Corporate Tax Calculator Singapore: YA2026 Tax After SUTE, PTE and the CIT Rebate

This corporate tax calculator for Singapore companies estimates the tax payable for YA2025, YA2026 or YA2027. Enter your chargeable income and it applies the partial or start-up tax exemption, the flat 17% rate and, for YA2025 and YA2026, the 50% CIT Rebate capped at $40,000. Every line of the computation is shown, so you can see exactly how the figure is reached.

Use it to check a figure before you file. Amounts are in Singapore dollars, based on IRAS rules as at November 2026, and YA2026 returns are due by 30 November 2026.

Key takeaways

• Flat 17% on chargeable income left after exemptions, for local and foreign companies alike.
• Exemptions: the partial tax exemption (PTE) exempts up to $102,500 a year; the start-up tax exemption (SUTE) exempts up to $125,000, in a qualifying company's first three YAs only.
• YA2026 CIT Rebate: 50% of tax payable, with total benefits capped at $40,000. Companies that received the $2,000 cash grant get the rebate minus $2,000.
• YA2027: no CIT Rebate announced as at 9 November 2026.
• Don't deduct the exemption or rebate from the chargeable income you declare: IRAS computes both.

Table of Contents

1. Corporate Tax Calculator for Singapore Companies
2. How Do I Calculate Corporate Tax in Singapore?
3. Partial Tax Exemption and SUTE Rates Used by the Calculator
4. CIT Rebate for YA2026 and Other Years
5. What Is the Effective Corporate Tax Rate for SMEs?
6. Worked Examples That Match the Calculator
7. Chargeable Income vs Accounting Profit
8. Common Mistakes and What the Calculator Leaves Out
9. When Should You Get Professional Help?
10. Frequently Asked Questions
11. Official Sources

Corporate Tax Calculator for Singapore Companies

Use chargeable income, not accounting profit; the estimate panel helps if you only have accounts.

Tax payable on Notice of Assessment (NOA) is what IRAS will bill. If you received the $2,000 cash grant, net tax cost counts it too and is the fairer figure for comparing years.

How Do I Calculate Corporate Tax in Singapore?

The formula is tax payable = 17% × (chargeable income − exempt amount) − CIT Rebate. Step by step:

1. Find the basis period. YA2026 taxes the financial year ending in 2025, such as 1 April 2024 to 31 March 2025.
2. Work out chargeable income from net profit before tax, using the adjustments in chargeable income vs accounting profit.
3. Deduct the exemption: PTE, or SUTE in a qualifying company's first three YAs. SUTE must be claimed by answering 'Yes' in the return.
4. Apply 17% to what is left.
5. Deduct the CIT Rebate for that YA, less any cash grant already received.
6. File and check. File Estimated Chargeable Income (ECI) within 3 months of the year end (not needed if revenue is $5 million or below and ECI is nil), then the return by 30 November. Object within 2 months if the Notice of Assessment is wrong.

Not sure whether you file Form C-S, Form C-S (Lite) or Form C? Try our corporate tax form checker, and see our corporate tax filing guide for the return itself.

Partial Tax Exemption and SUTE Rates Used by the Calculator

Both schemes sit in section 43 of the Income Tax Act 1947 and apply only to normal chargeable income, meaning income taxed at 17%. These figures have applied since YA2020:

In effect, income in a 75% band is taxed at 4.25%, income in a 50% band at 8.5%, and income above $200,000 at the full 17%. SUTE's advantage over PTE comes only from income between $10,000 and $100,000 (75% exempt instead of 50%), so it saves at most $3,825 a year before rebates.

SUTE is for companies incorporated and tax resident in Singapore with no more than 20 shareholders throughout the basis period, all individuals or including one individual holding at least 10%. Investment holding and property development companies incorporated after 25 February 2013 are excluded, and loss-making or pre-trading YAs still count. Our start-up tax exemption guide covers each condition.

