diff --git a/changelog_entry.yaml b/changelog_entry.yaml
index e69de29bb..73f27e810 100644
--- a/changelog_entry.yaml
+++ b/changelog_entry.yaml
@@ -0,0 +1,5 @@
+- bump: patch
+  changes:
+    fixed:
+    - Corrected the is_parent variable to properly identify parents.
+    - Fixed logic in childcare programs to ensure accurate calculations.
\ No newline at end of file
diff --git a/policyengine_uk/parameters/gov/dfe/weeks_per_year.yaml b/policyengine_uk/parameters/gov/dfe/weeks_per_year.yaml
new file mode 100644
index 000000000..52d25a49e
--- /dev/null
+++ b/policyengine_uk/parameters/gov/dfe/weeks_per_year.yaml
@@ -0,0 +1,14 @@
+description: The Department for Education provides targeted, extended, and universal childcare entitlement for these weeks per year.
+metadata:
+  period: year
+  unit: week
+  label: childcare entitlement weeks per year
+  reference:
+    - title: The Local Authority (Duty to Secure Early Years Provision Free of Charge) Regulations 2014 - regulation 4
+      href: https://www.legislation.gov.uk/uksi/2014/2147/regulation/4/made
+    - title: Childcare Choices document - 15 and 30 hours childcare support
+      href: https://www.childcarechoices.gov.uk/15-and-30-hours-childcare-support/working-families/eligibility
+    - title: Childcare (Early Years Provision Free of Charge) (Extended Entitlement) Regulations 2016 - Regulation 35(3)
+      href: https://www.legislation.gov.uk/uksi/2016/1257/part/4/made    
+values:
+  2016-01-01: 38
\ No newline at end of file
diff --git a/policyengine_uk/tests/policy/baseline/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement.yaml b/policyengine_uk/tests/policy/baseline/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement.yaml
index 287af4c21..cdc9875c6 100644
--- a/policyengine_uk/tests/policy/baseline/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement.yaml
+++ b/policyengine_uk/tests/policy/baseline/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement.yaml
@@ -103,4 +103,37 @@
         members: [child1]
         extended_childcare_entitlement_eligible: false
   output:
-    extended_childcare_entitlement: 0  # Not eligible
\ No newline at end of file
+    extended_childcare_entitlement: 0  # Not eligible
+
+- name: Child using fewer hours than maximum entitlement
+  period: 2025
+  absolute_error_margin: 1
+  input:
+    people:
+      child1:
+        age: 3
+        max_free_entitlement_hours_used: 20
+    benunits:
+      benunit1:
+        members: [child1]
+        extended_childcare_entitlement_eligible: true
+  output:
+    extended_childcare_entitlement: 4611.457  # 20 hours * 38 weeks * £6.07 per hour (2025 rate)
+
+- name: Child using fewer hours than maximum entitlement - multiple children
+  period: 2025
+  absolute_error_margin: 100
+  input:
+    people:
+      child1:
+        age: 2
+        max_free_entitlement_hours_used: 10
+      child2:
+        age: 3
+        max_free_entitlement_hours_used: 15
+    benunits:
+      benunit1:
+        members: [child1, child2]
+        extended_childcare_entitlement_eligible: true
+  output:
+    extended_childcare_entitlement: 6705.43  # (10 hours * 38 weeks * £8.58 per hour) + (15 hours * 38 weeks * £6.07 per hour) for 2025 rates
\ No newline at end of file
diff --git a/policyengine_uk/tests/policy/baseline/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement.yaml b/policyengine_uk/tests/policy/baseline/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement.yaml
new file mode 100644
index 000000000..cdf663efd
--- /dev/null
+++ b/policyengine_uk/tests/policy/baseline/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement.yaml
@@ -0,0 +1,80 @@
+- name: Child under 2 (ineligible) 
+  period: 2024
+  input:
+    people:
+      child:
+        age: 1
+    benunits:
+      benunit:
+        members: [child]
+        targeted_childcare_entitlement_eligible: False
+  output:
+    targeted_childcare_entitlement: 0.0
+
+- name: Child aged 2 (eligible)
+  period: 2024
+  input:
+    people:
+      child:
+        age: 2
+    benunits:
+      benunit:
+        members: [child]
+        targeted_childcare_entitlement_eligible: True
+  output:
+    targeted_childcare_entitlement: 4_719.60  # 15 hours * 38 weeks * £8.28 per hour
+
+- name: Child aged 3 (not eligible by age, but has targeting)
+  period: 2024
+  input:
+    people:
+      child:
+        age: 3
+    benunits:
+      benunit:
+        members: [child]
+        targeted_childcare_entitlement_eligible: True
+  output:
+    targeted_childcare_entitlement: 0.0  # Not eligible by age even if targeting criteria met
+
+- name: Child using fewer hours than maximum entitlement
+  period: 2024
+  input:
+    people:
+      child:
+        age: 2
+        max_free_entitlement_hours_used: 10
+    benunits:
+      benunit:
+        members: [child]
+        targeted_childcare_entitlement_eligible: True
+  output:
+    targeted_childcare_entitlement: 3_146.4  # 10 hours * 38 weeks * £8.28 per hour
+
+- name: Child using exactly maximum entitlement
+  period: 2024
+  input:
+    people:
+      child:
+        age: 2
+        max_free_entitlement_hours_used: 15
+    benunits:
+      benunit:
+        members: [child]
+        targeted_childcare_entitlement_eligible: True
+  output:
+    targeted_childcare_entitlement: 4_719.6  # 15 hours * 38 weeks * £8.28 per hour
+
+- name: Child using more than maximum entitlement (capped)
+  period: 2024
+  input:
+    people:
+      child:
+        age: 2
+        max_free_entitlement_hours_used: 20
+    benunits:
+      benunit:
+        members: [child]
+        targeted_childcare_entitlement_eligible: True
+  output:
+    targeted_childcare_entitlement: 4_719.6  # Capped at 15 hours * 38 weeks * £8.28 per hour
\ No newline at end of file
diff --git a/policyengine_uk/tests/policy/baseline/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement.yaml b/policyengine_uk/tests/policy/baseline/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement.yaml
index 6dcc8c55e..9176525d1 100644
--- a/policyengine_uk/tests/policy/baseline/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement.yaml
+++ b/policyengine_uk/tests/policy/baseline/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement.yaml
@@ -1,63 +1,123 @@
 - name: Child under 3 isn't eligible (person-level)
   period: 2024
   input:
-    age: 2
-    universal_childcare_entitlement_eligible: False
+    people:
+      child:
+        age: 2
+        universal_childcare_entitlement_eligible: False
   output:
     universal_childcare_entitlement: 0.0
 
