Partial Rhode Island EITC refundability pre-2015

changelog_entry.yaml

@@ -0,0 +1,4 @@
+- bump: minor
+  changes:
+    added:
+    - Partial Rhode Island EITC refundability pre-2015

policyengine_us/parameters/gov/states/ri/tax/income/credits/eitc/refundable.yaml

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+description: Rhode Island provide this percent of refundable earned-income credit
+values:
+  2011-01-01: 0.15
+  2015-01-01: 1
+metadata:
+  unit: /1
+  label: Rhode Island refundable EITC
+  reference:
+    - title: 44-30-2.6. Rhode Island taxable income — Rate of tax. (N)(2)
+      href: https://webserver.rilegislature.gov/Statutes/TITLE44/44-30/44-I/44-30-2.6.htm
+    - title: 2011 Form RI-1040 - RI SCHEDULE EIC 
+      href: https://tax.ri.gov/sites/g/files/xkgbur541/files/forms/2011/Income/2011-Resident-Booklet-FINAL.pdf#page=4
+    - title: 2015 Form RI-1040 - RI SCHEDULE EIC 
+      href: https://tax.ri.gov/sites/g/files/xkgbur541/files/forms/2015/Income/2015-1040_hhh.pdf#page=2

policyengine_us/parameters/gov/states/ri/tax/income/credits/refundable.yaml

@@ -1,10 +1,10 @@
 description: Rhode Island provides these refundable income tax credits.
 values:
   2021-01-01:
-    - ri_eitc
+    - ri_refundable_eitc
     - ri_property_tax_credit
   2022-01-01:
-    - ri_eitc
+    - ri_refundable_eitc
     - ri_property_tax_credit
     - ri_child_tax_rebate
 

policyengine_us/tests/policy/baseline/gov/states/ri/tax/income/credits/eitc/ri_refundable_eitc.yaml

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+- name: 2014 Refundable EITC
+  period: 2014
+  input:
+    state_code: RI
+    ri_eitc: 500
+    ri_income_tax_before_refundable_credits: 600
+  output:
+    ri_refundable_eitc: 0 # 500 < 600
+
+- name: 2014 Refundable EITC 2
+  period: 2014
+  input:
+    state_code: RI
+    ri_eitc: 600
+    ri_income_tax_before_refundable_credits: 500
+  output:
+    ri_refundable_eitc: 15 #((600 - 500) * 0.15)
+
+- name: 2015 Refundable EITC
+  period: 2015
+  input:
+    state_code: RI
+    ri_eitc: 500
+    ri_income_tax_before_refundable_credits: 600
+  output:
+    ri_refundable_eitc: 0 # 500 < 600
+
+- name: 2015 Refundable EITC 2
+  period: 2015
+  input:
+    state_code: RI
+    ri_eitc: 600
+    ri_income_tax_before_refundable_credits: 500
+  output:
+    ri_refundable_eitc: 100 #((600 - 500) * 1)
+
+

policyengine_us/variables/gov/states/ri/tax/income/credits/eitc/ri_refundable_eitc.py

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+from policyengine_us.model_api import *
+
+
+class ri_refundable_eitc(Variable):
+    value_type = float
+    entity = TaxUnit
+    label = "Rhode Island refundable earned income tax credit"
+    unit = USD
+
+    definition_period = YEAR
+    reference = (
+        "https://tax.ri.gov/sites/g/files/xkgbur541/files/forms/2014/Income/2014-1040_h.pdf"  # Calculation see RI SCHEDULE EIC
+        "https://webserver.rilegislature.gov/Statutes/TITLE44/44-30/44-I/44-30-2.6.htm"
+    )
+    defined_for = StateCode.RI
+
+    def formula(tax_unit, period, parameters):
+        ri_eitc = tax_unit("ri_eitc", period)
+        ri_income_tax_before_refundable_credits = tax_unit(
+            "ri_income_tax_before_refundable_credits", period
+        )
+        p = parameters(period).gov.states.ri.tax.income.credits.eitc
+        # refundable earned-income credit is the percent of the amount by which the Rhode Island earned-income credit exceeds the Rhode Island income tax.
+        return max(
+            0,
+            p.refundable
+            * (
+                ri_eitc - min(ri_eitc, ri_income_tax_before_refundable_credits)
+            ),
+        )
+
+        #
+        # return max(
+        #     0,
+        #     p.refundable
+        #     * (
+        #         ri_eitc - min(ri_eitc, ri_income_tax_before_refundable_credits)
+        #     ),
+        # ) + min(ri_eitc, ri_income_tax_before_refundable_credits)