Merge pull request #58 from finpaul/mt

Merging

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.2.6] - 2023-11-14 17:00:00
+
+### Added
+
+- Updates Montana tax logic.
+
 ## [0.2.5] - 2023-10-24 22:00:00
 
 ### Added
@@ -185,7 +191,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - First prototype version based off of openfisca-us and tax-calculator.
 
 
-
+[0.2.6]: https://github.com/TheCGO/fiscalsim-us/compare/v0.2.5...v0.2.6
 [0.2.5]: https://github.com/TheCGO/fiscalsim-us/compare/v0.2.4...v0.2.5
 [0.2.4]: https://github.com/TheCGO/fiscalsim-us/compare/v0.2.3...v0.2.4
 [0.2.3]: https://github.com/TheCGO/fiscalsim-us/compare/v0.2.2...v0.2.3

changelog.yaml

@@ -169,3 +169,8 @@
       - Updated environment.yml and build_and_test.yml to allow for python 3.11
       - Updated Virginia tax logic with correct mapping from federal filing status to state filing status.
   date: 2023-10-24 22:00:00
+- bump: patch
+  changes:
+    added:
+      - Updates Montana tax logic
+  date: 2023-11-14 17:00:00

fiscalsim_us/parameters/gov/states/mt/tax/income/deductions/itemized/itemized_deductions.yaml

@@ -0,0 +1,24 @@
+description: Montana deductions from taxable income if itemizing (that are not available if not itemizing).
+values:
+  2022-01-01:
+    - mt_medical_and_dental_expenses_deduction
+    - mt_medical_premiums_deduction
+    - mt_long_term_care_premiums_deduction
+    - mt_federal_income_tax_deduction
+    - mt_state_local_tax_deduction
+    - mt_light_vehicle_registration_deduction
+    - mt_per_capita_livestock_deduction
+    - mt_other_taxes_paid_deduction
+    - mt_home_mortage_interest_deduction
+    - mt_investment_interest_deduction
+    - mt_charitable_cash_deduction
+    - mt_charitable_noncash_deduction
+    - mt_charitable_carryover_deduction
+    - mt_child_care_expense_deduction
+    - mt_casualty_loss_deduction
+    - mt_political_contributions_deduction
+    - mt_gambling_loss_deduction
+    - mt_other_deduction
+metadata:
+  unit: variable
+  label: montana itemized deductions

fiscalsim_us/parameters/gov/states/mt/tax/income/deductions/itemized/medical_dental/rate.yaml

@@ -0,0 +1,9 @@
+description: Montana percentage of adjusted gross income that your medical and dental expenses are subject to.
+values:
+  2022-01-01: 0.075
+metadata:
+  unit: year
+  label: Montana itemized medical and dental rate
+  reference:
+    title: Montana Individual Tax Return Form 2 | Itemized Deductions Scedule | Line 1c
+    href: https://mtrevenue.gov/wp-content/uploads/dlm_uploads/2023/05/Montana-Idividiual-Income-Tax-Return-Form-2-2022v6.2.pdf

fiscalsim_us/parameters/gov/states/mt/tax/income/deductions/itemized/misc/political_contributions_cap.yaml

@@ -0,0 +1,9 @@
+description: Montana cap that the political contributions and limited by per taxpayer
+values:
+  2022-01-01: 100
+metadata:
+  unit: year
+  label: Montana political contributions cap
+  reference:
+    title: Montana Individual Tax Return Form 2 | Itemized Deductions Scedule | Line 16
+    href: https://mtrevenue.gov/wp-content/uploads/dlm_uploads/2023/05/Montana-Idividiual-Income-Tax-Return-Form-2-2022v6.2.pdf

fiscalsim_us/parameters/gov/states/mt/tax/income/deductions/itemized/misc/salt_cap.yaml

@@ -0,0 +1,21 @@
+description: Maximum amount of state and local income, sales and real estate tax deductions allowed in montana.
+metadata:
+  unit: currency-USD
+  period: year
+  name: mt_salt_cap
+  label: Montana SALT cap
+HEAD_OF_HOUSEHOLD:
+  values:
+    2022-01-01: 10_000
+JOINT:
+  values:
+    2022-01-01: 10_000
+SEPARATE:
+  values:
+    2022-01-01: 5_000
+SINGLE:
+  values:
+    2022-01-01: 10000
+WIDOW:
+  values:
+    2022-01-01: 10000

