The order for automating month-end reconciliation and invoicing

Month-end piles up because nobody wrote it down in week two

Revenue, refunds and ad spend happen all month. They are simply not recorded when they happen. What gets called closing the month is mostly searching the last thirty days for what already went past.

There is no national invoice deadline to miss, and that is the problem

The United States has no federal VAT and no nationwide e-invoicing mandate. Nothing external tells you the tenth of the month has arrived. The deadline that binds you lives in your own calendar and in whatever your state and your customers require, which means it can quietly move.

PwC Worldwide Tax Summaries, United States

Sales and use tax is set jurisdiction by jurisdiction

Rates and filing dates are set by states and localities across more than twelve thousand jurisdictions, and five states levy no statewide sales tax at all. A rule that holds in one state is not a rule. It is a coincidence that has not been tested yet.

PwC Worldwide Tax Summaries, United States

So the calendar has to be built, not inherited

Write down each obligation, who owns it, what has to exist before it can be filed, and how long that preparation takes. Then set the alert against the preparation time rather than the due date. A reminder that fires on the day it is due is not a reminder.

Collect during the month and there is nothing to hunt at the end

Flag on the day of the transaction whether it needs an invoice and which field is missing. Then month-end is a review rather than a search. Asking the person who knows, on the day, is always faster than asking everybody at once four weeks later.

A person signs it off

Get an amount or a period wrong and a correction follows, sometimes with a penalty. The draft and the list of missing fields can be prepared for you. Fixing the number and filing it is the company's judgment.