Singapore YA 2026 Corporate Income Tax Filing Guide: Key Dates, Requirements, and Step-by-Step Checklist
Singapore YA 2026 Corporate Income Tax Filing Guide: Key Dates, Requirements, and Step-by-Step Checklist
The Inland Revenue Authority of Singapore (IRAS) has officially opened the Corporate Income Tax (CIT) filing season for Year of Assessment (YA) 2026. Companies operating in Singapore must file their Income Tax Return for the financial year ending in 2025 by the statutory deadline of 30 November 2026.
Even if your company was dormant or incurred a financial loss in FY 2025, on-time filing remains mandatory under the Income Tax Act 1947.
Key Requirements & Deadlines
Category | Details |
Statutory Filing Deadline | 30 November 2026 |
Mandatory Filing Requirement | Required for all active, loss-making, and dormant companies |
Primary Portal | myTax Portal (mytax.iras.gov.sg) |
Access Requirement | Corppass authorisation under Corporate Tax (Filing and Application) |
Step-by-Step Filing Preparation
1. Prepare Financials and Tax Computations
Assemble your FY 2025 audited or unaudited financial statements, tax computation schedules, and relevant supporting documents. Directors remain legally responsible for accurate filing, even when employing a tax agent.
2. Verify Corppass Approvals
Ensure designated staff or external tax agents hold active Approver status in Corppass for the digital service Corporate Tax (Filing and Application).
3. Choose the Correct Return Form
Form C-S (Lite): For qualifying small companies with revenue of $200,000 or below in FY 2025 (requires filling only six fields).
Form for Dormant Company: For businesses with no business activities or income in FY 2025 (requires filling only two fields).
Form C-S / Form C: For standard corporate tax reporting.
4. File via myTax Portal
Submit the return early at mytax.iras.gov.sg to resolve potential system or data discrepancies before the peak filing window.
Key Resources & Official Links
CIT Filing Portal: mytax.iras.gov.sg
One-Stop Filing Guide: go.gov.sg/cit-2026
Corppass Setup Guide: go.gov.sg/corppassauth
Calendar Reminder Download: go.gov.sg/iras-cit-calendar2026
CIT E-Learning Modules: go.gov.sg/cit-elearning
Frequently Asked Questions
Does a dormant Singapore company need to file YA 2026 tax returns?
Yes. All registered companies must file an Income Tax Return annually unless IRAS has granted a formal waiver of tax return submission. Qualifying dormant companies can use the simplified 2-field Form for Dormant Companies.
What is the penalty for missing the 30 November statutory deadline?
Failure to file by 30 November is an offence under the Income Tax Act 1947, subject to composition fines, summonses, or legal enforcement actions by IRAS.
Engaging Bestar Singapore for FY 2025 Financials & Tax Computation Preparation
Singapore YA 2026 Corporate Income Tax Filing Guide: Key Dates, Requirements, and Step-by-Step Checklist
Preparing financial statements and tax computation schedules for Year of Assessment (YA) 2026 requires strict adherence to Inland Revenue Authority of Singapore (IRAS) standards. Whether your company requires audited or unaudited financial statements for Financial Year 2025, Bestar Singapore provides specialized corporate tax and accounting support to ensure full statutory compliance before the 30 November 2026 filing deadline.
Under the Singapore Income Tax Act 1947, company directors retain ultimate legal responsibility for the accuracy of all filed income tax returns. Partnering with a professional tax agent like Bestar helps streamline document collation, tax schedules, and myTax Portal submissions while mitigating compliance risks.
Core Documentation Requirements for YA 2026
To prepare an accurate corporate tax submission for FY 2025, Bestar Singapore assists in compiling and organizing the following primary financial records:
Requirement Category | Description & Documents Included |
Financial Statements | Audited or unaudited FY 2025 financial statements prepared under Singapore Financial Reporting Standards (SFRS). |
Tax Computation Schedules | Detailed breakdown of taxable profit adjustments, capital allowance schedules, and exempt income sources. |
Supporting Schedules | General ledgers, fixed asset registers, dividend/interest vouchers, and trade contract documentation. |
Corppass Authorisation | Designation of Bestar as an authorized "Approver" for the Corporate Tax (Filing and Application) digital service. |
How Bestar Singapore Prepares Your FY 2025 Filing
1. Compilation of Audited or Unaudited Financial Statements
Bestar prepares SFRS-compliant financial statements for qualifying small companies or coordinates audit-ready financial packages for entities subject to mandatory statutory audit under the Singapore Companies Act 1967.
