diff --git a/tests/test_meta_payroll_type.py b/tests/test_meta_payroll_type.py
new file mode 100644
index 0000000..6c3b91e
--- /dev/null
+++ b/tests/test_meta_payroll_type.py
@@ -0,0 +1,152 @@
+"""test_meta_payroll_type.py - Unit tests for payroll-type validation hook"""
+# Copyright © 2021  Brett Smith
+# License: AGPLv3-or-later WITH Beancount-Plugin-Additional-Permission-1.0
+#
+# Full copyright and licensing details can be found at toplevel file
+# LICENSE.txt in the repository.
+
+import typing
+
+import pytest
+
+from . import testutil
+from conservancy_beancount.plugin import meta_payroll_type
+
+class HookData(typing.NamedTuple):
+    account: str
+    hook_type: typing.Type
+    valid_values: typing.Set[str]
+    invalid_values: typing.Set[str]
+
+    @classmethod
+    def from_hook(cls, hook, *valid_values):
+        return cls(hook.ACCOUNT, hook, set(valid_values), set())
+
+    @classmethod
+    def set_invalid_values(cls, datas):
+        all_values = frozenset(v for d in datas for v in d.valid_values)
+        for data in datas:
+            data.invalid_values.update(all_values.difference(data.valid_values))
+
+
+TEST_KEY = 'payroll-type'
+HOOK_DATA = [
+    HookData.from_hook(meta_payroll_type.HealthInsuranceHook,
+                       'US:HRA:Fees', 'US:HRA:Usage', 'US:Premium:Main'),
+    HookData.from_hook(meta_payroll_type.OtherBenefitsHook,
+                       'US:403b:Fees', 'US:Education', 'US:ProfessionalMembership'),
+    HookData.from_hook(
+        meta_payroll_type.SalaryHook,
+        'CA:Tax:EI',
+        'US:NY:Tax:NYC',
+        'US:Taxes:Medicare',
+        'CA:General',
+        'US:403b:Match',
+        'US:PTO',
+    ),
+    HookData.from_hook(meta_payroll_type.TaxHook,
+                       'CA:PP', 'US:IL:Unemployment', 'US:SocialSecurity'),
+]
+HookData.set_invalid_values(HOOK_DATA)
+
+@pytest.fixture(scope='module')
+def config():
+    return testutil.TestConfig()
+
+def norm_value(value):
+    return value.replace(':Taxes:', ':Tax:', 1)
+
+@pytest.mark.parametrize('hook_type,account,value', (
+    (data.hook_type, data.account, value)
+    for data in HOOK_DATA
+    for value in data.valid_values
+))
+def test_valid_value_on_post(config, hook_type, account, value):
+    txn = testutil.Transaction(postings=[
+        (account, 55, {TEST_KEY: value}),
+        ('Assets:Checking', -55),
+    ])
+    errors = list(hook_type(config).run(txn))
+    assert not errors
+    testutil.check_post_meta(txn, {TEST_KEY: norm_value(value)}, None)
+
+@pytest.mark.parametrize('hook_type,account,value', (
+    (data.hook_type, data.account, value)
+    for data in HOOK_DATA
+    for value in data.valid_values
+))
+def test_valid_value_on_txn(config, hook_type, account, value):
+    txn = testutil.Transaction(**{TEST_KEY: value}, postings=[
+        (account, 80, {TEST_KEY: value}),
+        ('Assets:Checking', -80),
+    ])
+    errors = list(hook_type(config).run(txn))
+    assert not errors
+    testutil.check_post_meta(txn, {TEST_KEY: norm_value(value)}, None)
+
+@pytest.mark.parametrize('hook_type,account,value', (
+    (data.hook_type, data.account, value)
+    for data in HOOK_DATA
+    for value in data.invalid_values
+))
+def test_invalid_value_on_post(config, hook_type, account, value):
+    txn = testutil.Transaction(flag='!', postings=[
+        (account, 90, {TEST_KEY: value}),
+        ('Assets:Checking', -90),
+    ])
+    errors = list(hook_type(config).run(txn))
+    assert errors
+    testutil.check_post_meta(txn, {TEST_KEY: value}, None)
+
+@pytest.mark.parametrize('hook_type,account,value', (
+    (data.hook_type, data.account, value)
+    for data in HOOK_DATA
+    for value in data.invalid_values
+))
+def test_invalid_value_on_txn(config, hook_type, account, value):
+    txn = testutil.Transaction(flag='!', **{TEST_KEY: value}, postings=[
+        (account, 105),
+        ('Assets:Checking', -105),
+    ])
+    errors = list(hook_type(config).run(txn))
+    assert errors
+    testutil.check_post_meta(txn, None, None)
+
+@pytest.mark.parametrize('hook_type,account', (
+    (data.hook_type, data.account)
+    for data in HOOK_DATA
+))
+def test_missing_value(config, hook_type, account):
+    txn = testutil.Transaction(flag='!', postings=[
+        (account, 115),
+        ('Assets:Checking', -115),
+    ])
+    errors = list(hook_type(config).run(txn))
+    assert errors
+
+@pytest.mark.parametrize('hook_type,account', (
+    (hook_data.hook_type, other_data.account)
+    for hook_data in HOOK_DATA
+    for other_data in HOOK_DATA
+    if other_data is not hook_data
+))
+def test_no_overlapping_account_checks(config, hook_type, account):
+    txn = testutil.Transaction(postings=[
+        (account, 120, {TEST_KEY: 'Test:Overlap'}),
+        ('Assets:Checking', -120),
+    ])
+    errors = list(hook_type(config).run(txn))
+    assert not errors
+
+@pytest.mark.parametrize('hook_data,value', testutil.combine_values(
+    HOOK_DATA,
+    testutil.FIXME_VALUES,
+))
+def test_flagged_fixme_ok(config, hook_data, value):
+    txn = testutil.Transaction(flag='!', postings=[
+        (hook_data.account, 120, {TEST_KEY: value}),
+        ('Assets:Checking', -120),
+    ])
+    errors = list(hook_data.hook_type(config).run(txn))
+    assert not errors
+    testutil.check_post_meta(txn, {TEST_KEY: value}, None)