ProSec supports Singapore SMEs, active companies and dormant companies with annual accounting, corporate tax filing and practical IRAS compliance guidance.
Annual accounting and corporate tax compliance support for Singapore SMEs, active companies and dormant companies that want clear filing guidance.

| Service | Price | Typical scope |
|---|---|---|
| Accounting & Tax — Annual Compliance | S$1,988/year | Annual accounting compliance, unaudited financial statements and corporate tax filing support for suitable SME profiles. |
Final fee depends on transaction volume, record quality, GST status, payroll, intercompany transactions and tax complexity.
Review and organise accounting records for annual financial statements and filing needs.
Support for Singapore corporate tax filing, including Form C-S, Form C-S Lite or Form C where applicable.
Practical understanding of foreign shareholders, overseas transactions and cross-border tax planning concerns.
This page is the primary page for accounting services and tax filing services Singapore searches. The focus is bookkeeping, financial statements, ECI, Form C-S/Form C, GST review and year-end records.
These examples focus on IRAS compliance and financial record readiness, not ACRA secretarial filing.
A new company may have only a few transactions but still needs to understand ECI, Form C-S or Form C filing. The key is to keep records from the start, rather than waiting until the tax deadline.
Many small companies start by paying expenses informally. Before filing tax, bank transactions, invoices, reimbursements and director or shareholder payments should be classified clearly.
If a Singapore company invoices overseas clients, it should keep service agreements, delivery evidence, invoices and payment records. This helps support both accounting treatment and tax filing positions.
Useful tax advice depends on bank statements, invoices, contracts, payroll records and explanations for unusual transactions.
Basic compliance filing is not the same as detailed tax planning. If your structure involves multiple countries, related-party charges or unusual income flows, we should scope the advisory work separately.
Accounting and tax compliance should be planned throughout the year, not only when a filing deadline arrives. A Singapore company should maintain proper accounting records, supporting invoices, bank statements, expense documents, payroll records where applicable and explanations for major transactions. Clean records make it easier to prepare financial statements, compute taxes, respond to IRAS questions and support future banking or audit needs.
A practical IRAS tax calendar starts with the company’s financial year end. Estimated Chargeable Income, commonly known as ECI, is generally filed within three months after the financial year end unless the company qualifies for an administrative waiver. Corporate income tax returns, such as Form C-S, Form C-S Lite or Form C, are generally filed annually according to IRAS filing timelines. The correct form depends on the company’s size, income, tax position and eligibility conditions.
Some companies may also need XBRL filing. XBRL is a structured digital reporting format used for financial statements filed with ACRA. Whether full XBRL, simplified XBRL or no XBRL is required depends on the company type, financial statement position and applicable ACRA filing rules. Dormant companies should not assume there is nothing to do. They may still need to maintain basic records, consider IRAS filing requirements, apply for waiver where applicable and file annual returns with ACRA.
Audit exemption should also be reviewed carefully. A company may qualify as a small company if it meets the relevant criteria relating to revenue, assets and employee numbers, but the position should be checked based on the latest financial information and group structure. ProSec helps SMEs organise their accounting records, prepare annual compliance documents and understand what must be filed with ACRA and IRAS.
Accounting and tax compliance is not only about filing a form at year end. For a Singapore company, good records help directors understand profit, cash flow, tax exposure, dividend readiness, GST risk, audit exemption position and whether the company’s public filings are consistent with its commercial reality.
Tax filing becomes difficult when bank statements, invoices, receipts, payroll records and shareholder transactions are incomplete. Before preparing Form C-S, Form C-S (Lite) or Form C, the company should review whether the accounting records explain income, expenses, loans, director payments and cross-border receipts clearly.
Companies should understand the relationship between financial year end, estimated chargeable income and the annual corporate income tax return. A company may qualify for an ECI filing waiver, but that does not automatically remove the obligation to file the annual corporate income tax return where required.
GST is not only a year-end issue. Companies should monitor taxable turnover, especially when revenue is growing, recurring contracts are signed or cross-border service income changes. Where taxable turnover exceeds the compulsory registration threshold, registration timing and charging GST should be planned carefully.
A dormant or low-activity company may still have ACRA and IRAS obligations. The right approach depends on whether the company has income, expenses, assets, liabilities, bank activity, waiver status and whether it remains live on the register.
Current IRAS guidance requires companies to file Form C-S, Form C-S (Lite) or Form C by 30 November each year, unless a specific position applies. The form type depends on the company’s profile, revenue and eligibility conditions. For example, Form C-S (Lite) is intended for smaller qualifying companies, while Form C may require supporting financial statements, detailed profit and loss statement, tax computation and other documents.
For SMEs, one common risk is treating annual accounting as a once-a-year cleanup. This often creates pressure when tax deadlines, bank reviews or shareholder questions arise. A better approach is to maintain a monthly or quarterly document trail, including invoices, contracts, receipts, payment proofs, staff costs, director remuneration and explanations for unusual transactions.
Accounting also interacts with corporate secretarial compliance. ACRA Annual Return filing may require financial statement readiness, and directors should understand whether the company is dormant, solvent, audit-exempt or required to file financial statements in XBRL. Where the company is foreign-owned or has overseas income, additional explanation may be needed for banks, auditors, tax agents and shareholders.
Related guidance: Read the annual return deadline guide View corporate secretary support
Yes. A company should keep proper accounting records and supporting documents. Even a small or dormant company should be able to explain its financial position, transactions and filing basis when required.
A dormant or inactive company may still have filing obligations unless it qualifies for the relevant waiver or dormant company filing treatment. The position should be checked based on the company’s actual activity and IRAS requirements.
Bookkeeping records transactions. Financial statements summarise the company’s financial position and performance. Tax filing reports taxable income and tax adjustments to IRAS. A company often needs all three to be consistent.
Provide bank statements, sales invoices, purchase invoices, expense receipts, payroll records, loan or director current account details, GST records if applicable, and any prior year financial statements or tax filings.
It depends on transaction volume. Active companies should update records regularly instead of waiting until the tax deadline. This reduces missing documents, late filing pressure and inconsistent annual return information.
Estimated Chargeable Income is a preliminary tax filing based on the company’s estimated taxable income. Some companies may qualify for ECI filing waiver, but that does not automatically remove the need to file the annual corporate income tax return.
They are different types of corporate income tax return. Which form applies depends on revenue, company profile and eligibility conditions. Even companies with no income or losses may still need to file the relevant return.
GST support may be provided as an add-on depending on whether the company is GST-registered, transaction volume, export sales, input tax claims and record quality. GST should be reviewed before filing to reduce error risk.
Yes. We can review available records and advise whether cleanup, reconstruction or prior-year correction is needed. The fee depends on transaction volume, missing documents, bank accounts and complexity.
Yes, and this is often more efficient. Annual return filing, financial statements and corporate tax filing rely on related information, so coordinating secretary and accounting work can reduce inconsistencies.
Main factors include transaction volume, number of bank accounts, GST status, payroll, intercompany transactions, overseas income, missing records, urgency and whether prior years need cleanup.
Send us your UEN, financial year end and whether your company is active or dormant. We will advise the next step.