Here is a distinction that separates companies that manage their tax from companies that merely file it.

Your corporate tax return for this financial year will be filed in November 2027. But the tax bill it produces is being decided right now — by what your company does, spends, commits to, and documents before your financial year end. Once 31 December passes (for the majority of companies on a December year end), the numbers are what they are. Filing season is arithmetic; the last quarter of the financial year is strategy.

For a December year-end company, that window is now roughly 100 days. Some of the most valuable items inside it carry hard deadlines that arrive even earlier — one of them on 30 November. This article sets out the moves worth considering before the year closes, what each one is actually worth, and the honest limits of all of them.

Why the Quarter Before Year End Is the One That Counts

Singapore’s corporate tax system rewards specific behaviours — innovation spend, training, giving, capital investment — through enhanced deductions and allowances. Nearly all of them share one rule: the expenditure must be incurred within the basis period to count for that Year of Assessment. Incurred before your FYE, a qualifying dollar reduces this year’s tax. Incurred a week after, it waits a full year.

For a profitable company inside its Start-Up Tax Exemption years, or one positioned to use the enhanced YA 2026 reliefs, the timing difference on a few deliberate decisions can be worth five figures. None of it requires aggressive structuring — just knowing the list and acting while the calendar still allows.

Move 1: Spend Your SFEC — the Deadline Is 30 November, Not Year End

The most urgent item is not a tax deduction at all. The SkillsFuture Enterprise Credit — S$10,000 per eligible employer, usable against up to 90% of out-of-pocket costs on approved training and transformation programmes — expires on 30 November 2026. All claims must be submitted by that date; training must be completed by then; unused credit is forfeited, with no carry-forward into the redesigned scheme that launches on 1 December.

If your company has unclaimed SFEC balance (check the Business Grants Portal), the practical window to enrol staff in a course that finishes in time closes over the next few weeks — a programme that runs eight weeks needs to start by early October to complete before the deadline. We covered the full mechanics in our earlier SFEC article — the short version is: check the balance this week, not in November.

Move 2: Land Qualifying EIS Spend Before Your FYE

The Enterprise Innovation Scheme turns S$1 of qualifying expenditure into S$4 of deduction. For expenditure incurred in FY2026, the claim lands in your YA 2027 return across the established categories — qualifying R&D done in Singapore, IP registration costs, approved training, licensing of qualifying IP, and innovation projects with qualified partners — and, new from this year, qualifying AI expenditure capped at S$50,000 per YA.

As we set out in our article on the AI deduction, the arithmetic is simple: S$30,000 of qualifying spend becomes a S$120,000 deduction — roughly S$20,400 of tax saved at 17%, before exemptions. The condition is that the expenditure is genuinely incurred, directly attributable, and documented before the year closes. A contract signed in January 2027 belongs to next year’s claim. If an AI tool, a training programme, or an IP registration was already on your roadmap, landing it inside this financial year is the difference between claiming it twelve months earlier or later — and for the AI category, the scheme currently runs only to YA 2028.

One discipline point: claims are computed net of grants. If PSG co-funds the purchase, the enhanced deduction applies to your out-of-pocket portion.

Move 3: Make Planned Donations Before the Year Closes — and Note the Budget 2026 Change

Qualifying donations to Institutions of a Public Character attract a 250% tax deduction: S$10,000 given reduces taxable income by S$25,000, saving S$4,250 at the headline rate.

Two things worth knowing this quarter. First, the deduction counts in the year the cash is actually transferred — a pledge does not qualify until paid, so a donation intended for “this year” must clear before your FYE. Second, a correction to widely repeated information: the 250% rate was originally due to lapse for donations made after 31 December 2026, but Budget 2026 extended it to 31 December 2029. There is no cliff-edge this December — so give on your own timetable, but if the company planned to give this year anyway, giving before the FYE brings the deduction forward a full year.

Unutilised donation deductions can generally be carried forward up to five YAs, subject to the usual conditions.

Move 4: Time Your Capital Expenditure Deliberately

Plant, machinery, and equipment attract capital allowances — and the acquisition date determines which YA the allowances start in. Buying in December rather than January starts the write-off a year earlier.

Three mechanics worth knowing. Low-value assets costing S$5,000 or less each can be written off 100% in the year of purchase, subject to an aggregate cap of S$30,000 per YA — useful for laptops, monitors, and small equipment. Computers and prescribed automation equipment qualify for a full one-year write-off regardless of cost. Everything else defaults to a three-year write-off under Section 19A.

This is not a licence to buy things you do not need — a S$10,000 machine bought purely for the deduction still costs S$8,300 after tax. But equipment you were going to buy in Q1 anyway is often worth pulling into Q4.

Move 5: Renovation Works — the S14N Deduction

Renovation and refurbishment expenditure that does not qualify for capital allowances — flooring, fixed partitions, lighting, built-ins — can be deducted under Section 14N, capped at S$300,000 per company over each fixed three-year period. Since YA 2025, companies can opt to claim the full deduction in one YA instead of spreading it over three, which materially improves the cash-flow value for a profitable year.

