When the second leg of the GST hike kicked in on 1 January 2024, the headline framing was familiar — one percentage point, "phased gradually since 2023", offset by Assurance Package payments and CDC Vouchers, "Singapore's GST is still among the lowest in developed Asia". All true. None of it answered the question my family kept asking at the dinner table: *what does this actually cost us per year?*
The arithmetic is straightforward. The problem is that the public-facing announcements rarely show the arithmetic. Here it is.
The arithmetic at three household sizes
I'll use three illustrative households. The expenditure figures are not from any one official survey — they're stylised mid-points that roughly line up with the bands in the most recent Household Expenditure Survey publications. Treat them as worked examples, not population averages for your exact situation.
*Household A — single working adult, modest spend.* GST-applicable expenditure: roughly S$2,400 per month. This is what's left after stripping out rent (which is GST-exempt for residential), CPF, mortgage principal, and savings — so it's groceries, food delivery, transport, mobile bill, subscriptions, retail, occasional travel.
- At 9%: S$216/month in GST → S$2,592/year
- At 7% (pre-2023): S$168/month → S$2,016/year
- Additional cost from the two-step hike: about S$576/year
*Household B — couple, mid-career.* GST-applicable expenditure: roughly S$4,000 per month. Two phones, two transport accounts, weekend dining, the occasional big-ticket purchase amortised across the year.
- At 9%: S$360/month → S$4,320/year
- At 7%: S$280/month → S$3,360/year
- Additional cost: about S$960/year
*Household C — family of four, school-age kids.* GST-applicable expenditure: roughly S$6,500 per month. Two adults plus two kids in school, enrichment, weekend activities, a car, family travel once or twice a year.
- At 9%: S$585/month → S$7,020/year
- At 7%: S$455/month → S$5,460/year
- Additional cost: about S$1,560/year
Two things to notice about these numbers. First, the proportional hit is the same (GST is flat) — 2/107 of the pre-hike total, no matter the income band. Second, the absolute hit scales with consumption, not with income. Two households with identical incomes but different savings rates pay different amounts of GST. The frugal one pays less.
What's not subject to GST
It's worth being precise here because a lot of household budgets *look* expensive but include big chunks of GST-exempt spending.
- Residential rent and residential property sales — the largest single category. Your S$3,500 condo rent attracts no GST. Your HDB resale doesn't either.
- Most financial services — savings account interest, life insurance premiums, equity trades themselves (though the brokerage commission may be GST-applicable).
- Healthcare — subsidised polyclinic and public hospital channels, and certain MOH-mandated categories, are zero-rated or out-of-scope. Private GP and specialist visits *are* GST-applicable.
- Education at MOE-mandated levels — primary, secondary, JC, ITE, polytechnic, and university tuition at the mandated tiers. Enrichment, tuition centres, and music schools are typically GST-applicable.
- Locally consumed services from below-threshold sellers — a small home-based seller below the S$1M registration threshold doesn't charge GST.
This is why "we spend S$10,000 a month" doesn't mean "we pay S$900 in GST per month". The GST-applicable slice is usually 30–50% of total spend for a middle-class household, sometimes lower if rent and mortgage are dominant.
What the offsets actually return
The Assurance Package and permanent GST Voucher framework do real work, but it's worth being honest about who they cover and who they don't.
For the 2025–26 tranche (subject to the usual annual updates from MOF), a household near the bottom of the income distribution receives roughly:
- CDC Vouchers: S$300 per household per year, redeemable at participating heartland and supermarket merchants
- Cash GST Voucher: S$450–700, means-tested by income and Annual Value of residence
- U-Save rebates: S$400–950 for HDB households on utilities, paid quarterly through SP Group bills
- MediSave top-up: S$150–450 for older eligible adults
A household near Household A's profile, if it qualifies on the means-tested components, can comfortably receive S$1,200–1,800 in offsets — more than the S$576 of additional GST cost. The offset structure is genuinely redistributive at the bottom.
A household near Household B's profile receives the CDC Vouchers and possibly part of the U-Save (if HDB), but is usually outside the cash GST Voucher band. Offsets net out closer to S$300–500 per year — meaningful, but not full compensation for the S$960 extra.
A household near Household C's profile may be outside several of the means-tested bands depending on Annual Value. The CDC Vouchers still apply universally, but most other offsets do not.
The compounding effect on small recurring expenses
The line items where the hike is psychologically invisible — and adds up — are the small recurring ones.
- A S$5 daily lunch costs you S$0.10 more in GST per day at 9% vs 7%. Over a working year (220 days), that's S$22.
- A S$60/month mobile bill costs you S$1.20 more per month → S$14.40/year.
- A S$15 weekly food delivery costs you S$0.30 more per delivery → S$15.60/year.
- A S$200 monthly grocery shop costs you S$4 more per month → S$48/year.
None of these are large in isolation. They aggregate quietly.
What this means in practice
For most people I know, the honest answer to "what should I do about GST?" is *not very much*. The hike is structural, the offsets exist, and discretionary cost-cutting saves more than tax-optimising a flat consumption tax.
Two practical adjustments are worth the effort:
- Claim what you're entitled to. If you qualify for the cash GST Voucher, U-Save, MediSave top-up, or CDC Vouchers, claim them. Some Singaporeans let CDC Vouchers expire each tranche.
- Watch the recurring small charges. Subscriptions, app-based deliveries, and convenience purchases have the highest GST friction relative to value. Cancelling one unused S$15/month subscription saves you more in a year (S$180) than the GST hike costs on roughly S$2,000 of additional grocery spend.
An honest take
GST at 9% is not the cost-of-living story most households feel most acutely — rent, mortgage, school fees, childcare, and car ownership move the needle far more. But the hike is real, the arithmetic is what it is, and the offsets help the bottom third meaningfully more than they help the middle. The policy framing of "broadly cost-neutral after offsets" is roughly true at the bottom, partly true at the middle, and not really true at the top — which is the policy intent. It's worth understanding the actual numbers rather than the headline.
The figures above are illustrative. Your household's GST-applicable spend depends on how much of your budget goes to rent vs other categories. The IRAS website lists exempt and zero-rated items in full, and the official MOF Budget pages publish the year's CDC Voucher and Assurance Package values. Both are worth a bookmark.
*This piece is not financial advice. The illustrative figures are stylised for clarity and do not reflect any specific household.*
