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Tax Filing Services in Singapore

Corporate tax, GST, personal income tax, and cross-border structuring managed by a qualified team so you stay compliant with IRAS and pay the right amount, not more.

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Why Singapore is One of the Best Places to Be Taxed

Singapore's tax framework is designed to attract business and reward investment. For founders, knowing what is available makes a real difference to what you actually pay. 

A 17% Rate with Room to Go Lower

Start-up Tax Exemption, Partial Tax Exemption, and sector-specific incentives mean most companies pay significantly less in their early years.

No Capital Gains Tax, No Dividend Tax

Gains on asset disposals and dividends paid to shareholders are not taxed. This shapes how smart businesses structure exits and distributions.

90+ Double Tax Agreements

Singapore's DTA network is one of the most extensive in Asia, reducing withholding tax exposure and preventing double taxation on cross-border income.

A Regulator That Rewards Compliance

IRAS is efficient and transparent. Businesses that file accurately and on time rarely face problems.

How We Deliver Tax Value

At Ascentium, we combine compliance execution with strategic advisory to provide a complete tax solution.
Step 1

Understand Your Tax Position

We review your business structure, operations, transactions and tax obligations to establish a clear understanding of your tax profile and compliance requirements.

Step 2

Identify Risks and Opportunities

We assess tax exposures, inefficiencies, incentive opportunities, treaty benefits and areas for optimisation.

Step 3

Execute Compliance with Accuracy

We prepare and submit tax filings, computations, supporting schedules and regulatory submissions accurately and on time.

Step 4

Manage Regulatory Engagement

We assist with tax audits, authority enquiries, voluntary disclosures, dispute resolution and ongoing communication with tax authorities.

Step 5

Provide Ongoing Strategic Guidance

As your business evolves, we continue to advise on transactions, restructuring initiatives, expansion plans and regulatory developments.

This integrated approach helps clients move from reactive compliance to proactive tax strategy.

Integrated Tax Compliance, Tax Advisory and Transfer Pricing Services

From annual corporate tax filing to cross-border structuring, we cover every tax obligation your business is likely to face.

Corporate Tax Compliance and Filing

We provide reliable tax compliance support for companies across industries and growth stages.

Our services include:

  • Preparation and submission of income tax returns and computations for businesses i.e. corporations, partnerships and sole proprietorships

  • Preparation and submission of Estimated Chargeable Income (ECI) and provisional tax computations

  • Tax authority correspondence and enquiry management

  • Ongoing compliance monitoring

Our objective is accurate compliance, timely filing and practical tax efficiency. 

Personal Income Tax

We help individuals manage personal tax obligations and identify legitimate planning opportunities.

Our services include:

  • Personal income tax return preparation and filing

  • Employer reporting support

  • Expatriate and non-resident tax compliance

  • Tax planning for employers and employees

We provide clarity and confidence in managing personal tax obligations.

GST & Indirect Tax

For GST-registered businesses and those approaching the S$1 million taxable turnover threshold.

Indirect taxes can significantly affect cash flow, pricing and operational efficiency.

Our services include:

  • GST/indirect tax return preparation

  • Indirect tax health check

  • Registration and deregistration support

  • Input tax recovery reviews

Withholding Tax

Cross-border transactions often trigger withholding tax obligations that require careful analysis and timely compliance.

Our services include:

  • Withholding tax computation and filing

  • Double Tax Agreement (DTA) analysis

  • Advisory on payment structures and tax implications

We help minimise tax leakage while ensuring compliance.

Tax Clearance

Tax clearance is often required when exiting a market or resolving historical tax matters.

Our services include:

  • Corporate tax clearance

  • Individual tax clearance

  • Resolution of historical tax issues

  • Tax authority coordination and submissions

Tax Due Diligence

Understanding tax exposures before a transaction reduces risk and improves outcomes. 

Our services include:

  • Buy-side and sell-side tax due diligence

  • Historical compliance reviews

  • Tax risk assessments

  • Post-acquisition integration support

Global Mobility Tax

As businesses expand globally, employee mobility creates complex tax obligations.

Our services include:

  • Expatriate tax compliance

  • Cross-border employment tax advisory

  • Business traveller tax assessments

  • Employer reporting obligations

  • Assignment and relocation tax support

Transfer Pricing

Tax authorities are placing greater emphasis on transfer pricing compliance and documentation.

Our services include:

  • Transfer pricing documentation

  • Benchmarking studies

  • Related-party transaction reviews

  • Transfer pricing policy development

Trust Tax Compliance

Family enterprises and family offices with trust structures require ongoing compliance and governance.

Our services include:

  • Trust tax return preparation

  • Ongoing compliance and advisory

Strategic Tax Advisory Services

Turning tax complexity into strategic opportunity
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Tax Support Across the Full Business Lifecycle

Tax needs evolve as businesses grow, from incorporation to expansion, acquisitions, restructuring and cross-border operations.

Ascentium provides continuity across every stage, acting as a single integrated tax partner delivering clarity, control, and sustainable tax efficiency.

Related Accounting & Tax Services in Singapore

Accounting

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Transfer Pricing

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What Our Clients Are Saying

Rxilient Scroll Logo
Client Since
2024
Client Rating
Thank you for facilitating a smoother transition across our markets. Your team provided clear coordination, consistent support, and a reliable single point of contact throughout the process. We truly appreciate your responsiveness and the confidence demonstrated nat every stage.
WenTao Liu
Rxilient Health Pte Ltd.

Frequently Asked Questions (FAQs)

Insights & Resources

Singapore GST Guide 2026: Rates, Registration & Filing Rules

GST in Singapore: How the 9% Tax Affects Your Business in 2026

15 September 2026
How to Deregister for GST in Singapore: Requirements & Process

How to Deregister for GST in Singapore: Requirements and Process (2026 Guide)

15 September 2026
What is GST InvoiceNow in Singapore 2026? Simple Guide for Businesses

What is GST InvoiceNow in Singapore in 2026?

15 September 2026
Rxilient

Rxilient Health Pte Ltd.

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