 - name: Child aged 3 is eligible (person-level)
   period: 2024
   input:
-    age: 3
-    universal_childcare_entitlement_eligible: True
+    people:
+      child:
+        age: 3
+        universal_childcare_entitlement_eligible: True
   output:
-    universal_childcare_entitlement: 3351.60
+    universal_childcare_entitlement: 3_351.60
 
 - name: Child aged 4 is eligible (person-level)
   period: 2024
   input:
-    age: 4
-    universal_childcare_entitlement_eligible: True
+    people:
+      child:
+        age: 4
+        universal_childcare_entitlement_eligible: True
   output:
-    universal_childcare_entitlement: 3351.60
+    universal_childcare_entitlement: 3_351.60
 
 - name: Parent (ineligible)
   period: 2024
   input:
-    age: 35
-    universal_childcare_entitlement_eligible: False
+    people:
+      parent:
+        age: 35
+        universal_childcare_entitlement_eligible: False
   output:
     universal_childcare_entitlement: 0.0
 
 - name: Child aged 2 (ineligible)
   period: 2024
   input:
-    age: 2
-    universal_childcare_entitlement_eligible: False
+    people:
+      child:
+        age: 2
+        universal_childcare_entitlement_eligible: False
   output:
     universal_childcare_entitlement: 0.0
 
