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Applicable percentage

5 rulesAll 3 subsections

Official source

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For purposes of subsection (a), the applicable percentage shall be—

(1)

(1)∀ 1#

in the case of property placed in service after December 31, 2016 , and before January 1, 2020 , 30 percent,

(2)∀ 1#

in the case of property placed in service after December 31, 2019 , and before January 1, 2022 , 26 percent, and

(3)∀ 1#

in the case of property placed in service after December 31, 2021 , 30 percent.

in view

Whole section

Encodings · 5

residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_202026 USC § 25D (g) (1) · parameter

26 USC 25D(g)(1)

name: >-
  residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_2020
kind: parameter
dtype: Rate
source: 26 USC 25D(g)(1)
metadata:
  proof:
    atoms:
      - path: versions[0].formula
        kind: parameter
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            in the case of property placed in service after December 31, 2016,
            and before January 1, 2020, 30 percent
versions:
  - effective_from: '2017-01-01'
    formula: '0.30'

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residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_202226 USC § 25D (g) (2) · parameter

26 USC 25D(g)(2)

name: >-
  residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_2022
kind: parameter
dtype: Rate
source: 26 USC 25D(g)(2)
metadata:
  proof:
    atoms:
      - path: versions[0].formula
        kind: parameter
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            in the case of property placed in service after December 31, 2019,
            and before January 1, 2022, 26 percent
versions:
  - effective_from: '2020-01-01'
    formula: '0.26'

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residential_clean_energy_credit_applicable_percentage_property_placed_after_202126 USC § 25D (g) (3) · parameter

26 USC 25D(g)(3)

name: >-
  residential_clean_energy_credit_applicable_percentage_property_placed_after_2021
kind: parameter
dtype: Rate
source: 26 USC 25D(g)(3)
metadata:
  proof:
    atoms:
      - path: versions[0].formula
        kind: parameter
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            in the case of property placed in service after December 31, 2021,
            30 percent
versions:
  - effective_from: '2022-01-01'
    formula: '0.30'

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residential_clean_energy_credit_applicable_percentage26 USC § 25D (g) · derived

26 USC 25D(g)

name: residential_clean_energy_credit_applicable_percentage
kind: derived
entity: TaxUnit
dtype: Rate
period: Year
source: 26 USC 25D(g)
metadata:
  proof:
    atoms:
      - path: versions[0].formula
        kind: formula
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            the applicable percentage shall be— (1) ... 30 percent, (2) ... 26
            percent, and (3) ... 30 percent
versions:
  - effective_from: '2017-01-01'
    formula: |-
      if property_placed_in_service_after_2016_and_before_2020:
          residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_2020
      else:
          if property_placed_in_service_after_2019_and_before_2022:
              residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_2022
          else:
              residential_clean_energy_credit_applicable_percentage_property_placed_after_2021

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residential_clean_energy_credit_potential26 USC § 25D (g) · derived

26 USC 25D(a), 26 USC 25D(b)(1), 26 USC 25D(g), 26 USC 25D(h)

name: residential_clean_energy_credit_potential
kind: derived
entity: TaxUnit
dtype: Money
period: Year
unit: USD
source: 26 USC 25D(a), 26 USC 25D(b)(1), 26 USC 25D(g), 26 USC 25D(h)
metadata:
  proof:
    atoms:
      - path: versions[0].formula
        kind: formula
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            an amount equal to the sum of the applicable percentages of— (1) the
            qualified solar electric property expenditures, (2) the qualified
            solar water heating property expenditures, (3) the qualified fuel
            cell property expenditures, (4) the qualified small wind energy
            property expenditures, (5) the qualified geothermal heat pump
            property expenditures, and (6) the qualified battery storage
            technology expenditures
      - path: versions[0].formula
        kind: amount
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            shall not exceed $500 with respect to each half kilowatt of capacity
            of the qualified fuel cell property
      - path: versions[0].formula
        kind: condition
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            The credit allowed under this section shall not apply with respect
            to any expenditures made after December 31, 2025.
versions:
  - effective_from: '2017-01-01'
    formula: >-
      if taxable_year_begins_after_credit_termination_date: 0 else:
      residential_clean_energy_credit_applicable_percentage * (
      total_qualified_solar_electric_property_expenditures +
      total_qualified_solar_water_heating_property_expenditures +
      total_qualified_small_wind_energy_property_expenditures +
      total_qualified_geothermal_heat_pump_property_expenditures +
      total_qualified_battery_storage_technology_expenditures ) + min(
      residential_clean_energy_credit_applicable_percentage *
      total_qualified_fuel_cell_property_expenditures,
      fuel_cell_credit_per_half_kilowatt_cap_amount *
      qualified_fuel_cell_property_capacity_in_half_kilowatt_units )

