diff --git a/.github/workflows/release-acceptance.yml b/.github/workflows/release-acceptance.yml
new file mode 100644
index 000000000..049bb2866
--- /dev/null
+++ b/.github/workflows/release-acceptance.yml
@@ -0,0 +1,91 @@
+name: Release acceptance
+
+on:
+  push:
+    tags: ['v*']
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    name: Build tagged release evidence
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+          ref: ${{ github.sha }}
+
+      - name: Verify exact checked-out revision
+        env:
+          EXPECTED_SHA: ${{ github.sha }}
+        run: test "$(git rev-parse HEAD)" = "$EXPECTED_SHA"
+
+      - name: Use preinstalled Temurin JDK 21
+        run: |
+          echo "JAVA_HOME=$JAVA_HOME_21_X64" >> "$GITHUB_ENV"
+          echo "$JAVA_HOME_21_X64/bin" >> "$GITHUB_PATH"
+
+      - name: Bind tag to Maven version with pinned help:evaluate -Dexpression=project.version
+        shell: bash
+        run: |
+          set -euo pipefail
+          PROJECT_VERSION="$(mvn -q --no-transfer-progress org.apache.maven.plugins:maven-help-plugin:3.5.1:evaluate -Dexpression=project.version -DforceStdout)"
+          test -n "$PROJECT_VERSION"
+          test "$GITHUB_REF_NAME" = "v$PROJECT_VERSION"
+          printf '%s\n' "$PROJECT_VERSION" > "$RUNNER_TEMP/clearfolio-project-version"
+
+      - name: Run authoritative Maven acceptance
+        run: mvn -B --no-transfer-progress verify
+
+      - name: Generate CycloneDX SBOM
+        run: mvn -B --no-transfer-progress org.cyclonedx:cyclonedx-maven-plugin:2.9.1:makeAggregateBom
+
+      - name: Enforce buyer-release license policy
+        run: |
+          python3 scripts/check_sbom_license_policy.py \
+            --sbom target/bom.json \
+            --policy docs/security/2026-07-02-license-policy.json \
+            --summary target/license-policy.json \
+            --require-no-review
+
+      - name: Build immutable release evidence bundle
+        shell: bash
+        env:
+          SOURCE_REVISION: ${{ github.sha }}
+        run: |
+          set -euo pipefail
+          PROJECT_VERSION="$(cat "$RUNNER_TEMP/clearfolio-project-version")"
+          JAR="target/clearfolio-viewer-${PROJECT_VERSION}.jar"
+          test -f "$JAR"
+          test -f target/bom.json
+          test -f target/license-policy.json
+
+          mkdir -p target/release-evidence
+          cp "$JAR" target/release-evidence/
+          cp target/bom.json target/release-evidence/sbom-cyclonedx.json
+          cp target/license-policy.json target/release-evidence/license-policy.json
+          cp pom.xml target/release-evidence/pom.xml
+          printf '%s\n' "$SOURCE_REVISION" > target/release-evidence/source-revision.txt
+          printf '%s\n' "$GITHUB_REF_NAME" > target/release-evidence/source-tag.txt
+          (
+            cd target/release-evidence
+            sha256sum \
+              "clearfolio-viewer-${PROJECT_VERSION}.jar" \
+              sbom-cyclonedx.json \
+              license-policy.json \
+              pom.xml \
+              source-revision.txt \
+              source-tag.txt \
+              > release-manifest.sha256
+          )
+
+      - name: Upload tagged release acceptance evidence
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a
+        with:
+          name: clearfolio-release-acceptance-${{ github.ref_name }}
+          path: target/release-evidence/
+          if-no-files-found: error
+          retention-days: 90
+          compression-level: 0
diff --git a/scripts/test_release_acceptance_workflow.py b/scripts/test_release_acceptance_workflow.py
new file mode 100644
index 000000000..b87622b66
--- /dev/null
+++ b/scripts/test_release_acceptance_workflow.py
@@ -0,0 +1,34 @@
+from pathlib import Path
+
+
+WORKFLOW = Path(".github/workflows/release-acceptance.yml")
+
+
+def test_release_acceptance_is_tag_scoped_and_exact_revision_bound() -> None:
+    text = WORKFLOW.read_text(encoding="utf-8")
+    assert "tags: [ 'v*' ]" in text or "tags: ['v*']" in text
+    assert "permissions:\n  contents: read" in text
+    assert "actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1" in text
+    assert "persist-credentials: false" in text
+    assert "ref: ${{ github.sha }}" in text
+    assert 'test "$(git rev-parse HEAD)" = "$EXPECTED_SHA"' in text
+
+
+def test_release_acceptance_verifies_build_sbom_license_and_tag_version() -> None:
+    text = WORKFLOW.read_text(encoding="utf-8")
+    assert "mvn -B --no-transfer-progress verify" in text
+    assert "org.cyclonedx:cyclonedx-maven-plugin:2.9.1:makeAggregateBom" in text
+    assert "scripts/check_sbom_license_policy.py" in text
+    assert "--require-no-review" in text
+    assert "help:evaluate -Dexpression=project.version" in text
+    assert "GITHUB_REF_NAME" in text
+
+
+def test_release_acceptance_persists_byte_digests_without_publish_authority() -> None:
+    text = WORKFLOW.read_text(encoding="utf-8")
+    assert "sha256sum" in text
+    assert "release-manifest.sha256" in text
+    assert "actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a" in text
+    assert "if-no-files-found: error" in text
+    assert "contents: write" not in text
+    assert "gh release" not in text