CIT Rebate for YA2026 and Other Years

The grant condition is CPF contributions for at least one local employee (a Singapore Citizen or PR), excluding shareholders who are also directors. For YA2025 and YA2026 the company must also be active when the grant is paid, and the calculator applies IRAS's rule:

• No grant: the rebate is 50% of tax payable, capped at $40,000.
• Grant received: the rebate on the NOA is that figure minus $2,000, or nil if half the tax is $2,000 or less.

A grant recipient is never worse off, but its NOA shows no rebate at all up to about $52,000 of chargeable income under PTE, or $94,000 under SUTE. The cap bites when tax before rebate reaches $80,000, at roughly $573,000 of chargeable income under PTE.

Three more YA2026 points:

• Budget 2026's original 40% rebate, $1,500 grant and $30,000 cap were raised on 7 April 2026, and IRAS applied the increase automatically.
• The grant is not taxable and was paid even where chargeable income was nil. It shows only in the final NOA, not in the estimated tax on the ECI or Form C-S acknowledgement page. A company that qualified but was not paid by Q2 2026 can appeal through myTax Mail by 30 November 2026 (subject: 'Appeal for CIT Rebate Cash Grant').
• The separate SME Cash Grant 2026 ($500 per local qualifying employee, up to $2,500, paid from 2 November 2026) is taxable.

Our Budget 2026 guide for SMEs covers the other measures.

What Is the Effective Corporate Tax Rate for SMEs?

The effective tax rate of a Singapore company is its tax divided by its chargeable income. Before any cash grant:

YA2025 matches the YA2026 columns. Up to $200,000, the effective rate stays below 8.5%, and the YA2026 rebate halves it again until the cap. For owner-managers, corporate tax is only part of the total: see director salary vs dividends.

Worked Examples That Match the Calculator

These hypothetical companies were run through the calculator; enter the same inputs to check each line.

• Company A shares its $297,500 after exemption with IRAS's own rebate example, which reaches $27,200 only because it also has a $175 tax set-off.
• Company B employs only its shareholder-directors, who do not count for the grant. Under PTE it would pay $3,187.50.
• Company C matches IRAS's example where half the tax ($1,487.50) is below the grant, so the NOA shows no rebate.
• Company D pays in full because no YA2027 rebate has been announced; the same profit cost $12,537.50 in YA2026 without a grant.

Chargeable Income vs Accounting Profit

IRAS describes chargeable income as the company's taxable income for the YA. A tax computation gets there from net profit before tax broadly in this order:

1. Deduct non-taxable income, such as one-tier Singapore dividends and the CIT Rebate Cash Grant.
2. Add back non-deductible expenses such as depreciation, donations, fines, private expenses and S-plate car costs (see our deductible expenses guide for SMEs).
3. Deduct capital allowances (current and brought forward) and any section 14N renovation deduction.
4. Deduct unused trade losses brought forward.
5. Deduct donations to approved Institutions of a Public Character (IPCs) at 2.5 times the amount.

Losses and Capital Allowances

Capital allowances replace accounting depreciation, which is not deductible: commonly one-third of cost a year over 3 years, 100% at once for computers and prescribed automation equipment, and 100% for assets costing up to $5,000 each (capped at $30,000 a YA). S-plated and Q-plated cars generally get none.

Unused losses and allowances carry forward only if the shareholding test is met (broadly, at least 50% of shares held by the same shareholders on the relevant dates) and, for allowances, the company has not changed its principal activities. Up to $100,000 of current-year losses and allowances can be carried back one YA, in Form C only. IRAS notes that companies generally defer capital allowances (other than the section 19 initial allowance, which cannot be deferred) when loss-making or on SUTE: a dollar of allowance saves 4.25 cents in a SUTE 75% band but 8.5 or 17 cents later.