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▸rulespec code

Shown source

statutes/26/25D.yaml

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Rules

fuel_cell_credit_per_half_kilowatt_cap_amount

Parameter

source: 26 USC 25D(b)(1)

- name: fuel_cell_credit_per_half_kilowatt_cap_amount
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 25D(b)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              $500 with respect to each half kilowatt of capacity of the qualified fuel cell
              property
  versions:
    - effective_from: '2017-01-01'
      formula: '500'

fuel_cell_joint_occupancy_max_expenditures_per_half_kilowatt

Parameter

source: 26 USC 25D(e)

- name: fuel_cell_joint_occupancy_max_expenditures_per_half_kilowatt
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 25D(e)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: $1,667 in the case of each half kilowatt of capacity of qualified fuel cell property
  versions:
    - effective_from: '2017-01-01'
      formula: '1667'

residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_2020

Parameter(1) in text ↖

source: 26 USC 25D(g)(1)

- name: residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_2020
  kind: parameter
  dtype: Rate
  source: 26 USC 25D(g)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              in the case of property placed in service after December 31, 2016, and before January
              1, 2020, 30 percent
  versions:
    - effective_from: '2017-01-01'
      formula: '0.30'

residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_2022

Parameter(2) in text ↖

source: 26 USC 25D(g)(2)

- name: residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_2022
  kind: parameter
  dtype: Rate
  source: 26 USC 25D(g)(2)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              in the case of property placed in service after December 31, 2019, and before January
              1, 2022, 26 percent
  versions:
    - effective_from: '2020-01-01'
      formula: '0.26'

residential_clean_energy_credit_applicable_percentage_property_placed_after_2021

Parameter(3) in text ↖

source: 26 USC 25D(g)(3)

- name: residential_clean_energy_credit_applicable_percentage_property_placed_after_2021
  kind: parameter
  dtype: Rate
  source: 26 USC 25D(g)(3)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: in the case of property placed in service after December 31, 2021, 30 percent
  versions:
    - effective_from: '2022-01-01'
      formula: '0.30'

residential_clean_energy_credit_applicable_percentage

Derived

source: 26 USC 25D(g)

- name: residential_clean_energy_credit_applicable_percentage
  kind: derived
  entity: TaxUnit
  dtype: Rate
  period: Year
  source: 26 USC 25D(g)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              the applicable percentage shall be— (1) ... 30 percent, (2) ... 26 percent, and (3)
              ... 30 percent
  versions:
    - effective_from: '2017-01-01'
      formula: |-
        if property_placed_in_service_after_2016_and_before_2020:
            residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_2020
        else:
            if property_placed_in_service_after_2019_and_before_2022:
                residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_2022
            else:
                residential_clean_energy_credit_applicable_percentage_property_placed_after_2021

residential_clean_energy_credit_potential

Derived

source: 26 USC 25D(a), 26 USC 25D(b)(1), 26 USC 25D(g), 26 USC 25D(h)

