Suppose I send in the 4th est tax payment, then I decide I should have paid more. (Pretend I am asking before the Jan 15 deadline.)
Do I send the second check with another Jan 15 payment voucher form? Or do I just send the second check without the form? Or am I not allowed to send multiple payments for the same due date?
Extra credit: If a Calif est tax payment would be in excess of $20,000, can I avoid the mandatory electronic payment notice (pursuant to Calif R&TC Sec
19011.5) by mailing two separate est tax payments for the same due date, both less than $20,000?(Assume my total tax liability for the tax year does not exceed $80,000.)
I am irked that my CPA tax preparer advised me to send an est tax payment in excess of $20,000 (a) without informing me of the consequences, and (b) without suggesting alternatives, if the 19011.5 notice was avoidable.