Filing your corporate tax return is the floor, not the ceiling. Two companies with identical profits can end up paying very different amounts of tax — legally — depending on how well they plan. This is the advisory side of corporate tax: not just getting the return in on time, but structuring things so you keep more of what you earn. (For the filing mechanics — ECI, Form C-S, deadlines — see our corporate tax basics guide.)
Filing vs advisory: what's the difference
Filing is compliance — reporting what happened accurately and on time. Advisory is forward-looking — making decisions before the year closes that change what you'll owe. By the time you're filing, most of the planning opportunities have already passed. The value is in the conversations you have during the year, not the form you submit after it.
Exemptions and reliefs worth knowing
Singapore offers genuine reductions if you claim them properly:
- Start-up tax exemption — significant relief on early-year profits for qualifying new companies, structured around years of assessment (which is why your financial year-end choice matters — see our FYE guide).
- Partial tax exemption — available to companies more broadly once the start-up window ends.
- Capital allowances — deductions on qualifying plant, machinery and equipment that spread (or accelerate) the tax benefit of capital spending.
Where planning actually moves the needle
The decisions that change your tax position are often ordinary business decisions made with tax in mind: the timing of major purchases and how they're financed, how you remunerate director-shareholders (salary vs dividend), whether and when to bring forward or defer income and expenses across a year-end, and how group structures are arranged. None of these are exotic — but each can shift your effective rate.
Incentives and the bigger picture
Beyond the standard reliefs, Singapore runs various industry and activity-based incentive schemes. Not every company qualifies, and chasing an incentive you don't fit is wasted effort — but knowing which ones could apply to your sector is part of a proper advisory conversation. The goal is to match your actual business to the reliefs and incentives genuinely available to it.
When to get advice
The best time is before you make a big move — a major investment, a restructure, a new revenue line, a change in how owners are paid. The second-best time is at your year-end planning review, while there's still room to act. The worst time is after filing, when the year is closed and the options are gone. If tax only comes up once a year when the return is due, you're almost certainly leaving money on the table.
Want more than just filing?
We do the advisory work that lowers your bill legally — and tell you the truths that save you money. Your business, our business.
See our Taxation service →This article is general information, not legal or tax advice, and rules can change. ACRA, IRAS and MOM requirements are set by those authorities. For advice specific to your situation, talk to us.