Singapore regular savings plans: returns, fees and tax

By GrowThenDraw Editorial Team · Updated July 25, 2026 · 8 min read · Editorial policy

A regular savings plan, or RSP, is Singapore's familiar name for investing a fixed amount automatically at regular intervals. It describes the contribution schedule—not a special asset class, tax wrapper or guaranteed-return product.

That distinction matters. An RSP can buy an ETF, unit trust or another eligible investment, so its outcome depends on what you buy, the price path and every layer of fees. The calculator gives you a transparent projection; this guide explains what sits behind it.

What an RSP does

A typical RSP deducts a chosen amount from your bank account each month and invests it on a scheduled date. Because the cash amount stays fixed, it buys more units when prices are lower and fewer when prices are higher. This is dollar-cost averaging.

Regular investing removes the need to guess the perfect entry date, but it does not remove market risk. Your balance can fall, especially over short periods, and a disciplined schedule cannot turn a risky investment into a guaranteed one.

How regular savings plan returns are calculated

Each contribution compounds for a different number of months. GrowThenDraw adds the contribution at the start of every month, applies the annual return after the fund expense ratio, and repeats the process for the full term. An optional annual step-up increases contributions from year two onward.

For example, S$500 invested monthly for 10 years at a 6% gross annual return and a 0.3% annual expense ratio projects to about S$81,002. You contribute S$60,000 and the model attributes about S$21,002 to growth. This is a smooth mathematical scenario, not a promise: real market returns arrive unevenly and can be negative.

The target mode runs the same calculation backwards. Enter the amount and deadline you want, and it estimates the starting monthly contribution required under your assumptions.

Choosing a return assumption

Use a total-return assumption that includes reinvested distributions, then test more than one scenario. Do not simply copy the strongest recent period. FTSE Russell reported a 16.2% annualised five-year total return for the STI at 30 January 2026, but one unusually strong window is not a responsible forecast for the next decade.

The calculator's 6% default is an editable planning assumption, not a prediction. Run a lower case, your central case and a higher case. If the plan only works under the optimistic case, the contribution or timeline needs attention.

The fees that can reduce an RSP return

Enter recurring fund and platform costs in the calculator's fund expense-ratio field. If a fixed or percentage sales charge is deducted from each contribution, reduce the monthly investment input to the amount that is actually invested. Check the product highlights sheet and platform schedule rather than relying on a headline fee.

MoneySense notes that fees are payable even when a fund performs poorly and that returns must first overcome those costs. Small annual differences compound into meaningful amounts over a long RSP.

• Fund expenses: management, trustee, custody and other recurring costs paid from the fund.
• Platform or wrap fees: recurring charges imposed by some distributors or advisers.
• Transaction or sales charges: amounts deducted when contributions are invested, switched or redeemed.
• Currency conversion costs: relevant when an SGD contribution buys a foreign-currency investment.

How Singapore generally taxes investment gains

IRAS says gains from selling shares and financial instruments held as personal investments are generally not taxable. That is why the Singapore calculator does not deduct capital-gains tax from a normal long-term RSP projection.

The word generally is important. Tax treatment depends on the facts and circumstances; activity carried on as a trade can be income rather than a personal capital gain. Employee share awards and some other arrangements also have their own rules. The calculator does not decide an investor's legal tax status.

Many dividends commonly received by individuals are also non-taxable, including dividends from Singapore-resident companies under the one-tier corporate tax system, subject to the exceptions IRAS lists.

RSP does not mean guaranteed savings plan

Search results often mix market-investment RSPs with bank savings accounts, endowment policies and investment-linked insurance policies. They are not interchangeable. Before entering a projected return, identify whether the product holds market investments, pays a stated deposit rate, or provides guaranteed and non-guaranteed insurance values.

For any market investment, read the product highlights sheet, understand what can be lost, and verify that the provider is regulated. GrowThenDraw does not rank or recommend providers.

A practical way to use the RSP calculator

• Enter the amount already invested and the monthly amount that reaches the investment after transaction charges.
• Choose a realistic horizon and test several total-return assumptions.
• Enter the recurring fund and platform expense ratio.
• Keep inflation switched on so the result is also shown in today's purchasing power.
• Try target mode to estimate the monthly contribution needed for a specific goal.
• Save the plan link, then rerun it when your contribution, fees or goal changes.