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February 28, 2026 Nguyễn Mạnh Tường

Month-end Closing: Stop Making Your Accountants Night Owls

Why does high-end ERP fail to prevent overtime? Expert Nguyen Manh Tuong shares practical insights on optimizing the closing process.

Month-end Closing: Stop Making Your Accountants Night Owls

In my 20 years of implementing ERP systems, I’ve seen countless office lights burning bright at 2 AM during month-end. The image of exhausted accountants buried under piles of vouchers, manually reconciling Excel sheets against the system, is a persistent “scar” in corporate management.

CEOs often ask me: “Tuong, we bought a top-tier ERP, why is my staff still struggling?”. The answer is simple: The system is just a tool; your closing mindset is the root cause.

1. The Pain of “Big Bang Closing”

Most businesses operate on a cumulative basis. Every data entry error, every inventory discrepancy, every pending invoice is pushed to the final week of the month. This is a fatal mistake.

Under VAS (Vietnam Accounting Standards), invoice and cash flow reconciliation is extremely rigorous. If you wait until the 30th to check Inventory or Accounts Payable, you’ve already lost the race.

“Closing is not an event that happens at the end of the month. Closing is a discipline that must be practiced every day.”

2. Comparison: Traditional vs. Optimized Closing

CriteriaTraditional Closing (Manual)Optimized Closing (Modern)
Timeframe10 - 15 days3 - 5 working days
DataFragmented, waiting for departmentsReal-time visibility
ReconciliationManual via ExcelAutomated via Workflow
Error RateHigh, difficult to traceLow, transparent via Audit Trail
Staff MoraleExtreme pressure, high turnoverProactive, focused on analytics

3. Secrets to Turning Off the Lights at 5 PM

To permanently solve this, I typically implement three core pillars for my clients:

  • Data Discipline at Source: Accounting shouldn’t be the “janitor” for Sales or Warehouse departments. Every transaction must be recorded correctly and completely as it occurs. If the DMS (Distribution Management System) is flawed, accounting will get stuck in debt reconciliation.
  • Hard Close & Soft Close: Get into the habit of a “Soft Close” on the 20th of each month. Major discrepancies will surface early, giving you 10 days to resolve them instead of cramming everything into the final night.
  • Leverage Automated Reconciliation: A true ERP must automatically match purchase orders, warehouse receipts, and invoices. If your team is still manually checking line by line, you are wasting their intellectual potential.

4. Final Thoughts for Managers

Fast closing isn’t just about letting accountants go home early. Fast closing provides the CEO with accurate financial reports by the 5th of the month to make strategic decisions. In the digital age, whoever holds clean data earliest wins.

Don’t let your finance department burn out due to systemic inefficiencies. Standardize your processes before blaming the technology.

Nguyen Manh Tuong