Fix a wrong vendor bill in the month you find it.

Two facts decide it: is the month open, and is the bill paid?

A void reverses the bill on the bill’s own date. Microsoft’s Business Central documentation describes the same mechanics: cancelling a posted purchase invoice posts a corrective credit memo against the original entries and keeps both for the audit trail. So a void of a September bill changes September, however late you do it. That is ideal while September is open and a problem once it has been reported.

Payment is the second test. Once money has gone out, the bill is part of a settled pair. Business Central will not cancel a paid invoice and sends you to a manually created credit memo, and Rivane refuses the void outright. Current guides, such as this one on void and delete in QuickBooks, rightly say to void rather than delete and to correct closed periods in the current one. Put the two tests together and you get four lines.

Three wrong bills found in one week of October.

A software company closed September on 7 October. Over the next week the AP team found three wrong bills. Every figure is an example.

The cleaning bill is the easy one. October is open, so the void and the re-entry both land on 3 October and the month never shows the wrong figure in a report. The hosting duplicate is unpaid, but its month is locked, so a void would rewrite September. A vendor credit for 12,400 dated 14 October, applied against the duplicate, takes its balance to zero and leaves the original bill to be paid. The consulting bill is already paid, so the 1,750 the vendor owes back becomes a vendor credit on the date of their credit note, held for the November bill.

3 Oct   Cleaning bill posted as keyed
        Dr Cleaning expense       11,800
           Cr Accounts payable            11,800
3 Oct   Void: reversal on the bill's own date
        Dr Accounts payable       11,800
           Cr Cleaning expense            11,800
3 Oct   Cleaning bill entered again
        Dr Cleaning expense        1,180
           Cr Accounts payable             1,180

12 Oct  Vendor credit, consulting
        (vendor's credit note attached)
        Dr Accounts payable        1,750
           Cr Consulting expense           1,750
        held open for the November bill

14 Oct  Vendor credit, hosting duplicate
        Dr Accounts payable       12,400
           Cr Hosting expense             12,400
        applied to the duplicate: 12,400 to 0

Each month moves a little, and the year comes out exact.

September stays at 33,550, which is 14,150 more than it should have been. October carries the 14,150 back. By the end of October the year to date figure is exact, and the AP aging and the AP control account agree, because every correction is a posted document with its own entry. What you owe these three vendors is 11,830: the original hosting bill of 12,400, plus the corrected cleaning bill of 1,180, less the 1,750 consulting credit.

Two habits make this easy to defend. Write one line in the October variance notes naming the 14,150 and the two bills, so nobody reads a dip in hosting as a saving. And watch the year end: a credit for a December bill that lands in January sits in the wrong fiscal year, and your auditor will judge whether it is large enough to adjust.

What your auditor will look at.

Auditors look for changes made to a period after it was closed, and each tool shows them differently. QuickBooks lets an admin change the closing date and reports later edits on its Exceptions to Closing Date report. Intuit’s QuickBooks Online void and delete help page lists checks, expenses and bill payments as the expense transactions you can void. And in QuickBooks Desktop, Intuit notes that a deleted bill can leave payments without their bills in the Transaction Journal.

The rule above keeps that list short. Closed months carry no edits, every vendor credit points to the bill it corrects and carries the vendor’s own credit note, and deletes are limited to drafts that never reached the ledger.

How Rivane handles bill corrections today.

Rivane builds the rule into the ledger. Voiding a bill zeroes its balance and posts the reversal of its journal entry in one transaction, dated on the bill’s own posting date. If that period is locked on the Period Locking screen, the void is refused, so a closed month cannot change by accident. A paid bill cannot be voided at all. The route that is left is a vendor credit, which posts its own journal entry on its own date and, when raised against a bill, reverses the same accounts that bill debited.

# Rivane bill corrections, as built.

void           allowed on a bill that is not paid;
               refused on a paid bill
               zeroes the balance due and posts a
               reversal of the bill's journal entry
               in the same transaction
               the reversal takes the bill's own
               date, so a bill in a locked period
               cannot be voided
               gives back the purchase order's
               billed amount and committed budget
vendor credit  its own credit date and its own
               journal entry; raised against a
               bill, it reverses the accounts that
               bill debited, in proportion
               apply, unapply, amend an application
delete         refused while a payment is applied
history        void and delete are recorded as
               events with the status before and
               after
not built      no single Correct action: void and
               re-entry are two steps (Void Entry,
               then Copy)

Limits worth knowing. There is no single Correct action of the kind Business Central offers, so a wrong bill in an open month is voided and then copied and edited, in two steps. And the choice between a void and a credit is still yours; Rivane enforces the locked period, and your team applies the rest of the rule.

Pin the four lines next to the bills queue.

Agree the rule with your auditor once, lock each month when it closes, and attach the vendor’s credit note to every credit. Mistakes still happen, and each one is fixed in the month you find it with a trail anyone can follow.

To see bills, vendor credits and locked periods working together, look at Rivane accounts payable.

Sources

• Intuit, Void or delete transactions in QuickBooks Online. Read on the Intuit help site: on the expense side it lists checks, expenses and bill payments as the transactions you can void.
• Intuit, Void or delete a bill or bill payment cheque in QuickBooks Desktop. A void sets the amount to zero and keeps the entry for the audit trail; a delete removes it and can leave the Transaction Journal showing payments without their bills.
• Intuit, Edit your closed books in QuickBooks. Only admins can change the closing date, and the Exceptions to Closing Date report shows changes made after the books were closed.
• Microsoft Learn, Amend or cancel unpaid purchase invoices in Business Central. Cancel posts a corrective credit memo against the original entries and keeps both for the audit trail; a paid invoice needs a manually created credit memo instead.
• beancount.io, Void vs delete in QuickBooks. Read as a current answer: void rather than delete, and correct closed periods in the current period, without a worked example or the vendor credit route.

A note on how this was researched. The Intuit and Microsoft pages were read on their own help sites, and each statement above about QuickBooks or Business Central comes from those pages. The company, the bills and every amount are examples. The Rivane section describes the product as built today, checked against the bill and vendor credit code rather than marketing copy. This is not accounting advice for your specific case.

On embedded social posts: we looked for public posts from standard setters or practitioners on correcting vendor bills after close and found none we could verify as current and relevant, so this article uses ordinary citations instead.