diff --git a/docs/reference-guides/core-blocks/README.md b/docs/reference-guides/core-blocks/README.md
index a8cbe8cecb839d..1f2bd8149c4027 100644
--- a/docs/reference-guides/core-blocks/README.md
+++ b/docs/reference-guides/core-blocks/README.md
@@ -727,7 +727,7 @@ Post terms.
 
 -	**Name:** [core/post-terms](https://developer.wordpress.org/block-editor/reference-guides/core-blocks/core-blocks-theme/core-block-post-terms/)
 -	**Category:** [theme](https://developer.wordpress.org/block-editor/reference-guides/core-blocks/core-blocks-theme/)
--	**Supports:** anchor, color (background, gradients, link, text), interactivity (clientNavigation), shadow, spacing (margin, padding), typography (fontSize, lineHeight, textAlign), ~~html~~
+-	**Supports:** anchor, background (backgroundImage, backgroundSize, gradient), color (background, gradients, link, text), interactivity (clientNavigation), shadow, spacing (margin, padding), typography (fontSize, lineHeight, textAlign), ~~html~~
 -	**Attributes:** prefix, separator, suffix, term
 
 ## Time to Read
diff --git a/packages/block-library/src/post-terms/README.md b/packages/block-library/src/post-terms/README.md
index f4d5fd7667a039..7b5057966d7cd3 100644
--- a/packages/block-library/src/post-terms/README.md
+++ b/packages/block-library/src/post-terms/README.md
@@ -25,6 +25,10 @@ _Defined via the [`supports`](https://developer.wordpress.org/block-editor/refer
 
 - [`anchor`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#anchor): `true`
 - [`html`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#html): `false`
+- [`background`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#background):
+  - `backgroundImage`: `true`
+  - `backgroundSize`: `true`
+  - `gradient`: `true`
 - [`color`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color):
   - [`gradients`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color-gradients): `true`
   - [`link`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color-link): `true`
diff --git a/packages/block-library/src/post-terms/block.json b/packages/block-library/src/post-terms/block.json
index ff0278aa1ef63d..4244a9cc65ed0e 100644
--- a/packages/block-library/src/post-terms/block.json
+++ b/packages/block-library/src/post-terms/block.json
@@ -32,6 +32,11 @@
 	"supports": {
 		"anchor": true,
 		"html": false,
+		"background": {
+			"backgroundImage": true,
+			"backgroundSize": true,
+			"gradient": true
+		},
 		"color": {
 			"gradients": true,
 			"link": true,