VAT Reconciliation Burndown: From 30 Transaction Checks to Full Compliance

Introduction

VAT reconciliation has fundamentally changed. What was once a manual exercise—netting input VAT against output VAT on a spreadsheet—is now a transaction-based, evidence-driven, system-enabled discipline. The Nigeria Tax Act 2025 and the Nigeria Tax Administration Act 2025 have introduced a framework where every input VAT claim must be backed by valid documentation, every transaction must be traceable, and the VAT return is auto-generated from schedules uploaded to the Nigeria Revenue Service platform .

The VAT Reconciliation Burndown is a structured methodology for systematically closing the gap between your current reconciliation practices and full compliance under this new framework. The “burndown” concept applies agile project management principles to VAT compliance: you map every transaction, measure where documentation gaps exist, and progressively eliminate vulnerabilities until your VAT position is audit-ready.

For Nigerian businesses, this discipline is now essential. The NRS can review transaction-level data, cross-verify with supplier records, and disallow unsupported input VAT claims . Penalties for non-compliance—including late filing fines of ₦100,000 for the first month and ₦50,000 for each subsequent month—accumulate quickly .

The Pain Points: Why VAT Reconciliation Burndown Matters Now More Than Ever

The Shift from Manual Netting to Transaction-Based Compliance

Under the old regime, many businesses calculated VAT payable by manually subtracting input VAT from output VAT on a spreadsheet. The new framework makes this approach obsolete. Under Rev360, the VAT return is schedule-based—you upload detailed schedules of every taxable sale and every qualifying purchase, and the return is auto-generated from those schedules .

The system is designed to ask: “Show me the transaction,” not “Tell me the amount.” Every input VAT claim must be backed by a valid VAT invoice, a genuine business transaction, an expense that qualifies under the law, and documentation that can withstand a desk review or tax audit .

The Evidence Imperative

The new framework is evidence-based. Without proper invoices, compliant suppliers, and accurate returns, refundable VAT simply becomes an avoidable loss . The NRS has issued guidelines requiring suppliers to match amounts withheld by customers with invoices, withholding schedules, remittance evidence, and the VAT position reported in their returns. Unmatched deductions may create persistent VAT receivables or disputes .

The Compliance Deadlines

Two distinct deadlines apply:

• VAT withheld at source: Remitted by the 14th day of the following month

• Standard VAT returns: Filed by the 21st day of the following month

These are not monthly suggestions—they are statutory deadlines with penalties attached.

The Refund Opportunity

Under the NTA 2025, where input VAT exceeds output VAT, the excess becomes a credit. Unused credits qualify for a refund, provided the taxpayer submits a request within 12 months. The NRS must process refunds within 30 days. Refunds may be set off against any type of tax liability—not just VAT .

This is a significant change. But refunds require documentation. Without proper reconciliation, the refund opportunity is lost.

Understanding the New VAT Reconciliation Framework

The Core Principle: Input VAT Offsets Output VAT

The fundamental principle remains: businesses can offset input VAT against output VAT and remit only the net difference .

Example:

• Sales value: ₦10,000,000

• Output VAT at 7.5%: ₦750,000

• Purchases value: ₦6,000,000

• Input VAT at 7.5%: ₦450,000

• VAT payable: ₦300,000

What has changed is how you arrive at that figure .

The System-Driven Process

Under Rev360, the return is schedule-based. Instead of typing summary figures, you upload detailed schedules of:

• Every taxable sale

• Every qualifying purchase

• The VAT relating to each transaction

The VAT return is then auto-generated from those schedules .

The Evidence Requirements

Every input VAT claim must be backed by :

• Valid VAT invoice with supplier’s TIN

• Genuine business transaction

• Expense that qualifies under the law

• Documentation that can withstand review

The Self-Charge Requirement

Under the NTA 2025, businesses must self-charge VAT on vatable expenses or assets if vendors do not include it. Failure to self-charge means the underlying expense does not qualify for capital allowances or deductions .

The VAT Reconciliation Burndown Methodology

The burndown approach follows a systematic sequence: assess, prioritize, reconcile, and sustain.

Step 1: Map Your VAT Transaction Universe

Before you can reconcile, you must understand where your transactions come from and where documentation gaps exist.

