Startup Tax Exemption, PTE and GST Registration Singapore 2026
Three IRAS corporate tools that every Singapore business owner and founder must understand before filing their first tax return. The Startup Tax Exemption Scheme slashes effective tax rates to under 5% on the first S$200,000 of profit for qualifying new companies in their first three Years of Assessment. The Partial Tax Exemption applies to every established company and exempts 75% of the first S$10,000 plus 50% of the next S$190,000 in chargeable income. And the GST Registration Threshold Checker determines whether your company must register for the 9% Goods and Services Tax once revenue exceeds S$1 million — using either the retrospective or prospective test. These three tools cover the full lifecycle of Singapore corporate taxation from Day 1 to sustained growth.
Understanding the Startup Tax Exemption Scheme (SUTE) in Singapore 2026 — How New Companies Get 75% Exemption on the First S$100,000 of Chargeable Income From IRAS for Their First 3 Years
The Startup Tax Exemption Scheme is the most powerful corporate tax incentive available to new Singapore companies. For the first three consecutive Years of Assessment, qualifying companies receive: 75% exemption on the first S$100,000 of chargeable income and 50% exemption on the next S$100,000. On the first S$100,000 of profit, only S$25,000 is taxable at 17%, producing a tax bill of just S$4,250 — an effective rate of 4.25%. On S$200,000 total, the effective rate is approximately 6.4% before the YA2026 40% rebate.
To qualify for SUTE, a company must meet all of the following criteria: it must be incorporated in Singapore, it must be a Singapore tax resident for that Year of Assessment, it must have no more than 20 shareholders throughout the basis period, and all shareholders must be individuals — OR at least one shareholder must be an individual holding at least 10% of the issued ordinary shares. Companies whose principal activity is investment holding or real estate development are excluded from SUTE.
The three-year window runs from the company first Year of Assessment. If a company is incorporated in June 2025 with a December financial year-end, its first YA is 2026, second is 2027, and third is 2028. After year 3, the company automatically transitions to the standard Partial Tax Exemption (PTE). Many founders miss the critical point: the SUTE exemption is on chargeable income (profit after deductions), not revenue. If you earn S$500,000 in revenue but have S$400,000 in deductible expenses, your chargeable income is S$100,000 — fully within the SUTE sweet spot.
The SUTE Calculator takes your company chargeable income and Year of Assessment (1st, 2nd, or 3rd). It computes: the exempted amount, taxable income, tax at 17%, effective tax rate, comparison against PTE, and the combined savings from SUTE plus the YA2026 rebate.
Common Mistakes That Disqualify Companies From SUTE
The most frequent disqualification: having a corporate shareholder. If your Pte Ltd is 60% owned by another company and 40% by an individual, SUTE does not apply because the individual holds less than 10% while a corporate entity is a shareholder. The fix: restructure before the first YA so that at least one individual holds 10% or more. Also, dormant shell companies that have existed for years but only start trading recently do not get a “fresh” SUTE — the three-year clock starts from the first YA, which is usually the year after incorporation, not the year after the company first earns revenue.
Understanding Partial Tax Exemption (PTE) in Singapore 2026 — The Standard Corporate Tax Exemption Available to All Singapore Companies After the SUTE Period Ends
Once a company exhausts its three SUTE years (or if it never qualified for SUTE), it automatically falls under the Partial Tax Exemption — which applies to every Singapore-resident company regardless of size, industry, or shareholding structure. PTE is less generous than SUTE but still significantly reduces the effective tax rate on the first S$200,000 of profits.
The PTE exemption for YA2026 is: 75% on the first S$10,000 of chargeable income (only S$2,500 taxable), and 50% on the next S$190,000 (only S$95,000 taxable). On the first S$200,000 of profit, total taxable income is S$97,500, and tax at 17% is S$16,575 — an effective rate of 8.3%. Income above S$200,000 is fully taxable at the standard 17% rate.
PTE has no eligibility restrictions: it applies to investment holding companies, property developers, multinationals, and every other entity type that SUTE excludes. This universality makes PTE the baseline exemption that every Singapore company receives. Even large listed companies benefit from PTE on their first S$200,000 of profit, although the savings are immaterial relative to their total tax bill.
