io.github.ovanova-solar/itc-pwa-guide

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Les 14 outils

• check_applicability≈ 773 tokens

  Says whether a project must meet the prevailing wage and apprenticeship requirements to claim the increased (5x) credit, and which ones: the credit involved, when construction began (before January 29, 2023 is exempt for 30C, 45, 45Q, 45V, 45Y, 48, 48E and 179D; 45L, 45U, 45Z and 48C have no such exception), the one-megawatt exception for 45, 45Y, 48 and 48E (maximum net output under 1 MW AC by nameplate, aggregated across the energy project or across facilities with integrated operations; for DC generation the lesser of the DC nameplate sum or the first inverter), construction versus alteration or repair after placed in service (apprenticeship applies to construction only; prevailing wages continue 5 years for the ITC, 10 for the PTC), the applicable apprentice percentage (10 / 12.5 / 15%), whether the project is under section 48 or 48E, and for solar and wind the 2025 law’s termination dates (construction after July 4, 2026 must be placed in service by December 31, 2027).

  Paramètres, retour & exemple (7)

  Paramètres

  • credit · string · requis · 45 | 48 | 48E | 45Y | 45Q | 45V | 45Z | 45U
    The Code section claimed: 48 (energy credit), 48E (clean electricity investment credit), 45, 45Y, 45Q, 45V, 45Z, 45U, 45L, 179D, 30C or 48C.
  • work_type · string · optionnel · construction | alteration_or_repair
    construction (default) or alteration_or_repair after the facility is placed in service.
  • technology · string · optionnel · solar | wind | storage | other
    What the facility is: solar or wind (the 2025 law’s termination dates apply), storage, or other.
  • dwelling_type · string · optionnel · single_family | manufactured | multifamily
    For 45L only: the kind of home (prevailing wage reaches only multifamily units).
  • placed_in_service · string · optionnel
    Placed-in-service date (YYYY-MM-DD), if known or planned.
  • construction_began · string · requis
    When construction began (YYYY-MM-DD), under the IRS beginning-of-construction rules (physical work test or 5% safe harbor).
  • max_net_output_mw_ac · number · optionnel
    Maximum net output in megawatts AC by nameplate, AGGREGATED: for section 48 the sum of every energy property in the energy project (1.48-13(e)(1)); for 48E and 45Y the sum of every same-technology facility or storage with integrated operations (same or related owner, same taxable year placed in service, same point of interconnection or end user: 1.48E-3(c)(4), 1.45Y-3(c)(3)). Leave out if not an electricity or thermal project.

  Exemple d'appel

  {"name": "check_applicability", "arguments": {"credit": "45", "construction_began": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• check_apprentice_hours≈ 697 tokens

  The apprenticeship labor-hours requirement for one facility (26 CFR 1.45-8(b)): qualified apprentices must perform the applicable percentage (10% if construction began before 2023, 12.5% in 2023, 15% from 2024) of total labor hours, counting every contractor and subcontractor, after excluding hours of foremen, superintendents, owners and executive/administrative/professional staff, and counting apprentice hours only within the daily ratio. Returns the required hours, the shortfall, and the cure the IRS accepts: $50 per shortfall hour ($500 with intentional disregard), including participation failures (an employer with 4+ individuals and no apprentice: its labor hours divided by its number of laborers and mechanics).

  Paramètres, retour & exemple (6)

  Paramètres

  • good_faith_hours · number · optionnel
    Apprentice hours covered by denied or unanswered good-faith requests (1.45-8(f)(1)); they count as apprentice hours.
  • total_labor_hours · number · requis
    Total labor hours of construction, alteration or repair on the facility by all laborers and mechanics (every employer), apprentices included; hours of foremen, superintendents, owners and 541-exempt staff already left out.
  • construction_began · string · requis
    When construction began (YYYY-MM-DD or a year): sets the percentage.
  • intentional_disregard · boolean · optionnel
    true if the failure was knowing or willful (the IRS decides); the rate becomes $500 an hour.
  • participation_failures · array · optionnel
    Employers with four or more individuals on the facility and no qualified apprentice (each adds a participation shortfall).
  • counted_apprentice_hours · number · requis
    Hours worked by qualified (registered) apprentices that are within the daily ratio. Use check_daily_ratio to find them.

  Exemple d'appel

  {"name": "check_apprentice_hours", "arguments": {"total_labor_hours": 1, "construction_began": "texte", "counted_apprentice_hours": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• check_daily_ratio≈ 680 tokens

  The ratio requirement (26 CFR 1.45-8(c)): on each day, for one employer and one occupation on the job site, the number of apprentices may not exceed what the registered program’s apprentice-to-journeyworker ratio allows for the journeyworkers present (or the ratio for the facility’s area). Give the program ratio and, for each day, the headcounts of journeyworkers and apprentices on site (the controlling input) with each apprentice’s hours; the tool returns the apprentice hours that count toward the percentage and the excess hours that do not (they stay in total labor hours and must be paid the full journeyworker prevailing rate: 1.45-7(b)(7)(iii), 29 CFR 5.5(a)(4)(i)). With hours only and no headcounts it prorates on hours, marked as an interpretation.