 - name: Child aged 3 (eligible)
   period: 2024
   input:
-    age: 3
-    universal_childcare_entitlement_eligible: True
+    people:
+      child:
+        age: 3
+        universal_childcare_entitlement_eligible: True
   output:
-    universal_childcare_entitlement: 3351.60
+    universal_childcare_entitlement: 3_351.60
 
 - name: Child aged 4 (eligible)
   period: 2024
   input:
-    age: 4
-    universal_childcare_entitlement_eligible: True
+    people:
+      child:
+        age: 4
+        universal_childcare_entitlement_eligible: True
   output:
-    universal_childcare_entitlement: 3351.60
+    universal_childcare_entitlement: 3_351.60
 
 - name: Child aged 5 (ineligible)
   period: 2024
   input:
-    age: 5
-    universal_childcare_entitlement_eligible: False
+    people:
+      child:
+        age: 5
+        universal_childcare_entitlement_eligible: False
   output:
-    universal_childcare_entitlement: 0.0
\ No newline at end of file
+    universal_childcare_entitlement: 0.0
+
+- name: Child using fewer hours than maximum entitlement
+  period: 2024
+  input:
+    people:
+      child:
+        age: 3
+        universal_childcare_entitlement_eligible: True
+        max_free_entitlement_hours_used: 10
+  output:
+    universal_childcare_entitlement: 2_234.4  # 10 hours * 38 weeks * £5.88 per hour
+
+- name: Child using half of maximum entitlement
+  period: 2024
+  input:
+    people:
+      child:
+        age: 3
+        universal_childcare_entitlement_eligible: True
+        max_free_entitlement_hours_used: 15
+  output:
+    universal_childcare_entitlement: 3_351.6  # 15 hours * 38 weeks * £5.88 per hour
+
+- name: Child using exactly maximum entitlement
+  period: 2024
+  input:
+    people:
+      child:
+        age: 4
+        universal_childcare_entitlement_eligible: True
+        max_free_entitlement_hours_used: 15
+  output:
+    universal_childcare_entitlement: 3_351.6  # 15 hours * 38 weeks * £5.88 per hour
+
+- name: Child using more than maximum entitlement (capped)
+  period: 2024
+  input:
+    people:
+      child:
+        age: 3
+        universal_childcare_entitlement_eligible: True
+        max_free_entitlement_hours_used: 20
+  output:
+    universal_childcare_entitlement: 3_351.6  # Capped at 15 hours * 38 weeks * £5.88 per hour
\ No newline at end of file
diff --git a/policyengine_uk/variables/gov/dfe/care_to_learn/care_to_learn_eligible.py b/policyengine_uk/variables/gov/dfe/care_to_learn/care_to_learn_eligible.py
index 4f75d59a8..8e5d70a2e 100644
--- a/policyengine_uk/variables/gov/dfe/care_to_learn/care_to_learn_eligible.py
+++ b/policyengine_uk/variables/gov/dfe/care_to_learn/care_to_learn_eligible.py
@@ -6,6 +6,7 @@ class care_to_learn_eligible(Variable):
     entity = Person
     label = "eligible for Care to Learn childcare support"
     definition_period = YEAR
+    defined_for = "would_claim_care_to_learn"
 
     def formula(person, period, parameters):
         # Link for instruction: https://www.gov.uk/care-to-learn/eligibility
diff --git a/policyengine_uk/variables/gov/dfe/care_to_learn/would_claim_care_to_learn.py b/policyengine_uk/variables/gov/dfe/care_to_learn/would_claim_care_to_learn.py
new file mode 100644
index 000000000..b6a7fad53
--- /dev/null
+++ b/policyengine_uk/variables/gov/dfe/care_to_learn/would_claim_care_to_learn.py
@@ -0,0 +1,12 @@
+from policyengine_uk.model_api import *
+
+
+class would_claim_care_to_learn(Variable):
+    value_type = bool
+    entity = BenUnit
+    label = "would claim Care to Learn"
+    documentation = (
+        "Whether this BenUnit would claim Care to Learn if eligible"
+    )
+    definition_period = YEAR
+    default_value = True
diff --git a/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement.py b/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement.py
index b95066c39..cbc4fe0e2 100644
--- a/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement.py
+++ b/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement.py
@@ -19,13 +19,19 @@ def formula(benunit, period, parameters):
             age
         )
 
