Our Expertise
If you are looking for Tax compliance, Legal and Audit Services in Metro Manila, Philippines then you are in the right place!

Tax compliance and Advisory Services
Our Tax Compliance and Advisory Services provide expert guidance to ensure full BIR compliance and optimize your tax position. From tax return filings (monthly, quarterly, and annual) to strategic tax planning and regulatory updates, we help businesses navigate complex tax regulations, reduce liabilities, and identify growth opportunities.

Audit and Assurance Services
Our Audit and Assurance Services provide independent, accurate financial assessments to support compliance with Philippine standards. From external audits to financial reviews and agreed-upon procedures, we help businesses meet regulatory requirements, enhance transparency, and maintain stakeholder confidence.

Corporate and Legal Services
Our Corporate and Regulatory Services ensure businesses remain compliant with Philippine legal and regulatory standards. From corporate secretarial services and tax residency certification to data privacy compliance, we provide the expertise needed to navigate regulatory requirements effectively, allowing you to focus on growth and operational efficiency.
Stay Ahead of BIR Audits with UNA’s FREE Tax Health Check
Think you’re fully tax-compliant? A quick, 3-minute diagnostic review can uncover risks before the BIR does. Get expert insights, red-flag detection, and a FREE consultation so you can be audit-ready, stress-free, and UNA-assured.
Why Choose UNA?
We are more than a traditional accounting firm—we’re your ally, providing expert advice and support to help grow your business. Experience your UNAdvantage with us. We offer:

Tailored Compliance Solutions
Customized strategies that adapt to your business while ensuring regulatory compliance, focusing on managing risks intelligently.

Comprehensive Compliance Review
In-depth assessments designed to identify and address potential risks while allowing room for strategic flexibility.

Expert Guidance
Advice from seasoned professionals who combine deep expertise with a practical, flexible approach to navigating complex regulations.

Trust and Reliability
Dependable support that ensures compliance while empowering your business to make informed, strategic decisions.
Tax Compliance and Advisory Services
Alleviating stress.
Our team will assist corporations and individuals in the preparation and filing of accurate and timely tax returns with the Bureau of Internal Revenue (BIR) to ensure full compliance with tax laws and reporting requirements. We also provide recommendations for proper tax planning to improve tax efficiency of our clients.
Accounting Services
Getting you started.
Our flexible accounting services covers various accounting functions which our clients can opt to outsource all or just a portion depending on their needs. This includes:
· Billing and collection
· Disbursement processing
· Recording of financial transactions
· End of period reconciliation
Audit and Assurance Services
Giving assurance.
Our audit and assurance services include internal audit, external audit, compilation, review and other agreed upon procedures. We help businesses improve efficiency and profitability by helping assess business risks and internal control and improve existing processes.
Management Consultancy Services
Providing clarity.
Our goal is to help clients improve their financial performance by providing best practice solutions for various challenges faced by businesses. We take the time to gain an in depth understanding of the issues and then make recommendations that is customized to fit the client.
Business Registration Services
Enabling growth.
We assist clients in registering their new business from Securities and Exchange Commission (SEC) or Department of Trade and Industry (DTI) to obtaining licenses and permits from various local government agencies.
Payroll Services
Offering security.
We provide secure payroll services that include standard payroll calculations, bonuses and incentives computation, payslip generation and distribution, statutory compliance, and leave management.
Accounting and Tax Compliance Firm in Pasig City, Metro Manila
Nicolasora, Nicolasora and Associates, Co (NNA). has been in public practice since 2011, operating from Kapitolyo, Pasig City. Through UNA Tax and Accounting Services, we handle tax compliance, audit and assurance, business registration, and corporate and regulatory requirements for businesses in the Philippines.
Our work covers recurring BIR filings, statutory submissions, and the regulatory obligations that come with running a registered business — for domestic corporations, foreign-owned entities and branches, and self-employed professionals.
Accounting and Tax Compliance Firm in Pasig City, Metro Manila
Nicolasora, Nicolasora and Associates, Co (NNA). has been in public practice since 2011, operating from Kapitolyo, Pasig City. Through UNA Tax and Accounting Services, we handle tax compliance, audit and assurance, business registration, and corporate and regulatory requirements for businesses in the Philippines.
Our work covers recurring BIR filings, statutory submissions, and the regulatory obligations that come with running a registered business — for domestic corporations, foreign-owned entities and branches, and self-employed professionals.
Connect With Our Team of Experts
Reach out to our team today to learn how we can tailor our services to fit your business needs.
BOOK A
CONSULTATION
FREE 15-minute consultation
Take advantage of our complimentary 15-minute consultation to discuss your needs or seek advice.
Professional Advisory Services
For consultations over 15 minutes, we provide a minimum of 1-hour sessions at fair pricing for valuable expertise and support. Our team will delve deeper into your requirements and provide comprehensive guidance tailored to your needs.
What Our Clients Say
Companies We've Worked With