2. Detailed Tax Computation & Capital Allowance Calculation
Net profit reported on financial statements often differs from taxable income. Bestar identifies non-deductible capital expenses, claims applicable capital allowances on equipment, and applies statutory relief schemes such as the Partial Tax Exemption (PTE) or Start-Up Tax Exemption (SUTE).
3. Form Selection & Digital Submission
Bestar evaluates whether your company qualifies for simplified reporting models—such as Form C-S (Lite) for revenues up to $200,000 or the Form for Dormant Company—or standard Form C reporting, executing direct submission via myTax Portal (mytax.iras.gov.sg).
Frequently Asked Questions
Can Bestar file YA 2026 tax returns if my company uses unaudited financial statements?
Yes. Small exempt private companies that meet the "small company" concept under the Companies Act 1967 are not required to audit their financial statements. Bestar can prepare tax computations using unaudited reports provided they comply with SFRS.
Does hiring Bestar relieve directors of tax filing liability?
No. Under Singapore tax law, company directors remain legally accountable for the completeness and accuracy of the tax return, even when engaging an authorized tax agent.
When should companies begin preparing FY 2025 tax schedules?
Companies are advised to begin collating FY 2025 financial records immediately after financial year-end to ensure sufficient lead time for capital allowance assessments and Corppass approvals ahead of the 30 November deadline.
To claim Capital Allowances (CA) for Financial Year 2025 (Year of Assessment 2026) in Singapore, the Inland Revenue Authority of Singapore (IRAS) requires businesses to maintain adequate record-keeping and documentation.
While companies submitting Form C-S or Form C-S (Lite) do not need to attach these documents upfront when filing, they must prepare and retain them for at least 5 years in case of an IRAS tax audit or query. Companies filing Form C must include detailed computation schedules with their return.
Essential Supporting Documents Required
1. Proof of Purchase & Acquisition
Supplier Invoices & Tax Invoices: Stating the seller, description of the fixed asset, date of purchase, and itemized costs.
Delivery Orders & Receipts: Confirming the date the asset was actually delivered and put into operational use.
Contracts & Sale Agreements: Purchase contracts or agreements, particularly for high-value machinery, plant, or custom equipment.
2. Financial & Payment Evidence
Bank Statements & Payment Vouchers: Verification showing legal liability was created and payment was processed.
Hire-Purchase (HP) / Loan Schedules: If acquired through financing, detailed schedules showing principal capital repayments vs. non-deductible interest elements.
3. Fixed Asset & Tax Records
Fixed Asset Register (FAR): Documenting acquisition date, cost, depreciation rate, location, disposal date, and current status.
Capital Allowance Schedule / Computation Worksheet: A detailed schedule showing:
Asset description and cost.
Section of the Income Tax Act claimed under (e.g., Section 19A 1-year write-off for computers/low-value assets $\le \$5,000$, 3-year write-off, or working-life method).
Opening Tax Written Down Value (TWDV), current year additions/disposals, CA claimed, and closing TWDV.
4. Asset Disposal / Scrap Documents (If Applicable)
Sales Invoices / Disposal Records: For calculating Balancing Charges or Balancing Allowances if an asset was sold, scraped, or written off in FY 2025.
Scrap / Decommissioning Certificates: Evidence confirming the asset was physically scrapped or removed from business use.
5. Commercial Justification Documents (Special Cases)
Subcontractor Agreements: If claiming CAs on machinery/equipment provided to third-party subcontractors, retain contracts showing the commercial necessity and benefit to your business.
Non-Qualifying Assets (Common Exclusion)
Ensure no claims are made for restricted assets such as S-plated private passenger cars. Commercial vehicles (vans, lorries, motorcycles) require vehicle registration logs proving business deployment.
Bestar Singapore: End-to-End Accounting, Tax, Audit, and Advisory Services
Bestar Singapore is a professional services firm offering integrated solutions in accounting, statutory audit, corporate tax compliance, corporate secretarial, and business advisory services. Designed for multinational corporations, small and medium enterprises (SMEs), and foreign startups expanding into Asia, Bestar streamlines complex corporate governance and regulatory requirements under Singapore law.
