BIR Inventory List Guide (2026 Updated): Requirements and Sample Format

Every business in the Philippines that holds inventory for sale, whether in manufacturing, retail, wholesale, real estate, or construction, must submit an annual inventory list to the Bureau of Internal Revenue (BIR). The deadline for calendar-year companies is January 30, 2026, and failing to comply can result in penalties of up to ₱25,000 per year plus surcharges. Companies that follow a non-calendar reporting period should adjust their submission date accordingly, generally 30 days after the fiscal year-end.

This guide covers everything you need to prepare and submit your BIR inventory list for Taxable Year 2025: who must file, what formats to use (Annex A, B, C), how to submit through the TRRA Portal, what penalties apply for late filing, and a practical step-by-step preparation checklist based on current BIR regulations including RMC No. 8-2023, RMC No. 66-2024, and the implications of RMO No. 1-2026. Understanding how periodic inventory reporting systems tie together helps ensure your submissions align with BIR expectations from the start.

What is the Inventory List?

The BIR inventory list is a sworn declaration of all goods, materials, and merchandise your business holds, whether for sale, in production, or stored as raw materials, as of a specific reporting date (usually December 31 for calendar-year filers). Its legal basis comes from Section 236 of the National Internal Revenue Code (NIRC), reinforced by RMC No. 57-2015 and updated submission procedures under RMC No. 8-2023.

The inventory list is not just a compliance formality. The BIR uses it as a cross-referencing tool during audits, matching the figures you report against your books of accounts, Audited Financial Statements (AFS), and Annual Income Tax Return (ITR). Under the newly issued RMO No. 1-2026, the inventory list is now explicitly part of the standardized audit checklist (Annex B), meaning examiners are required to verify it in every single-instance audit. If the numbers don’t reconcile across these documents, it raises a red flag that can trigger an expanded audit.

Who Must Submit?

Not every registered business is required to file an inventory list, but the threshold catches more companies than most people expect. Under BIR regulations, submission is mandatory for businesses with a tangible asset-rich balance sheet, defined as having 50% or more of total assets classified as working capital assets (accounts receivable, inventory, and similar current assets).

In practice, this covers nearly all businesses in the following industries:

• Manufacturing — raw materials, work-in-process, and finished goods
• Merchandising and Retail — goods purchased for resale
• Wholesale and Distribution — stock held across warehouses
• Real Estate — land, housing units, and lots held for sale (reported under Annex B-1)
• Construction — materials and supplies allocated to ongoing projects (reported under Annex C)

Important edge case: Even if your business has zero inventory on December 31, you are still required to submit if you held inventory at any point during the taxable year. Submitting a nil report is better than not submitting at all. For companies with multiple branches, the TRRA Portal allows consolidated submission; you don’t need to file separately per branch (per RMC No. 66-2024 guidelines)

Compliance and Penalties: What’s at Stake

Direct Penalties Under NIRC Section 250

Failing to submit the inventory list on time is classified as a failure to file an information return under the National Internal Revenue Code. The penalty is ₱1,000 per failure, with a maximum of ₱25,000 per calendar year per type of return. This applies regardless of whether there’s an actual tax deficiency; it’s a flat administrative penalty for non-compliance.

Tax Deficiency Consequences

The bigger risk isn’t the ₱1,000 fine; it’s what happens when the BIR finds discrepancies during an audit. If the examiner determines that your inventory figures are misstated and this results in underpayment of income tax or VAT, the following apply on top of the basic tax due:

• Surcharge: 25% for late or incorrect filing; 50% if the BIR determines willful neglect or fraud
• Interest: 12% per annum on the deficiency amount (subject to adjustment based on BSP reference rate)
• Compromise penalty: A negotiable amount based on the BIR’s published Schedule of Compromise Penalties, often used to settle without a full formal assessment

How Inventory Errors Lead to Tax Problems

Overstated inventory directly distorts the link between stock figures and your cost of goods sold, which can lead to understated taxable income and trigger an audit. Here’s how common errors play out:

• Overstated inventory → inflated ending inventory → understated COGS → overstated net income → potential excess tax payment (or, if the BIR catches it going the other direction, an underpayment assessment)
• Understated inventory → understated ending inventory → overstated COGS → understated net income → underpayment of income tax and VAT
• Inconsistency between inventory list and AFS → BIR examiner raises an audit query → investigation expands to cover all tax types under the new single-instance audit framework (RMO No. 1-2026)

Many of the mistakes that commonly lead to BIR scrutiny stem from mismatches between what’s on the inventory list and what’s in the financial statements. If you’re already running your books through a BIR-accredited digital system, make sure the data it generates is fully consistent with the inventory list you submit. Ignoring the compliance requirements for BIR-registered point-of-sale machines can compound your issues and lead to additional penalties on top of inventory list violations

BIR inventory list compliance is critical for verifying taxable income and maintaining accurate financial planning, as late or inaccurate submissions can lead to legal issues and reputational risk for businesses.

