diff --git a/packages/dnb-eufemia/src/components/table/__tests__/__snapshots__/Table.test.tsx.snap b/packages/dnb-eufemia/src/components/table/__tests__/__snapshots__/Table.test.tsx.snap
index 59ea9eb59f4..80cbf373cb1 100644
--- a/packages/dnb-eufemia/src/components/table/__tests__/__snapshots__/Table.test.tsx.snap
+++ b/packages/dnb-eufemia/src/components/table/__tests__/__snapshots__/Table.test.tsx.snap
@@ -56,18 +56,15 @@ exports[`Table scss have to match default theme snapshot 1`] = `
     font-size: var(--font-size-small);
     line-height: var(--line-height-small); }
 
-.dnb-table:not(.dnb-table--border):not(.dnb-table--outline) > tbody
-> tr:last-of-type
-> td::after,
-.dnb-table:not(.dnb-table--border):not(.dnb-table--outline) > tbody
-> .dnb-table__tr:last-of-type > .dnb-table__td::after {
+.dnb-table > tbody > .dnb-table__tr:last-of-type > .dnb-table__td::after,
+.dnb-table > tbody
+> .dnb-table__tr.dnb-table__tr--has-accordion-content:not(.dnb-table__tr--expanded):nth-last-child(2) td::after {
   content: '';
   position: absolute;
   left: 0;
   right: 0;
-  bottom: -0.0625rem;
-  height: 0.0625rem;
-  background-color: var(--color-black-8); }
+  bottom: 0;
+  border-bottom: var(--outline); }
 "
 `;
 
