How a Tax Health Check Helps You Avoid BIR Audits and LOAs
Running a business in the Philippines? Then you know that the Bureau of Internal Revenue (BIR) doesn’t take tax compliance lightly. One misstep—an incorrect filing, missed deadline, or underreported income—could trigger a Letter of Authority (LOA) or full audit.
But here’s the good news: you can take action before the BIR does.
A Tax Health Check is a proactive review of your tax records, returns, and supporting documents—designed to identify red flags early, address them promptly, and protect your business from unexpected audits and costly penalties.
Let’s break down exactly how it works—and why it could save your business hundreds of thousands of pesos.
What Is a BIR Letter of Authority (LOA)?
A Letter of Authority is an official document that allows the BIR to investigate your business. Once issued, BIR officers are authorized to examine your books, validate your tax payments, and review your income and expense reports.
Why It Matters:
Once you receive an LOA, you’re on a tight schedule to respond. Unprepared businesses risk:
- Hefty penalties for errors or late responses
- Disallowed deductions due to missing documents
- Business disruption during the audit period
Best solution? Please don’t wait for it to arrive. A tax health check helps ensure your records are clean before the BIR knocks.
What Does a Tax Health Check Include?
Think of it as a complete diagnostic for your tax records. At UNA Tax & Accounting Services, our tax health check includes:
- Review of tax returns (VAT, Income Tax, Percentage Tax, Withholding)
- Cross-checking sales vs. expenses for inconsistencies
- Verification of ORs, BIR Form 2307, and supporting documents
- Assessment of BIR deadlines and penalty risks
- Reconciliation of books of accounts
- Identification of common audit triggers
- Clear action plan to resolve findings
Pro Tip: An inaccurate filing from a year ago can still trigger an audit today. It’s never too late—or too early—to start reviewing.
Common Red Flags That Lead to BIR Audits
Here are the top issues we often uncover during tax health checks:
| Red Flag | Why It’s Risky |
| Inconsistent sales between VAT and Income Tax returns | Signals underreporting to the BIR |
| Missing or unnumbered Official Receipts (ORs) | Can lead to disallowed sales or deductions |
| Late or unfiled tax returns | Automatic penalties (25%–50%) + 12% interest |
| Unmatched 2307 tax credits | Can delay ITR filing or disqualify tax credits |
| Books are not updated or registered. | Can invalidate returns and raise red flags in audits |
Even if these issues seem small, they can escalate during an audit, costing you more than just stress.
When Should You Get a Tax Health Check?
At least once a year—but ideally:
- Before the annual filing season (especially ITR and Audited FS)
- Before renewing permits or applying for tax clearance
- Before a BIR registration update or TIN cancellation
- After switching accountants or accounting software
- Before expanding your business or hiring more staff
- Regular tax check-ups = no nasty surprises.
Who Needs a Tax Health Check the Most?
If you fall under any of these, a tax health check is strongly recommended:
- Growing SMEs or startups scaling operations
- Foreign-owned corporations operating in the Philippines
- Businesses switching from sole proprietorship to corporation
- Companies applying for BOI/PEZA registration or tax incentives
- Firms with prior BIR findings or open cases
Key Benefits of a Tax Health Check
| Benefit | Why It’s Important |
| Early detection of errors | Avoid a last-minute scramble and penalties. |
| Audit-proof your business | Resolve red flags before they escalate. |
| Tax savings | Ensure valid deductions are correctly claimed. |
| Peace of mind | Confidence that you’re fully compliant |
| Better decision-making | Understand your real tax position before expanding. |
Real Case: How a Business Avoided ₱250,000 in Penalties
One of our clients—a mid-sized consultancy firm—came in for a year-end tax check. We discovered they hadn’t been filing expanded withholding tax correctly for vendor payments.
With our help, they:
- Amended 4 quarters of returns
- Paid only the minimum compromise penalties
- Avoided a full-blown LOA and audit
Without that check-up, they could have faced ₱250,000+ in back taxes and fines.
Don’t Wait for a Letter of Authority—Take Control Today
At UNA Tax & Accounting Services, we’ve helped hundreds of businesses identify tax risks early, stay compliant, and avoid BIR trouble.
Here’s What You Get with Our Tax Health Check:
- Full review of all BIR returns and ORs
- Reconciliation of books and ledgers
- Red flag report + action plan
- Optional assistance with corrections and refilings
Book Your Free 15-Minute Consultation Now
It only takes a few minutes to start protecting your business.
Email us at: sales@una-acctg.com
Visit: www.una-acctg.com
Or message us to schedule a quick, no-pressure consult.
Stay compliant. Stay confident. Stay #AheadWithUNA.