The PTE Calculator takes your company chargeable income and shows: the PTE exemption breakdown, taxable income after exemption, tax at 17%, effective tax rate, and the additional savings from the YA2026 40% rebate. It also shows the difference if your company had qualified for SUTE instead — useful for founders deciding whether restructuring to regain SUTE eligibility is worthwhile.
Understanding GST Registration in Singapore 2026 — The S$1 Million Revenue Threshold, Retrospective vs Prospective Tests and When Your Business Must Start Charging the 9% Goods and Services Tax
The Goods and Services Tax is a broad-based consumption tax currently set at 9% (raised from 8% on 1 January 2024). Unlike corporate tax which is on profit, GST is charged on the value of goods and services supplied. Businesses must register for GST when their taxable turnover exceeds S$1 million — but the S$1 million test has two different triggers:
Retrospective Test: Your taxable turnover for the past 12 months exceeded S$1 million. This is checked at the end of each calendar quarter (31 March, 30 June, 30 September, 31 December). If the trailing 12-month total crosses S$1 million at any quarter-end, you must register within 30 days.
Prospective Test: You have reasonable grounds to expect your taxable turnover will exceed S$1 million in the next 12 months. This trigger applies even if your past revenue is below S$1 million — for example, if you sign a large contract that will bring revenue above S$1 million in the coming year.
Once registered, you must charge 9% GST on all taxable supplies, file quarterly GST returns (GST F5), and pay the collected GST to IRAS. However, you can also claim back GST paid on your business purchases (input tax credits), effectively making GST a tax on your customers, not on your company. For businesses with high input costs (manufacturing, trading), GST registration can actually be cash-flow positive because the input credits exceed the GST collected from some customers.
Voluntary GST registration is available for businesses below S$1 million. Some businesses register voluntarily to claim input tax credits on large capital expenditures (office fit-outs, equipment purchases, inventory). However, voluntary registration comes with a minimum two-year commitment and quarterly filing obligations.
The GST Registration Threshold Checker takes your monthly revenue for the past 12 months and projected revenue for the next 12 months. It computes: whether the retrospective test is triggered (trailing 12-month turnover above S$1 million), whether the prospective test is triggered, the deadline for registration if triggered, estimated quarterly GST payable (at 9% of taxable supplies), estimated input tax credits, and the net GST cash flow impact.
How These 3 IRAS Business Tax Calculators Work — SUTE Eligibility Verification, PTE Exemption Layering and GST Threshold Monitoring for Singapore Companies
The SUTE Calculator takes chargeable income, Year of Assessment number (1st, 2nd, or 3rd), and shareholding structure. It computes: eligibility check, 75% exemption on first S$100K, 50% exemption on next S$100K, tax at 17%, YA2026 rebate, net tax after rebate, effective rate, and comparison against PTE.
The PTE Calculator takes chargeable income and computes: 75% exemption on first S$10K, 50% exemption on next S$190K, tax at 17% on the taxable balance, rebate, and effective rate. It also shows the savings PTE provides versus the full 17% rate with no exemptions.
The GST Threshold Checker takes 12 months of historical revenue and 12 months of projected revenue. It computes: trailing 12-month total (retrospective test), forward 12-month projection (prospective test), whether either test triggers mandatory registration, registration deadline, estimated quarterly GST payable, and input tax credit estimation.
3 Real Singapore Business Tax Examples — Year-1 Startup, Established SME and GST Registration Trigger for a Growing E-Commerce Business
Example 1: Year-1 Startup With S$180,000 Profit — SUTE Cuts Effective Rate to 3.1%
DataFlow SG Pte Ltd was incorporated in March 2025 (first YA: 2026). It has 2 individual shareholders (60/40 split). Chargeable income: S$180,000. No corporate shareholders.
DataFlow pays just S$6,630 on S$180,000 profit — a 3.7% effective rate. Under PTE instead of SUTE, the tax would be S$10,778 (after rebate) — SUTE saves an additional S$4,148 per year. Over 3 SUTE years, the cumulative savings versus PTE are approximately S$12,000. Use the SUTE Calculator and the Sole Prop vs Pte Ltd Comparison to model your scenario.
