How to use it
- Choose the financial year, return type and taxpayer cadence.
- Select the return period.
- Confirm the current GST portal and notifications before filing.
GST & Tax · Data flow disclosed · Beta
GST Filing Due-date Calendar
Look up a provisional FY 2026-27 GST return reference date with visible freshness status.
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Trust record
Check the method before you rely on the result
- Method
- Select a versioned return/taxpayer rule and construct a reference date for the selected period.
- Reference due date = selected return period + versioned reference day
- Effective period
- Formula-based; no statutory effective period
- Last verified
- 11 August 2026
- Review every 31 days
- Reviewer status
- Named policy and professional reviewer: external review pending
- Privacy
- Inputs and bundled policy data stay in this browser. They are not sent to analytics, a backend, a URL or a log, and are not saved by default.
Important limitations
- Extensions, notifications, taxpayer exceptions and portal status are not inferred.
- The bundle is provisional and remains separately gated until reviewed.
Browse GST & Tax · Methodology · Sources
A quick guide
Use the number with context
The answer is only useful when you know what it includes and what it leaves out.
Formula
Reference due date = selected return period + versioned reference day
The date is a calendar reference, not a filing confirmation or extension notice.
Make it concrete
Worked example
A monthly GSTR-1 period of July 2026 uses the provisional 11 August 2026 reference day.
Boundaries
What this tool does not assume
Limitations
- Extensions, notifications, taxpayer exceptions and portal status are not inferred.
- The bundle is provisional and remains separately gated until reviewed.
Edge cases
- A notification can supersede the bundled day.
- QRMP and regular cadence use different reference rows.
Last reviewed 11 August 2026 · Formula version 1.0
Method & sources
How this result is grounded
The formula is deterministic and runs in your browser. Read the reference below for the method used by this tool.
- GST Portal advisory on the Quarterly Return Monthly Payment scheme
Goods and Services Tax Network · official reference · Checked 11 August 2026
Authority: GST_PORTAL
Questions
Frequently asked
Does this submit a GST return?
No. It only displays a local reference date.
Keep going
Related tools
A related local-first tool for the next step.
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Source register checked 11 August 2026.