Corporate tax exemptions and partial-exemption scheme: Common mistakes and rejection reasons

Corporate tax exemptions and partial-exemption scheme refer, respectively, to the Start-up Tax Exemption and Partial Tax Exemption reliefs that reduce a Singapore company’s chargeable income before tax is calculated, and to the separate GST partial exemption regime that limits input tax recovery for businesses making exempt supplies.

What the corporate tax exemptions and partial-exemption scheme actually are

Singapore operates two income tax exemption tiers for companies. The Start-up Tax Exemption (SUTE) scheme gives a new company exemption on a portion of its first S$200,000 of normal chargeable income for each of its first three consecutive years of assessment, subject to conditions on shareholding and residency. The Partial Tax Exemption (PTE) scheme applies to all companies, including those that have used up their SUTE years, and exempts a portion of the first S$200,000 of chargeable income on an ongoing basis. Both schemes operate against the backdrop of Section 43(1) of the Income Tax Act 1947, which sets out the rate of tax chargeable on a company’s chargeable income, with the exemption schemes reducing the base to which that rate is applied.

Separately, and often confused with these income tax reliefs, the GST partial exemption regime governs how much input tax a business can recover when it makes a mix of taxable and exempt supplies. A company that leases residential property, holds investments, or operates a fund structure typically cannot recover all of its input tax, and must apply a partial exemption formula, sometimes anchored to an approved Assisted Compliance Assurance Programme (ACAP) status, to determine its recoverable proportion. This article covers both angles because clients frequently ask about “tax exemptions” when they mean the income tax start-up and partial reliefs, and about “partial exemption” when they mean the GST input tax recovery restriction, and the common mistakes differ for each.

Who these schemes are for

SUTE is for genuinely new Singapore tax resident companies, limited to 20 individual shareholders (or, in a simplified structure, at least one individual holding at least 10% of shares), and excludes property development and investment holding companies from the SUTE benefit though these companies can still claim PTE. PTE is for every Singapore company regardless of age, once its SUTE years are exhausted or it never qualified for SUTE. The GST partial exemption scheme is relevant to any GST-registered business that makes both taxable and exempt supplies, most commonly financial institutions, holding companies, real estate investment structures, and fund managers.

Eligibility and requirements

To qualify for SUTE, a company must be incorporated in Singapore, be a tax resident in Singapore for that year of assessment, and have no more than 20 shareholders throughout the basis period, all of whom are individuals holding shares directly, or at least one individual shareholder holding at least 10% of ordinary shares if the 20-shareholder limit is exceeded by corporate shareholders. Investment holding and property development companies are excluded from SUTE benefits under the qualifying conditions but remain eligible for PTE. PTE has no shareholding or incorporation-age restriction and applies automatically once SUTE years lapse or were never available.

For GST partial exemption, eligibility to use a special input tax recovery formula, rather than the standard formula, generally requires prior IRAS approval, and businesses under ACAP typically enjoy a reduced GST assurance review burden as recognition of a robust GST control framework, which in turn affects the confidence IRAS places in the partial exemption calculation submitted.

Cost and timeline

These reliefs carry no separate application fee, since SUTE and PTE are claimed through the annual Corporate Income Tax return rather than a standalone application, but the numbers matter greatly to cash flow planning:

  • SUTE: 75% exemption on the first S$100,000 of normal chargeable income and 50% exemption on the next S$100,000, for each of the first three YAs, for qualifying companies.
  • PTE: 75% exemption on the first S$10,000 of normal chargeable income and 50% exemption on the next S$190,000, available every year without a time limit.
  • The Corporate Income Tax (CIT) rebate for YA2026 sits on top of these exemptions and is a separate enhancement; see the related guide below for the current cash grant and cap figures.
  • GST partial exemption calculations are done on an annual basis, typically finalised within 1 to 2 months after financial year end, alongside the annual GST adjustment return.
  • ACAP renewal cycles typically run every 5 years, with a renewal assessment taking 6 to 12 weeks depending on the complexity of the business’s GST controls.

Step-by-step process

First, determine SUTE eligibility at incorporation by confirming Singapore tax residency intention and shareholding structure; this should be checked in year one, not left until the Form C-S/C filing deadline, since restructuring shares after the fact does not retroactively fix a failed test. Second, compute chargeable income before exemption for the year, then apply the relevant exemption tier, SUTE for years one to three if qualifying, PTE thereafter. Third, claim the exemption directly within the tax computation submitted with Form C-S or Form C; IRAS does not require a separate exemption application. Fourth, for GST partial exemption, calculate the recovery rate using either the standard formula (based on the ratio of taxable to total supplies) or, where approved, a special method more reflective of actual business use, and apply that rate to input tax incurred on costs that cannot be directly attributed to either taxable or exempt supplies. Fifth, where ACAP status exists or is being renewed, ensure the partial exemption workings are consistent with the control documentation submitted for the ACAP review, since inconsistencies between the two are a common trigger for IRAS follow-up queries.

Common mistakes and rejection reasons

The most frequent SUTE error is assuming a shelf company or a company that changed its principal activity still qualifies as “new” for SUTE purposes; SUTE eligibility is tied to the company’s incorporation and the specific YA count, not to a change in business, so a company already past its first three YAs cannot restart the SUTE clock by changing its trade. A second common mistake is missing the property development and investment holding company exclusion, leading companies in these sectors to wrongly claim SUTE instead of the still-available PTE, which then needs to be corrected via an amended tax computation, sometimes attracting IRAS query letters.