If an office fit-out is planned and the current three-year block has unused cap, completing and incurring the cost before FYE puts the deduction into this year’s computation. Keep the invoices itemised: S14N items, capital-allowance items, and non-qualifying items (like antiques or fine art) need to be separable.

Move 6: Clean the Book — Bad Debts, Obsolete Stock, Committed Bonuses

Three unglamorous items that companies routinely leave until filing time, when it is too late for the current year:

Bad debts. Trade debts that are genuinely irrecoverable are deductible — but the write-off decision and the recovery-effort evidence should exist within the year. Review the aged receivables now; a debt you can show you pursued and wrote off in December is this year’s deduction.

Obsolete stock. Stock written down to net realisable value on a specific, itemised basis reduces this year’s profit. General provisions do not qualify — the review has to identify actual items.

Staff bonuses. Bonuses are deductible in the year the company becomes legally committed to pay them, even if paid after year end. A board-approved, documented bonus commitment made before FYE belongs in this year’s computation; a discretionary decision made in February does not. If the bonus pool is decided, paper it before the year closes.

Move 7: Review the Director Remuneration Mix While It Can Still Be Changed

As we covered in our article on paying yourself, the split between salary, fees, and dividends interacts with the company’s exemption position — SUTE or PTE — and the enhanced YA 2026 CIT Rebate of 50% (capped at S$40,000 of total benefit). Additional salary is deductible to the company but taxable to you and CPF-bearing; retained profit is taxed at low effective rates inside the exemptions and can come out later as tax-free dividends.

The point for this quarter is simply that the mix is adjustable now and fixed later. Salary and committed bonuses need to be in place before year end; the arithmetic is worth an hour with your accountant in October, not a regret in March.

Move 8: If the Year Went Badly — the Carry-Back

Not every year-end plan is about reducing a profit. A company finishing the year in a loss can elect to carry back up to S$100,000 of current-year unabsorbed capital allowances and trade losses to the immediately preceding YA — generating a refund of tax already paid, subject to the usual conditions. For a company that paid tax last year and hit a wall this year, the carry-back is real cash in a lean period, and it is claimed in the tax filing rather than lost by default only if someone remembers to elect it.

What Does Not Work — an Honest Note

Year-end planning has limits, and pretending otherwise is how companies buy trouble. Deductions follow expenditure genuinely incurred for the business: invoicing early for work not done, round-tripping payments, backdating resolutions, or manufacturing “training” that nobody attended are not planning — they are the fact patterns IRAS audits are built to find, and the penalties under the general anti-avoidance and record-keeping provisions outrun any saving. Every move in this article works precisely because it involves real spending, real giving, or real decisions the company was free to time. Timing is legitimate; fiction is not.

The 100-Day Timeline

Now through October: check the SFEC balance and enrol in any course that must finish by 30 November; confirm your EIS-qualifying spend for the year and what can still land before FYE; review aged receivables and stock; book the remuneration-mix conversation.

November: submit all SFEC claims well before 30 November; file the YA 2026 corporate tax return by 30 November (a separate obligation for last financial year — do not conflate the two); complete planned capex and R&R works; paper bonus commitments.

December: make planned donations before FYE; final sweep of bad-debt write-offs and stock adjustments; confirm every deduction-bearing invoice is dated, received, and recorded inside the year.

A Year-End Checklist

• SFEC balance checked; claims submitted before 30 November
• YA 2026 tax return filed by 30 November (last year’s return — separate from this planning)
• EIS-qualifying spend (training, R&D, IP, AI) incurred and documented before FYE
• Planned IPC donations paid before FYE
• Q1 equipment purchases assessed for pull-forward; low-value asset cap (S$30,000) used deliberately
• R&R works completed and itemised against the S$300,000 three-year cap
• Bad debts reviewed and written off with evidence; obsolete stock specifically identified
• Bonus commitments board-approved and documented before year end
• Director remuneration mix reviewed against SUTE/PTE position
• If loss-making: carry-back election flagged for the tax filing

How A1 Accounting Helps

Year-end tax planning only works when the books are current enough to plan from — which is the quiet advantage our bookkeeping clients start with. In October and November we run exactly this review for clients: where the year’s profit is landing, which exemptions and enhanced deductions are in play, what qualifying spend is worth pulling forward, and what needs to be papered before the year closes. Then the same records flow straight into the ECI and the tax computation, with every claim already documented.

If your financial year ends on 31 December and nobody has looked at your numbers with this lens yet, there is still time — but the useful window is now, late September and October, not the last week of December.

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A hundred days is enough time to plan properly — if you start now. Reach out this week and we will run the year-end review with you.

Disclaimer: This article is for general informational purposes only and does not constitute tax advice. Deduction and allowance claims depend on individual circumstances and must satisfy the conditions in the Income Tax Act 1947 and IRAS’s published guidance. Consult a qualified tax professional and refer to IRAS at iras.gov.sg before acting.