Most Singapore SME owners hear “400% tax deduction” and quietly file it under too good to be true or too complicated to bother. It’s neither. The Enterprise Innovation Scheme (EIS) is a real, IRAS-administered incentive, and from 2027 it specifically rewards spending on AI — the kind of work an AI consultancy Singapore SMEs trust would scope for you.
But the headline number gets thrown around carelessly, and an owner who acts on the hype version can end up disappointed. So let’s do the opposite: take a realistic project — a S$100,000 AI telemarketing system — and work through exactly what the scheme does and doesn’t save, in plain figures.
What the EIS actually is
The EIS is Singapore’s flagship innovation tax incentive, available from YA 2024 to YA 2028. In Budget 2026, the government added AI expenditure as a new qualifying activity for YA 2027 and YA 2028, letting businesses claim a 400% tax deduction on up to S$50,000 of qualifying AI spending per year.
Two things to fix in your mind before any numbers, because they’re where most misunderstandings start:
First, it is a tax deduction, not a cash grant. It reduces your taxable income; it doesn’t post money into your bank account. The benefit only materialises if your business is profitable enough to have tax to offset. A loss-making year gets nothing from it. (Unlike some other EIS categories, the AI category has no cash-payout option at all.)
Second, the S$50,000 cap is per year. The “400%” applies only to the first S$50,000 of qualifying AI spend in a Year of Assessment — not to your whole project. That single detail changes the math on a six-figure build, as you’ll see.
The scenario: a S$100,000 AI telemarketing centre
Say an SME engages us to build an AI-powered telemarketing operation: AI voice agents that call and qualify leads, an automated follow-up system, and integration into the company’s CRM so every conversation is logged and scored. Total project cost: S$100,000.
To keep the example clean, assume the company is profitable, taxed at the standard 17% corporate rate, and that the spend qualifies as AI expenditure once IRAS finalises the criteria (more on that caveat at the end).
Here’s how the same S$100,000 is treated with and without the scheme.
| Without EIS | With EIS (AI category) | |
|---|---|---|
| Project cost | S$100,000 | S$100,000 |
| First S$50,000 (the cap) | Normal 100% deduction = S$50,000 | 400% deduction = S$200,000 |
| Remaining S$50,000 | Normal 100% deduction = S$50,000 | Normal 100% deduction = S$50,000 |
| Total tax deduction | S$100,000 | S$250,000 |
| Tax reduced (at 17%) | S$17,000 | S$42,500 |
So the picture is this. Any business expense is already deductible, so even without the scheme, spending S$100,000 lowers the tax bill by S$17,000 — your effective cost after tax is about S$83,000.
The EIS goes further on the first S$50,000: instead of deducting S$50,000, you deduct S$200,000. That extra S$150,000 of deduction, at 17%, is worth S$25,500 in additional tax savings. It brings the effective cost of the project down from S$83,000 to roughly S$57,500.
In other words, the honest version of the pitch isn’t “the government pays for your AI.” It’s: a S$100,000 AI project effectively costs you closer to S$57,500 once the deduction is applied — provided you’re profitable enough to use it.
The timing trick worth knowing
Because the S$50,000 cap resets each year, when the money is spent matters. The AI category runs across two Years of Assessment — YA 2027 and YA 2028 — and the cap applies to each.
If the project is genuinely phased so that S$50,000 of qualifying spend falls in YA 2027 and S$50,000 in YA 2028 — for example, a build delivered in stages, or a subscription paid across two financial years — then the 400% treatment can apply to S$50,000 twice:
- YA 2027: S$50,000 → S$200,000 deduction → S$34,000 tax reduced
- YA 2028: S$50,000 → S$200,000 deduction → S$34,000 tax reduced
That’s up to S$68,000 in total tax reduced across the two years, versus S$17,000 with no scheme — pulling the effective cost of the same S$100,000 project down toward S$32,000.
The important word is genuinely. The expenditure has to actually be incurred in each year — you can’t retroactively split a single lump-sum invoice to game the cap. But for a project that’s naturally rolled out in phases, lining the spend up with both years is simply good planning.
A few rules that protect the claim
Three things keep a claim clean, and they’re worth building in from the start rather than scrambling at tax time:
Don’t double-dip with grants. If the client also takes a grant — say PSG or EDG — on the same project, the EIS claim must be calculated net of that grant. Only the portion the business pays out of its own pocket counts as qualifying AI expenditure, so the funded part is out. Track the grant-funded and self-funded portions in separate accounts.
Document it as a project, not a line item. Keep the contract, the invoices, a short note on the business problem and expected outcome, and who owns it internally. IRAS can audit EIS claims, and records should be kept for several years.
Don’t assume every “AI” tool qualifies. Not everything with an AI label will meet the definition. IRAS is due to publish the detailed AI-category criteria by mid-2026, so until then, treat any specific claim as provisional and confirm it before relying on the savings.
The honest bottom line
The 400% AI deduction is genuinely worth having — on our example, somewhere between S$25,500 and (with careful two-year timing) S$51,000 in extra tax savings on a S$100,000 build. But it’s a deduction that rewards a profitable, well-documented, properly-scoped AI project; it isn’t free money, and the S$50,000 annual cap means it works best as a meaningful discount rather than a windfall.
Used well, it changes the question an owner asks from “can we afford to invest in AI this year?” to “how do we scope and time this so the investment works hardest?”
One necessary note: this article explains how the scheme works in principle and uses illustrative figures at the 17% rate — it isn’t tax advice. The actual treatment depends on your company’s tax position and IRAS’s final criteria, so your accountant or tax agent should handle the claim, and anything uncertain should go to IRAS.
Where Oasis Web Asia comes in
As an AI consultancy Singapore SMEs trust, our job is the part that happens before the tax form: scoping an AI project that delivers a real business result — like an AI telemarketing centre that actually fills your pipeline — and documenting it cleanly so the qualifying spend is clear when your accountant files. We can also help you phase a build sensibly across financial years and keep any grant and EIS portions properly separated, so you capture the benefit without tripping an audit.
If you’ve been weighing up an AI project and wondering what it really costs after the incentives, that’s exactly the conversation we like to have.
Start a conversation → — get a free consultation with our Singapore-based team.