Identify all VAT transaction sources:

• Sales invoices issued (output VAT)

• Purchase invoices received (input VAT)

• VAT withheld at source by customers

• VAT self-charged on vendor payments

• Credit notes and adjustments

• Inventory purchases

• Capital asset purchases

For each transaction, verify:

• Valid VAT invoice exists

• Supplier TIN is captured

• VAT amount is correctly calculated

• Transaction qualifies for input VAT recovery

• Documentation is retrievable

Step 2: Build Your Burndown Baseline

Create a visual representation of your reconciliation readiness:

• Current reconciliation completeness (percentage of transactions reconciled)

• Current documentation status (percentage of claims with valid evidence)

• Target state (100% transaction-level reconciliation, fully documented)

• Gap to close (specific items requiring remediation)

Step 3: Prioritize by Risk and Exposure

Not all reconciliation gaps are equal. Prioritize remediation based on:

Highest Risk:

• Large-value input VAT claims without valid invoices

• Transactions where supplier TIN is missing

• VAT withheld by customers but not matched to invoices

• Self-charged VAT not properly documented

• Input VAT on expenses that may not qualify

Medium Risk:

• Minor documentation gaps

• Timing differences between books and returns

• Transactions where invoice exists but details are incomplete

Lower Risk:

• Formatting issues

• Minor rounding differences

Step 4: Reconcile and Remediate

For each priority gap, take action:

Missing Invoices: Request duplicate invoices from suppliers. Where unavailable, assess whether the input VAT claim must be reversed.

Missing TIN: Request supplier TIN. Without it, the input VAT claim is vulnerable to disallowance.

Unmatched Withheld VAT: Match customer withholding schedules to invoices and remittance evidence. Where unmatched, follow up with customers.

Self-Charged VAT: Verify calculations and ensure documentation is complete.

Step 5: Track Sustainment

A one-time reconciliation that reverts to poor habits isn’t compliance. Track sustainment metrics:

• Monthly reconciliation completion rates

• Documentation collection compliance

• Variance resolution timeliness

• NRS inquiry response readines

The VAT Reconciliation Checklist

Output VAT Reconciliation

• Sales invoices issued and VAT charged correctly

• Credit notes and returns properly accounted for

• Zero-rated and exempt supplies correctly classified

• Exported goods and services correctly treated

• VAT on digital supplies correctly applied

Input VAT Reconciliation

• Purchase invoices received with valid VAT

• Supplier TIN captured on all invoices

• Expenses qualify for input VAT recovery

• Input VAT on services and fixed assets correctly claimed

• Self-charged VAT on vendor payments properly documented

VAT Withheld at Source

• Customer withholding schedules obtained

• Withheld VAT matched to invoices

• Remittance evidence from customers obtained

• VAT withheld account maintained separately

Filing and Remittance

• Standard VAT returns filed by 21st

• Withheld VAT remitted by 14th

• Returns filed whether or not economic activity occurred

• Records maintained for six years

The 5-Phase Burndown Framework

Phase 1: VAT Reconciliation Diagnostic

Conduct a comprehensive assessment of your current VAT reconciliation. Review transaction-level completeness, documentation status, and compliance with the new framework. Identify gaps, prioritize by risk, and establish your burndown baseline.

Phase 2: Documentation Remediation

Compile missing invoices. Request supplier TINs. Match withheld VAT to invoices and remittance evidence. Verify self-charged VAT documentation.

Phase 3: System and Process Setup

Implement systems and processes that enable transaction-based reconciliation. Configure ERP or accounting software to capture required data fields. Establish workflows for documentation collection and verification.

Phase 4: Reconciliation Execution

Execute transaction-level reconciliation. Upload schedules to Rev360. Generate VAT returns from schedules. File and remit by statutory deadlines.

Phase 5: Ongoing Monitoring and Sustainment

Track reconciliation metrics. Conduct periodic self-audits. Update processes as regulations evolve. Maintain audit-ready documentation.

Common VAT Reconciliation Pitfalls

1. Manual Netting Outside the System. The new framework requires transaction-based schedules, not manual netting. The return is auto-generated from uploaded schedules .

