🇸🇬Live in Singapore

Your AI accountant for Singapore.

Finn knows Inland Revenue Authority of Singapore (IRAS), Accounting and Corporate Regulatory Authority (ACRA) and the SGD (S$) — and runs your books, files your taxes, and handles the admin nobody owns. A finance hire for founders in Singapore.

Yes — AccountsOS is live in Singapore. Finn knows Inland Revenue Authority of Singapore (IRAS), Accounting and Corporate Regulatory Authority (ACRA) and SGD (S$), and supports Private Limited Company (Pte Ltd), Sole Proprietorship, Partnership entities out of the box — with tax figures always cited to an official source.

Built for Singapore from day one

Tax Authority
Inland Revenue Authority of Singapore (IRAS)
Registry
Accounting and Corporate Regulatory Authority (ACRA)
Currency
SGD (S$)
Tax Year
Year of Assessment (preceding-year basis): income earned in the financial year is assessed in the following YA
Entity types supported: Private Limited Company (Pte Ltd), Sole Proprietorship, Partnership, Limited Liability Partnership (LLP), Limited Partnership (LP), Branch of Foreign Company. Tax IDs: UEN (Unique Entity Number), GST Registration Number, NRIC / FIN.

Can I claim it? Singapore expenses

All expenses

Home Office Expenses

Partial

Partially deductible. There is no flat-rate home office deduction in Singapore. A company can reimburse directors or employees for actual, documented home office costs at arm's length, and those reimbursements are deductible as business expenses.

Staff Salaries and CPF

Yes

Fully deductible. Salaries, wages, bonuses, and employer CPF contributions (17%, capped at S$1,258/month on ordinary wages) are all deductible as business expenses. The Skills Development Levy (SDL) is also deductible.

Professional Fees (Audit, Accounting, Legal)

Yes

Fully deductible where incurred for revenue purposes. Accountancy fees, audit fees, company secretarial fees, and legal fees for ongoing trading operations are all deductible. Legal fees relating to capital transactions (acquisitions, share issues) are not.

Travel and Transport Expenses

Partial

Business travel is fully deductible. Personal travel embedded in a business trip is not deductible. There is no standard per-km mileage rate in Singapore; actual cost or car rental costs are used.

Motor Vehicle Expenses

Partial

Running costs (fuel, maintenance, road tax, insurance) for S-plate business vehicles are deductible. Capital allowances are not available for Singapore-registered private cars. The COE (Certificate of Entitlement) cost is capital and not deductible.

Entertainment and Business Meals

Yes

50% deductible for qualifying entertainment expenses under section 14(2A). Staff entertainment (e.g., annual dinner and dance) is fully deductible. Receipts and a log of who was entertained and the business purpose are essential.

Singapore tax deadlines

All deadlines

Estimated Chargeable Income (ECI) Filing

Within 3 months of the company's financial year-end. Example: FYE 31 December 2024 = ECI due 31 March 2025. FYE 31 March 2025 = ECI due 30 June 2025.

Companies must file an Estimated Chargeable Income with IRAS within 3 months of their financial year-end. The ECI is a preliminary estimate of the company's taxable income for the financial year. A waiver applies automatically if annual revenue is S$5 million or less AND ECI is zero.

Annual Corporate Tax Return (Form C / C-S / C-S Lite)

30 November of the Year of Assessment (YA). The YA follows the financial year-end: a company with FYE 31 December 2024 has YA 2025 and files its return by 30 November 2025.

The annual corporate income tax return must be filed with IRAS by 30 November of each Year of Assessment. The form type depends on company size and complexity: Form C-S Lite for revenue up to S$200k, C-S for revenue up to S$5m, and Form C for larger or more complex companies.

ACRA Annual Return

Within 7 months of the company's financial year-end. Example: FYE 31 December 2024 = Annual Return due 31 July 2025. FYE 31 March 2025 = Annual Return due 31 October 2025.

All Singapore companies must file an Annual Return with ACRA within 7 months of their financial year-end. The Annual Return confirms the company's registered details (directors, shareholders, share capital, registered address) as of the FYE and must be filed even if there have been no changes.

GST F5 Quarterly Return

Within 1 month of the end of each quarter. Standard quarters and due dates: Q1 (Jan-Mar) due 30 April; Q2 (Apr-Jun) due 31 July; Q3 (Jul-Sep) due 31 October; Q4 (Oct-Dec) due 31 January. IRAS may assign different prescribed accounting periods for some businesses.

GST-registered businesses must file a GST F5 return each calendar quarter, reporting output tax collected and input tax paid. Net GST is payable or reclaimable. The return is due within 1 month of the end of each prescribed accounting period.

Why founders in Singapore pick AccountsOS

Finn cites Inland Revenue Authority of Singapore (IRAS) and Accounting and Corporate Regulatory Authority (ACRA) sources — never UK rules by mistake.
SGD (S$) and DD/MM/YYYY dates everywhere — no manual conversion.
Local entity types (Private Limited Company (Pte Ltd), Sole Proprietorship, Partnership…) supported out of the box.
One login for cross-border founders running multiple entities across countries.
Free for 14 days. Cancel any time.

Singapore FAQ

Does AccountsOS support businesses in Singapore?

Yes. AccountsOS is fully live in Singapore, with Finn aware of Inland Revenue Authority of Singapore (IRAS), Accounting and Corporate Regulatory Authority (ACRA), SGD (S$) and local entity types (Private Limited Company (Pte Ltd), Sole Proprietorship, Partnership).

What entity types does AccountsOS support in Singapore?

Private Limited Company (Pte Ltd), Sole Proprietorship, Partnership, Limited Liability Partnership (LLP), Limited Partnership (LP), Branch of Foreign Company. Each has its own tax treatment, filing requirements and default settings configured out of the box.

Can Finn file taxes directly with Inland Revenue Authority of Singapore (IRAS)?

Finn always cites Inland Revenue Authority of Singapore (IRAS) sources when it quotes a rate, threshold or deadline, and prepares the figures you need. Direct e-filing integration varies by country — ask Finn in-app for the current filing capability for your entity type.

What currency and date format does AccountsOS use for Singapore?

SGD (S$) throughout, with dates shown as DD/MM/YYYY. No manual conversion needed.

Can I run a Singapore company alongside businesses in other countries?

Yes. One login covers multiple companies across any of AccountsOS's supported countries — switch between them with a click, and Finn loads the correct tax rules, currency and entity settings automatically for each.

Is my country not listed, or do I need a bespoke setup for a large client book?

We build custom country rollouts and tailored practice migrations quickly — see accounts-os.com/custom-rollout.

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