  Paramètres, retour & exemple (3)

  Paramètres

  • days · array · requis
    One entry per day for one employer and occupation.
  • ratio_apprentices · integer · optionnel
    Apprentices side of the program ratio (default 1).
  • ratio_journeyworkers · integer · optionnel
    Journeyworkers side of the program ratio (default 1). A 1:1 program = 1 and 1; 2 apprentices per journeyworker = 2 and 1.

  Exemple d'appel

  {"name": "check_daily_ratio", "arguments": {"days": []}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• check_good_faith_request≈ 595 tokens

  Judges a request for apprentices under the Good Faith Effort Exception (26 CFR 1.45-8(f)(1)): a written request (electronic or registered mail) to a registered apprenticeship program covering the facility’s area and occupation, sent at least 45 days before the apprentices are needed (14 days for a later request to the same program), with the dates, occupation, location, number, expected hours, contact and a statement of intent to employ. Denied, or unanswered for 5 business days, it stands in for the apprentices for its period, up to 365 days (366 across a leap year). Returns the lead-time check, the response status, how long the exception runs and when to request again.

  Paramètres, retour & exemple (8)

  Paramètres

  • today · string · optionnel
    The date to judge from (YYYY-MM-DD); defaults to the response date or the request date.
  • response · string · optionnel · none | denied | partial | accepted
    The program’s answer so far (default none).
  • request_date · string · requis
    When the request was sent (YYYY-MM-DD): the send date for email, the delivery date on the receipt for registered mail.
  • received_date · string · optionnel
    When the program received it (YYYY-MM-DD), if different: the five business days run from receipt (1.45-8(f)(1)(i)(C)).
  • response_date · string · optionnel
    When the program answered (YYYY-MM-DD), if it did.
  • needed_from_date · string · optionnel
    When the apprentices were asked to start (YYYY-MM-DD): coverage runs from here.
  • needed_through_date · string · optionnel
    The last day of the employment period requested (YYYY-MM-DD), if the request named one.
  • later_request_to_same_program · boolean · optionnel
    true if this is a later request to a program already asked once (14-day lead time instead of 45).

  Exemple d'appel

  {"name": "check_good_faith_request", "arguments": {"request_date": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• check_prevailing_wage≈ 986 tokens

  Compares pay for one classification with the Davis-Bacon prevailing rate (basic hourly rate + fringe from the wage determination; look it up with lookup_wage_determination) and, if short, computes the IRS cure: the shortfall (x3 for intentional disregard), interest at the Federal short-term rate + 6 points, and the $5,000 per-worker penalty ($10,000 for intentional disregard), with the penalty waivers (corrected by the quarter deadline and either no more than 10% of pay periods short or no more than 5% short; or work under a qualifying project labor agreement). Cash plus bona fide fringe contributions together must reach base plus fringe (29 CFR 5.31).

  Paramètres, retour & exemple (16)

  Paramètres

  • hours · number · optionnel
    Hours worked at this (short) pay: only the underpaid hours, to total the shortfall.
  • workers · integer · optionnel
    How many laborers or mechanics were paid this way (the penalty is per worker).
  • cash_rate_paid · number · requis
    Cash wages paid ($/hour).
  • classification · string · optionnel
    The work classification (e.g. Electrician), for the record.
  • wages_due_date · string · optionnel
    When the wages were due (YYYY-MM-DD): the server looks up that quarter’s Federal short-term rate (table through 2026-10-16) to show the interest rate.
  • year_wages_paid · number · optionnel
    What the worker was actually paid for that year on the facility (defaults to the year’s required wages less the shortfall entered).
  • pay_periods_below · integer · optionnel
    Of those, how many were paid below the prevailing rate.
  • pay_periods_total · integer · optionnel
    Pay periods the worker was employed on the facility in the calendar year (for the small-failure waiver).
  • required_base_rate · number · requis
    The determination’s basic hourly rate for the classification ($/hour).
  • year_required_wages · number · optionnel
    The amount required to be paid to this worker for the calendar year (or the part of it) during which they worked on the facility: the 5% test in 1.45-7(c)(6)(i)(B) runs over the year, not over the underpaid hours alone.
  • fringe_paid_per_hour · number · optionnel
    Bona fide fringe benefit contributions per hour ($/hour): health, pension, insurance, vacation... not legally required benefits (29 CFR 5.29).
  • required_fringe_rate · number · optionnel
    The determination’s fringe benefit amount ($/hour); 0 if none.
  • intentional_disregard · boolean · optionnel
    true if the failure was knowing or willful.
  • federal_short_term_rate_pct · number · optionnel
    Or give the Federal short-term rate (IRC 6621(b)) for the period yourself, in percent; the interest rate is that + 6 points.
  • corrected_by_quarter_deadline · boolean · optionnel
    true if the back pay is made by the last day of the first month after the calendar quarter in which the failure occurred.
  • qualifying_project_labor_agreement · boolean · optionnel
    true if the work is under a pre-hire collective bargaining agreement for this project that meets 1.45-7(c)(6)(ii) and back pay is made before the credit is claimed (no penalty).

