CA 540 Es Estimated Tax
California content skill for computing California estimated tax payments under Form 540-ES for full-year California residents who are sole proprietors or single-member LLCs disregarded for federal tax. Covers the California 30/40/0/30 installment schedule (NOT equal quarterly like federal), due dates (April 15, June 15, September 15, January 15), the 100% prior-year safe harbor, underpayment penalty computation on Form 5805 / 5805-F, required annual payment rules, interaction with federal estimated tax (separate payments to separate agencies), and withholding credits from W-2 or backup withholding.
Not yet approved
Built from the law