Darryl Esguerra, Inventory & Logistics Consultant

What to Include in the BIR Inventory List

Your submission needs to follow a format that the BIR will actually accept, with each line item covering the required fields. Below is the standard Annex A structure used by manufacturing, merchandising, and retail businesses:

Valuation Methods: Which One to Use

The method you use to assign cost to each item matters; the BIR expects it to be consistent with your audited financial statements. Here’s a quick breakdown:

• FIFO (First In, First Out) — Assumes the oldest stock is sold first. Most common for perishable goods and industries where prices trend upward. Results in lower COGS and higher taxable income in inflationary periods.
• Weighted Average — Averages the cost of all units available for sale during the period. Simpler to apply for businesses with high-volume, low-variation products.
• Lower of Cost or Net Realizable Value (LCNRV) — Required under PAS 2 (Philippine Accounting Standard 2). If the market value of inventory drops below cost, you must write it down to the lower amount.

Understanding how FIFO, weighted average, and other approaches differ in practice helps you choose a policy that aligns with your financial statements and holds up under audit. Whatever method you use, the critical rule is consistency — switching methods between years without disclosure and justification will raise questions during examination.

Keeping your warehouse records clean and organized year-round simplifies BIR reporting and saves you from last-minute reconciliation headaches every January.

What NOT to Include

The inventory list covers only items that form part of Cost of Goods Sold (COGS) or Cost of Sales. Exclude the following:

• Capital assets — Machinery, vehicles, office equipment, and buildings. These are classified as Property, Plant, and Equipment (PPE) and are tracked and reported under a separate fixed asset register, not in the BIR inventory list.
• Office supplies — Pens, paper, printer toner, these are period expenses, not inventory.
• Consigned goods you don’t own — If another party consigned goods to your warehouse but you haven’t purchased them, exclude them. Conversely, include goods you consigned to others that you still own.
• In-transit goods (FOB Destination) — If goods are shipped FOB Destination and haven’t arrived at your warehouse by the reporting date, ownership hasn’t transferred yet

Keeping these records accurate throughout the year is what makes January 30 filing straightforward or stressful. Businesses that track stock manually often find their year-end data inconsistent, especially when multiple warehouses or product lines are involved. A fully integrated ERP solution keeps item descriptions, quantities, and valuations updated automatically, so pulling your year-end figures takes minutes rather than weeks.

How to Submit: Three Methods

Once your inventory data is ready and saved in the prescribed format on a DVD-R or USB flash drive, the next step is choosing how to submit it to the BIR. As of 2024, hard copy submission has been removed — all submissions must now be in soft copy. There are three accepted methods, each with its own advantages depending on your business setup:

TRRA Portal Step-by-Step Walkthrough

This is the BIR’s preferred method as of RMC No. 66-2024. Here’s exactly how to do it:

1. Access the Portal — Go to the BIR website → eServices section → TRRA Portal
2. Select the right transaction — Choose “Submission of Inventory Report and Notice (Under RR No. 7-2024)”
3. Choose your RDO — Select the Revenue District Office where your business is registered
4. Download the suggested format — If you haven’t prepared your inventory file yet, the portal provides a downloadable template
5. Attach your scanned documents — Upload the inventory list in PDF format (max 4MB per file). If your file exceeds the limit, split it into multiple PDFs
6. Submit — Once uploaded, the system automatically sends an email notification to your RDO’s Compliance Section
7. Save your confirmation — Screenshot or save the confirmation page and email as your proof of timely submission

Cross-check tip: If your business is already enrolled in the BIR’s digital invoicing program, double-check that your e-invoice data reconciles with the inventory figures you’re reporting. Similarly, businesses filing sales data electronically through the BIR portal should cross-check those numbers against the inventory list to avoid red-flag discrepancies during audit

Download BIR Inventory List Template

Click Here to Download the Template

You can submit your inventory report and/or notice in one of these ways:

1. Through the BIR’s online Taxpayer Registration-Related Applications (TRRA Portal).
2. By emailing the Compliance Section of your Revenue District Office (RDO).
3. By manually submitting it in person to the Compliance Section of your RDO.

