diff --git a/pkgs/development/python-modules/simplefin4py/default.nix b/pkgs/development/python-modules/simplefin4py/default.nix
new file mode 100644
index 000000000000..485079e15b75
--- /dev/null
+++ b/pkgs/development/python-modules/simplefin4py/default.nix
@@ -0,0 +1,52 @@
+{
+  aiohttp,
+  aioresponses,
+  buildPythonPackage,
+  dataclasses-json,
+  fetchFromGitHub,
+  lib,
+  poetry-core,
+  pytest-asyncio,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "simplefin4py";
+  version = "0.0.18";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "jeeftor";
+    repo = "SimpleFin4py";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-S+E2zwvrXN0YDY6IxplG0D15zSoeUPMyQt2oyM3QB2Q=";
+  };
+
+  build-system = [ poetry-core ];
+
+  propagatedBuildInputs = [
+    aiohttp
+    dataclasses-json
+  ];
+
+  pythonImportsCheck = [ "simplefin4py" ];
+
+  nativeCheckInputs = [
+    aioresponses
+    pytest-asyncio
+    pytestCheckHook
+  ];
+
+  disabledTests = [
+    # fails in non-UTC time zones
+    "test_dates"
+  ];
+
+  meta = {
+    changelog = "https://github.com/jeeftor/simplefin4py/releases/tag/v${version}";
+    description = "Python API for Accessing SimpleFIN";
+    homepage = "https://github.com/jeeftor/SimpleFin4py";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ dotlambda ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 422e065b164f..9c61aad1c16e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -14344,6 +14344,8 @@ self: super: with self; {
 
   simpleeval = callPackage ../development/python-modules/simpleeval { };
 
+  simplefin4py = callPackage ../development/python-modules/simplefin4py { };
+
   simplefix = callPackage ../development/python-modules/simplefix { };
 
   simplegeneric = callPackage ../development/python-modules/simplegeneric { };