- name: residential_clean_energy_credit_potential
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 25D(a), 26 USC 25D(b)(1), 26 USC 25D(g), 26 USC 25D(h)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              an amount equal to the sum of the applicable percentages of— (1) the qualified solar
              electric property expenditures, (2) the qualified solar water heating property
              expenditures, (3) the qualified fuel cell property expenditures, (4) the qualified
              small wind energy property expenditures, (5) the qualified geothermal heat pump
              property expenditures, and (6) the qualified battery storage technology expenditures
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              shall not exceed $500 with respect to each half kilowatt of capacity of the qualified
              fuel cell property
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              The credit allowed under this section shall not apply with respect to any expenditures
              made after December 31, 2025.
  versions:
    - effective_from: '2017-01-01'
      formula: >-
        if taxable_year_begins_after_credit_termination_date: 0 else:
        residential_clean_energy_credit_applicable_percentage * (
        total_qualified_solar_electric_property_expenditures +
        total_qualified_solar_water_heating_property_expenditures +
        total_qualified_small_wind_energy_property_expenditures +
        total_qualified_geothermal_heat_pump_property_expenditures +
        total_qualified_battery_storage_technology_expenditures ) + min(
        residential_clean_energy_credit_applicable_percentage *
        total_qualified_fuel_cell_property_expenditures,
        fuel_cell_credit_per_half_kilowatt_cap_amount *
        qualified_fuel_cell_property_capacity_in_half_kilowatt_units )

residential_clean_energy_credit_current_year_limit_under_section_25D_c

Derived

source: 26 USC 25D(c)

- name: residential_clean_energy_credit_current_year_limit_under_section_25D_c
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 25D(c)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              If the credit allowable under subsection (a) exceeds the limitation imposed by section
              26(a) for such taxable year reduced by the sum of the credits allowable under this
              subpart (other than this section), such excess shall be carried to the succeeding
              taxable year
  versions:
    - effective_from: '2017-01-01'
      formula: >-
        if taxable_year_begins_after_credit_termination_date: 0 else: max( 0,
        income_tax_before_refundable_credits_under_section_26_a -
        other_nonrefundable_personal_credits_under_this_subpart_except_residential_clean_energy_credit
        )

residential_clean_energy_credit

Derived

source: 26 USC 25D(a), 26 USC 25D(c), 26 USC 25D(h)

- name: residential_clean_energy_credit
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 25D(a), 26 USC 25D(c), 26 USC 25D(h)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              there shall be allowed as a credit against the tax imposed by this chapter for the
              taxable year an amount equal to the sum of the applicable percentages of [qualified
              expenditures]
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              If the credit allowable under subsection (a) exceeds the limitation imposed by section
              26(a) ... such excess shall be carried to the succeeding taxable year
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              The credit allowed under this section shall not apply with respect to any expenditures
              made after December 31, 2025.
  versions:
    - effective_from: '2017-01-01'
      formula: >-
        if taxable_year_begins_after_credit_termination_date: 0 else: min(
        residential_clean_energy_credit_potential,
        residential_clean_energy_credit_current_year_limit_under_section_25D_c )

residential_clean_energy_credit_carryforward_to_succeeding_taxable_year

Derived

source: 26 USC 25D(c), 26 USC 25D(h)

- name: residential_clean_energy_credit_carryforward_to_succeeding_taxable_year
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 25D(c), 26 USC 25D(h)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              such excess shall be carried to the succeeding taxable year and added to the credit
              allowable under subsection (a) for such succeeding taxable year.
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              The credit allowed under this section shall not apply with respect to any expenditures
              made after December 31, 2025.
  versions:
    - effective_from: '2017-01-01'
      formula: >-
        if taxable_year_begins_after_credit_termination_date: 0 else: max( 0,
        residential_clean_energy_credit_potential - residential_clean_energy_credit )

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us/statute/26/25D/g — Applicable percentage · Axiom

Applicable percentage

5 rulesAll 3 subsections

Official source

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For purposes of subsection (a), the applicable percentage shall be—

(1)

