The quick answer
GSTR-1 is the outward-supply statement for applicable regular and casual taxpayers. It reports supply details; preparing the statement is different from paying and declaring summary liability through GSTR-3B. Your monthly or quarterly profile determines the relevant period and workflow.
Start with complete sales records, returns, debit or credit notes and classifications. Dukanam can help prepare and export working records on an eligible plan, but the return must be reviewed and filed through the GST portal or an authorised filing process.
Before you begin
- Active GSTIN, portal access and the authorised signing method.
- Correct filing frequency and tax period, including any pending prior-period requirements.
- Sales register, credit/debit notes, amendments, HSN details and relevant special supplies.
See how the pieces connect
Books
Collect outward-supply records for the period.
Portal
Enter or upload data into applicable tables.
Review
Compare generated summaries with the books.
File
Sign, confirm Filed status and retain acknowledgement.
Work through the steps
Confirm the period and filing profile
Log in at gst.gov.in and open Services → Returns → Returns Dashboard. Select the financial year and period. Check the due date and monthly or quarterly profile shown, including applicable sequential-filing prerequisites.
Reconcile the source sales register
Check invoice numbers, customer GSTINs, place of supply, tax rates, returns and adjustments. Separate relevant supply categories. Resolve duplicate numbers and missing credit notes before preparing the return.
Enter or upload outward-supply details
Open the GSTR-1 tile and use the available online or upload workflow. Populate the applicable tables for your supplies. Use current classification rules rather than an old tutorial’s consumer-invoice threshold.
Resolve errors and complete summaries
Review validation errors, HSN summary and document information where required. Regenerate the summary after changes. Uploaded data or a successful validation message is not the same as a filed return.
Compare the preview with the books
Check taxable value and each tax component against the reconciled register. Review amendments, credit notes and special supply categories separately. Explain genuine differences rather than forcing totals to match.
Sign and verify filing
Follow the portal’s declaration and permitted DSC or EVC steps. Confirm that the return status is Filed and save the acknowledgement and filed statement. Do not stop at draft preview or saved data.
Keep the filing pack
Retain source exports, validation notes, final return and acknowledgement for the period. Use the final outward-supply information when reviewing GSTR-3B, with any legally appropriate adjustments and reconciliation.
A worked example
Reconcile supplies before uploading
Illustrative tax-exclusive sales values. Actual return categories and treatment depend on the supplies.
| Record | Taxable value | Check |
|---|---|---|
| Registered-customer sales | ₹72,000 | GSTIN and invoice particulars |
| Consumer sales | ₹38,000 | Correct applicable category |
| Valid sales credit note | −₹5,000 | Reference and period treatment |
| Net illustrative taxable value | ₹1,05,000 | Explain differences from portal summary |
This is a sales-value illustration, not a complete return. Calculate tax by the actual rates and include all applicable tables and adjustments.
Common mistakes to avoid
- Filing from unreconciled sales exports with duplicate invoices.
- Using outdated table thresholds from an old screenshot.
- Treating upload, save or preview as final filing.
- Assuming GSTR-1 filing itself settles GSTR-3B liability.
Questions you might have
Can Dukanam file GSTR-1 directly?
No. It supports GST preparation and working exports on eligible plans. Review and submit through the GST portal or your authorised filing workflow.
Is GSTR-1 needed in a quiet period?
Applicable taxpayers may still have a filing obligation. Check whether nil filing conditions hold rather than skipping the period because there were no sales.
Dukanam
A smart, low-cost choice for small-business GST billing
Dukanam brings billing, purchases, stock, customer balances, payments and reports together. It is built for Indian small businesses that want clear records without a complicated setup.
Best suited to shops that want connected everyday billing and bookkeeping, web and mobile access, and nine product languages. Choose the plan that includes the features you need.
GST-aware billing and preparation depend on your plan. Review records before filing on the GST portal; Dukanam does not directly submit GST returns, government e-invoices or e-way bills.
Current plans with GST preparation
- Advanced Plan₹299.00 per month
Check annual prices, limits, applicable taxes and checkout terms. Paid plans do not include a free trial.
Sources and further reading
Official rules and portal screens can change. Use the linked authority for the current requirements; the figures in our worked examples are illustrative.