  Exemple d'appel

  {"name": "check_prevailing_wage", "arguments": {"cash_rate_paid": 1, "required_base_rate": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• count_participation≈ 739 tokens

  The participation requirement (26 CFR 1.45-8(d)): a taxpayer, contractor or subcontractor that employs four or more individuals to perform construction, alteration or repair work on the facility, counted over the whole construction (not at one time), must employ at least one qualified apprentice there. Give the people one employer used on this facility with their roles; the tool says who counts toward the four (laborers, mechanics and apprentices do; a supervising foreperson, an exempt 20%+ managing owner and office staff do not; a working foreperson or superintendent over 20% manual duties who is not 541-exempt, or a nonexempt owner doing trade work, does under this server’s reading), whether an apprentice is required, and whose hours are out of the labor-hours denominator either way.

  Paramètres, retour & exemple (2)

  Paramètres

  • people · array · requis
    Everyone this employer used on the facility over the whole construction, one entry each.
  • employer · string · optionnel
    The company (taxpayer, contractor or subcontractor) these people work for.

  Exemple d'appel

  {"name": "count_participation", "arguments": {"people": []}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• fetch≈ 177 tokens

  Returns the full text of a document found with search: overview:<topic>, records:<requirement>, form7220, law2025, tennessee, or reg:<section>[(paragraph)] such as reg:1.45-8(d), which is read live from the eCFR.

  Paramètres, retour & exemple (1)

  Paramètres

  • id · string · requis
    A document id from search.

  Exemple d'appel

  {"name": "fetch", "arguments": {"id": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• find_apprenticeship_programs≈ 352 tokens

  Registered apprenticeship programs a contractor can send a good-faith request to (26 CFR 1.45-8(f)(1)): a program whose area covers the facility and that trains the occupation. For Tennessee it reads the State Apprenticeship Agency’s live list of registered programs (program, occupation, participating employers, county) and filters by occupation and county; for other states it gives the apprenticeship.gov partner finder and the State office to contact. Occupation is matched as text, so "electric" finds Electrician programs.

  Paramètres, retour & exemple (3)

  Paramètres

  • state · string · requis
    Two-letter state, e.g. TN.
  • counties · array · optionnel
    County names to keep (e.g. ["Warren", "Van Buren"]); leave out for the whole state.
  • occupation · string · optionnel
    The trade, e.g. electrician, laborer, operating engineer, solar.

  Exemple d'appel

  {"name": "find_apprenticeship_programs", "arguments": {"state": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• lookup_wage_determination≈ 455 tokens

  Fetches a Davis-Bacon general wage determination live from SAM.gov: by number (e.g. TN20260124, newest modification unless a revision is given) or by state, county and construction type (Building, Residential, Heavy, Highway; utility-scale solar and wind farms are Heavy). Returns the determination’s counties, modifications and every classification’s basic rate and fringe, optionally filtered to one classification, with the SAM.gov page to cite. Use the determination in force when the contract was executed (26 CFR 1.45-7(b)). A classification that is missing needs DOL’s additional classification and rate (IRAprevailingwage@dol.gov).

  Paramètres, retour & exemple (6)

  Paramètres

  • state · string · optionnel
    Two-letter state (for a search).
  • county · string · optionnel
    County name (for a search), e.g. Van Buren.
  • number · string · optionnel
    A determination number like TN20260124.
  • revision · integer · optionnel
    A specific modification number (default: the newest on SAM.gov).
  • classification · string · optionnel
    Show only classifications matching this (e.g. electrician, laborer, crane).
  • construction_type · string · optionnel · Building | Residential | Heavy | Highway
    Building, Residential, Heavy or Highway (for a search).