@@ -158,42 +155,39 @@ exports[`Table scss have to match snapshot 1`] = `
 .dnb-table {
   --border: 0.0625rem solid var(--color-black-8);
   --outline: 0.0625rem solid var(--color-black-8); }
-  .dnb-table--border tbody .dnb-table__td {
-    z-index: 2; }
-    .dnb-table--border tbody .dnb-table__td::after {
-      content: '';
-      position: absolute;
-      top: 0;
-      left: 0;
-      right: 0;
-      bottom: 0;
-      z-index: -1;
-      pointer-events: none;
-      border: var(--border);
-      border-right: none;
-      border-bottom: none; }
-    .dnb-table--border tbody .dnb-table__td:first-of-type::after {
-      border-left: none; }
+  .dnb-table--border tbody .dnb-table__td::after {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    z-index: 1;
+    pointer-events: none;
+    border: var(--border);
+    border-right: none;
+    border-bottom: none; }
+  .dnb-table--border tbody .dnb-table__td:first-of-type::after {
+    border-left: none; }
   .dnb-table:not(.dnb-table--outline) tbody .dnb-table__tr:last-of-type .dnb-table__td::after {
     border-bottom: var(--border); }
-  .dnb-table--outline thead .dnb-table__th {
-    z-index: 2; }
-    .dnb-table--outline thead .dnb-table__th::after {
-      content: '';
-      position: absolute;
-      top: 0;
-      left: 0;
-      right: 0;
-      bottom: 0;
-      z-index: -1;
-      pointer-events: none;
-      border-top: var(--outline); }
-    .dnb-table--outline thead .dnb-table__th:first-of-type::after {
-      border-left: var(--outline); }
-    .dnb-table--outline thead .dnb-table__th:last-of-type::after {
-      border-right: var(--outline); }
+  .dnb-table--outline thead .dnb-table__th::after {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    z-index: 1;
+    pointer-events: none;
+    border-top: var(--outline); }
+  .dnb-table--outline thead .dnb-table__th:first-of-type::after {
+    border-left: var(--outline); }
+  .dnb-table--outline thead .dnb-table__th:last-of-type::after {
+    border-right: var(--outline); }
   .dnb-table--outline tbody .dnb-table__td {
-    z-index: 2; }
+    /* stylelint-disable */
+    /* stylelint-enable */ }
     .dnb-table--outline tbody .dnb-table__td:first-of-type::after, .dnb-table--outline tbody .dnb-table__td:last-of-type::after {
       content: '';
       position: absolute;
@@ -201,32 +195,46 @@ exports[`Table scss have to match snapshot 1`] = `
       left: 0;
       right: 0;
       bottom: 0;
-      z-index: -1;
+      z-index: 1;
       pointer-events: none; }
     .dnb-table--outline tbody .dnb-table__td:first-of-type::after {
       border-left: var(--outline); }
     .dnb-table--outline tbody .dnb-table__td:last-of-type::after {
       border-right: var(--outline); }
-  .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td {
-    z-index: 2; }
-    .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td::after {
-      content: '';
-      position: absolute;
-      top: 0;
-      left: 0;
-      right: 0;
-      bottom: 0;
-      z-index: -1;
-      pointer-events: none;
-      border-bottom: var(--outline); }
+    .dnb-table--outline tbody .dnb-table__td, .dnb-table--outline tbody .dnb-table__td::before, .dnb-table--outline tbody .dnb-table__td::after {
+      transition: border-radius 400ms var(--easing-default); }
+  .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td::after {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    z-index: 1;
+    pointer-events: none;
+    border-bottom: var(--outline); }
   .dnb-table--outline thead .dnb-table__th:first-of-type, .dnb-table--outline thead .dnb-table__th:first-of-type::after {
     border-radius: 0.5rem 0 0 0; }
   .dnb-table--outline thead .dnb-table__th:last-of-type, .dnb-table--outline thead .dnb-table__th:last-of-type::after {
     border-radius: 0 0.5rem 0 0; }
-  .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td:first-of-type, .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td:first-of-type::after {
+  .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td:first-of-type, .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td:first-of-type::before, .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td:first-of-type::after,
+  .dnb-table--outline tbody
+.dnb-table__tr.dnb-table__tr--has-accordion-content:not(.dnb-table__tr--expanded):nth-last-child(2) .dnb-table__td:first-of-type,
+  .dnb-table--outline tbody
+.dnb-table__tr.dnb-table__tr--has-accordion-content:not(.dnb-table__tr--expanded):nth-last-child(2) .dnb-table__td:first-of-type::before,
+  .dnb-table--outline tbody
+.dnb-table__tr.dnb-table__tr--has-accordion-content:not(.dnb-table__tr--expanded):nth-last-child(2) .dnb-table__td:first-of-type::after {
     border-radius: 0 0 0 0.5rem; }
-  .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td:last-of-type, .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td:last-of-type::after {
+  .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td:last-of-type, .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td:last-of-type::before, .dnb-table--outline tbody .dnb-table__tr:last-of-type .dnb-table__td:last-of-type::after,
+  .dnb-table--outline tbody
+.dnb-table__tr.dnb-table__tr--has-accordion-content:not(.dnb-table__tr--expanded):nth-last-child(2) .dnb-table__td:last-of-type,
+  .dnb-table--outline tbody
+.dnb-table__tr.dnb-table__tr--has-accordion-content:not(.dnb-table__tr--expanded):nth-last-child(2) .dnb-table__td:last-of-type::before,
+  .dnb-table--outline tbody
+.dnb-table__tr.dnb-table__tr--has-accordion-content:not(.dnb-table__tr--expanded):nth-last-child(2) .dnb-table__td:last-of-type::after {
     border-radius: 0 0 0.5rem 0; }
+  .dnb-table--outline tbody .dnb-table__tr.dnb-table__tr__accordion_content:last-of-type .dnb-table__td, .dnb-table--outline tbody .dnb-table__tr.dnb-table__tr__accordion_content:last-of-type .dnb-table__td::before, .dnb-table--outline tbody .dnb-table__tr.dnb-table__tr__accordion_content:last-of-type .dnb-table__td::after {
+    border-radius: 0 0 0.5rem 0.5rem; }
   .dnb-table__td--no-spacing,
   .dnb-table td.dnb-table__td--no-spacing {
     padding: 0; }
@@ -249,10 +257,14 @@ exports[`Table scss have to match snapshot 1`] = `
 .dnb-table .dnb-table__tr--odd {
   background-color: var(--color-white); }
 
-.dnb-table--outline thead .dnb-table__tr:first-of-type {
+.dnb-table--outline thead .dnb-table__tr:first-of-type,
+.dnb-table--outline tbody
+.dnb-table__tr.dnb-table__tr--has-accordion-content:not(.dnb-table__tr--expanded):nth-last-child(2) {
   clip-path: inset(0 round 0.5rem 0.5rem 0 0); }
 
