diff --git a/2026_Nessus_Remediation_Tracker.xlsx b/2026_Nessus_Remediation_Tracker.xlsx
new file mode 100644
index 0000000..651ed78
Binary files /dev/null and b/2026_Nessus_Remediation_Tracker.xlsx differ
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 527b0c4..219d76d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 # Changelog
 
 ## 2026-02-26
+- Added `scripts/build_2026_tracker_workbook.py` to build `2026_Nessus_Remediation_Tracker.xlsx` with:
+  - `Intro` sheet copied from `OLD_Tracker.xlsx`
+  - current generated `Remediations` and `Template` sheets
+  - month sheets (`January`..`December`) cloned from `Template`
+  - exclusion of `CVETracker`, `testing`, and historical month CVE data
+- Updated 2026 workbook generation to preserve `Intro` in-place from `OLD_Tracker.xlsx` (including original sheet outline/formatting fidelity).
+- Set freeze panes to `A2` on `Template` and all month sheets in `2026_Nessus_Remediation_Tracker.xlsx`.
 - Added `WIKI.md` quick usage guide with setup, workbook workflow, key formats, validation, and push/mirror steps.
 - Simplified `Remediations` status options to `exception`, `exception - permanent`, in-progress variants, and `resolved`.
 - Added `Excepted until (date)` to `Remediations` and `Template`, with overdue-date highlighting (red) when the date has passed.
diff --git a/README.md b/README.md
index 7f7bb0d..d1f3292 100644
--- a/README.md
+++ b/README.md
@@ -67,6 +67,14 @@ python3 scripts/build_tracker_workbook.py
 
 Output file: `nessus_remediation_tracker.xlsx`
 
+## Generate 2026 tracker workbook
+
+```bash
+python3 scripts/build_2026_tracker_workbook.py
+```
+
+Output file: `2026_Nessus_Remediation_Tracker.xlsx`
+
 ## Validate workbook output
 
 ```bash
diff --git a/scripts/build_2026_tracker_workbook.py b/scripts/build_2026_tracker_workbook.py
new file mode 100644
index 0000000..efa23ce
--- /dev/null
+++ b/scripts/build_2026_tracker_workbook.py
@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+"""Build the 2026 Nessus remediation tracker workbook."""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+from openpyxl import load_workbook
+
+from build_tracker_workbook import MAX_TEMPLATE_ROWS
+from build_tracker_workbook import build_remediations_sheet
+from build_tracker_workbook import build_template_sheet
+
+OLD_TRACKER_FILE = Path("OLD_Tracker.xlsx")
+OUTPUT_FILE = Path("2026_Nessus_Remediation_Tracker.xlsx")
+MONTH_SHEETS = [
+    "January",
+    "February",
+    "March",
+    "April",
+    "May",
+    "June",
+    "July",
+    "August",
+    "September",
+    "October",
+    "November",
+    "December",
+]
+
+
+def main() -> None:
+    if not OLD_TRACKER_FILE.exists():
+        raise FileNotFoundError(f"Missing required input file: {OLD_TRACKER_FILE}")
+
+    wb = load_workbook(OLD_TRACKER_FILE)
+    if "Intro" not in wb.sheetnames:
+        raise ValueError(f"Sheet 'Intro' not found in {OLD_TRACKER_FILE}")
+
+    for sheet_name in list(wb.sheetnames):
+        if sheet_name != "Intro":
+            wb.remove(wb[sheet_name])
+
+    scratch = wb.create_sheet("Scratch")
+    wb.active = wb.index(scratch)
+    build_remediations_sheet(wb)
+    build_template_sheet(wb, MAX_TEMPLATE_ROWS)
+
+    template_ws = wb["Template"]
+    template_ws.freeze_panes = "A2"
+    for month in MONTH_SHEETS:
+        month_ws = wb.copy_worksheet(template_ws)
+        month_ws.title = month
+        month_ws.freeze_panes = "A2"
+
+    ordered_sheets = ["Intro", "Remediations", "Template", *MONTH_SHEETS]
+    wb._sheets = [wb[name] for name in ordered_sheets]
+
+    temp_output = OUTPUT_FILE.with_suffix(".tmp.xlsx")
+    wb.save(temp_output)
+    temp_output.replace(OUTPUT_FILE)
+    print(f"Wrote {OUTPUT_FILE}")
+
+
+if __name__ == "__main__":
+    main()