What would you owe?
Move the slider. The calculator applies the §50301(b) phase-in, the §50301(c)(2) installment option with its 7.5 percent annual deferral charge, and the §50306 apportionment rules to a net worth you supply. Every figure shown traces to a specific section of the bill.
This is not tax advice. Real liability depends on valuation timing, asset composition, prior-year transfers, trust structures, and the apportionment method available to the taxpayer. See /bill for the full provisions.
Single filer. Standard deduction applied. State and federal progressive brackets, 2025 schedules.
The 2026 Billionaire Tax Act does not tax income. It taxes net worth above $1 billion. The receipt shows what you pay today versus what billionaires pay, per the findings of the Act itself and the NBER paper it cites.
Numbers, not narratives.
Read the projection at /projection for what the state collects on day one versus what the Walczak paper argues it loses ongoing. Read the bill at /bill for the verbatim provisions.