# Fetch GSTR-2B Input Tax Credit Statements API | FastKYC

> Retrieve GSTR-2B ITC and reversal document details by GSTIN and return period, for accurate input tax credit computation and GST reconciliation.

Source: https://www.fastkyc.com/apis/get-2b-data/

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[Identity APIs](/apis/identity/)

# Get 2B Data API

Retrieve GSTR-2B ITC and reversal document details by GSTIN and return period, for accurate input tax credit computation and GST reconciliation.

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Category

[Identity APIs](/apis/identity/)

Built for

-   [Lending & NBFC](/industries/lending/)
-   [Marketplaces & E-commerce](/industries/marketplaces/)

## What the Get 2B Data API does

Get 2B Data returns GSTR-2B ITC reversal details for a GSTIN and return period. GSTR-2B is the static monthly statement used to determine eligible input tax credit.

Because 2B is fixed for the period rather than updating continuously, it is what most businesses reconcile against. The reversal details matter because credit claimed and later reversed still affects the final position.

## Where teams use the Get 2B Data API

1.  Computing eligible input tax credit for a period
    
2.  Tracking ITC reversals in reconciliation
    
3.  Reconciling against a stable monthly statement
    
4.  Automating credit computation in accounting
    

## Frequently Asked Questions (FAQs)

Why use 2B rather than 2A?

2B is static for the period, so reconciliation against it is reproducible. 2A keeps changing as suppliers file.

What is an ITC reversal?

Credit previously claimed that must be reversed under the GST rules, which changes the net position for the period.

How often should I reconcile?

Monthly, aligned to the return cycle, so problems surface while there is still time to act.

## Related APIs

-   [Get 2A Data API Retrieve GSTR-2A B2B invoice details by GSTIN and return period to reconcile input tax credit against what your suppliers have actually filed.](/apis/get-2a-data/)
-   [Get 3B Data API Retrieve GSTR-3B summary return details for a GSTIN and return period, showing declared tax liability and credit for compliance and credit checks.](/apis/get-3b-data/)
-   [Get 1A data API Retrieve GSTR-1A B2B invoice details for a GSTIN and return period, giving your GST reconciliation workflow the amendments a supplier has filed.](/apis/get-1a-data/)
-   [Esign Status Check API Check the live status of an Aadhaar eSign request and retrieve document and recipient signing details, so you know exactly who has signed and who hasn't.](/apis/esign-status-check/)

## Start verifying with the Get 2B Data API

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