  Exemple d'appel

  {"name": "lookup_wage_determination", "arguments": {"state": "texte", "county": "texte", "number": "texte", "revision": 1, "classification": "texte", "construction_type": "Building"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• official_sources≈ 161 tokens

  The primary sources behind every answer here (IRS pages and FAQs, Form 7220, the Code, the regulations on eCFR, the Treasury decision with its preamble, DOL’s IRA page, SAM.gov wage determinations, apprenticeship.gov and the Tennessee apprenticeship agency), with one line on what each is for.

  Paramètres, retour & exemple (0)

  Exemple d'appel

  {"name": "official_sources", "arguments": {}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• pwa_overview≈ 280 tokens

  Start here. Explains the IRS prevailing wage and apprenticeship (PWA) requirements for the increased clean-energy credit (ITC under IRC 48 / 48E and the other IRA credits): what they are, when they apply (the 1 MW and January 29, 2023 exceptions), the prevailing wage rule, the three apprenticeship tests (labor-hours percentage, daily ratio, four-or-more participation), the good-faith exception, cures and penalties, records and Form 7220, with the regulation paragraph for every figure. Ask for one topic or all of them.

  Paramètres, retour & exemple (1)

  Paramètres

  • topic · string · optionnel · all | what | prevailing_wage | apprenticeship | penalties | records | changes_2025 | sources
    all (default), what, prevailing_wage, apprenticeship, penalties, records, changes_2025 or sources.

  Exemple d'appel

  {"name": "pwa_overview", "arguments": {"topic": "all"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• read_regulation≈ 486 tokens

  Returns the current text of a paragraph of the governing regulations straight from the eCFR, with its citation and URL: 26 CFR 1.45-6, 1.45-7, 1.45-8, 1.45-12, 1.48-13, 1.48E-3 and the Labor rules they rest on (29 CFR 541.101 owner exemption, 5.5 apprentices on Davis-Bacon work, 5.31 fringe, 29.5 program standards). Give a paragraph like "(d)" or "(g)(7)" to read one part; leave it out for the whole section. Sections: 1.45-6 (the 5x increased amount and when PWA applies to it); 1.45-7 (who is paid, which wage determination, corrections and penalties, definitions); 1.45-8 (labor hours (b), ratio (c), participation (d), examples (e), good faith and cure (f), definitions (g)); 1.45-12 (the records a taxpayer must keep for prevailing wage and apprenticeship); 1.48-13 (how 1.45-7/-8 apply to the energy credit, the 1 MW exception, alteration and repair); 1.48E-3 (how 1.45-7/-8 apply to section 48E facilities and energy storage); 541.101 (the 20% equity, actively-managing owner who is a bona fide exempt executive); 5.5 (apprentices: ratio, rates, registration (paragraph (a)(4))); 5.31 (cash, fringe benefits or a combination); 29.5 (what a registered program must provide: ratios, supervision, wage schedules).

  Paramètres, retour & exemple (2)

  Paramètres

  • section · string · requis · 1.45-6 | 1.45-7 | 1.45-8 | 1.45-12 | 1.48-13 | 1.48E-3 | 541.101 | 5.5
    The section number, e.g. 1.45-8.
  • paragraph · string · optionnel
    A paragraph such as (d), (g)(7) or (f)(1); shorthand g7 works. Leave out for the whole section.

  Exemple d'appel

  {"name": "read_regulation", "arguments": {"section": "1.45-6"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• records_checklist≈ 255 tokens

  The records the regulations expect for the prevailing wage and apprenticeship requirements (26 CFR 1.45-12), as a checklist for a taxpayer, a prime contractor or a subcontractor, with how they may be kept (each company keeps its own unredacted records, or hands PII-redacted copies to the taxpayer or a vendor; unredacted records go to the IRS on request) and how they feed Form 7220.

  Paramètres, retour & exemple (2)

  Paramètres

  • role · string · optionnel · taxpayer | contractor | subcontractor
    Whose checklist (default taxpayer: the credit claimant).
  • requirement · string · optionnel · both | prevailing_wage | apprenticeship
    Which records (default both).

  Exemple d'appel

  {"name": "records_checklist", "arguments": {"role": "taxpayer", "requirement": "both"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• search≈ 224 tokens

  Full-text search over this guide’s documents: the PWA overview sections, the records checklists, Form 7220, the 2025 law changes, the Tennessee agency, and the governing regulation sections (26 CFR 1.45-6, 1.45-7, 1.45-8, 1.45-12, 1.48-13, 1.48E-3; 29 CFR 541.101, 5.5, 5.31, 29.5). Returns ids to pass to fetch. A paragraph reference like "1.45-8(d)" finds that regulation. For calculations use the check_* tools instead.

  Paramètres, retour & exemple (1)

  Paramètres

  • query · string · requis
    A single query string.

  Exemple d'appel

  {"name": "search", "arguments": {"query": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

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Source

https://itc-pwa-guide.sitetime.workers.dev/mcp