-.dnb-table--outline tbody .dnb-table__tr:last-of-type {
+.dnb-table--outline tbody .dnb-table__tr:last-of-type,
+.dnb-table--outline tbody
+.dnb-table__tr.dnb-table__tr--has-accordion-content:not(.dnb-table__tr--expanded):nth-last-child(2) {
   clip-path: inset(0 round 0 0 0.5rem 0.5rem); }
 
 /*
diff --git a/packages/dnb-eufemia/src/components/table/__tests__/__snapshots__/table-screenshot-test-tsx-table-screenshot-have-to-match-a-complex-table-layout-1-c8007.snap.png b/packages/dnb-eufemia/src/components/table/__tests__/__snapshots__/table-screenshot-test-tsx-table-screenshot-have-to-match-a-complex-table-layout-1-c8007.snap.png
index d1937f7c476..da335719537 100644
Binary files a/packages/dnb-eufemia/src/components/table/__tests__/__snapshots__/table-screenshot-test-tsx-table-screenshot-have-to-match-a-complex-table-layout-1-c8007.snap.png and b/packages/dnb-eufemia/src/components/table/__tests__/__snapshots__/table-screenshot-test-tsx-table-screenshot-have-to-match-a-complex-table-layout-1-c8007.snap.png differ
diff --git a/packages/dnb-eufemia/src/components/table/style/_table-container.scss b/packages/dnb-eufemia/src/components/table/style/_table-container.scss
index 5d8df70faaf..e03a25d0163 100644
--- a/packages/dnb-eufemia/src/components/table/style/_table-container.scss
+++ b/packages/dnb-eufemia/src/components/table/style/_table-container.scss
@@ -3,18 +3,6 @@
 *
 */
 
-@mixin tableBorder {
-  content: '';
-  position: absolute;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  z-index: 1;
-
-  pointer-events: none;
-}
-
 .dnb-table__container {
   position: relative;
 
diff --git a/packages/dnb-eufemia/src/components/table/style/_table-td.scss b/packages/dnb-eufemia/src/components/table/style/_table-td.scss
index 965a92b4f6d..f577647dfce 100644
--- a/packages/dnb-eufemia/src/components/table/style/_table-td.scss
+++ b/packages/dnb-eufemia/src/components/table/style/_table-td.scss
@@ -5,24 +5,10 @@
 
 @import './_table-header-buttons.scss';
 
-@mixin tableBorder {
-  content: '';
-  position: absolute;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  z-index: -1;
-
-  pointer-events: none;
-}
-
 .dnb-table {
   // table border
   --border: 0.0625rem solid var(--color-black-8);
   &--border tbody &__td {
-    z-index: 2; // ensure border is behind content
-
     &::after {
       @include tableBorder();
 
@@ -42,8 +28,6 @@
   // table outline
   --outline: 0.0625rem solid var(--color-black-8);
   &--outline thead &__th {
-    z-index: 2; // ensure border is behind content
-
     &::after {
       @include tableBorder();
 
@@ -58,8 +42,6 @@
     }
   }
   &--outline tbody &__td {
-    z-index: 2; // ensure border is behind content
-
     &:first-of-type::after,
     &:last-of-type::after {
       @include tableBorder();
@@ -71,10 +53,16 @@
     &:last-of-type::after {
       border-right: var(--outline);
     }
+
+    /* stylelint-disable */
+    &,
+    &::before,
+    &::after {
+      transition: border-radius 400ms var(--easing-default);
+    }
+    /* stylelint-enable */
   }
   &--outline tbody &__tr:last-of-type &__td {
-    z-index: 2; // ensure border is behind content
-
     &::after {
       @include tableBorder();
 
