report comparing GSTR-1, GSTR-2A, GSTR-3B, and GSTR-9 data. · gstzen.in, 11 Oct 2026
- Return filing
- The product supports GST return preparation and filing with data validation checks and annual return auto-population from monthly returns. · gstzen.in, 11 Oct 2026
- Sales tax calculation
- Yes · gstzen.in, 22 Sept 2026
- Security
- The privacy policy says GSTZen takes reasonable precautions and follows industry best practices, but cannot guarantee absolute security of internet transmission or electronic storage. · gstzen.in, 11 Oct 2026
- Support
- The site lists the support email [email protected] and a phone number, +91 7406 441122. · gstzen.in, 11 Oct 2026
- Supported tax types
- GST,including CGST,IGST and UTGST · gstzen.in, 22 Sept 2026
- Usage limit
- The Taxpayer pricing page states a limit of 2,000 documents per month, with prices per GSTIN and 18% additional GST. · gstzen.in, 11 Oct 2026
Where GSTZen stands on Freedom251
- Tax Compliance Software#14 of 105
- GST software#6 of 14