(1)∀ 1#

in the case of property placed in service after December 31, 2016 , and before January 1, 2020 , 30 percent,

(2)∀ 1#

in the case of property placed in service after December 31, 2019 , and before January 1, 2022 , 26 percent, and

(3)∀ 1#

in the case of property placed in service after December 31, 2021 , 30 percent.

in view

Whole section

Encodings · 5

residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_202026 USC § 25D (g) (1) · parameter

26 USC 25D(g)(1)

name: >-
  residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_2020
kind: parameter
dtype: Rate
source: 26 USC 25D(g)(1)
metadata:
  proof:
    atoms:
      - path: versions[0].formula
        kind: parameter
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            in the case of property placed in service after December 31, 2016,
            and before January 1, 2020, 30 percent
versions:
  - effective_from: '2017-01-01'
    formula: '0.30'

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residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_202226 USC § 25D (g) (2) · parameter

26 USC 25D(g)(2)

name: >-
  residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_2022
kind: parameter
dtype: Rate
source: 26 USC 25D(g)(2)
metadata:
  proof:
    atoms:
      - path: versions[0].formula
        kind: parameter
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            in the case of property placed in service after December 31, 2019,
            and before January 1, 2022, 26 percent
versions:
  - effective_from: '2020-01-01'
    formula: '0.26'

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residential_clean_energy_credit_applicable_percentage_property_placed_after_202126 USC § 25D (g) (3) · parameter

26 USC 25D(g)(3)

name: >-
  residential_clean_energy_credit_applicable_percentage_property_placed_after_2021
kind: parameter
dtype: Rate
source: 26 USC 25D(g)(3)
metadata:
  proof:
    atoms:
      - path: versions[0].formula
        kind: parameter
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            in the case of property placed in service after December 31, 2021,
            30 percent
versions:
  - effective_from: '2022-01-01'
    formula: '0.30'

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residential_clean_energy_credit_applicable_percentage26 USC § 25D (g) · derived

26 USC 25D(g)

name: residential_clean_energy_credit_applicable_percentage
kind: derived
entity: TaxUnit
dtype: Rate
period: Year
source: 26 USC 25D(g)
metadata:
  proof:
    atoms:
      - path: versions[0].formula
        kind: formula
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            the applicable percentage shall be— (1) ... 30 percent, (2) ... 26
            percent, and (3) ... 30 percent
versions:
  - effective_from: '2017-01-01'
    formula: |-
      if property_placed_in_service_after_2016_and_before_2020:
          residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_2020
      else:
          if property_placed_in_service_after_2019_and_before_2022:
              residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_2022
          else:
              residential_clean_energy_credit_applicable_percentage_property_placed_after_2021

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residential_clean_energy_credit_potential26 USC § 25D (g) · derived

26 USC 25D(a), 26 USC 25D(b)(1), 26 USC 25D(g), 26 USC 25D(h)

name: residential_clean_energy_credit_potential
kind: derived
entity: TaxUnit
dtype: Money
period: Year
unit: USD
source: 26 USC 25D(a), 26 USC 25D(b)(1), 26 USC 25D(g), 26 USC 25D(h)
metadata:
  proof:
    atoms:
      - path: versions[0].formula
        kind: formula
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            an amount equal to the sum of the applicable percentages of— (1) the
            qualified solar electric property expenditures, (2) the qualified
            solar water heating property expenditures, (3) the qualified fuel
            cell property expenditures, (4) the qualified small wind energy
            property expenditures, (5) the qualified geothermal heat pump
            property expenditures, and (6) the qualified battery storage
            technology expenditures
      - path: versions[0].formula
        kind: amount
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            shall not exceed $500 with respect to each half kilowatt of capacity
            of the qualified fuel cell property
      - path: versions[0].formula
        kind: condition
        source:
          corpus_citation_path: us/statute/26/25D
          excerpt: >-
            The credit allowed under this section shall not apply with respect
            to any expenditures made after December 31, 2025.
versions:
  - effective_from: '2017-01-01'
    formula: >-
      if taxable_year_begins_after_credit_termination_date: 0 else:
      residential_clean_energy_credit_applicable_percentage * (
      total_qualified_solar_electric_property_expenditures +
      total_qualified_solar_water_heating_property_expenditures +
      total_qualified_small_wind_energy_property_expenditures +
      total_qualified_geothermal_heat_pump_property_expenditures +
      total_qualified_battery_storage_technology_expenditures ) + min(
      residential_clean_energy_credit_applicable_percentage *
      total_qualified_fuel_cell_property_expenditures,
      fuel_cell_credit_per_half_kilowatt_cap_amount *
      qualified_fuel_cell_property_capacity_in_half_kilowatt_units )

