Get your EIS claim right the first time. This checklist covers all qualifying activities, required documents, and realistic timelines for claiming up to 400% tax deduction.
Eligibility Quick Check
Answer these questions before proceeding:
Company Requirements
- Singapore-registered companyNot completed
- Incurring qualifying innovation expenses between 2023-2027Not completed
- Filing for YA 2024 to YA 2028Not completed
- Have taxable income OR elect for cash payout optionNot completed
Expense Requirements
- Expenses fall under qualifying activities (R&D, IP, training, innovation projects)Not completed
- Expenses NOT already claimed under other schemesNot completed
- Proper documentation maintained for all expensesNot completed
All boxes checked? Proceed to identify your qualifying activities.
Qualifying Activities and Documents
1. R&D in Singapore
What qualifies:
- Scientific or technological research conducted in Singapore
- Product development and testing
- Process improvement research
- Software development with technical uncertainty
Documents required:
- R&D project plan with clear objectives
- Technical reports showing innovation/uncertainty
- Staff time records allocated to R&D
- Invoices and receipts for R&D materials
- Third-party R&D contracts (if outsourced)
- Evidence R&D was conducted in Singapore
2. IP Registration
What qualifies:
- Patent registration fees
- Trademark registration
- Design registration
- Plant variety protection
- IP application and legal costs
Documents required:
- IP registration certificates or application receipts
- Invoices from IP agents or legal firms
- Proof of payment
- IP ownership documentation
Important: One-year ownership requirement applies. If you sell or transfer the IP within one year, the deduction will be clawed back.
3. IP Acquisition and Licensing
What qualifies:
- Acquiring IP rights from third parties
- Licensing fees for IP used in business
- IP valuation costs
Documents required:
- IP acquisition or licensing agreement
- Valuation report (for acquired IP)
- Proof of payment
- Evidence IP is used in Singapore business operations
4. Training (SSG-Funded or Skills Framework Aligned)
What qualifies:
- Courses funded by SkillsFuture Singapore (SSG)
- Training aligned with Skills Framework
- External training programs for employees
- In-house training with structured curriculum
Documents required:
- Course registration and completion certificates
- SSG funding letter (if applicable)
- Training provider invoices
- Employee attendance records
- Evidence of Skills Framework alignment
5. Innovation Projects with Polytechnics/ITE
What qualifies:
- Collaborative projects with polytechnics
- Innovation partnerships with ITE
- Joint research and development initiatives
Documents required:
- Project agreement with institution
- Project scope and deliverables
- Milestone reports
- Invoices and payment proof
- Final project outcomes report
Tax Deduction vs Cash Payout
Choose the right option for your situation:
| Factor | Tax Deduction | Cash Payout |
|---|---|---|
| Best for | Profitable companies | Startups, loss-making companies |
| Benefit | 400% deduction on first S$400K | 20% cash on up to S$100K expenses |
| Maximum value | S$68,000 tax savings* | S$20,000 cash |
| When received | Tax filing assessment | After YA assessment |
| Requirement | Must have taxable income | No taxable income needed |
*Assumes 17% corporate tax rate on S$400K deduction.
When to Choose Cash Payout
- Your company has no taxable income this YA
- You need immediate cash flow support
- Your qualifying expenses are under S$100,000
- You are a startup in pre-revenue phase
When to Choose Tax Deduction
- Your company is profitable
- Your qualifying expenses exceed S$100,000
- You want maximum tax benefit
- You can wait until tax assessment for benefit
Note: You can split expenses between both options, but cannot claim both benefits for the same expense.
Claim Process Timeline
Annual Tax Filing Route
| Step | Timeline | Action |
|---|---|---|
| 1 | Throughout year | Incur and document qualifying expenses |
| 2 | By Nov 30 | Prepare EIS claim via IRAS digital service |
| 3 | By Nov 30 | File Form C-S/Form C with EIS claim |
| 4 | 3-6 months | IRAS assessment and processing |
| 5 | After assessment | Receive tax benefit or cash payout |
Key Deadlines
| Year of Assessment | Expenses Incurred | Filing Deadline |
|---|---|---|
| YA 2024 | 2023 | 30 Nov 2024 |
| YA 2025 | 2024 | 30 Nov 2025 |
| YA 2026 | 2025 | 30 Nov 2026 |
| YA 2027 | 2026 | 30 Nov 2027 |
| YA 2028 | 2027 | 30 Nov 2028 |
Realistic Processing Times
- Standard processing: 3-6 months after filing
- With queries: 6-12 months (IRAS may request additional documentation)
- Cash payout disbursement: 1-2 months after assessment
Documents Required
Core Documents (All Claims)
- Company financial statements
- Detailed expense breakdown by qualifying activity
- Invoices and receipts for all claimed expenses
- Proof of payment (bank statements, payment vouchers)
- Declaration of no double-claiming
Activity-Specific Documents
| Activity | Additional Documents |
|---|---|
| R&D | Project plans, technical reports, staff timesheets |
| IP Registration | Certificates, agent invoices, ownership proof |
| IP Acquisition | Agreements, valuations, usage evidence |
| Training | Certificates, attendance, SSG letters |
| Innovation Projects | Agreements, milestone reports, outcomes |
Record Retention
Keep all documents for 5 years after the Year of Assessment. IRAS may audit claims within this period.
Common Pitfalls to Avoid
Documentation Failures
- Vague R&D descriptions: Document specific technical challenges and how your project addresses them
- Missing time records: Track staff hours allocated to qualifying activities
- Incomplete invoices: Ensure all invoices clearly state the qualifying activity
Eligibility Mistakes
- Double-claiming: Do not claim same expenses under EIS and other schemes (e.g., EDG, PIC)
- Non-qualifying training: Ensure courses are SSG-funded or Skills Framework aligned
- Overseas R&D: Only R&D conducted in Singapore qualifies
Timing Errors
- Late filing: Submit by November 30 of the relevant YA
- Wrong YA: Match expenses to the correct Year of Assessment
- IP disposal: Selling IP within one year triggers claw-back
Cash Payout Limitations
- Exceeding cap: Cash payout limited to S$100K expenses (S$20K cash) per YA
- Partial election: You cannot change your election after filing
Related Tax Filing Guides
- IRAS Tax Incentives Directory — overview of all IRAS incentives
- EIS Budget 2026 AI Changes — new AI qualifying activity with separate S$50K cap
- DTD Mistakes to Avoid — if you also claim overseas deductions
- CIT Rebate & Cash Grant YA 2026 — automatic rebate on top of your EIS claim
Related Guides
-
Enterprise Innovation Scheme - Full scheme details and eligibility
-
EIS vs DTD Decision Matrix - Compare innovation and overseas expansion incentives
-
Grant Pitfalls Guide - Common mistakes to avoid
-
Singapore Grants Glossary - Key terms and definitions
-
[Double Tax Deduction for Internationalisation (DTDi)](/grants/double-tax-deduction-for-internationalisation/)
Official Links
- IRAS EIS Overview - Official scheme page
- EIS e-Tax Guide (PDF) - Detailed guidelines
- mytax.iras.gov.sg - File EIS claims online
- SkillsFuture Singapore - Verify SSG-funded courses
- Skills Framework - Check training alignment
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