These rules came into effect on June 14, 2024, after being published on the BIR’s website.

Step-by-Step: How to Prepare Your BIR Inventory List

Doing an actual hands-on count of everything in your warehouse is the foundation of an accurate BIR inventory list — estimation or system-only figures won’t hold up under audit. Here’s a practical timeline to keep your team on track.

8-Week Preparation Timeline

Physical Count Best Practices

Before counting, consider sorting your stock into A, B, and C tiers based on value so your team spends extra verification effort where it matters most. High-value “A” items (typically 10–20% of SKUs representing 70–80% of total inventory value) should be double-counted by a separate team.

• Team structure: Assign 1 counter + 1 recorder per zone. The counter handles the physical count; the recorder logs quantities and confirms item descriptions. They should not swap roles during the process.
• Freeze period: Pause all inbound deliveries and outbound shipments during the count window. If a freeze is impractical, implement strict cut-off controls, log every movement during the count with timestamps.
• Count tags: Use pre-numbered, two-part count tags. One part stays on the shelf; the other goes to the reconciliation team. This prevents double-counting and creates an audit trail.
• High-value items: Record serial numbers for items above a set threshold. Cross-reference with your fixed asset register to avoid accidentally including capital assets.
• Auditor coordination: Under the Philippine Standards on Auditing (PSA), your external auditor is expected to observe the physical count. Schedule the count date with them in advance.

Post-Count Reconciliation

After finalizing your count, reconcile the results against what you carried over from last year’s closing balance to identify and document any variances. This is where errors surface — and where your documentation matters most.

1. Match count sheets to perpetual/ERP records — Generate a variance report showing differences between physical count and system quantities.
2. Investigate material variances — Anything beyond a 1–2% threshold (depending on your industry) should be traced to a root cause: theft, spoilage, recording errors, unreported returns, or timing differences.
3. Apply valuation rules — Ensure the unit costs on your inventory list match the valuation method declared in your AFS. If any items have declined in value below cost, apply the LCNRV write-down per PAS 2.
4. Prepare adjustment journal entries — Document every adjustment with supporting evidence (count sheets, photos, supervisor sign-off). These entries should be reflected in your December 31 trial balance before generating the AFS.

Looking at how your stock moved throughout the year post-count helps flag slow-moving items and valuation write-downs you need to record before submission

How RMO No. 1-2026 Changes the Game for Inventory Compliance

In early 2026, the BIR issued Revenue Memorandum Order No. 1-2026, which overhauls the bureau’s audit framework. While the order covers all types of tax examinations, it has specific implications for businesses that file inventory lists.

What Changed

Under the old framework, multiple audit teams could issue separate electronic Letters of Authority (eLAs) covering different tax types for the same taxable year. RMO No. 1-2026 replaces this with a Single-Instance Audit Framework, one eLA per taxable year, covering all internal revenue taxes simultaneously. This means the examiner reviewing your income tax will also be looking at your VAT, withholding taxes, and supporting documents like the inventory list in a single, consolidated examination.

Why It Matters for Your Inventory List

The inventory list is now included in the standardized audit checklist (Annex B of RMO No. 1-2026). This means examiners are specifically required to:

• Verify that the inventory list was submitted on time
• Cross-reference inventory values against your books of accounts, AFS, and ITR
• Check for consistency in the valuation method used across all documents
• Flag discrepancies that suggest underreported sales or overstated expenses

Under the new risk-based selection criteria, businesses showing an underdeclaration of sales or income of 30% or more become priority audit targets. An inventory list that doesn’t match your financial statements is one of the easiest ways for the BIR to identify that gap.

The Takeaway

Treat the inventory list as an integral part of your overall tax compliance package — not a standalone filing you handle separately. Make sure the figures on your inventory list, books of accounts, AFS, and ITR all tell the same story. If there’s a legitimate reason for a difference (e.g., post-year-end adjustments), document it thoroughly.

Beyond inventory, the new audit framework also scrutinizes withholding tax accuracy. Make sure your payroll reflects the latest withholding tax brackets you should be applying this year to avoid compounding your audit exposure

BIR Inventory List Format by Annex Type

The BIR prescribes different reporting formats depending on your industry. Using the wrong annex or mixing formats is a common mistake that delays processing.

For retail businesses, keeping track of fast-moving SKUs across multiple store locations throughout the year makes Annex A preparation significantly easier when January comes. If you’ve been maintaining clean records per branch, generating the Annex A file becomes a matter of exporting, not rebuilding from scratch.