fiscalsim_us/parameters/gov/states/mt/tax/income/deductions/standard/max.yaml

@@ -1,4 +1,5 @@
 description: Montana provides this maximum standard deduction amount, based on filing status.
+
 metadata:
   label: Montana standard deduction max amount
   period: year
@@ -8,7 +9,7 @@ metadata:
   reference:
     - title: MT Code, Income Tax - Deductions, § 42-15-523 (2)
       href: https://rules.mt.gov/gateway/RuleNo.asp?RN=42%2E15%2E523
-    - title: Montana Tax Form 2022 | Standard Deduction | Line 3
+    - title: This refers to line 3 of the standard deduction worksheet on Montana tax form 2. | Montana Tax Form 2022 | Standard Deduction | Line 3
       href: https://mtrevenue.gov/wp-content/uploads/dlm_uploads/2023/05/Montana-Idividiual-Income-Tax-Return-Form-2-2022v6.2.pdf#page=7
     - title: Montana Tax Form 2021 | Standard Deduction | Line 3
       href: https://mtrevenue.gov/wp-content/uploads/mdocs/form%202%202021.pdf#page=7

fiscalsim_us/parameters/gov/states/mt/tax/income/deductions/standard/min.yaml

@@ -1,14 +1,19 @@
 description: Montana provides a minimum standard deduction of this amount, based on filing status.
+
 metadata:
   label: Montana minimum standard deduction
   period: year
   unit: currency-USD
   breakdown:
     - filing_status
   reference:
+    - title: Increase each year with inflation (repealed effective January 1, 2024)
+      href: https://leg.mt.gov/bills/mca/title_0150/chapter_0300/part_0210/section_0320/0150-0300-0210-0320.html
+    - title: Title 15 Chapter 30 Individual Income Tax Part 21. Rate and General Provisions, Standard Deduction Rule 15-30-2132
+      href: https://leg.mt.gov/bills/mca/title_0150/chapter_0300/part_0210/section_0320/0150-0300-0210-0320.html
     - title: MT Code, Income Tax - Deductions, § 42-15-523 (2)
       href: https://rules.mt.gov/gateway/RuleNo.asp?RN=42%2E15%2E523
-    - title: Montana Tax Form 2022 | Standard Deduction | Line 5
+    - title: This refers to line 5 of the standard deduction worksheet on Montana tax form 2 | Montana Tax Form 2022 | Standard Deduction | Line 5
       href: https://mtrevenue.gov/wp-content/uploads/dlm_uploads/2023/05/Montana-Idividiual-Income-Tax-Return-Form-2-2022v6.2.pdf#page=7
     - title: Montana Tax Form 2021 | Standard Deduction | Line 5
       href: https://mtrevenue.gov/wp-content/uploads/mdocs/form%202%202021.pdf#page=7

fiscalsim_us/parameters/gov/states/mt/tax/income/exemptions/amount.yaml

@@ -4,6 +4,8 @@ values:
   2022-01-01: 2_710
 metadata:
   reference:
+    - title: Defined in the law as $1900 beginning after December 31, 2004, indexed by inflation. (Repealed effective January 1, 2024)
+      href: https://leg.mt.gov/bills/mca/title_0150/chapter_0300/part_0210/section_0140/0150-0300-0210-0140.html
     - title: "Montana Tax Form 2021 | Exemptions | Line 16"
       href: https://mtrevenue.gov/wp-content/uploads/mdocs/form%202%202021.pdf#page=1
     - title: "Montana Tax Form 2022 | Exemptions | Line 16"

fiscalsim_us/variables/gov/states/mt/tax/income/additions_subtractions/mt_income_additions.py

@@ -0,0 +1,16 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_additions_to_income(Variable):
+    """
+    Line 12 on Montana 2022 Individual Income Tax return form 2. These
+    additions to income include the categories that are listed
+    in Montana Additions Schedule on page 4 of Montana 2022 Individual Income Tax return form 2
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "MT additions to income"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT

fiscalsim_us/variables/gov/states/mt/tax/income/additions_subtractions/mt_income_subtractions.py

@@ -0,0 +1,16 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_subtractions_to_income(Variable):
+    """
+    Line 13 on Montana 2022 Individual Income Tax return form 2. These
+    subtractions to income include the categories that are listed
+    in Montana Subtractions Schedule on page 5 of Montana 2022 Individual Income Tax return form 2
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "MT subtractions to income"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT

fiscalsim_us/variables/gov/states/mt/tax/income/credits/mt_nonrefundable_credits.py

@@ -0,0 +1,16 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_nonrefundable_credits(Variable):
+    """
+    Line 19 of Montana state individual tax return form 2
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "Montana refundable credits"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT
+
+    adds = "gov.states.mt.tax.income.credits.non_refundable"

fiscalsim_us/variables/gov/states/mt/tax/income/mt_refundable_credits.py → fiscalsim_us/variables/gov/states/mt/tax/income/credits/mt_refundable_credits.py

@@ -2,6 +2,10 @@
 
 
 class mt_refundable_credits(Variable):
+    """
+    Line 22 on Montana individual tax return form 2
+    """
+
     value_type = float
     entity = TaxUnit
     label = "Montana refundable credits"

fiscalsim_us/variables/gov/states/mt/tax/income/credits/mt_tax_after_nonrefundable_credits.py