Example 2: Established SME With S$400,000 Profit — PTE + Rebate = 9.4% Effective Rate
ABC Services Pte Ltd has been operating for 8 years. It is past the SUTE period. Chargeable income for YA2026: S$400,000.
Even without SUTE, ABC Services pays 7.6% effective — well below the headline 17% rate. The PTE exemption saves S$17,425 and the rebate saves another S$20,230. Total savings: S$37,655 versus the flat 17% rate. Every Singapore company benefits from PTE regardless of industry or size. Use the PTE Calculator with your own numbers.
Example 3: E-Commerce Business Crossing the S$1M GST Threshold — When to Register
ShopSG Pte Ltd sells consumer electronics online. Monthly revenue has been growing steadily. The quarterly check on 30 June 2026 shows trailing 12-month revenue of S$1,050,000.
ShopSG must register within 30 days of the quarter-end (by 30 July 2026). From the effective date, all prices must include or clearly state 9% GST. The net cash outflow is S$58,800/year — the difference between GST collected from customers and input credits on purchases. For businesses selling to GST-registered customers (B2B), the impact is neutral because the customer claims back the GST. For B2C (retail), GST is an effective price increase. Use the GST Threshold Checker to monitor your quarterly position.
3 Expert Tips for SUTE, PTE and GST Registration in Singapore
Structure Your Company for SUTE Before Filing YA1 — Restructuring After Is Expensive
If your startup has a corporate shareholder (even a holding company), SUTE is disqualified unless an individual holds at least 10%. The difference between SUTE and PTE on the first S$100K of profit is approximately S$4,000 per year in tax. Over 3 years, that is S$12,000. Restructuring shareholding costs S$300-S$500 via a corporate secretary. Do the math: spend S$500 to save S$12,000. Restructure before your first YA filing, not after. The SUTE Calculator shows the exact savings.
PTE Exemption Applies Automatically — You Do Not Need to Apply or Elect
Unlike SUTE (which requires meeting specific shareholder criteria), PTE is applied automatically by IRAS to every company tax assessment. There is no form to fill, no election to make, and no deadline to meet. Simply file your corporate tax return (Form C or Form C-S) and IRAS will apply PTE during assessment. If you notice PTE is missing from your Notice of Assessment, file an objection within 30 days. The same applies to the YA2026 rebate — it is automatic.
Monitor Your Trailing 12-Month Revenue Every Quarter — Missing the GST Deadline Triggers Penalties
IRAS requires businesses to check the S$1M retrospective test at every calendar quarter-end (31 Mar, 30 Jun, 30 Sep, 31 Dec). If you breach S$1M and fail to register within 30 days, penalties include fines of up to S$10,000 and potential backdating of GST registration (meaning you owe 9% on past sales without having collected it from customers). Set a quarterly calendar reminder and run the GST Threshold Checker every 3 months. If you are at S$800,000 to S$950,000, start preparing for voluntary registration to avoid a scramble.
16 Frequently Asked Questions About SUTE, PTE and GST Registration in Singapore
What is the difference between SUTE and PTE?
SUTE is for qualifying new companies in their first 3 Years of Assessment and offers 75% exemption on the first S$100,000 plus 50% on the next S$100,000. PTE is for all companies and offers 75% on the first S$10,000 plus 50% on the next S$190,000. SUTE is significantly more generous on profits between S$10,000 and S$100,000.
How do I know if my company qualifies for SUTE?
Your company must be incorporated in Singapore, be a tax resident, have no more than 20 shareholders, and all shareholders must be individuals or at least one individual must hold 10% or more of shares. Investment holding companies and property developers are excluded. The exemption applies for the first 3 consecutive YAs only.
Can a company owned by another company qualify for SUTE?
Only if at least one individual shareholder holds 10% or more of the issued ordinary shares. If the company is 100% owned by a corporate entity with no individual holding 10%+, SUTE does not apply. Consider restructuring to include an individual shareholder before the first YA.
What happens after the 3 SUTE years expire?
The company automatically falls under the standard Partial Tax Exemption (PTE) from the 4th Year of Assessment onwards. PTE applies indefinitely for all subsequent years. There is no application or transition process required.
Does PTE apply to all Singapore companies?
Yes. PTE applies to every Singapore tax-resident company regardless of size, industry, shareholding, or business activity. This includes investment holding companies and property developers that are excluded from SUTE. PTE is applied automatically by IRAS during assessment.
