400% tax deduction for AI adoption: the full EIS rules

From Year of Assessment (YA) 2027, Singapore businesses can claim a 400% tax deduction on the first S$50,000 of qualifying artificial intelligence (AI) expenditure each year. The basis is IRAS's Enterprise Innovation Scheme (EIS) — Budget 2026 added a sixth qualifying activity to it: adoption of AI.

The measure applies only to YA 2027 and YA 2028; the cap is applied per year of assessment and cannot be combined across years.

1. First, plainly: this is a deduction, not a grant

This is the most commonly misread point. A 400% deduction means you may deduct four times the amount from your taxable income and therefore pay less tax; the government does not hand you cash.

A concrete example: a company spends S$10,000 on qualifying AI in a year, creating S$40,000 of deductions. If its taxable income was S$100,000, it falls to S$60,000; at the 17% corporate rate, the tax saved is the tax on that S$40,000 — S$6,800 — not S$40,000 in cash.

Conversely: if the company has no taxable income that year — loss-making or just starting out — the deduction saves nothing, because its value depends entirely on there being profit to offset. That differs from the R&D categories, as below.

2. Two calculations, depending on the nature of the spend

• If the spend is deductible under section 14 (revenue in nature): the first S$50,000 gets 100% base plus 300% enhanced = 400%; anything above S$50,000 gets only the 100% base deduction.
• If the spend is capital in nature and not deductible under section 14: the first S$50,000 gets a straight 400% deduction; anything above it gets nothing.

In other words, the same “400%” can mean “100 + 300” or “400 + 0”. That is why an accountant or tax adviser is not optional here — misclassify the spend and the number moves a long way.

3. What counts as qualifying AI expenditure

Per IRAS, there are only two categories:

1. Subscribing to, or licensing from another person, an “AI system” — for example machine-learning models, conversational AI, generative language models, computer vision, machine translation, sentiment analysis.
2. Subscribing to, acquiring or licensing a “qualifying AI business service” — a service provided to support the adoption or development of AI in the business, and which relates to the development, deployment, operation or maintenance of an AI system. Examples: online platforms, system development, consultancy and strategy, data and analytics, R&D, systems engineering and compliance, system-related training.

Typical items that are excluded (worth remembering)

• Physical infrastructure and hardware — servers, storage devices, computing equipment. These may get capital allowances instead, but do not count for this 400%.
• Amounts covered by government grants or subsidies — the qualifying amount is taken net of them.
• Spend already claimed under other provisions — no double claiming.
• An AI system already given allowances under section 19 or 19A; and an AI system sub-licensed to someone else.
• General services unrelated to the development, deployment, operation or maintenance of an AI system.

One practical point: if a single invoice is partly qualifying AI spend and partly something else, only the AI portion gets the enhanced deduction. IRAS may ask how you split it — so get the vendor to price the AI component separately, or keep a documented basis for apportionment.

4. Who qualifies and how to claim

• Who: sole proprietorships, partnerships, companies (including registered business trusts), and registered branches and subsidiaries of a foreign parent.
• Conditions: active business operations in Singapore; expenditure incurred in the basis period of the qualifying YA.
• How: self-assessed, claimed in the annual corporate tax return (Form C-S or Form C); the e-filing deadline is 30 November of the YA. No separate application to IRAS or EnterpriseSG.
• Records: invoices, payment proofs, vendor contracts and a description of the AI tools/services used, kept at least five years (IRAS may audit).

A specific caution: this AI activity has no cash-conversion option. Under EIS, R&D, IP and training can opt to convert up to S$100,000 of qualifying spend into cash at 20% (capped at S$20,000 per YA, tax-exempt); AI adoption is excluded from that. For companies not yet profitable, that is a real trade-off.

5. How it relates to the rest of EIS

Parallel, not a shared cap. The four existing activities (qualifying R&D in Singapore, IP registration, IP acquisition and licensing, qualifying training) each carry a S$400,000 annual cap at 400%; innovation projects with polytechnics, ITE and other partners have a separate S$50,000 cap; AI adoption is an independent sixth activity, capped at S$50,000. R&D and AI can be claimed in the same YA.

But the same spend cannot be claimed twice — if your AI work is genuinely R&D with technical uncertainty, you may route it through the S$400,000 R&D cap, but then it cannot also count toward the S$50,000 AI cap.

6. My take

First, the real threshold is not spending S$50,000 but spending the right S$50,000. Hardware is out, subsidies are netted off, general services are out — what fits is the “buying capability” spend: subscriptions, licences, consultancy, implementation, data and analytics, systems training. A company that follows old habits and puts the budget into servers and racks gets nothing from this measure.

Second, it favours profitable companies. A 400% deduction saves tax, and with no taxable income there is nothing to save; AI adoption, uniquely, has no cash-conversion route. For startups and loss-makers the more realistic move is to split the spend: route what is genuinely R&D through R&D (which has cash conversion), and pure procurement through the S$50,000 AI cap.

Third, the two-YA window is short and already counting down. For a December year-end company, the YA 2027 basis period is financial year 2026 — meaning contracts signed and paid for this year may be the ones that fill the first S$50,000. A business still “watching first” will quietly lose half the window.

Source note: this piece takes the video's public title and description as its starting point, but all rules, definitions, exclusions and filing requirements follow IRAS's official EIS page, the IRAS e-Tax Guide and Annex C-1 of Budget 2026, with reference to EY's tax alert of 28 October 2026. This is not tax advice; consult your accountant or tax adviser for an actual claim. Original video: https://weixin.qq.com/sph/AhoS3pB2Fu