# Filing GSTR-1: Prepare GSTR-1

## GSTR-1 Preview

Previewing GSTR-1 means **checking the data you have uploaded in the Sales** tab before filing the return. To preview
GSTR-1, click on the **GSTR-1 tab**, then click **Prepare GSTR-1** and **select the period**. This will display a
**detailed view of the uploaded data in GSTR-1 format**, allowing you to review it before submission. In the preview
tab, you can verify whether **B2B transactions, B2C summary, and the HSN summary or other details** are accurate. For
section-wise verification of the uploaded data in **Excel format**, click the Export button to download the data on
upper right side on prepare GSTR-1 dashboard.

- Note - **The Preview of GSTR-1 is allow one tax period of one GSTIN at a time. You can change the period or GSTIN to
  preview another return.**

## Comparison of Auto-Populated Data from E-invoices

If you have **e-invoicing** and the data is **auto-populated on GST government portal from the e-invoicing system**, you
may want to **reconcile** your **books data with the e-invoicing auto-populated data** on the portal. For this, Octa GST
provides the **Portal Reconciliation button** in the Prepare GSTR-1 Dashboard. To use it, enable the option located at
the left-side corner of the Prepare GSTR-1 dashboard, and the **Portal Reconciliation feature will activated**.

### Step-1 Enable Portal Reco

To enable the **Portal Reconciliation** feature in Octa GST, go to the **Prepare GSTR-1 Dashboard** and click on the
**Portal Reco button** located at the left corner of the screen. This action activates the Portal Reconciliation option.
For reconciliation to work properly, it is **essential that both your sales data and the GST government portal data are
available** in Octa GST. If your sales data is already uploaded but the government portal data is not, you must upload
the portal data first. The process of uploading portal data is the same as uploading filed GSTR-1 data into Octa GST
(follow step-2).

### Step-2 Filing Dashboard

First, navigate to the **Filing Dashboard** in Octa GST. To do this, go to the GSTR-1 tab; this will open the GSTR-1
filing dashboard for all periods. In the dashboard, when you move your mouse over any period, you can see whether the
return has been filed or if data is available or not .to upload the data in the next step is to download the JSON file
(covered in the next step).

- **Filing Dashboard** 

### Step-3 Download JSON files

To download the JSON file in the GSTR-1 dashboard, click the JSON button. A login tab will open, where you need to click
the Login button and enter your GST government portal credentials (ID and password). Once logged in, the screen for JSON
generation will appear. Octa GST provides the facility to download the JSON file for the entire financial year, and in
this tab, Octa GST sends the generation request to the government portal. After a short time, once the JSON is
generated, refresh the page, and you will see the Download option to save the JSON file.

### Step-4 Adding JSON files

To add data into Octa GST, go to the GSTR-1 dashboard and click the Import button. Then click Select and choose the JSON
file(s) from your folder — multiple files can be selected at once. After selecting the file(s), click Open, and then
click the Continue button to proceed with the import.

### Pull data (using OTP)

For better and faster connectivity and to increase efficiency, Octa GST provides direct connectivity with the government
portal, allowing data to be pulled using OTP authentication. When the Portal Reco button is enabled, a Pull button
appears on the right side of the dashboard. By clicking the Pull button, Octa GST fetches the data directly from the
government portal, eliminating the need for the traditional JSON download and upload process.

### Step-5 Reconcile Sale Data

Now we have uploaded both the data ( Sales data from books and portal auto-populate data) and for reconciliation we have
to nevigate to prepare GSTR-1 Dashboard. and in dashboard the Portal Reco is enabled. now we have to click to Reconcile
Button on right side of the dashboard. and reconciliation will done by system and now refresh the the page. now we can see

-  **Match** - Match indicates that a sales document is **fully aligned with its corresponding Portal entry.** This means the
  document is completely identified, and all details—such as invoice number, date, taxable value, and customer
  details—exactly correspond between the Sales Register and Portal data. When a document is fully matched, there are no
  discrepancies, ensuring the **record is accurate and verified.**

- **Almost Match** - Almost Match, also called **smart matching,** occurs when a sales document and the corresponding Portal
  entry are exactly identical but **Minor differences**—such as **rounding off amounts, small discrepancies in invoice
  details,** or variations in entry formats—may trigger this. The smart matching feature helps identify these near
  matches, allowing taxpayers to quickly **verify and reconcile** documents without manually checking each **small
  discrepancy.**

- **Mismatch** - Mismatch means that a sales document does not match the corresponding Portal document. This indicates that
  the **system could not find proper alignment** between the invoice in the Sales Register and its corresponding Portal
  entry.

- **Missing in Portal** - Missing in Portal **(shown in orange)** indicates that a sales document exists in the Sales Register
  but does not have a corresponding entry in the Portal. This means the invoice has been **recorded in the books but is
  not reflected in the government portal data.**

- **Missing in Sales** - Missing in Sales Register **(shown in purple)** indicates that a Portal document exists in the
  government portal but does not have a corresponding entry in the Sales Register. This means the invoice is **recorded in
  the Portal but is absent in the books of the taxpayer.**

You can also **export the comparison in Excel** by clicking on the **Reco Report button**. Once generated, the report
will be available in the Robot tab, where you can download it for further analysis.

## Alter the Books Data According to Govt portal data

After completing the reconciliation, we focus on **Mismatch and Missing in Books records** - documents that are **either not
matched or not available in the books**. Upon verification, if you found the data appearing in the **Portal is correct
and you want to update the books data uploaded in Octa GST**, the system provides a Reco tab located just below the
Portal Reco button. Here, you can **filter invoices by matching status**.

- To update **mismatched record**, filter by Mismatch, click the **Edit button**, and update the record accordingly.

- To add a document **missing in books**, filter by Missing in Books, click the **Plus (+) button** on the right side of
  the Portal document, and then click Save. The **document will automatically be added** to the books Data in Octa GST.