What is the GST rate in Singapore for 2026?
The GST rate is 9%, effective from 1 January 2024. This was raised from 8% (which applied in 2023) and from 7% (which applied until 2022). The 9% rate is expected to remain stable for the foreseeable future.
When must I register for GST?
You must register when your taxable turnover exceeds S$1 million in the past 12 months (retrospective test, checked quarterly) or when you reasonably expect it to exceed S$1 million in the next 12 months (prospective test). Registration must be completed within 30 days of the trigger.
What is the retrospective GST test?
The retrospective test checks whether your taxable turnover for the past 12 months exceeded S$1 million at each calendar quarter-end (31 Mar, 30 Jun, 30 Sep, 31 Dec). If it did, you must register for GST within 30 days of that quarter-end.
Can I voluntarily register for GST below S$1 million?
Yes. Businesses below S$1 million can voluntarily register for GST. This can be beneficial if you have large input costs (you can claim back GST on purchases). However, voluntary registration comes with a minimum 2-year commitment and quarterly filing obligations. You cannot deregister for at least 2 years.
What happens if I miss the GST registration deadline?
Late registration can result in fines of up to S$10,000, and IRAS may backdate your GST registration. Backdating means you owe 9% GST on past sales from the date you should have been registered, even though you did not collect GST from customers during that period. This creates a direct financial loss.
Do I charge GST on exports?
Exports of goods are zero-rated (0% GST). You still need to be GST-registered to zero-rate, and you can claim input tax credits on your purchases. This makes GST registration particularly advantageous for export-oriented businesses, as they collect no GST from overseas customers but reclaim GST on local purchases.
What is the difference between exempt and zero-rated supplies?
Zero-rated supplies are taxable at 0% — you charge no GST but can claim input tax credits. Exempt supplies are not subject to GST at all — you do not charge GST and cannot claim input credits related to those supplies. Financial services and residential property sales are typically exempt. Exports are zero-rated.
Can SUTE and the YA2026 rebate be used together?
Yes. SUTE reduces taxable income (exemption), and the YA2026 rebate reduces the resulting tax payable (40% discount capped at S$40,000). Both stack, producing the lowest possible effective rate. A startup with S$100,000 profit pays approximately S$2,550 in net tax after both SUTE and rebate — a 2.6% effective rate.
Is the S$1 million GST threshold based on revenue or profit?
The S$1 million threshold is based on taxable turnover (revenue from taxable supplies), not profit. Even if your company is loss-making, you must register for GST if your revenue exceeds S$1 million. This is fundamentally different from corporate income tax, which is based on chargeable income (profit).
How often do I file GST returns?
GST returns (Form GST F5) are filed quarterly, covering each 3-month accounting period. The return is due within one month after the end of each quarter. For example, the return for January-March is due by 30 April. Late filing attracts penalties of S$200 per month, capped at S$10,000.
Can I file Form C-S instead of Form C for corporate tax?
Form C-S is a simplified corporate tax return available to companies with annual revenue of S$5 million or less, only Singapore-sourced income, and not claiming carry-back of losses or group relief. Form C-S requires fewer fields and no financial statements to be attached, making it faster to complete. Most SMEs qualify for Form C-S.
Related Corporate Tax and Business Calculators for Singapore
Legal Disclaimer and Editorial Transparency
Startup Tax Exemption Scheme, Partial Tax Exemption, and corporate income tax rate of 17% per IRAS and the Income Tax Act. GST registration threshold of S$1 million and the 9% GST rate per IRAS GST regulations. YA2026 Corporate Tax Rebate of 40% capped at S$40,000 per the Singapore Budget 2025. SUTE eligibility criteria per IRAS published guidelines. Retrospective and prospective GST tests per IRAS GST e-Tax Guide. Form C-S eligibility per IRAS. Tax calculations are estimates based on published rates and may vary based on specific company circumstances, deductions, and carried-forward losses. This guide is for informational and educational purposes only. It does not constitute tax, legal, or business advice. Consult IRAS or a qualified tax professional and corporate secretary for your specific situation. Published by MAFHH INTERNATIONAL LTD. Editorially independent. We do not collect any data you enter into our calculators.