+        # Get max hours used per child
+        max_hours_used = benunit.members(
+            "max_free_entitlement_hours_used", period
+        )
+
+        # Use the appropriate hours based on the condition
+        weekly_hours_to_use = min_(max_hours_used, weekly_hours_per_child)
+
         # Compute weekly subsidy per child
         weekly_subsidy_per_child = (
-            weekly_hours_per_child * p.childcare_funding_rate.calc(age)
+            weekly_hours_to_use * p.childcare_funding_rate.calc(age)
         )
 
         # Compute total annual expenses
-        return (
-            benunit.sum(weekly_subsidy_per_child)
-            * p.extended_childcare_entitlement.weeks_per_year
-        )
+        weeks = p.weeks_per_year
+        return benunit.sum(weekly_subsidy_per_child) * weeks
diff --git a/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement_eligible.py b/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement_eligible.py
index 1238d2c4b..c7bc26dce 100644
--- a/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement_eligible.py
+++ b/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/extended_childcare_entitlement_eligible.py
@@ -6,6 +6,7 @@ class extended_childcare_entitlement_eligible(Variable):
     entity = BenUnit
     label = "eligibility for extended childcare entitlement"
     definition_period = YEAR
+    defined_for = "would_claim_extended_childcare"
 
     def formula(benunit, period, parameters):
         # Check if household is in England
diff --git a/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/would_claim_extended_childcare.py b/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/would_claim_extended_childcare.py
new file mode 100644
index 000000000..070c50542
--- /dev/null
+++ b/policyengine_uk/variables/gov/dfe/extended_childcare_entitlement/would_claim_extended_childcare.py
@@ -0,0 +1,10 @@
+from policyengine_uk.model_api import *
+
+
+class would_claim_extended_childcare(Variable):
+    value_type = bool
+    entity = BenUnit
+    label = "would claim extended childcare entitlement"
+    documentation = "Whether this family would claim extended childcare entitlement if eligible"
+    definition_period = YEAR
+    default_value = True
diff --git a/policyengine_uk/variables/gov/dfe/max_free_entitlement_hours_used.py b/policyengine_uk/variables/gov/dfe/max_free_entitlement_hours_used.py
new file mode 100644
index 000000000..3dc51f346
--- /dev/null
+++ b/policyengine_uk/variables/gov/dfe/max_free_entitlement_hours_used.py
@@ -0,0 +1,10 @@
+from policyengine_uk.model_api import *
+
+
+class max_free_entitlement_hours_used(Variable):
+    value_type = float
+    entity = Person
+    label = "maximum hours of free childcare entitlement used"
+    documentation = "The maximum weekly hours of free childcare entitlement used by the person"
+    definition_period = YEAR
+    default_value = 30
diff --git a/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement.py b/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement.py
index 0f20aafb7..c5e3e7ef4 100644
--- a/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement.py
+++ b/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement.py
@@ -19,4 +19,9 @@ def formula(person, period, parameters):
             p.targeted_childcare_entitlement.hours_entitlement
             * eligible_by_age
         )
-        return hours * p.childcare_funding_rate.calc(age)
+        max_hours_used = person("max_free_entitlement_hours_used", period)
+        weeks = p.weeks_per_year
+        total_hours_used = max_hours_used * weeks
+
+        hours_to_use = min_(total_hours_used, hours)
+        return hours_to_use * p.childcare_funding_rate.calc(age)
diff --git a/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement_eligible.py b/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement_eligible.py
index 4bee5e243..47be60f5e 100644
--- a/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement_eligible.py
+++ b/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/targeted_childcare_entitlement_eligible.py
@@ -6,6 +6,7 @@ class targeted_childcare_entitlement_eligible(Variable):
     entity = BenUnit
     label = "eligibility for targeted childcare entitlement"
     definition_period = YEAR
+    defined_for = "would_claim_targeted_childcare"
 
     def formula(benunit, period, parameters):
 
