Formatting Issues

How to Map Heading Styles to Table of Contents Levels in Word

Phi Hung VoPhi Hung Vo Oct 29, 2026 868 views

Question details

The user needs to assign custom heading styles to specific Table of Contents hierarchy levels to properly format their document's outline.

How to Map Heading Styles to Table of Contents Levels in Word
Product
Microsoft Word 2010
Device & OS
not provided
Scenario
Creating a complex document where certain part headings need to appear at specific levels in the Table of Contents, separate from default heading structures.
Observed behavior
The goal is to map required document styles to desired TOC levels without adding unwanted default headings to the hierarchy.
Before you start

Ensure you have already applied the custom heading styles to the relevant text throughout your document before generating or modifying the Table of Contents.

Solution 1Recommended

Modify Table of Contents Options

Use the Table of Contents Options dialog to manually assign TOC levels to your custom document styles.

By default, Word only includes standard Heading 1, 2, and 3 styles in the Table of Contents. If you use custom styles for chapter titles or specific sections, you must map them to a TOC level so Word knows where to place them in the outline hierarchy.

1
Open Table of Contents Settings

Navigate to the 'References' tab on the ribbon, click on 'Table of Contents', and select 'Insert Table of Contents...' (or 'Custom Table of Contents' in newer versions).

2
Access TOC Options

In the Table of Contents dialog box that appears, click the 'Options...' button located in the lower right corner.

3
Map Custom Styles to Levels

Scroll through the 'Available styles' list to find your custom style. Type a number (e.g., 1, 2, or 3) in the 'TOC level' box next to it to assign its hierarchy level.

4
Remove Unwanted Headings

If you want to exclude certain default styles (like Heading 3), simply delete the number from its corresponding 'TOC level' box.

5
Apply and Update

Click 'OK' to close the Options dialog, then click 'OK' again to generate or replace your Table of Contents with the new style mappings.

Modify Table of Contents Options
Update the Table Whenever Styles Change: If you add new custom headings to your text later, right-click the Table of Contents and select 'Update Field' > 'Update entire table' to refresh the outline.
Smart Document Formatting

Easily Map TOC Styles with WPS Writer

WPS Writer offers an intuitive approach to structuring professional documents. You can easily map custom heading styles to your Table of Contents, ensuring your lengthy reports and books are perfectly organized.

  1. 1. Go to the References Tab: Open your document in WPS Writer and navigate to the 'References' tab on the top menu bar.
  2. 2. Insert Table of Contents: Click on 'Table of Contents' and select 'Insert Table of Contents' from the dropdown menu.
  3. 3. Open TOC Options: In the dialog box, click the 'Options' button to view all available document styles.
  4. 4. Assign Levels: Type the desired outline level number next to your custom heading styles, clear any unwanted levels, and click 'OK' twice to apply.
Seamlessly compatible with Microsoft Word (.docx) formats and styling rules.User-friendly Table of Contents customization for quick layout management.Free, lightweight, and fast alternative for professional word processing.
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Frequently Asked Questions

Why aren't my custom styles showing up in the Table of Contents?

Custom styles do not appear automatically. You must open the Table of Contents Options dialog and manually assign a TOC level number (1-9) next to your custom style name.

Can I remove default headings from my Table of Contents?

Yes. In the Table of Contents Options dialog, scroll to the default heading (e.g., Heading 1 or Heading 2) and delete the number in the 'TOC level' box next to it.

Will my custom TOC mappings be saved with the document?

Yes, once you map the styles to specific TOC levels and save your document, those settings are retained. You can simply update the table field as you add new content.

Can I have multiple styles mapped to the same TOC level?

Absolutely. You can assign the same level number (for example, level 1) to multiple different custom styles, and they will all appear at the highest hierarchy level in your Table of Contents.