1. Accounts and records
Start with the profit and loss statement, balance sheet, general ledger and records that explain material balances and transactions.
SINGAPORE COMPANY TAX, EXPLAINED
What is a tax computation?
A tax computation starts with the profit or loss in a company’s accounts and shows the adjustments needed to work out its chargeable income. Accounting profit and taxable income can differ. The computation supports the company’s corporate income tax return.
Ask us about your year-endWHY THE FIGURES DIFFER
Profit in the accounts is the starting point.
The financial statements report the company’s accounting result. A tax computation explains how that result is adjusted for tax. IRAS lists possible adjustments such as expenses that are not deductible, receipts that are not taxable, further deductions and capital allowances.
The treatment of an item depends on the company’s facts and the applicable rules. The computation may also include supporting schedules for items such as capital allowances or losses brought forward. It is not simply the profit figure copied into a tax form.
THE WORKFLOW
How the pieces fit together.
This is a general sequence, not a calculation for your company.
2. Tax adjustments
Review the accounting result against tax rules, document applicable adjustments and prepare the relevant supporting schedules.
3. Return and approval
Use the reviewed computation to prepare the appropriate corporate income tax return. Stars Bridge confirms scope and seeks your approval before filing.
Have incomplete records? See the documents checklist and tell us what you have. We will confirm any additional work before it starts.
PREPARE VERSUS FILE
Does the computation go to IRAS?
IRAS distinguishes between preparing a tax computation and submitting it with the return. For Form C-S and Form C-S (Lite), companies prepare the computation and supporting schedules and keep them ready if IRAS requests them. For Form C, the computation, financial statements and supporting documents are filed with the return.
Which form a company may use depends on its eligibility and circumstances. This guide does not determine your form, chargeable income, tax payable or filing position. Check IRAS’s filing guidance ↗ for the current requirements.
GET HELP WITH THE FULL YEAR-END WORKFLOW
Financial statements, computation and filing.
Our financial statements and corporate tax package includes preparation of the tax computation and corporate tax filing for companies that fit the package. We review your records and confirm scope, fee and timing before work begins. Filing takes place after your approval.
Start an enquiryOfficial guidance
Last reviewed against these official sources: 29 September 2026. The applicable treatment and filing requirements depend on the company’s facts.