2. Missing Supplier TIN. Without a valid TIN on the invoice, the input VAT claim is vulnerable to disallowance .

3. Unmatched Withheld VAT. Suppliers must match amounts withheld by customers with invoices, withholding schedules, and remittance evidence. Unmatched deductions create disputes .

4. Ignoring Self-Charge Requirements. Where vendors don’t charge VAT, businesses must self-charge. Failure means the expense doesn’t qualify for capital allowances .

5. Missing the 12-Month Refund Window. VAT refund claims must be filed within 12 months of the transaction .

6. No Dedicated VAT Withheld Account. Businesses obligated to withhold VAT must maintain a dedicated “VAT Withheld Account” for audit accountability .

7. Late Filing. Late VAT filing attracts ₦100,000 for the first month and ₦50,000 for each subsequent month .

8. Assuming Foreign Documentation Sufficient. A VAT position that satisfies other jurisdictions may still leave a Nigerian entity exposed. Nigeria has its own compliance architecture .

How Qeeva Advisory Helps with VAT Reconciliation Burndown

At Qeeva Advisory, we understand that VAT reconciliation under the new framework requires technical expertise, organized documentation, and disciplined execution. Our team helps Nigerian businesses close reconciliation gaps, build audit-ready processes, and maximize VAT recovery.

Our Core Services

VAT Advisory Services – We help you navigate the new VAT framework, including transaction-based reconciliation, input VAT recovery, and compliance with Rev360 requirements.

Tax Advisory Services – We help you navigate Nigeria’s tax system, ensuring compliance with VAT, CIT, WHT, and other obligations.

Tax Audit Defense Service – We provide comprehensive support for businesses facing VAT audits, including documentation compilation and response coordination.

Internal Control Advisory Service – We help you design controls that ensure VAT transactions are accurately captured, documented, and reconciled.

Bookkeeping Services – Accurate financial records are the foundation of VAT reconciliation. Our bookkeeping services ensure your data is accurate and complete.

Advisory Services Nigeria – Our advisory professionals provide strategic guidance on VAT compliance, regulatory engagement, and dispute resolution.

Our VAT Reconciliation Burndown Methodology

Phase 1: VAT Reconciliation Diagnostic – We assess your current reconciliation practices against the new framework. We review transaction-level completeness, documentation status, and compliance. We identify gaps, prioritize by risk, and establish your burndown baseline.

Phase 2: Documentation Remediation – We help compile missing invoices, request supplier TINs, match withheld VAT, and verify self-charged VAT documentation.

Phase 3: System and Process Setup – We help configure your systems to capture required data. We establish workflows for documentation collection and verification.

Phase 4: Reconciliation Execution – We support transaction-level reconciliation, schedule preparation for Rev360, and filing/remittance by statutory deadlines.

Phase 5: Ongoing Monitoring and Sustainment – We track reconciliation metrics, conduct periodic self-audits, and support NRS inquiries.

Frequently Asked Questions

Q: What is VAT Reconciliation Burndown?

A: It is a structured methodology for systematically closing the gap between current VAT reconciliation practices and full compliance under the new transaction-based, evidence-driven framework.

Q: What has changed in VAT reconciliation under the NTA 2025?

A: The return is now schedule-based. You upload detailed schedules of every taxable sale and qualifying purchase, and the return is auto-generated. The system asks “show me the transaction,” not “tell me the amount” .

Q: What evidence is required for input VAT claims?

A: Valid VAT invoice with supplier TIN, genuine business transaction, qualifying expense, and documentation that can withstand review .

Q: What are the VAT filing deadlines?

A: Standard VAT returns: 21st of the following month. VAT withheld at source: 14th of the following month .

Q: How long do I have to claim a VAT refund?

A: VAT refund claims must be filed within 12 months of the transaction. The NRS must process refunds within 30 days .

Q: What is the self-charge requirement?

A: Where vendors don’t charge VAT, businesses must self-charge. Failure means the expense doesn’t qualify for capital allowances .

Q: What is the VAT Withheld Account?

A: Businesses obligated to withhold VAT must maintain a dedicated “VAT Withheld Account” separate from regular VAT accounts for audit accountability .

Q: How can Qeeva Advisory help with VAT reconciliation?

A: We provide diagnostic assessment, documentation remediation, system setup, reconciliation execution, and ongoing monitoring. Our services help you close gaps and maintain audit-ready VAT compliance.

