diff --git a/tests/test_config.py b/tests/test_config.py
index 65743b39e1308619f8d2eb21b8dbf8d49d46501d..3faea8721b264fa0fc655e4f6048ec2711612c3f 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -342,3 +342,40 @@ def test_load_file_error(tmp_path, path_func):
 def test_no_books_path():
     config = config_mod.Config()
     assert config.books_path() is None
+
+@pytest.mark.parametrize('value,month,day', [
+    ('2', 2, 1),
+    ('3 ', 3, 1),
+    ('  4', 4, 1),
+    (' 5 ', 5, 1),
+    ('6 1', 6, 1),
+    ('  06  03  ', 6, 3),
+    ('6-05', 6, 5),
+    ('06 - 10', 6, 10),
+    ('6/15', 6, 15),
+    ('06  /  20', 6, 20),
+    ('10.25', 10, 25),
+    (' 10 . 30 ', 10, 30),
+])
+def test_fiscal_year_begin(value, month, day):
+    config = config_mod.Config()
+    config.load_string(f'[Beancount]\nfiscal year begin = {value}\n')
+    assert config.fiscal_year_begin() == (month, day)
+
+@pytest.mark.parametrize('value', [
+    'text',
+    '1900',
+    '13',
+    '010',
+    '2 30',
+    '4-31',
+])
+def test_bad_fiscal_year_begin(value):
+    config = config_mod.Config()
+    config.load_string(f'[Beancount]\nfiscal year begin = {value}\n')
+    with pytest.raises(ValueError):
+        config.fiscal_year_begin()
+
+def test_default_fiscal_year_begin():
+    config = config_mod.Config()
+    assert config.fiscal_year_begin() == (3, 1)