@@ -93,18 +81,35 @@
       border-radius: 0 0.5rem 0 0;
     }
   }
-  &--outline tbody &__tr:last-of-type &__td:first-of-type {
+  &--outline tbody &__tr:last-of-type &__td:first-of-type,
+  &--outline
+    tbody
+    &__tr#{&}__tr--has-accordion-content:not(#{&}__tr--expanded):nth-last-child(2)
+    &__td:first-of-type {
     &,
+    &::before,
     &::after {
       border-radius: 0 0 0 0.5rem;
     }
   }
-  &--outline tbody &__tr:last-of-type &__td:last-of-type {
+  &--outline tbody &__tr:last-of-type &__td:last-of-type,
+  &--outline
+    tbody
+    &__tr#{&}__tr--has-accordion-content:not(#{&}__tr--expanded):nth-last-child(2)
+    &__td:last-of-type {
     &,
+    &::before,
     &::after {
       border-radius: 0 0 0.5rem 0;
     }
   }
+  &--outline tbody &__tr#{&}__tr__accordion_content:last-of-type &__td {
+    &,
+    &::before,
+    &::after {
+      border-radius: 0 0 0.5rem 0.5rem;
+    }
+  }
 
   // spacing
   &__td--no-spacing,
diff --git a/packages/dnb-eufemia/src/components/table/style/_table-tr.scss b/packages/dnb-eufemia/src/components/table/style/_table-tr.scss
index e1725fab6de..ebbaab54e87 100644
--- a/packages/dnb-eufemia/src/components/table/style/_table-tr.scss
+++ b/packages/dnb-eufemia/src/components/table/style/_table-tr.scss
@@ -20,11 +20,17 @@
     background-color: var(--color-white);
   }
 
-  &--outline thead &__tr:first-of-type {
+  &--outline thead &__tr:first-of-type,
+  &--outline
+    tbody
+    &__tr#{&}__tr--has-accordion-content:not(#{&}__tr--expanded):nth-last-child(2) {
     // use clip-path, because border-radius does not clip on tr's
     clip-path: inset(0 round 0.5rem 0.5rem 0 0);
   }
-  &--outline tbody &__tr:last-of-type {
+  &--outline tbody &__tr:last-of-type,
+  &--outline
+    tbody
+    &__tr#{&}__tr--has-accordion-content:not(#{&}__tr--expanded):nth-last-child(2) {
     // use clip-path, because border-radius does not clip on tr's
     clip-path: inset(0 round 0 0 0.5rem 0.5rem);
   }
diff --git a/packages/dnb-eufemia/src/components/table/style/_table.scss b/packages/dnb-eufemia/src/components/table/style/_table.scss
index 039503b0e74..d1144a35d9d 100644
--- a/packages/dnb-eufemia/src/components/table/style/_table.scss
+++ b/packages/dnb-eufemia/src/components/table/style/_table.scss
@@ -3,6 +3,18 @@
 *
 */
 
+@mixin tableBorder {
+  content: '';
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  z-index: 1;
+
+  pointer-events: none;
+}
+
 @import './_table-header-buttons.scss';
 @import './_table-th.scss';
 @import './_table-td.scss';
diff --git a/packages/dnb-eufemia/src/components/table/style/themes/dnb-table-theme-ui.scss b/packages/dnb-eufemia/src/components/table/style/themes/dnb-table-theme-ui.scss
index dd7056785cb..c9d476e1995 100644
--- a/packages/dnb-eufemia/src/components/table/style/themes/dnb-table-theme-ui.scss
+++ b/packages/dnb-eufemia/src/components/table/style/themes/dnb-table-theme-ui.scss
@@ -89,21 +89,17 @@
   // &:not(#{&}--border):not(#{&}--outline) > thead > &__tr > &__th::after,
 
   // border
-  &:not(#{&}--border):not(#{&}--outline)
+  & > tbody > &__tr:last-of-type > &__td::after,
+  &
     > tbody
-    > tr:last-of-type
-    > td::after,
-  &:not(#{&}--border):not(#{&}--outline)
-    > tbody
-    > &__tr:last-of-type
-    > &__td::after {
+    > &__tr#{&}__tr--has-accordion-content:not(#{&}__tr--expanded):nth-last-child(2)
+    td::after {
     content: '';
     position: absolute;
     left: 0;
     right: 0;
-    bottom: -0.0625rem;
+    bottom: 0; // don't use negative value, else it will be hidden when accordion
 
-    height: 0.0625rem;
-    background-color: var(--color-black-8);
+    border-bottom: var(--outline);
   }
 }