OmniDocControl Heading Levels in a Word Table of Contents
Learn which heading levels appear in a Word table of contents, how the Navigation Pane relates to them, and how to change depth without rebuilding the TOC.
If your Word table of contents shows too much detail, or it leaves out a subsection you need, the problem is almost always the heading levels. Many writers assume they have to delete the table and rebuild it, but the depth is a setting you can change. The same goes for the Navigation Pane, which often shows headings that the table of contents does not. Readers searching for table of contents word levels, table of contents word subheadings, or the sidebar view usually want to know why the two disagree.
This guide explains which heading levels appear in the table of contents, how the Navigation Pane relates to them, and how to adjust depth without starting over. It applies to Word (.docx) documents. If you plan to translate the file afterward, the last sections cover what to check in the translated copy.
Which heading levels appear in a Word table of contents? The short answer
Only the heading levels you allow in the table of contents settings appear in it, and the Navigation Pane shows all heading levels regardless of that setting. Change the levels setting and then update the table, and the list changes without a rebuild.
| Your situation | What to do | Why |
|---|---|---|
| The table lists chapters but no subsections | Raise the levels setting to include your subheading level, such as 2 or 3 | The table only includes levels up to the number you set |
| The table is too long and cluttered | Lower the levels setting to 1 or 2 | Fewer levels mean a shorter list, while the document headings stay the same |
| The Navigation Pane shows more than the table | Leave it alone; this is expected | The Navigation Pane displays every heading level, not just the ones in the table |
| A heading is missing from both | Check that the text uses a heading style or an outline level | Plain bold text is not a heading to Word |
| You changed settings but nothing updated | Update the existing table of contents | Word does not refresh the table until you tell it to |
Before you start
Check these items first. Most depth problems trace back to one of them.
- Confirm the headings use heading styles. Word builds both the table of contents and the Navigation Pane from heading styles (Heading 1, Heading 2, and so on) or from paragraphs with an outline level. Text that only looks like a heading, such as bold text at a larger size, will not appear in either one.
- Decide which depth you need. A report with three chapters and a few subsections often works well at two levels. A long manual may need three. Deciding first saves you from adjusting the setting repeatedly.
- Save a copy of the file. Updating a table of contents is easy to undo, but changes to heading styles across many sections can be harder to reverse. A copy gives you a fallback.
- Note the table's current location. If you update the table by inserting a new one, you may end up with two. Keep the existing table in place and update it.
- Know the difference between the two views. The table of contents is printed content in the document. The Navigation Pane is a sidebar for moving around while you work. They share the same headings but control different things.
Changing the table of contents depth in Word, step by step
Follow these steps to change which levels appear in an existing table of contents. The steps describe the general method; exact labels may vary by Word version.
- Open the table of contents settings. Click anywhere inside the existing table, then open the table of contents options from the reference area of the ribbon. This shows the settings that control the table's appearance.
- Find the levels setting. Look for the option that controls how many heading levels appear. Word's default is usually three.
- Set the number you need. Enter 1 to show only top-level headings, 2 to add the next level, and so on. Word supports up to nine levels, but most documents use two or three.
- Confirm and let Word preview the change. Accept the settings. The table may not change right away if you have not updated it yet.
- Update the existing table. Right-click inside the table and choose the update option. Pick the option that updates the whole table, so page numbers and entries refresh together.
- Scroll through the result. Confirm that the new depth matches what you planned. If a level is still missing, go back to the heading styles and check that paragraph.
- Compare with the Navigation Pane. Turn on the Navigation Pane from Word's view options. You should see the full heading structure, including levels you hid from the table.
- Save the file. Keep the updated version as your working copy before you export it or send it for translation.
Why the Navigation Pane shows more than the table of contents
The Navigation Pane is built for moving around a document, so it shows every heading level Word recognizes. The table of contents is built for printed or PDF output, so it follows the levels setting you chose. This is a common source of confusion.
If you want the Navigation Pane to match the table, you cannot fix that with the levels setting, because the two features read the heading structure separately. Instead, adjust the heading styles themselves. Demote a heading you do not want in the structure, or move text that should not be a heading into body text. Then update the table.
Paragraphs with an outline level can also show up in the Navigation Pane even when they use a non-heading style. If a caption or note keeps appearing there, check its outline level setting and remove it if it does not belong.
Check the result
Once the table is updated, check it against the document and the Navigation Pane. Use this table to find and fix common problems.
| Check | How to see it | If it's wrong |
|---|---|---|
| Depth matches your plan | Count the visible levels in the table | Reopen the levels setting, adjust the number, and update the table |
| Every section appears | Compare the table with the Navigation Pane | Look for missing heading styles and apply the correct one |
| No stray entries | Scan for captions, notes, or titles listed as headings | Change those paragraphs to body text or remove their outline levels |
| Page numbers are current | Check several entries against the actual pages | Update the whole table again after any layout change |
| Translated copy matches | Compare the translated table and headings with the original | Check whether the table still reads as a table and update it in the translated file if needed |
Working with a translated copy
If you translate a Word file with OmniDoc, the output keeps the document's layout, tables, and pictures, and it can produce bilingual side-by-side output or translation only. Upload the .docx file on omnidoc.top, choose the output you need, and download the result.
Before you rely on the translated file, open it and check the table of contents and the headings. Confirm that the heading levels still make sense and that the table lists the sections you expect. If the table no longer matches the translated headings, update it in Word using the steps above. Machine translation can make mistakes, so check important terms, names, and figures against the source before you publish or share the file.
❓ FAQ
1. Why does my table of contents show only chapters and not subsections?
The levels setting is probably set to 1. Raise it to 2 or 3, then update the existing table so the new depth takes effect.
2. Can I hide the Navigation Pane entries that do not appear in my table?
Not with the levels setting, because the Navigation Pane reads every heading. Adjust the heading styles in the body text instead, then update the table.
3. Why did a caption appear in the table of contents?
The caption probably uses a heading style or an outline level. Change it to body text or remove the outline level, then update the table.
4. Do I need to insert a new table of contents after changing the levels?
No. Update the existing table so it refreshes with the new depth and page numbers. Inserting a new one can leave two tables in the document.
5. Will the table of contents still work after I translate the file?
Check it after translation. Confirm the headings and the table entries match the translated text, and update the table in Word if they no longer line up.
📝 Summary
A Word table of contents shows only the heading levels allowed by its levels setting, while the Navigation Pane shows every heading level. Adjust the setting, update the existing table, and fix the heading styles when the two do not match. Check the table again after any translation or layout change.