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▸rulespec code

Shown source

statutes/26/25D.yaml

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This encoding covers the parent provision us/statute/26/25D; no dedicated encoding exists for this exact provision yet.

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Rules

fuel_cell_credit_per_half_kilowatt_cap_amount

Parameter

source: 26 USC 25D(b)(1)

- name: fuel_cell_credit_per_half_kilowatt_cap_amount
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 25D(b)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              $500 with respect to each half kilowatt of capacity of the qualified fuel cell
              property
  versions:
    - effective_from: '2017-01-01'
      formula: '500'

fuel_cell_joint_occupancy_max_expenditures_per_half_kilowatt

Parameter

source: 26 USC 25D(e)

- name: fuel_cell_joint_occupancy_max_expenditures_per_half_kilowatt
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 25D(e)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: $1,667 in the case of each half kilowatt of capacity of qualified fuel cell property
  versions:
    - effective_from: '2017-01-01'
      formula: '1667'

residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_2020

Parameter(1) in text ↖

source: 26 USC 25D(g)(1)

- name: residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_2020
  kind: parameter
  dtype: Rate
  source: 26 USC 25D(g)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              in the case of property placed in service after December 31, 2016, and before January
              1, 2020, 30 percent
  versions:
    - effective_from: '2017-01-01'
      formula: '0.30'

residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_2022

Parameter(2) in text ↖

source: 26 USC 25D(g)(2)

- name: residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_2022
  kind: parameter
  dtype: Rate
  source: 26 USC 25D(g)(2)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              in the case of property placed in service after December 31, 2019, and before January
              1, 2022, 26 percent
  versions:
    - effective_from: '2020-01-01'
      formula: '0.26'

residential_clean_energy_credit_applicable_percentage_property_placed_after_2021

Parameter(3) in text ↖

source: 26 USC 25D(g)(3)

- name: residential_clean_energy_credit_applicable_percentage_property_placed_after_2021
  kind: parameter
  dtype: Rate
  source: 26 USC 25D(g)(3)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: in the case of property placed in service after December 31, 2021, 30 percent
  versions:
    - effective_from: '2022-01-01'
      formula: '0.30'

residential_clean_energy_credit_applicable_percentage

Derived

source: 26 USC 25D(g)

- name: residential_clean_energy_credit_applicable_percentage
  kind: derived
  entity: TaxUnit
  dtype: Rate
  period: Year
  source: 26 USC 25D(g)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              the applicable percentage shall be— (1) ... 30 percent, (2) ... 26 percent, and (3)
              ... 30 percent
  versions:
    - effective_from: '2017-01-01'
      formula: |-
        if property_placed_in_service_after_2016_and_before_2020:
            residential_clean_energy_credit_applicable_percentage_property_placed_after_2016_and_before_2020
        else:
            if property_placed_in_service_after_2019_and_before_2022:
                residential_clean_energy_credit_applicable_percentage_property_placed_after_2019_and_before_2022
            else:
                residential_clean_energy_credit_applicable_percentage_property_placed_after_2021

residential_clean_energy_credit_potential

Derived

source: 26 USC 25D(a), 26 USC 25D(b)(1), 26 USC 25D(g), 26 USC 25D(h)