Google Reviews
We can help take your business to the next level!
Blogs

When Should You Engage an External Auditor in the PH?
When Should You Engage an External Auditor in the Philippines? If your company needs audited financial statements, the most important decision you will make about that audit

BIR RMO 022-2026: New Consolidated Audit Rules (2026)
Quick Answer: What does BIR RMO No. 022-2026 change for businesses under audit? It consolidates the BIR’s 2026 audit reforms into one unified framework and makes a standardized

Signs Your Business Isn’t Audit-Ready in the Philippines
Signs You’re Not Audit-Ready (Even If You Think You Are) Most finance teams assume they’re audit-ready the moment the financial statements are done. Then the external auditor arrives,
1 OF THE TOP ACCOUNTING FIRMS IN METRO MANILA, PH
Your Partner For Business Success
We are more than a traditional accounting firm. Our team is an ally who will provide sound advice and support you in growing your business.
Reliable End-to-End Tax and Accounting Services
When you collaborate with us, you can expect an end-to-end tax and accounting services that do not break the bank. We offer fair pricing because when you thrive, we do, too.
experienced cPAs
Our team of CPAs and other finance experts is ready to help you thrive – no matter what industry you are in. We have served more than 300 enterprises (from SMEs to large corporations) through accounting, auditing, tax compliance, business registration services, payroll.
Why Partner With Us
Trust that you can count on us when you need guidance on tax, accounting, audit, systems and procedures. With a wealth of public and private accounting experiences, our team of subject matter experts is ready to assist you.
ACCOUNTAHOLICSPH
Looking for a reliable partner to handle your accounting needs?
UNA Tax and Accounting Services works in close partnership with ACCOUNTAHOLICSPH to offer a full range of expert services.
While UNA specializes in tax compliance and regulatory services, ACCOUNTAHOLICSPH focuses on providing exceptional accounting support.
Together, we ensure that every financial aspect of your business is covered—from complex tax strategies to day-to-day accounting needs.
PARTNERSHIPS

XERO
XERO Certified Advisors

QUICKBOOKS
Quickbooks partnership
Events
NNA x Rotary Club Partnership
Purpose in Action, Partnership in Motion. The NNA Team proudly marks another milestone as we officially signed a Memorandum of Understanding (MOU) with the Rotary

NNA’s Anti-Money Laundering Act (AMLA) Seminar
The NNA Team recently completed its Anti-Money Laundering Council (AMLC) Training, a vital initiative designed to reinforce our firm’s commitment to compliance, governance, and ethical

NNA’s ISO Quality Management Systems (QMS) Training
Excellence isn’t just a goal — it’s the NNA Team’s way of working. The NNA Team recently completed an insightful ISO Training course, a learning

Cheers to the End of Audit Season!
On April 30, 2025, the NNA team came together for a well-deserved celebration marking the successful close of this year’s audit season. Held at a

Guided by Purpose, Grounded in Gratitude: Celebrating 14 Years of Nicolasora, Nicolasora and Associates Co. (UNA Tax and Accounting Services & ACCOUNTAHOLICSPH)
Fourteen years ago, our journey began with a single purpose: to serve with integrity and help businesses grow through expert tax and accounting services. Known

Celebrating Auditors of the Future!
Our team gathered on April 19, 2024, for a memorable celebration marking the end of the challenging audit season. The event was held at Villa
