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Understanding the fiscal impact statement

The second paragraph details costs of administration, totaling about 1% of the carbon tax revenue. This seems reasonable.
Then comes the third paragraph, which contains most of the important stuff.
  • They estimate carbon tax revenue of $243m in FY 2026 (i.e., the year ending June 30, 2026; note that our policy goes into effect Jan 1 2026 so this is only a half-year of revenue), $569m in FY 2027 (the first full fiscal year for our policy), and $611m in FY 2028.
  • They estimate FY 2027 impacts to the General Fund (from lost sales tax revenue on groceries) of $221m.
  • They estimate FY 2027 impacts to the Income Tax Fund (from the expanded EITC match) of $75m.
The key sentence is the last one: “Combining these impacts could result in net revenue increases to the following funds in the following amounts beginning in FY 2027”:
  • “Income Tax Fund, $3 million”: This is a (very small) net increase in revenue for the Income Tax Fund (formerly called the Education Fund) resulting from a technical issue.
  • “Aeronautics Restricted Account, $26.3 million”: This is the carbon tax revenue from aircraft fuel, which (in accordance with federal DOT regulations) goes into a special airport fund.
  • “Transportation Investment Fund, $6 million”: This is (very small) net increase in revenue for the transportation fund resulting from a technical issue.
  • “new Carbon Emissions Revenue Restricted Account, $237 million”: This is the amount left in the Carbon Tax Account when you take the carbon tax revenue ($569m for FY 2027) and subtract transfers to the Income Tax Fund ($75m for the EITC expansion, plus $3m extra from the first gory technical issue),  the Aeronautics Restricted Account ($26.3m), the Transportation Investment Fund ($6m from the second gory technical issue), and the General Fund ($221m for the sales tax on groceries, and note that the General Fund is not included in this key sentence because it’s unchanged so it doesn’t see a “net revenue increase”): $569m – $75m – $3m  – $26.3m – $6m – $221m = $237.7m.
  • That $237m pays for $100m in clean air spending and $50m in rural economic transition funds, leaving $87m left over in the Tax Cut Fund.