Business API

GST Filing Frequency

Whether a GSTIN files its returns monthly or quarterly, quarter by quarter, for one financial year.

GST Filing Frequency
POST

GST Filing Frequency API — Whether a GSTIN files its returns monthly or quarterly, quarter by quarter, for one financial year. Under the QRMP scheme a small taxpayer may switch preference between quarters, so the answer is a list: Q1 through Q4, each marked monthly or quarterly, alongside a derived filing_frequency that summarises the whole year as monthly, quarterly or mixed. It is the missing half of a GST compliance check: a GSTR-1 absent for a month is only late if that taxpayer files monthly, and treating a quarterly filer as delinquent is the most common false positive in supplier monitoring. Use it to time GSTR-2A / 2B reconciliation to each supplier's real cadence, set the right input tax credit expectation, and stop chasing returns that were never due.

  • Coverage: India
  • Real-time business lookup
  • Structured JSON response
  • POST request with Bearer auth
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Endpoint
POST
https://app.way2api.com/api/v1/gst/filing-frequency

Content-Type: application/json
Authorization: Bearer YOUR_API_KEY

Request Parameters
Parameter Type Required Description
gst_number string Yes 15-character GSTIN, e.g. 03DOXPM4071K1ZE. Case-insensitive.
financial_year string Yes Indian financial year (April to March), 2017-18 onwards. Accepts 2023-24, 2023-2024 or 202324.
Request Example
<?php $ch = curl_init(); curl_setopt_array($ch, [ CURLOPT_URL => "https://app.way2api.com/api/v1/gst/filing-frequency", CURLOPT_RETURNTRANSFER => true, CURLOPT_POST => true, CURLOPT_HTTPHEADER => [ "Authorization: Bearer YOUR_API_KEY", "Content-Type: application/json" ], CURLOPT_POSTFIELDS => json_encode([ "gst_number" => "03DOXPM4071K1ZE", "financial_year" => "2023-24" ]) ]); $response = curl_exec($ch); $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); $data = json_decode($response, true); print_r($data);
const response = await fetch("https://app.way2api.com/api/v1/gst/filing-frequency", { method: "POST", headers: { "Authorization": "Bearer YOUR_API_KEY", "Content-Type": "application/json" }, body: JSON.stringify({ "gst_number": "03DOXPM4071K1ZE", "financial_year": "2023-24" }) }); if (!response.ok) { throw new Error(`HTTP error: ${response.status}`); } const data = await response.json(); console.log(data);
curl -X POST https://app.way2api.com/api/v1/gst/filing-frequency \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{"gst_number":"03DOXPM4071K1ZE","financial_year":"2023-24"}'
$.ajax({ url: "https://app.way2api.com/api/v1/gst/filing-frequency", type: "POST", contentType: "application/json", headers: { "Authorization": "Bearer YOUR_API_KEY" }, data: JSON.stringify({ "gst_number": "03DOXPM4071K1ZE", "financial_year": "2023-24" }), success: function(data) { console.log(data); }, error: function(xhr) { console.error(xhr.responseJSON); } });
const { data } = await axios.post( "https://app.way2api.com/api/v1/gst/filing-frequency", {"gst_number":"03DOXPM4071K1ZE","financial_year":"2023-24"}, { headers: { "Authorization": "Bearer YOUR_API_KEY" } } ); console.log(data);
import requests response = requests.post( "https://app.way2api.com/api/v1/gst/filing-frequency", headers={ "Authorization": "Bearer YOUR_API_KEY", "Content-Type": "application/json" }, json={ "gst_number": "03DOXPM4071K1ZE", "financial_year": "2023-24" } ) print(response.status_code) print(response.json())
Response Example
200 OK Success Response 
{
    "success": true,
    "message": "",
    "data": {
        "order_id": "W2A1739512345abcdef01",
        "result": {
            "gst_number": "03DOXPM4071K1ZE",
            "financial_year": "2023-24",
            "filing_frequency": "quarterly",
            "quarters": [
                {
                    "quarter": "Q1",
                    "frequency": "quarterly"
                },
                {
                    "quarter": "Q2",
                    "frequency": "quarterly"
                },
                {
                    "quarter": "Q3",
                    "frequency": "quarterly"
                },
                {
                    "quarter": "Q4",
                    "frequency": "quarterly"
                }
            ]
        }
    }
}
4xx Error Response 
{
    "success": false,
    "message": "Invalid GSTIN",
    "data": {
        "order_id": "W2A1739512345abcdef01",
        "error_code": "INVALID_GSTIN",
        "result": {
            "gst_number": "03DOXPM4071K1ZZ",
            "financial_year": "2023-24",
            "filing_frequency": "unknown",
            "quarters": []
        }
    }
}
Common Response Codes
Code Meaning
200 OK — Request successful
400 Bad Request — Missing or invalid parameters
401 Unauthorized — Invalid or missing API key
429 Too Many Requests — Rate limit exceeded
500 Server Error — Try again later
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