Advanced Quick Answer
What is a prepayment requirement in sales tax, and which states require it?
⚡ TL;DR
A prepayment is a mid-period estimated tax payment required before the regular return is due. California requires it for sellers with monthly liability above $17,000, due by the 24th of the current month. New York has similar requirements for large quarterly filers. Most sellers are below the threshold and never encounter it.
A prepayment is a mid-period estimated payment required from high-volume sellers before the regular return is due. It applies primarily in California and New York for sellers above specific liability thresholds. Most sellers are below the threshold and never encounter it.
Key takeaways
- California prepayment: required for sellers whose average monthly sales tax liability exceeds $17,000; prepayment due by the 24th of the current month based on 90% of current-period liability or 100% of the prior month’s liability, whichever is less
- New York prepayment: required for large quarterly filers above specific liability levels; structure varies by filing period
- Most states have no prepayment requirement, sellers remit once at the end of the period with their return
- Prepayments are credited against the final return for the period, you’re paying the same total tax, just in two installments
- Missing a prepayment deadline triggers a penalty (typically calculated on the unpaid prepayment amount) even if the full return is later filed correctly
- AutoFile software handles prepayment scheduling automatically for sellers enrolled in states with prepayment requirements
Frequently asked questions
What is a sales tax prepayment requirement?
Some states require large sellers to make an estimated mid-period tax payment before the regular return and payment are due. For example, a monthly filer in California with significant liability must make a prepayment by the 24th of the current month based on the prior month's liability, then file the full return and true-up payment by the regular deadline. The prepayment is credited against the final amount owed.
Which states have prepayment requirements?
California and New York are the primary states with prepayment requirements for large sellers. California requires prepayments from sellers whose monthly sales tax liability exceeds $17,000. New York has prepayment requirements for sellers above certain quarterly thresholds. Most other states do not have prepayment requirements, sellers remit once per period with their return.
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