diff --git a/margin-record.sh b/margin-record.sh
new file mode 100755
index 0000000..8c7603a
--- /dev/null
+++ b/margin-record.sh
@@ -0,0 +1,81 @@
+#!/bin/bash
+
+# === CONFIGURACIÓN: Tus credenciales ===
+API_KEY="bg_28730a088b4b71c307ed5773b84d8267"
+API_SECRET="f7e4872f828c99612df009c3641421fc41d9dfb9cfc56dce3311fdaae70f5b29"
+PASSPHRASE="cQTVzepB6KuFWgWLgCpB6kW84iiqJr3u"
+
+# === ENDPOINT ===
+METHOD="GET"
+BASE_URL="https://api.bitget.com"
+ENDPOINT="/api/v2/tax/margin-record"
+
+# === ARCHIVO SALIDA ===
+OUTPUT_FILE="margin-record-2025.csv"
+> "$OUTPUT_FILE"
+
+# === CABECERA CSV ===
+echo '"id","coin","marginTaxType","amount","fee","balance","ts","fecha_gmt1"' > "$OUTPUT_FILE"
+
+# === FUNCIONES ===
+function timestamp() {
+  date -u -j -f "%Y-%m-%d" "$1" +"%s"
+}
+
+function build_request() {
+  local START_TS_MS="$1"
+  local END_TS_MS="$2"
+  local LIMIT=500
+  local QUERY_STRING="startTime=${START_TS_MS}&endTime=${END_TS_MS}&limit=${LIMIT}"
+  local FULL_URL="${BASE_URL}${ENDPOINT}?${QUERY_STRING}"
+
+  local TIMESTAMP=$(curl -s https://api.bitget.com/api/v2/public/time | jq -r '.data.serverTime')
+  local PREHASH="${TIMESTAMP}${METHOD}${ENDPOINT}?${QUERY_STRING}"
+  local SIGNATURE=$(echo -n "${PREHASH}" | openssl dgst -sha256 -hmac "${API_SECRET}" -binary | base64)
+
+  curl -s "${FULL_URL}" \
+    -H "ACCESS-KEY: ${API_KEY}" \
+    -H "ACCESS-SIGN: ${SIGNATURE}" \
+    -H "ACCESS-TIMESTAMP: ${TIMESTAMP}" \
+    -H "ACCESS-PASSPHRASE: ${PASSPHRASE}" \
+    -H "Content-Type: application/json" \
+    -H "locale: en-US"
+}
+
+# === BUCLE POR BLOQUES DE 30 DÍAS ===
+START_DATE="2025-01-01"
+END_DATE="2026-01-01"
+CURRENT_DATE="$START_DATE"
+
+while [[ "$CURRENT_DATE" < "$END_DATE" ]]; do
+  NEXT_DATE=$(date -j -v+30d -f "%Y-%m-%d" "$CURRENT_DATE" +"%Y-%m-%d")
+
+  START_MS=$(($(timestamp "$CURRENT_DATE") * 1000))
+  END_MS=$(($(timestamp "$NEXT_DATE") * 1000))
+
+  echo "🔄 Consultando de $CURRENT_DATE a $NEXT_DATE..."
+
+  RESPONSE=$(build_request "$START_MS" "$END_MS")
+
+  echo "$RESPONSE" | jq -r '
+    if .code == "00000" and (.data | length > 0) then
+      .data[] | [
+        .id,
+        .coin,
+        .marginTaxType,
+        .amount,
+        .fee,
+        .balance,
+        .ts,
+        (.ts|tonumber/1000 | strflocaltime("%Y-%m-%d %H:%M:%S +0100"))
+      ] | @csv
+    else
+      empty
+    end
+  ' >> "$OUTPUT_FILE"
+
+  sleep 2
+  CURRENT_DATE="$NEXT_DATE"
+done
+
+echo "✅ Exportado como $OUTPUT_FILE"
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