On PTE, the most common error is applying the exemption tiers to the wrong income base, forgetting that PTE and SUTE apply to “normal chargeable income” and exclude income already taxed at a concessionary or final rate, such as income covered by specific incentive schemes. Businesses also sometimes double count the exemption across related entities in a group, not realising that SUTE and PTE are computed per company, not per group, and that group relief under the loss carry-forward and current year rules operates separately from these exemption tiers.

On the GST partial exemption side, the most common rejection or query reason is applying the standard formula without testing whether the de minimis rule would exempt the business from restriction altogether, since businesses under the de minimis threshold may recover input tax in full despite making some exempt supplies. Another frequent issue is failing to update the partial exemption calculation after a change in business activity, for example when a holding company starts actively trading, which shifts the taxable-to-exempt supply ratio materially and can render a prior year’s ACAP-approved method outdated. Businesses also often overlook that unutilised capital allowances and losses carried forward remain subject to the shareholding continuity tests in the Income Tax Act, meaning a change in ownership can restrict the very losses a partially exempt or newly profitable company is relying on; the general carry-forward and continuity framework is addressed in Section 37 of the Income Tax Act 1947, which governs the deduction of losses and allowances against income of a later year subject to conditions being met.

A further mistake worth flagging is confusing the corporate income tax exemption schemes with GST exemption entirely, which happens more often than one might expect because both are labelled “exemption” in casual conversation. SUTE and PTE reduce the base of chargeable income subject to corporate tax; they have no bearing whatsoever on whether a supply is GST-exempt, and vice versa, a GST-exempt supply such as the sale of a residential property has no effect on the SUTE or PTE calculation for income tax purposes. Finance teams that conflate the two sometimes wrongly assume a company earning mostly GST-exempt income cannot also enjoy PTE, when in fact the two regimes are entirely independent and should be assessed on separate tests.

Groups with multiple related companies also commonly misjudge how PTE and SUTE interact with intercompany transactions. Management fees, cost recharges, and intercompany loans between related companies are each assessed on their own merits for income tax purposes at the level of the individual company receiving them, and the presence of a related-party relationship does not itself change the exemption tier available; what does matter is whether the income qualifies as normal chargeable income of that specific company, and whether that company independently meets the SUTE shareholding test in its own right, since a subsidiary does not inherit its parent’s SUTE eligibility purely by virtue of group membership.

A final area of confusion involves timing. Companies sometimes assume the three SUTE years must be the first three calendar years of operation, when in fact they are the first three consecutive years of assessment for which the company is tax resident and otherwise qualifying, which may not align neatly with calendar years if the company changes its financial year end shortly after incorporation, or if there is a gap year where tax residency itself is in question. Getting the financial year end decision right at incorporation, and keeping it stable in the early years, avoids inadvertently shortening the effective window in which SUTE can be enjoyed, and this is a point worth raising with a corporate secretarial adviser at the point of company formation rather than only at the first tax filing.

FAQs

Can a company claim both SUTE and the CIT rebate in the same year of assessment?
Yes. SUTE and PTE reduce chargeable income before tax is computed, while the CIT rebate is applied afterwards as a rebate on the tax payable, so a qualifying company can benefit from both in the same year.

What happens if a company incorrectly claims SUTE after its first three years?
IRAS will typically disallow the SUTE claim on review and reassess using PTE instead, which may result in additional tax payable plus late payment interest if the original filing understated tax due.

Does GST partial exemption apply if my company makes only a small amount of exempt income, such as bank interest?
Not necessarily. The de minimis rule may allow full input tax recovery if exempt supplies fall below prescribed value and proportion thresholds, so a small amount of incidental exempt income does not automatically trigger restriction.

Do dormant or investment holding companies qualify for either SUTE or PTE?
Investment holding companies are excluded from SUTE but remain eligible for PTE on their chargeable income, subject to normal tax computation rules for such companies.

How does ACAP status affect the partial exemption calculation?
ACAP recognises a business’s GST control framework and can support the use of an approved special input tax recovery method, but the underlying partial exemption calculation still needs to be performed and evidenced each year; ACAP status alone does not exempt a business from the calculation.

Does a company need to apply for PTE separately from its normal tax filing?
No separate application is needed. PTE is applied automatically within the tax computation submitted alongside Form C-S or Form C, and IRAS’s own assessment processes will apply the exemption tier to the chargeable income reported, provided the computation itself is correctly prepared.

Related guides

For a detailed walkthrough of the GST partial exemption calculation and the current ACAP renewal cycle, see our guide on GST ACAP renewal and partial exemption. For how the CIT rebate interacts with the exemption schemes covered here, read our explainer on the Singapore CIT rebate, cash grant and cap. Businesses hiring into regulated or specialised sectors should also review our sector-specific hiring guides, since headcount growth often coincides with the point a company transitions out of SUTE eligibility. For authoritative guidance on tax exemption schemes and GST partial exemption, refer to the Inland Revenue Authority of Singapore at www.iras.gov.sg, and for company incorporation and shareholder records relevant to SUTE eligibility, the Accounting and Corporate Regulatory Authority at www.acra.gov.sg.

Need help with this? Call, SMS or WhatsApp +65 8501 7133, or email [email protected]. Raffles Corporate Services works with a panel of corporate and employment law firms; this article is general information, not legal advice.