What is Singapore's corporate income tax rate?

Singapore taxes companies at a flat 17% on their chargeable income. There is no graduated rate — 17% applies from the first dollar of income above the exemption bands.

Who qualifies for the startup tax exemption?

A company qualifies for the startup exemption if it is (1) incorporated in Singapore, (2) a tax resident for that Year of Assessment, and (3) has no more than 20 shareholders who are all individuals or at least one individual holding 10% or more of issued shares. The exemption applies for the first three consecutive Years of Assessment.

What is the partial tax exemption (PTE)?

All companies that do not qualify for the startup exemption (or have exhausted their first 3 YAs) receive the standard partial tax exemption: 75% of the first S$10,000 and 50% of the next S$190,000 of chargeable income are exempt from tax. This reduces effective tax rates significantly for smaller profits.

What is "chargeable income"?

Chargeable income is your company's taxable income after deducting allowable expenses, capital allowances, losses brought forward, and any other IRAS-approved deductions from gross income. It is NOT the same as accounting profit.

Does this calculator include the corporate income tax rebate?

IRAS occasionally grants a one-year corporate income tax rebate (e.g., a percentage rebate capped at a fixed amount). These are ad-hoc annual measures and are NOT included here. Check the IRAS website for any rebate in force for the current Year of Assessment.

Can investment holding companies use the startup exemption?

No. Investment holding companies and companies whose principal activity is property or equity investment are excluded from the startup tax exemption scheme. They may still use the standard partial tax exemption.

Singapore Corporate Tax Calculator

Name: Singapore Corporate Tax Calculator
Availability: InStock
Author: Nham Vu

Enter your chargeable income and company type to instantly calculate your Singapore corporate income tax under the 17% flat rate with applicable partial exemptions.

Company Details

Chargeable Income (SGD)

Company Type

New Startup First 3 Years of Assessment — 75% exempt on first S$100k, 50% on next S$100k Existing Company (Standard PTE) 75% exempt on first S$10k, 50% on next S$190k

Headline corporate tax rate 17%

Tax Breakdown

Enter your income and click Calculate.

Tax Payable

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Effective Rate

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After-Tax Profit

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Income Band	Exempt	Taxable	Tax

Summary

Enter your chargeable income and company type to instantly calculate your Singapore corporate income tax under the 17% flat rate with applicable partial exemptions.

How it works

Enter your company's chargeable income for the Year of Assessment.
Select whether your company qualifies as a new startup (first 3 YAs) or an existing company.
The calculator applies the startup exemption or standard partial tax exemption tier automatically.
Tax payable, after-tax profit, and effective rate are shown instantly.
Review the breakdown panel to see how each exemption tier is applied.

Use cases

Estimate IRAS corporate income tax before filing.
Compare the tax benefit of startup exemption versus standard partial exemption.
Plan retained earnings and profit distributions for your Singapore company.
Model tax liability at different chargeable income levels.
Prepare financial projections for investors or directors.
Verify estimated chargeable income notifications from IRAS.

Frequently Asked Questions

Last updated: 2026-07-01 · Reviewed by Nham Vu