@@ -16,6 +17,12 @@ def formula(benunit, period, parameters):
         # Get parameters
         p = parameters(period).gov.dfe.targeted_childcare_entitlement
 
+        # Check if household has extended childcare. If so, they are not eligible. Combining extended childcare and targeted childcare is not allowed.
+        # https://www.childcarechoices.gov.uk/combining-schemes
+        has_extended_childcare = benunit(
+            "extended_childcare_entitlement_eligible", period
+        )
+
         # Check if household receives any qualifying benefits
         has_qualifying_benefits = (
             add(benunit, period, p.qualifying_benefits) > 0
@@ -24,4 +31,8 @@ def formula(benunit, period, parameters):
         # Check if household meets any additional qualifying criteria
         # from qualifying_criteria.yaml (UC/TC specific criteria)
         meets_any_criteria = add(benunit, period, p.qualifying_criteria) > 0
-        return in_england & (has_qualifying_benefits | meets_any_criteria)
+        return (
+            in_england
+            & (has_qualifying_benefits | meets_any_criteria)
+            & ~has_extended_childcare
+        )
diff --git a/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/would_claim_targeted_childcare.py b/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/would_claim_targeted_childcare.py
new file mode 100644
index 000000000..bb755228f
--- /dev/null
+++ b/policyengine_uk/variables/gov/dfe/targeted_childcare_entitlement/would_claim_targeted_childcare.py
@@ -0,0 +1,10 @@
+from policyengine_uk.model_api import *
+
+
+class would_claim_targeted_childcare(Variable):
+    value_type = bool
+    entity = BenUnit
+    label = "would claim targeted childcare entitlement"
+    documentation = "Whether this family would claim targeted childcare entitlement if eligible"
+    definition_period = YEAR
+    default_value = True
diff --git a/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement.py b/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement.py
index 6a65101a9..1e6ebf520 100644
--- a/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement.py
+++ b/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement.py
@@ -13,4 +13,9 @@ def formula(person, period, parameters):
         p = parameters(period).gov.dfe
         age = person("age", period)
         hours = p.universal_childcare_entitlement.hours
-        return hours * p.childcare_funding_rate.calc(age)
+        max_hours_used = person("max_free_entitlement_hours_used", period)
+        weeks = p.weeks_per_year
+        total_hours_used = max_hours_used * weeks
+
+        hours_to_use = min_(total_hours_used, hours)
+        return hours_to_use * p.childcare_funding_rate.calc(age)
diff --git a/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement_eligible.py b/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement_eligible.py
index 811f34a75..9e6a9892f 100644
--- a/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement_eligible.py
+++ b/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/universal_childcare_entitlement_eligible.py
@@ -6,6 +6,7 @@ class universal_childcare_entitlement_eligible(Variable):
     entity = Person
     label = "eligible for universal childcare entitlement"
     definition_period = YEAR
+    defined_for = "would_claim_universal_childcare"
 
