What ECI means
ECI stands for Estimated Chargeable Income. It is not the same as revenue and not always the same as accounting profit.
A company may need tax adjustments before estimating taxable income, so the estimate depends on clean books and a proper review of expenses, allowances, and unusual transactions.
When ECI is due
IRAS guidance says ECI is generally due within 3 months after the end of the financial year unless the company qualifies for a waiver or is otherwise not required to file.
| Financial year end | General ECI timing | Founder action |
|---|---|---|
| 31 December | By 31 March | Close prior-year books in January and February |
| 31 March | By 30 June | Review taxable profit before the June deadline |
| 30 June | By 30 September | Use Q3 to complete year-end reconciliation and review |
Who may not need to file ECI
The waiver is fact-specific, so founders should check the latest IRAS guidance before relying on it. As a practical rule from IRAS guidance, nil ECI does not need to be filed when the company annual revenue is $5 million or below.
If annual revenue is above $5 million, nil ECI may still need to be filed. Do not assume an early-stage or loss-making company can ignore the question.
| Position | Likely treatment | Founder note |
|---|---|---|
| Nil ECI and annual revenue $5 million or below | ECI filing waiver may apply | Keep workings showing revenue and nil ECI position |
| Nil ECI and annual revenue above $5 million | ECI filing may still be required | File nil ECI if required by IRAS guidance |
| Positive ECI | File ECI unless a specific non-filing position applies | Review taxable income, not just bank balance |
What founders should prepare
ECI is hard when bookkeeping is late. Monthly books make the ECI review a short tax-position check instead of a rushed cleanup project.
- Profit and loss for the financial year
- Balance sheet and bank reconciliations
- Revenue schedule and invoice records
- Expense records and non-deductible expense review
- Payroll records, fixed assets, and director/shareholder loan review
- Prior-year losses or allowances, if relevant
- Corppass access for filing
This article is general information only and is not tax, legal, pricing, investment, or accounting advice. Check current official guidance and get professional advice for your company facts.