The Bottom Line

VAT reconciliation is no longer a spreadsheet exercise. Under Nigeria’s new tax framework, it is a transaction-based, evidence-driven discipline. Businesses that systematically reconcile every transaction, document every claim, and maintain audit-ready records will maximize VAT recovery, avoid penalties, and demonstrate compliance credibility.

Key Takeaways:

Every Transaction Matters – The new framework is schedule-based. Upload detailed schedules, not summary figures .

Evidence Is Non-Negotiable – Every input VAT claim needs a valid invoice with supplier TIN and genuine business documentation .

Match Withheld VAT – Suppliers must match amounts withheld by customers with invoices and remittance evidence .

Self-Charge Where Required – Where vendors don’t charge VAT, self-charge to preserve deductions and capital allowances .

Meet the Deadlines – Standard VAT: 21st. Withheld VAT: 14th .

Track Sustainment – Reconciliation is not a one-time project. Monitor, update, and maintain audit readiness.

Your job is to be prepared. Map your transactions. Reconcile every item. Document every claim. Meet your deadlines. Seek professional guidance.

With the right approach and the right partner, you can turn VAT reconciliation from a compliance burden into a demonstration of disciplined tax governance.

Suggested Reading from Our Blog

• VAT Computation in Nigeria 2025: Complete Guide to Input Tax, Output Tax, Opening and Closing Inventory Treatment – Complete guide to input tax, output tax, and inventory treatment under the NTA 2025 .

• VAT & Nigeria 2025 Tax Reforms: Key Changes and Implications for Businesses – Key changes including e-invoicing, refund framework, small business exemption, and digital economy VAT expansion .

• Registration and Deregistration of Resident and Non-Resident Persons for VAT in Nigeria Under the 2025 Tax Reforms – Complete guide to VAT registration and deregistration requirements .

• VAT Registration for Foreign Companies in Nigeria: A Complete Guide Under the NTA 2025 – VAT obligations for non-resident businesses .

• Value Added Tax (VAT) in Nigeria 2025: Complete Guide to Nature, Objectives, Administration, Taxable Persons, Goods and Services – Comprehensive VAT overview under the NTA 2025 .

• VAT Under the NTA 2025: What Digital Platforms and Fintechs Need to Know – VAT obligations for digital platforms and fintechs .

• VAT: Why Your Tax-Exempt Status Might Be Costing You More – Understanding the critical distinction between exempt and zero-rated supplies .

Reference Links / Sources

• Qeeva Advisory – VAT Advisory Services – VAT reconciliation, input VAT recovery, and Rev360 compliance.

• Qeeva Advisory – VAT Computation in Nigeria 2025 – Input tax, output tax, and inventory treatment .

• Qeeva Advisory – VAT & Nigeria 2025 Tax Reforms – Key changes and compliance implications .

• Qeeva Advisory – Registration and Deregistration for VAT – VAT registration requirements .

• Qeeva Advisory – VAT Registration for Foreign Companies – Non-resident VAT obligations .

• Qeeva Advisory – Value Added Tax (VAT) in Nigeria 2025 – Comprehensive VAT guide .

• Qeeva Advisory – VAT Under the NTA 2025 for Digital Platforms – Digital platform VAT obligations .

• Qeeva Advisory – VAT: Why Your Tax-Exempt Status Might Be Costing You More – Exempt vs. zero-rated supplies .

Let’s Talk About Your VAT Reconciliation Needs

Building and maintaining audit-ready VAT reconciliation is essential for maximizing recovery, avoiding penalties, and demonstrating compliance. At Qeeva Advisory, we understand the VAT challenges faced by Nigerian businesses under the new framework.

Whether you need help with reconciliation diagnostics, documentation remediation, system setup, or ongoing monitoring, we are here to support you.

📞 Call us: (+234) 802 320 0801, (+234) 807 576 5799

📧 Email: info@qeeva.com

📍 Visit us: 5, Ishola Bello Close, Off Iyalla Street, Alausa, Ikeja, Lagos, Nigeria

Contact us today to schedule a VAT reconciliation consultation. Let us help you achieve full compliance with confidence.

Your journey to VAT compliance excellence starts with a conversation. Let’s talk.