@@ -0,0 +1,21 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_tax_after_nonrefundable_credits(Variable):
+    """
+    Line 20 on Montana individual tax return form 2
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "Montana refundable credits"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT
+
+    def formula(tax_unit, period, parameter):
+        nonrefundable = tax_unit("mt_nonrefundable_credits")
+        incometaxbeforecredits = tax_unit(
+            "mt_income_tax_before_refundable_credits"
+        )
+        return incometaxbeforecredits - nonrefundable

fiscalsim_us/variables/gov/states/mt/tax/income/deductions/itemized/mt_casualty_deduction.py

@@ -0,0 +1,19 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_casualty_loss_deduction(Variable):
+    """
+    Line 15 on Montana itemized deductions schedule
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "Montana casualty and theft losses"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT
+
+    def formula(tax_unit, period, parameters):
+        deduction = (tax_unit, period, ["casualty_loss_deduction"])
+
+        return deduction

fiscalsim_us/variables/gov/states/mt/tax/income/deductions/itemized/mt_charitable_carryover_deduction.py

@@ -0,0 +1,16 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_charitable_carryover_deduction(Variable):
+    """
+    Line 13 on Montana itemized deductions schedule
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = (
+        "Montana charitable carryover donation from previous year deduction"
+    )
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT

fiscalsim_us/variables/gov/states/mt/tax/income/deductions/itemized/mt_charitable_cash_deduction.py

@@ -0,0 +1,22 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_charitable_cash_deduction(Variable):
+    """
+    Line 11 on Montana itemized deductions schedule
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "Montana charitable cash donation deduction"
+    unit = USD
+    documentation = (
+        "Montana deduction from taxable income for charitable cash donations."
+    )
+    definition_period = YEAR
+    defined_for = StateCode.MT
+
+    def formula(tax_unit, period, parameters):
+        cash_donations = add(tax_unit, period, ["charitable_cash_donations"])
+
+        return cash_donations

fiscalsim_us/variables/gov/states/mt/tax/income/deductions/itemized/mt_charitable_noncash_deduction.py

@@ -0,0 +1,19 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_charitable_noncash_deduction(Variable):
+    """
+    Line 12 on Montana itemized deductions schedule
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "Montana charitable non-cash donation deduction"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT
+
+    def formula(tax_unit, period, parameters):
+        noncash_donations = tax_unit(period, ["charitable_non_cash_donations"])
+
+        return noncash_donations

fiscalsim_us/variables/gov/states/mt/tax/income/deductions/itemized/mt_child_care_expenses_deduction.py

@@ -0,0 +1,14 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_child_care_expense_deduction(Variable):
+    """
+    Line 14 on Montana itemized deductions schedule
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "Montana child and dependent care expenses"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT

fiscalsim_us/variables/gov/states/mt/tax/income/deductions/itemized/mt_federal_income_tax_deduction.py

@@ -0,0 +1,22 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_federal_income_tax_deduction(Variable):
+    """
+    Line 4 on itemized deductions schedule
+    Includes the following
+    *Federal income tax withheld
+    *Federal estimated tax payments
+    *Prior year federal income taxes
+    *Other back year federal income taxes
+    Add each of those together but not more then $5,000 if you are single,
+        head of household, or married filing sperarately; or $10,000 if you
+        are married filing jointly
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "Montana federal tax paid/withheld in prior year"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT

fiscalsim_us/variables/gov/states/mt/tax/income/deductions/itemized/mt_gambling_loss_deduction.py

@@ -0,0 +1,15 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_gambling_loss_deduction(Variable):
+    """
+    Line 17 on itemized deductions schedule
+    Limited to what it allowed under federal law
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "Montana gambling loss deduction"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT

fiscalsim_us/variables/gov/states/mt/tax/income/deductions/itemized/mt_home_mortage_interest_deduction.py

@@ -0,0 +1,15 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_home_mortage_interest_deduction(Variable):
+    """
+    Line 9 on itemized deductions schedule
+    Home mortgage interst and points
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "Montana home mortage interest deduction"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT

fiscalsim_us/variables/gov/states/mt/tax/income/deductions/itemized/mt_investment_interest_deduction.py

@@ -0,0 +1,19 @@
+from fiscalsim_us.model_api import *
+
+
+class mt_investment_interest_deduction(Variable):
+    """
+    Line 10 on itemized deductions schedule
+    """
+
+    value_type = float
+    entity = TaxUnit
+    label = "Montana investment interest deduction"
+    unit = USD
+    definition_period = YEAR
+    defined_for = StateCode.MT
+
+    def formula(tax_unit, period, parameters):
+        contributions = tax_unit("investment_income_form_4952")
+
+        return contributions