Carrying losses forward: the shareholding test explained
Early losses can shelter future profits — unless a fundraise breaks the shareholding test. How carry-forward works, and when to defer capital allowance claims.
Can my company use past losses to reduce future tax?
Yes — unabsorbed trade losses and capital allowances carry forward indefinitely, provided the shareholding test is met: substantially the same ultimate shareholders, at least 50%, at the relevant comparison dates. Capital allowances additionally require the same trade to continue. A major fundraise or share transfer can break the test and forfeit the balances, though IRAS may waive the test for genuine commercial changes. In loss years, consider deferring capital allowance claims to keep them safer.
Most startups lose money before they make it. The tax system's consolation is real: unabsorbed trade losses and capital allowances carry forward indefinitely and offset future profits — a company that burned S$300,000 getting to product-market fit pays no tax on its first S$300,000 of profit. But the carry-forward comes with conditions, and the most common way founders lose it is also the moment they celebrate: a fundraise.
The shareholding test
Losses carry forward only if there is no substantial change in the ultimate shareholders — at least 50% common shareholding between two comparison dates (for losses, broadly the end of the year the loss arose and the start of the Year of Assessment in which it is used; see s37 of the Income Tax Act). The comparison looks through to ultimate shareholders — individual owners behind any corporate layers.
What typically threatens it:
- a large equity round that dilutes founders below half;
- a founder exit or buyout;
- a restructuring that inserts or removes a holding company without care.
Capital allowances: one more condition
Unabsorbed capital allowances face the shareholding test plus the same-trade test: the company must continue carrying on the same trade or business that gave rise to them. Pivot the business entirely and old allowance balances fall away even with unchanged ownership. Losses are more forgiving on this point than allowances — one reason they are worth distinguishing in your computation.
This asymmetry drives a practical planning move from the accountant's playbook: in a loss year, consider deferring capital allowance claims. Allowances are elective in timing — deferring doesn't waste the expenditure, it parks it until a profitable year, where it reduces tax immediately instead of swelling a conditional carry-forward balance. This is legitimate planning, not avoidance.
Broken test ≠ automatic loss
If a substantial change happens for genuine commercial reasons — a bona fide fundraise, not a loss-trafficking arrangement — IRAS may waive the shareholding test on application, with the losses then ring-fenced against profits of the same trade. The waiver is discretionary: apply, explain the commercial rationale, and keep the paper trail.
Before your next round
- Quantify the balances — know what unabsorbed losses and allowances are at stake before signing a term sheet.
- Model the dilution against the 50% threshold, at ultimate-shareholder level.
- If the test will break, prepare the waiver application alongside the round — contemporaneous commercial documentation is exactly what IRAS wants to see.
- Record everything — the five-year record rule applies, but carry-forward balances can matter far longer; keep the computations from the loss years indefinitely.
A small mention for completeness: current-year losses can also be carried back one YA (capped at S$100,000) for an immediate refund against last year's tax — occasionally useful for a company that dipped into loss after a profitable start. The basics guide covers where losses sit in the wider computation.
Frequently asked questions
This guide is general information, not legal or tax advice. Confirm requirements with ACRA and IRAS, or speak to your corporate secretary.