Groups of Companies

Each company is taxed separately, with its own exemption and its own $40,000 rebate cap. Group relief, claimed in Form C, lets Singapore-incorporated companies with the same year end transfer current-year unused capital allowances, trade losses and donations where one holds at least 75% of the other's ordinary shares, directly or indirectly, or a third Singapore-incorporated company holds at least 75% of each. A company wholly owned by another company cannot claim SUTE.

Common Mistakes and What the Calculator Leaves Out

• Entering accounting profit instead of chargeable income.
• Deducting the exemption or rebate yourself. IRAS computes both.
• Claiming SUTE in a fourth YA, or forgetting that a dormant first YA used up one of the three.
• Counting shareholder-directors as local employees for the cash grant.
• Reading a smaller NOA rebate as an IRAS error when the cash grant explains it.
• Skipping the return because no tax is due. Loss-making companies must still file by 30 November.

The calculator does not model concessionary-rate income, income under final withholding tax, tax set-offs such as foreign tax credit (which reduce tax before the rebate is worked out), group relief or loss carry-back.

When Should You Get Professional Help?

You may not need it. A trading company with simple accounts, no losses and no group can prepare its own computation, helped by IRAS's free Basic Corporate Income Tax Calculator, an Excel workbook covering YA2022 to YA2026.

Get the computation prepared or reviewed if the company has losses or allowances to plan, belongs to a group, holds investments or property, has first accounts longer than 12 months, has an estimated NOA, or must file Form C. See our tax services; we quote once we have seen your accounts.

Frequently Asked Questions

Is there a CIT rebate for YA2026?

Yes. The YA2026 Corporate Income Tax Rebate is 50% of tax payable, with total benefits capped at $40,000 per company. Active companies that paid CPF in 2025 for at least one local employee, other than shareholder-directors, received $2,000 of it early as a cash grant. IRAS applies the rebate automatically, so do not deduct it when you file.

Will there be a corporate tax rebate for YA2027?

None has been announced as at 9 November 2026. IRAS lists CIT Rebates only up to YA2026, and the support package announced on 29 July 2026 did not include one. Until that changes, budget for the full tax after exemptions, as the calculator does for YA2027.

How does the start-up tax exemption reduce tax?

SUTE exempts 75% of the first $100,000 of chargeable income and 50% of the next $100,000, up to $125,000 a year, in a qualifying company's first three YAs. On $100,000 of chargeable income, it cuts tax before rebates from $8,075 under the partial exemption to $4,250. The most it can save over the partial exemption is $3,825 a year.

What is chargeable income?

Chargeable income is the company's taxable income for a Year of Assessment. It is net profit before tax, less non-taxable income, plus non-deductible expenses such as depreciation and fines, less capital allowances, unused losses brought forward and approved donations at 250%. The tax exemptions and the 17% rate are applied to this figure.

Why does my Notice of Assessment show a smaller rebate than 50%?

Usually because the company received the $2,000 CIT Rebate Cash Grant. IRAS deducts the grant from the computed rebate, so the Notice of Assessment shows 50% of the tax minus $2,000, or no rebate if half the tax is $2,000 or less. Larger companies are also limited by the $40,000 cap.

Official Sources

• IRAS: Corporate Income Tax Rate, Rebates and Tax Exemption Schemes
• IRAS: Corporate Income Tax Rates by YA
• IRAS: Preparing a Tax Computation
• IRAS: Estimated Chargeable Income (ECI) filing
• IRAS: Capital Allowances
• IRAS: Group Relief
• MOF: Ministerial Statement of 7 April 2026 (YA2026 rebate enhancement)
• IRAS: SME Cash Grant 2026

About Tax Filing SG — We are a Singapore accounting practice run by ex-Big 4 Singapore Chartered Accountants (ISCA). We handle accounting, corporate tax, GST and company secretarial work for Singapore SMEs, including overdue and late filings.

Last updated: 9 November 2026. This article is general information based on IRAS and ACRA guidance as at November 2026, not advice for your specific situation. Rules, rates and deadlines change, so check the official sources above or speak to us before acting.