diff --git a/pyproject.toml b/pyproject.toml
index 4e5113d5b..211ad9ded 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -209,12 +209,8 @@ per-file-ignores."src/ttsim/typing.py" = [
   "PYI051", # Redundant literal union
 ]
 per-file-ignores."src_mettsim/mettsim/middle_earth/**/*.py" = [
-  "E721",    # Type comparison using ==
-  "PLR1714", # Repeated equality comparison
-  "PLR1716", # Boolean chained comparison
   "PLR2004", # Magic value comparison
-  "RET",     # Unnecessary return logic
-  "SIM108",  # Use ternary operator
+  "RET505",  # Vectorizer requires both if/else branches; it rejects the early-return form
 ]
 per-file-ignores."src_mettsim/tests_middle_earth/*.py" = [
   "ANN",     # Missing type annotations
@@ -236,11 +232,9 @@ per-file-ignores."tests/interface_dag_elements/test_failures.py" = [
   "E501", # Line too long
 ]
 per-file-ignores."tests/tt/test_vectorization.py" = [
-  "E721",    # Type comparison using ==
-  "PLR1714", # Repeated equality comparison
-  "PLR1716", # Boolean chained comparison
-  "RET",     # Unnecessary return logic
-  "SIM108",  # Use ternary operator
+  "RET504", # `out = ...; return out` fixtures mirror the vectorizer's output
+  "RET505", # Vectorizer requires both if/else branches; it rejects the early-return form
+  "SIM108", # Statement-style if/else blocks are intentional fixtures for the vectorizer
 ]
 pydocstyle.convention = "google"
 
diff --git a/src_mettsim/mettsim/middle_earth/payroll_tax/child_tax_credit/child_tax_credit.py b/src_mettsim/mettsim/middle_earth/payroll_tax/child_tax_credit/child_tax_credit.py
index 14de99b22..233f26b61 100644
--- a/src_mettsim/mettsim/middle_earth/payroll_tax/child_tax_credit/child_tax_credit.py
+++ b/src_mettsim/mettsim/middle_earth/payroll_tax/child_tax_credit/child_tax_credit.py
@@ -29,10 +29,7 @@ def claim_of_child_y(
     child_eligible: bool,
     schedule: dict[str, float],
 ) -> float:
-    if child_eligible:
-        return schedule["child_amount_y"]
-    else:
-        return 0
+    return schedule["child_amount_y"] if child_eligible else 0
 
 
 @policy_function()
diff --git a/src_mettsim/mettsim/middle_earth/wealth_tax/wealth_tax.py b/src_mettsim/mettsim/middle_earth/wealth_tax/wealth_tax.py
index 4b681ba15..c4c4227dc 100644
--- a/src_mettsim/mettsim/middle_earth/wealth_tax/wealth_tax.py
+++ b/src_mettsim/mettsim/middle_earth/wealth_tax/wealth_tax.py
@@ -9,10 +9,7 @@ def amount_y(
     tax_rate: float,
     exempt_from_wealth_tax: bool,
 ) -> float:
-    if exempt_from_wealth_tax:
-        return 0.0
-    else:
-        return wealth * tax_rate
+    return 0.0 if exempt_from_wealth_tax else wealth * tax_rate
 
 
 @policy_function()