Reconcile with Purchase Register

In order to avoid ITC reversal because of any discrepancies in data reported by supplier and receiver, it is very important for you to carefully match the data reported by your suppliers with your own purchase documents. Matching is also very important to ensure that you don't miss any ITC claim.

Depending on the nature of business, the number of purchase documents can be anything from few to thousands or even more. Even in a single document, there are many details like Place of Supply, Date, Reverse Charge applicability, Total Value etc. All these details have to be examined carefully so that any incorrect data reporting can be avoided.

As the number of purchase document increases, it becomes infeasible to manually compare all these details. That's why Octa GST provides auto-matching functionality, which can compare thousands of documents with-in seconds and presents the results so that you can take appropriate actions on any differences.

#Add Purchase & GSTR-2A Data

In order to do matching and reconciliation of GSTR-2A data with purchase register, naturally the first step is to add both purchase and GSTR-2A data to Octa GST. If you haven't done it yet, please refer below articles for same:

• Import Purchase Data from Excel/CSV files →
• Import Purchase Data from Tally →
• Adding GSTR-2A Data →

#Matching Configuration

To match the purchase data with GSTR-2A data, simply:

• Open the GSTR-2A page
• Click Match & Reconcile button

This will open a matching/reconciliation configuration page:

You can select the following parameters related to reconciliation

Parameter	Description
GSTIN	Your business GSTIN which you would like to reconcile
Period	The period you would like to reconcile. You can select month, quarter, financial year, or even a other custom period. The documents in your purchase register that belong to this period, will be selected for reconciliation
Period Reference	This specified the information which should be used as period reference. If you selected Return Period, then return period in your purchase will be used as the source of period. If you select Document Date, then document date (Invoice Date) will be used as the source of period.
Tax Summary - Include Reverse Charge	Octa GST reconciliation shows a supplier summary (explained below). This parameter specified whether to include GST subject to reverse charge, in the summary calculation.
Tax Summary - Include Not-Filed Supplier Data	Octa GST reconciliation shows a supplier summary (explained below). This parameter specified whether to include GST in documents which are uploaded but not yet filed by supplier.
Ignore Difference	Octa GST shows the matching status of documents (explained below). This parameter specifies the difference up to which should be considered as insignificant. If the differece is below this parameter, Octa GST will show Almost Matching status. If the difference is more than this parameter, Octa GST will show Not Matching status.
Basic Linking	Specifies whether to use Basic Linking algorithm for linking invoices. Basic linking is explained in detail below
Smart Linking	Specifies whether to use Smart Linking algorithm for linking invoices. Smart linking is explained in detail below

#Basic Linking

Basic linking algorithm uses the following parameters to link the related documents in purchase and GSTR-2A data:

• Supplier GSTIN
• Document Type
• Document Number
• Financial Year

If basic linking is selected, Octa GST will link all such documents for which above parameters match exactly.

#Smart Linking

If the data quality of both purchase and GSTR-2A data is very high, then basic linking should be able to successfully link related documents in purchase and GSTR-2A data. But in pracice, it is extremely common to have mistakes in document numbers. This might be the case with your purchase data. Even if you maintain very high quality data, your suppliers may change (append or prepend) the document number while uploading to GST Portal in GSTR-1.

To address this common issue, Octa GST used Smart Linking algorithm which matches the related documents based on the similarity of data in purchase and GSTR-2A. The following parameters are used to calculate a similarity score:

• Document Number
• Document Date
• Taxable Value
• Tax Amounts

If this similarity score is high, Octa GST will link such documents automatically. This saves a lot of time and effort which would otherwise have been spent in manually linking the invoices.

#Reconciliation

Octa GST supports bulk actions so that you can reconcile a large number of documents in few clicks only. At the same time, it provides fine controls so that you can analyse individual documents if needed and take appropriate actions. This design puts you in control without compromising the productivity.

When you start the reconciliation, Octa GST will first show the supplier-wise summary. This screen may be used to decide that which supplier you need to focus on. The tax difference meter will show the amount of difference in a graphical manner. So in one simple glance, you will know the suppliers for which there is a large difference in aggregate tax amount. You can double click on any supplier to view the reconciliation screen. If you wish to reconcile all the suppliers in one go, you may click on All Suppliers button.

Depending on the match result, you can take appropriate actions on each purchase document.

• Accept: This action means you agree with the data reported by your supplier.
• Reject: This action indicates you don't agree with the data reported by supplier.
• No Action: This action indicates you would like to reconcile this invoice/document later.

Octa GST will automatically match the purchase documents and show the results. Depending on the details, there are five possible match results:

#Exporting Mismatch Report

Once the reconciliation is done, you can click on Mismatch Report button to export the data to an Excel file. You can also click on Excel button to export the mismatch report for an individual supplier.