Pharmaceutical businesses face additional complexity because they must track expiry dates, lot numbers, and lot-based valuation for FDA compliance in addition to BIR requirements. Systems built specifically for drugstore and pharmaceutical compliance can automate these unique requirements so you don’t have to maintain parallel tracking sheets.

Soft Copy Requirements

All taxpayers are required to submit a soft copy alongside the hard copy, stored on a USB flash drive or DVD-R (not CD-R). Key formatting rules:

• File format: Excel (.xlsx) using the BIR-prescribed Annex template.
• Label the storage media clearly: Taxpayer Name, TIN, RDO Code, “Inventory List — CY 2025”.
• The soft copy data must match the hard copy exactly; any discrepancy voids the submission.

Annex D — Notarized Certification

Alongside the inventory list itself, you must submit a Notarized Certification (Annex D) signed by the owner, president, or authorized officer, declaring that:

• The inventory list is true, correct, and complete.
• The valuation method is consistent with the company’s Financial Statements.
• The signatory is duly authorized to make the certification.

Common Mistakes to Avoid

To illustrate how things can go wrong, here’s a realistic scenario based on common compliance issues BIR examiners encounter.

Scenario: A mid-sized retail business with three branches in Metro Manila

The company uses a perpetual inventory system in its ERP, but only performs a physical count once a year in late December. During the count, they discover several problems:

1. Branch 2 didn’t freeze shipments during the count. Several deliveries arrived mid-count, leading to double-counted items. The branch reported 340 units of a product that the system only showed 285 for, a 19% variance that went unexplained in the final Annex A file.
2. The valuation method on the inventory list said “FIFO,” but the AFS used Weighted Average. When the BIR examiner compared the two documents, the inconsistency flagged a deeper review of the entire income tax computation.
3. Slow-moving stock wasn’t written down. Over ₱1.2 million in expired and damaged goods was still carried at full cost in the inventory list. Under PAS 2, these should have been written down to net realizable value — resulting in overstated inventory, understated COGS, and overstated taxable income that drew a surcharge.
4. The soft copy didn’t match the hard copy. An updated Excel file was submitted on the USB, but the printed hard copy was from an earlier draft. The RDO flagged the discrepancy and required a resubmission.

The takeaway: Most inventory list problems aren’t caused by not knowing the rules — they’re caused by rushing the process in January. An 8-week preparation timeline (see section above) eliminates nearly all of these issues.

Conclusion

The BIR inventory list is one of those compliance requirements that feels deceptively simple until you’re scrambling to reconcile numbers at midnight on January 29. The businesses that handle it smoothly are the ones that treat it as a year-round process rather than a once-a-year deadline.

Here’s a quick recap of what makes a clean, audit-ready submission:

• Submit on time (January 30 for calendar-year filers, or 30 days after your fiscal year-end)
• Use the correct Annex format for your industry (A, B-1, or C)
• Ensure your valuation method is consistent across the inventory list, AFS, and ITR
• Keep your hard copy and soft copy identical
• Document all variances and adjustments with supporting evidence
• Retain proof of submission (stamped receiving copy or TRRA Portal confirmation email)

With the introduction of RMO No. 1-2026 and its single-instance audit framework, the stakes for getting this right are higher than before. A well-prepared inventory list isn’t just about avoiding penalties — it’s about reducing your overall audit risk.

Picking the right tool for your warehouse and accounting needs can help maintain accuracy and simplify reporting when submission deadlines approach. Having one platform that connects your warehouse, accounting, and compliance data helps maintain accurate records year-round — so BIR submission becomes routine, not a fire drill.

Frequently Asked Questions (FAQ) about the Inventory List of BIR

• What is an inventory list for BIR?

  The inventory list for BIR is an official record that provides a detailed breakdown of a company’s inventory at the end of the fiscal year. It’s required to ensure accurate reporting for tax purposes.

• Can I submit the inventory list digitally?

  Yes, the BIR allows digital submissions, but the format and labeling must adhere to their requirements.

• How can HashMicro help with inventory list compliance?

  HashMicro’s Inventory Management System automates inventory tracking, provides customized reports, and offers reminders for compliance deadlines, making it easier to prepare an accurate BIR-compliant inventory list. Aside from that, HashMicro also provides BIR POS and accounting software for end-to-end business processes.

• What should not be included in the BIR inventory list?

  Items such as office supplies, capital assets, and depreciated assets should not be included as they do not qualify as inventory.