diff --git a/changelog.d/policyengine-us-1.686.1.changed.md b/changelog.d/policyengine-us-1.686.1.changed.md
new file mode 100644
index 00000000..670c0591
--- /dev/null
+++ b/changelog.d/policyengine-us-1.686.1.changed.md
@@ -0,0 +1 @@
+Update policyengine-us to 1.686.1.
diff --git a/pyproject.toml b/pyproject.toml
index 074b7fca..884328e6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ dependencies = [
     "storage3>=0.8.1",
     "policyengine>=3.2.3",
     "policyengine-uk==2.75.1",
-    "policyengine-us==1.666.1",
+    "policyengine-us==1.686.1",
     "pydantic>=2.9.2",
     "pydantic-settings>=2.6.0",
     "rich>=13.9.4",
diff --git a/uv.lock b/uv.lock
index 9edb60c8..e0962333 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1917,7 +1917,7 @@ wheels = [
 
 [[package]]
 name = "policyengine-api-v2"
-version = "0.6.4"
+version = "0.6.6"
 source = { editable = "." }
 dependencies = [
     { name = "alembic" },
@@ -1972,7 +1972,7 @@ requires-dist = [
     { name = "modal", specifier = ">=0.68.0" },
     { name = "policyengine", specifier = ">=3.2.3" },
     { name = "policyengine-uk", specifier = "==2.75.1" },
-    { name = "policyengine-us", specifier = "==1.666.1" },
+    { name = "policyengine-us", specifier = "==1.686.1" },
     { name = "psycopg2-binary", specifier = ">=2.9.10" },
     { name = "pydantic", specifier = ">=2.9.2" },
     { name = "pydantic-settings", specifier = ">=2.6.0" },
@@ -1995,7 +1995,7 @@ dev = [{ name = "pytest-asyncio", specifier = ">=1.3.0" }]
 
 [[package]]
 name = "policyengine-core"
-version = "3.25.2"
+version = "3.26.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "dpath" },
@@ -2015,9 +2015,9 @@ dependencies = [
     { name = "standard-imghdr" },
     { name = "wheel" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/d1/ed/117c487e09bc2d5dae1d39baef2d317158433f66004f38f19f6ed82110eb/policyengine_core-3.25.2.tar.gz", hash = "sha256:de80b64b969e3c6b5a3046e29e5b9f2ce56c82f874064f65556fa60c8c423f17", size = 466431, upload-time = "2026-04-21T17:37:40.654Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/4e/69/adb6407c97de5260a938344f9eafa9979bf8f97aec8c628538d906ecdec2/policyengine_core-3.26.0.tar.gz", hash = "sha256:a571026ef418653ec18f087463cf37e9be730e90ad4376cb10997f0ddf9f8eda", size = 468190, upload-time = "2026-05-04T19:26:27.707Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/a2/22/b2297927a2091a22267c112e8d5d5d2b374d0f1ce67f257816fee1388170/policyengine_core-3.25.2-py3-none-any.whl", hash = "sha256:c884961937940e16730fb473d486728ed8c66250dc65df15257ad611e6655b09", size = 231186, upload-time = "2026-04-21T17:37:39.148Z" },
+    { url = "https://files.pythonhosted.org/packages/bc/f3/0e98b30d4eb7b309c3f1f1d8c2354595f78319ce2442eda069f02a47f4d1/policyengine_core-3.26.0-py3-none-any.whl", hash = "sha256:d63a4622233b61c4c5fc64d4f65030d65b2564ac63ac87b17d545d63cdf17194", size = 232135, upload-time = "2026-05-04T19:26:25.693Z" },
 ]
 
 [[package]]
@@ -2037,7 +2037,7 @@ wheels = [
 
 [[package]]
 name = "policyengine-us"
-version = "1.666.1"
+version = "1.686.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "microdf-python" },
@@ -2047,9 +2047,9 @@ dependencies = [
     { name = "tables" },
     { name = "tqdm" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/7c/ed/779ae0f296a5652b1a27c0ff9a210d0907cb28887b693fe390e4816bcadb/policyengine_us-1.666.1.tar.gz", hash = "sha256:796fa45584a7e5795595fc31688a2df9841c35b0811dfe83dfa6df250140a2f4", size = 9309724, upload-time = "2026-04-23T22:36:52.07Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/1c/06/d0a23255386fbef24aecc9e583a86dcb797ea791d526b5a4ef90d12a12af/policyengine_us-1.686.1.tar.gz", hash = "sha256:476e4f10c00c2deb0ba250e92ac75d845ec941afd576be599a38efe281216b54", size = 9459480, upload-time = "2026-05-05T16:20:50.665Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/e6/c1/aa62214930a4ce1c0bc0906f10b19dc5d67128cfedc1b96dbd4330c113b3/policyengine_us-1.666.1-py3-none-any.whl", hash = "sha256:33ef9c7f0c72bd4d17bca922d4ab4f65b42edc4ab41c950137938880ed6de13b", size = 9589718, upload-time = "2026-04-23T22:36:48.87Z" },
+    { url = "https://files.pythonhosted.org/packages/d4/51/2ac9ac4685740e45a14db451531de151d20283bc344776a42abf54223ca8/policyengine_us-1.686.1-py3-none-any.whl", hash = "sha256:f947c284357545033ab98d9cdef215603aefdd85cfb80ca9f6c05afd5663e935", size = 9939597, upload-time = "2026-05-05T16:20:47.615Z" },
 ]
 
 [[package]]