     def formula(person, period, parameters):
         country = person.household("country", period)
@@ -18,6 +19,18 @@ def formula(person, period, parameters):
         p = parameters(period).gov.dfe.universal_childcare_entitlement
         meets_age_condition = (age >= p.min_age) & (age < p.max_age)
         not_compulsory_age = ~person("is_of_compulsory_school_age", period)
+
+        # Check if person has extended childcare. If so, they are not eligible. Combining extended childcare and universal childcare is not allowed.
+        # https://www.childcarechoices.gov.uk/combining-schemes
+        has_extended_childcare = person.benunit(
+            "extended_childcare_entitlement_eligible", period
+        )
+
         # Section 7 of the Childcare Act 2006
         # The regulation above limits free early years provision to children under compulsory school age.
-        return in_england & meets_age_condition & not_compulsory_age
+        return (
+            in_england
+            & meets_age_condition
+            & not_compulsory_age
+            & ~has_extended_childcare
+        )
diff --git a/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/would_claim_universal_childcare.py b/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/would_claim_universal_childcare.py
new file mode 100644
index 000000000..b6066b4bc
--- /dev/null
+++ b/policyengine_uk/variables/gov/dfe/universal_childcare_entitlement/would_claim_universal_childcare.py
@@ -0,0 +1,10 @@
+from policyengine_uk.model_api import *
+
+
+class would_claim_universal_childcare(Variable):
+    value_type = bool
+    entity = BenUnit
+    label = "would claim universal childcare entitlement"
+    documentation = "Whether this BenUnit would claim universal childcare entitlement if eligible"
+    definition_period = YEAR
+    default_value = True
diff --git a/policyengine_uk/variables/gov/hmrc/tax_free_childcare/tax_free_childcare_eligibility.py b/policyengine_uk/variables/gov/hmrc/tax_free_childcare/tax_free_childcare_eligibility.py
index d3ac579c3..92686b15b 100644
--- a/policyengine_uk/variables/gov/hmrc/tax_free_childcare/tax_free_childcare_eligibility.py
+++ b/policyengine_uk/variables/gov/hmrc/tax_free_childcare/tax_free_childcare_eligibility.py
@@ -6,6 +6,7 @@ class tax_free_childcare_eligible(Variable):
     entity = BenUnit
     label = "overall eligibility for tax-free childcare"
     definition_period = YEAR
+    defined_for = "would_claim_tfc"
 
     def formula(benunit, period, parameters):
         meets_age_condition = benunit.any(
diff --git a/policyengine_uk/variables/gov/hmrc/tax_free_childcare/would_claim_tfc.py b/policyengine_uk/variables/gov/hmrc/tax_free_childcare/would_claim_tfc.py
new file mode 100644
index 000000000..2a623372c
--- /dev/null
+++ b/policyengine_uk/variables/gov/hmrc/tax_free_childcare/would_claim_tfc.py
@@ -0,0 +1,12 @@
+from policyengine_uk.model_api import *
+
+
+class would_claim_tfc(Variable):
+    value_type = bool
+    entity = BenUnit
+    label = "would claim Tax-Free Childcare"
+    documentation = (
+        "Whether this family would claim Tax-Free Childcare if eligible"
+    )
+    definition_period = YEAR
+    default_value = True
diff --git a/policyengine_uk/variables/household/demographic/is_parent.py b/policyengine_uk/variables/household/demographic/is_parent.py
index 415bae7aa..540c8202d 100644
--- a/policyengine_uk/variables/household/demographic/is_parent.py
+++ b/policyengine_uk/variables/household/demographic/is_parent.py
@@ -14,22 +14,19 @@ def formula(person, period, parameters):
 
         # Find two oldest members
         benunit_ages = benunit.members("age", period)
-        first_highest = benunit.max(benunit_ages)
-        second_highest = benunit.max(
-            where(benunit_ages < first_highest, benunit_ages, -np.inf)
-        )
+        adult_index = person("adult_index", period)
 
         # Get family types enum
         family_types = family_type.possible_values
 
         # For lone parents (FamilyType.LONE_PARENT), only the eldest is parent
         is_lone_parent = (family_type == family_types.LONE_PARENT) & (
-            age == first_highest
+            adult_index == 1
         )
 
         # For couples with children (FamilyType.COUPLE_WITH_CHILDREN), two eldest are parents
         is_couple_parent = (
             family_type == family_types.COUPLE_WITH_CHILDREN
-        ) & ((age == first_highest) | (age == second_highest))
+        ) & ((adult_index == 1) | (adult_index == 2))
 
         return is_lone_parent | is_couple_parent