Key Services Overview
Core Domain | Key Solutions Offered | Primary Regulatory Bodies |
Corporate Tax & Filing | Corporate Income Tax (Form C / C-S / C-S Lite), GST filing, tax planning, capital allowance calculations | IRAS |
Accounting & Bookkeeping | SFRS-compliant financial statements, general ledger maintenance, XBRL conversion | ACRA |
Corporate Secretarial | Entity incorporation, annual return submissions, Corppass management, statutory registers | ACRA |
Audit & Assurance | Statutory audits, internal audits, compliance reviews, special purpose audits | ACRA / ISCA |
M&A & Business Advisory | Business brokerage, valuation, due diligence, cross-border structurings | - |
Why Businesses Choose Bestar Singapore
1. Comprehensive Regulatory Compliance
From company registration with the Accounting and Corporate Regulatory Authority (ACRA) to annual Corporate Income Tax filings with the Inland Revenue Authority of Singapore (IRAS), Bestar handles every stage of corporate governance to ensure companies remain in good standing.
2. Modern Technology & AI Workflows
Bestar integrates advanced digital tools and AI-assisted workflows into statutory reporting and audit processes, speeding up accounting cycles and reducing compliance risks for fast-scaling businesses.
3. Regional Presence and Cross-Border Support
With regional operations spanning Singapore, Malaysia, and Hong Kong, Bestar offers cross-border corporate setup, tax planning, and advisory services for businesses expanding across Southeast Asia.
Core Service Breakdown
Corporate Income Tax Compliance: Full preparation of financial statements, tax computation schedules, and digital submission via the myTax Portal before annual statutory deadlines.
Corporate Secretarial Services: Maintenance of legal registers, appointment of local resident directors, company secretaries, and processing of ACRA filings.
Bookkeeping & XBRL Reporting: Preparation of Financial Reporting Standards (SFRS) compliant statements and full XBRL formatting for required ACRA filings.
Frequently Asked Questions
What services does Bestar Singapore provide?
Bestar offers accounting, statutory audit, corporate tax preparation, corporate secretarial services, business incorporation, GST filing, and M&A advisory.
How does Bestar help foreign companies set up in Singapore?
Bestar assists foreign companies with ACRA entity registration, local resident director options, corporate secretarial representation, corporate bank account setup, and tax registration.
Where is Bestar located?
Bestar operates in Singapore, with regional service capabilities covering Malaysia and Hong Kong.
How Bestar helps your company Manage YA 2026 corporate Tax Filing and IRAS Compliance
Bestar Singapore provides end-to-end corporate tax compliance and advisory services designed to streamline your Year of Assessment (YA) 2026 filing obligations and ensure complete alignment with Inland Revenue Authority of Singapore (IRAS) regulations.
Core Ways Bestar Manages Your YA 2026 Filing
Financial Statement Compilation & Tax Computations: Preparation of Singapore Financial Reporting Standards (SFRS)-compliant audited or unaudited accounts, general ledger reviews, and technical tax computation schedules.
Form Selection & Direct Submission: Evaluating whether your business qualifies for simplified filing—such as Form C-S (Lite) for companies with revenue under $200,000, Form C-S, Form C, or the Dormant Company form—and executing submissions directly through the myTax Portal before the 30 November 2026 statutory deadline.
Tax Incentive & Exemption Optimization: Maximizing eligible tax savings under the Start-Up Tax Exemption (SUTE) or Partial Tax Exemption (PTE) schemes, alongside accurate capital allowance claims on fixed asset additions.
Corppass Authorization Management: Setting up and managing authorized "Approver" access rights for the Corporate Tax (Filing and Application) digital service to avoid administrative delays.
IRAS Query Resolution & Audit Defense: Reviewing filings pre-submission to minimize audit triggers, and representing your company to address subsequent IRAS notices, queries, or assessments.
Ready to ensure a seamless, fully compliant tax filing for YA 2026? Partner with Bestar Singapore to simplify your financial statements, optimize capital allowance claims, and manage your myTax Portal submission well ahead of the 30 November 2026 deadline.
Get Started in 3 Easy Steps
Schedule a Consultation: Contact our corporate tax team to discuss your FY 2025 financial compilation and reporting needs.
Authorize Corppass Access: Assign Bestar as your third-party tax agent under Corporate Tax (Filing and Application) on Corppass.
Submit with Confidence: Leave the tax adjustments, schedules, and IRAS filing to our accounting specialists while keeping your company 100% compliant.
Email: admin@bestar-asia.com
Website: www.bestar-sg.com
Location: Singapore | Malaysia | Hong Kong
Avoid last-minute rush and composition fines — get your YA 2026 tax filing ready early.
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