> ## Documentation Index > Fetch the complete documentation index at: https://developer.sandbox.co.in/llms.txt > Use this file to discover all available pages before exploring further. # Get GSTR-1A Declaration Details > This API is used to view the GSTR1 , GSTR1A and IFF Liability details along with Available ITC ,Cash Ledger details and ITC Available as per GSTR2B Details. #### Response body schema ## OpenAPI ````yaml api-reference/gst/compliance/openapi.json GET /gst/compliance/tax-payer/gstrs/gstr-1a/declaration-details/{year}/{month} openapi: 3.0.1 info: title: compliance description: >- **GST Compliance API** enables businesses to automate compliance requirements like [Taxpayer verification](https://developer.sandbox.co.in/reference/search-gstin-api), [GSTR Filing](https://developer.sandbox.co.in/reference/gst-taxpayer-authentication), [Generating E-Invoices](https://developer.sandbox.co.in/reference/e-invoice-authentication-api), and [E-Way Bills](https://developer.sandbox.co.in/reference/e-way-bill-authentication-api).We provide these APIs from GSTN-authorised GST Suvidha Providers, handling the encryption-decryption and signing so you don't have to handle the complexities. version: 1.0.0 servers: - url: https://api.sandbox.co.in - url: https://test-api.sandbox.co.in security: [] tags: - name: Public - name: Taxpayer - name: Taxpayer Auth - name: Returns - name: GSTR-1 Documents - name: File GSTR-1 - name: GSTR-2A Documents - name: GSTR-2B Document - name: File GSTR-3B - name: GSTR-4 - name: File GSTR-9 - name: Invoice Management System - name: GSTR-1A Documents - name: File GSTR-1A - name: Ledgers - name: e-Invoice - name: Sales e-Invoices for return period - name: Purchase e-Invoices for return period - name: Front Office Notices - name: Front Office - name: AATO - name: e-Invoice1 - name: Authentication - name: e-Invoice12 - name: E-Way Bill - name: E-Way Bill1 - name: Authentication1 - name: Consignor - name: Consolidated E-Way Bill - name: Multi-Vehicle Movement - name: Consignee - name: Transporter - name: Consolidated E-Way Bill1 - name: Multi-vehicle Movement - name: Common paths: /gst/compliance/tax-payer/gstrs/gstr-1a/declaration-details/{year}/{month}: get: tags: - Taxpayer - Returns - File GSTR-1A summary: Get GSTR-1A Declaration Details description: >- This API is used to view the GSTR1 , GSTR1A and IFF Liability details along with Available ITC ,Cash Ledger details and ITC Available as per GSTR2B Details. operationId: getGstr1aDeclarationDetails parameters: - name: year in: path description: Return year, for example `2025`. required: true example: '2026' schema: type: string - name: month in: path description: Return month, for example `04`. required: true example: '04' schema: type: string - name: authorization in: header description: >- GST taxpayer access token. For token-generation steps, refer to the Generate Taxpayer Session flow and pass the token in the authorization header. required: true example: '{{gsp_access_token}}' schema: type: string - name: x-api-version in: header description: Compliance API version. required: false example: 1.0.0 schema: type: string default: 1.0.0 - name: x-api-key in: header description: API key for identification. required: true example: '{{api_key}}' schema: type: string responses: '200': description: Success content: application/json: schema: type: object properties: {} examples: success: summary: Success value: code: 200 timestamp: 1763446641000 transaction_id: 41bb8041-fb83-4654-8d75-85a19f329158 data: status_cd: '1' data: gstin: 32CHAND3868A1Z3 ret_period: '092024' r2bStaleStatus: 'N' declared_tmstmp: '2025-03-20 13:24:00' chksum: >- 0b194f5f9cfeb178a4d1440103641b81eb17728b9afd6691a3661aa9c3dd0f8d liab: gstr1Liab: sec_nm: TTL_LIAB_GSTR1 chksum: >- 0b194f5f9cfeb178a4d1440103641b81eb17728b9afd6691a3661aa9c3dd0f8d ttl_tax: 2000 ttl_igst: 10 ttl_sgst: 0 ttl_cgst: 0 ttl_cess: 0 ttl_val: 10 iffLiab: - sec_nm: TTL_LIAB_IFF chksum: >- 938a7da1b6692b772d3c04fe1a7005ba1508d765acd007df5ed7fb7b8cb38c05 iff_ret_period: '072024' ttl_tax: 2000 ttl_igst: 10 ttl_sgst: 0 ttl_cgst: 0 ttl_cess: 0 ttl_val: 10 - sec_nm: TTL_LIAB_IFF chksum: >- 063a5b1a3bbc23d11761b156c446a285d7703be484a276a0a32e29bda10d4f8a iff_ret_period: '082024' ttl_tax: 2000 ttl_igst: 10 ttl_sgst: 0 ttl_cgst: 0 ttl_cess: 0 ttl_val: 10 gstr1aLiab: sec_nm: TTL_LIAB_GSTR1A chksum: >- 0b194f5f9cfeb178a4d1440103641b81eb17728b9afd6691a3661aa9c3dd0f8d ttl_tax: 1000 ttl_igst: 10 ttl_sgst: 0 ttl_cgst: 0 ttl_cess: 0 ttl_val: 10 bal: cash_bal: chksum: >- 0b194f5f9cfeb178a4d1440103641b81eb17728b9afd6691a3661aa9c3dd0f8d igst_bal: 10000 cgst_bal: 5000 sgst_bal: 5000 cess_bal: 1000 ttl_bal: 21000 itc_bal: chksum: >- 0b194f5f9cfeb178a4d1440103641b81eb17728b9afd6691a3661aa9c3dd0f8d igst_bal: 10000 cgst_bal: 0 sgst_bal: 0 cess_bal: 0 ttl_bal: 0 gstr2b_itc_bal: chksum: >- 0b194f5f9cfeb178a4d1440103641b81eb17728b9afd6691a3661aa9c3dd0f8d igst_bal: 0 cgst_bal: 0 sgst_bal: 0 cess_bal: 0 ttl_bal: 0 record_not_found: summary: Record Not Found value: code: 200 timestamp: 1782370458899 data: status_cd: '0' error: message: >- You are not allowed to view or confirm the declaration details as GSTR-1A Summary is not generated for the Current Period. error_cd: RET191505 transaction_id: 0754f7ed-79d0-4a4c-be72-65f9297103ea headers: {} deprecated: false security: [] ````