- name: residential_clean_energy_credit_potential
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 25D(a), 26 USC 25D(b)(1), 26 USC 25D(g), 26 USC 25D(h)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              an amount equal to the sum of the applicable percentages of— (1) the qualified solar
              electric property expenditures, (2) the qualified solar water heating property
              expenditures, (3) the qualified fuel cell property expenditures, (4) the qualified
              small wind energy property expenditures, (5) the qualified geothermal heat pump
              property expenditures, and (6) the qualified battery storage technology expenditures
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              shall not exceed $500 with respect to each half kilowatt of capacity of the qualified
              fuel cell property
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              The credit allowed under this section shall not apply with respect to any expenditures
              made after December 31, 2025.
  versions:
    - effective_from: '2017-01-01'
      formula: >-
        if taxable_year_begins_after_credit_termination_date: 0 else:
        residential_clean_energy_credit_applicable_percentage * (
        total_qualified_solar_electric_property_expenditures +
        total_qualified_solar_water_heating_property_expenditures +
        total_qualified_small_wind_energy_property_expenditures +
        total_qualified_geothermal_heat_pump_property_expenditures +
        total_qualified_battery_storage_technology_expenditures ) + min(
        residential_clean_energy_credit_applicable_percentage *
        total_qualified_fuel_cell_property_expenditures,
        fuel_cell_credit_per_half_kilowatt_cap_amount *
        qualified_fuel_cell_property_capacity_in_half_kilowatt_units )

residential_clean_energy_credit_current_year_limit_under_section_25D_c

Derived

source: 26 USC 25D(c)

- name: residential_clean_energy_credit_current_year_limit_under_section_25D_c
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 25D(c)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              If the credit allowable under subsection (a) exceeds the limitation imposed by section
              26(a) for such taxable year reduced by the sum of the credits allowable under this
              subpart (other than this section), such excess shall be carried to the succeeding
              taxable year
  versions:
    - effective_from: '2017-01-01'
      formula: >-
        if taxable_year_begins_after_credit_termination_date: 0 else: max( 0,
        income_tax_before_refundable_credits_under_section_26_a -
        other_nonrefundable_personal_credits_under_this_subpart_except_residential_clean_energy_credit
        )

residential_clean_energy_credit

Derived

source: 26 USC 25D(a), 26 USC 25D(c), 26 USC 25D(h)

- name: residential_clean_energy_credit
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 25D(a), 26 USC 25D(c), 26 USC 25D(h)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              there shall be allowed as a credit against the tax imposed by this chapter for the
              taxable year an amount equal to the sum of the applicable percentages of [qualified
              expenditures]
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              If the credit allowable under subsection (a) exceeds the limitation imposed by section
              26(a) ... such excess shall be carried to the succeeding taxable year
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              The credit allowed under this section shall not apply with respect to any expenditures
              made after December 31, 2025.
  versions:
    - effective_from: '2017-01-01'
      formula: >-
        if taxable_year_begins_after_credit_termination_date: 0 else: min(
        residential_clean_energy_credit_potential,
        residential_clean_energy_credit_current_year_limit_under_section_25D_c )

residential_clean_energy_credit_carryforward_to_succeeding_taxable_year

Derived

source: 26 USC 25D(c), 26 USC 25D(h)

- name: residential_clean_energy_credit_carryforward_to_succeeding_taxable_year
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 25D(c), 26 USC 25D(h)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              such excess shall be carried to the succeeding taxable year and added to the credit
              allowable under subsection (a) for such succeeding taxable year.
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/25D
            excerpt: >-
              The credit allowed under this section shall not apply with respect to any expenditures
              made after December 31, 2025.
  versions:
    - effective_from: '2017-01-01'
      formula: >-
        if taxable_year_begins_after_credit_termination_date: 0 else: max( 0,
        residential_clean_energy_credit_potential - residential_clean_energy_credit )