Add support for the Individuals Tax Liability Adjustments API

README.rst

@@ -55,7 +55,7 @@ It has a fairly straightforward interface, essentially
 
 ::
 
-   mtd-cli init|init-creds|init-oauth|init-nino|bd|biss|bsas|cisd|ic|ical|icgi|id|idi|ie|iei|ifi|iipi|ilos|ioi|ipi|ir|isb|isi|ob|od|pb|saa|saass|said|seb|vat|test_cu|test_fph|test_sa
+   mtd-cli init|init-creds|init-oauth|init-nino|bd|biss|bsas|cisd|ic|ical|icgi|id|idi|ie|iei|ifi|iipi|ilos|ioi|ipi|ir|isb|isi|itla|ob|od|pb|saa|saass|said|seb|vat|test_cu|test_fph|test_sa
 
 The first argument specifies the API to interface with
 

src/endpoints.h

@@ -28,6 +28,7 @@ extern const struct _endpoint ipi_endpoint;
 extern const struct _endpoint ir_endpoint;
 extern const struct _endpoint isb_endpoint;
 extern const struct _endpoint isi_endpoint;
+extern const struct _endpoint itla_endpoint;
 extern const struct _endpoint ob_endpoint;
 extern const struct _endpoint od_endpoint;
 extern const struct _endpoint pb_endpoint;

src/mtd-cli-itla.c

@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * mtd-cli-itla.c - Make Tax Digital - Individuals Tax Liability Adjustments
+ *
+ * Copyright (C) 2026		Andrew Clayton <ac@sigsegv.uk>
+ */
+
+#include <stdbool.h>
+
+#include <libmtdac/mtd.h>
+
+#include "mtd-cli.h"
+
+#define API	itla
+
+#define API_NAME "Individuals Tax Liability Adjustments"
+#define CMDS \
+"get update delete"
+
+static const struct endpoint endpoints[] = {
+	{
+		.name		= "get",
+		.api_ep		= MTD_API_EP_ITLA_GET,
+		.nr_req_args	= 1,
+		.args		= "taxYear"
+	}, {
+		.name		= "update",
+		.api_ep		= MTD_API_EP_ITLA_UPDATE,
+		.nr_req_args	= 2,
+		.file_data	= true,
+		.args		= "<file> taxYear"
+	}, {
+		.name		= "delete",
+		.api_ep		= MTD_API_EP_ITLA_DELETE,
+		.nr_req_args	= 1,
+		.args		= "taxYear"
+	},
+
+	{}
+};
+
+const struct _endpoint ENDPOINT = {
+	.endpoints = endpoints,
+	.api_name = API_NAME,
+	.cmds = CMDS
+};

src/mtd-cli.c

@@ -54,6 +54,7 @@ static const struct api_ep {
 	EP_MAP_ENT(ir),
 	EP_MAP_ENT(isb),
 	EP_MAP_ENT(isi),
+	EP_MAP_ENT(itla),
 	EP_MAP_ENT(ob),
 	EP_MAP_ENT(od),
 	EP_MAP_ENT(pb),