Formatting Issues

How to Fix Table of Contents Indentation in Word

Partner Editor Oct 8, 2026 869 views

Question details

The user needs to adjust the indentation of entries within a document's Table of Contents to properly reflect the heading hierarchy.

How to Fix Table of Contents Indentation in Word

Product: Microsoft Word
Device & OS: not provided
Scenario: Formatting a structured document's Table of Contents to clearly show nested heading levels.
Observed behavior: Changing heading levels in the document body does not automatically alter the indentation of those entries in the generated Table of Contents.

Before you start

Before adjusting your Table of Contents formatting, verify that your document text is consistently formatted using built-in Heading styles (such as Heading 1, Heading 2, and Heading 3) in the correct hierarchical order.

Solution 1Recommended

Modify the Default TOC Styles to Adjust Indentation

Table of Contents formatting is governed by specific TOC styles rather than in-text heading styles. You must modify these TOC styles to adjust the global indentations.

Word uses specific styles named TOC 1, TOC 2, TOC 3, etc., to control the appearance of the Table of Contents. Heading 1 maps to TOC 1, Heading 2 maps to TOC 2, and so forth. Updating these underlying TOC styles is the correct way to change indentation globally without losing your formatting during future updates.

Access Custom Table of Contents

Navigate to the 'References' tab on the top ribbon, click on 'Table of Contents', and select 'Custom Table of Contents' from the bottom of the drop-down menu.

Open the Modify Dialog

In the Table of Contents dialog box, click on the 'Modify' button located in the lower right corner.

Select the TOC Level

A Style window will appear displaying TOC 1 through TOC 9. Select the specific TOC level you want to adjust (for example, TOC 3) and click 'Modify' again.

Adjust Paragraph Indentation

In the Modify Style dialog, click the 'Format' button at the bottom left and select 'Paragraph'. Adjust the 'Left Indentation' value to your preferred spacing, then click 'OK'.

Apply and Replace

Click 'OK' to close all open dialog boxes. When prompted with 'Replace this table of contents?', click 'Yes' to apply the newly indented styles.

Modify the Default TOC Styles to Adjust Indentation

Update Successful: Checking the 'Automatically update' box within the Modify Style dialog ensures that future manual adjustments to the TOC entries are saved to the style automatically.

Solution 2

Refresh the Table of Contents After Heading Changes

If you changed a heading level in your document text (such as demoting Heading 3 to Heading 4), you must update the entire Table of Contents for the correct corresponding TOC style to apply.

Easy Document Formatting

Easily Create and Format a Table of Contents in WPS Writer

WPS Writer offers an incredibly intuitive interface for generating, customizing, and formatting a Table of Contents. You can seamlessly adjust TOC styles and manage heading hierarchies without navigating complex legacy menus.

1. Open Your Document in WPS Writer: Launch WPS Office and open your text document, ensuring your main topics are formatted with default Heading styles.
2. Go to the References Tab: Click on the 'References' tab on the top toolbar to access document structure tools.
3. Insert Table of Contents: Click 'Table of Contents' and choose 'Insert Table of Contents' from the drop-down list to open the customization menu.
4. Modify TOC Layouts: In the settings box, customize your tab leaders and click 'Options' to specify how many heading levels to show and indent.
5. Generate the Table: Click 'OK' to instantly generate a perfectly formatted, professionally indented Table of Contents for your document.

Highly compatible with Microsoft Word (.docx) formatsIntuitive interface for managing Table of Contents formatting and stylesFree, lightweight, and fast word processor for all document needsSeamless layout preservation when sharing files across platforms

microsoft office alternative - wps office

Frequently Asked Questions

Why doesn't changing my heading style update the TOC indentation?

The Table of Contents relies on its own distinct set of styles (TOC 1, TOC 2, TOC 3, etc.) for formatting. Modifying a heading's appearance in the main text does not automatically alter the corresponding TOC style's paragraph indentation settings.

Can I manually add spaces to indent just one line in the TOC?

It is highly discouraged to manually format or add spaces to a single line in the Table of Contents. Any manual changes will be completely erased the next time you update the table. Instead, modify the underlying TOC style for that level.

How do I make the Table of Contents automatically indent subheadings?

Ensure your document uses a proper heading hierarchy (Heading 1 for titles, Heading 2 for main sections, Heading 3 for sub-sections). Word's default TOC styles are already set up to apply a cascading indent based on these heading levels when you generate the table.

Document & File Issues