We can keep the month, reconcile the accounts, and prepare the return that the papers support. Once the acceptance is real we can help you tell the payroll provider what the status is. Signed assurance, whether an audit, a review, or a compilation, is not offered here. The disclosures page is the only spot that spells that boundary.
The federal calendar still matters after an election. A calendar year S company generally files Form 1120-S on the 15th day of the third month. Owners who owe on the passthrough often pay estimates on the 15th of April, June, September, and January. Accepting S does not delete those dates. It decides which federal forms they belong to.
An extension, if you need one, is more time to file the return. It is not a pause on tax that is already due. Both the filing date and the estimate dates go on one calendar so neither arrives as a surprise in the week the books are still open.