Ask what an office costs and you will hear a psf rent. Sign the lease and you will discover the rest: a three-month deposit, stamp duty, two sets of legal fees, a fit-out that can exceed a year's rent, GST on everything, and a reinstatement bill waiting quietly at the end of the term. None of it is hidden, exactly — it is just never on the brochure.
This is the complete map of what leasing an office in Singapore actually costs in 2026, in the order you will pay it: upfront, monthly, and at exit. It ends with a worked example for a 5,000 sq ft office that shows why a "$10 psf" lease really runs closer to $15 psf once everything is counted. For what the rent itself should be in each district, start with our district-by-district rent breakdown; this guide covers everything that sits on top of it.
First, the Right Way to Think About It
Professionals budget offices as total occupancy cost: every dollar the lease causes, upfront payments amortised over the term, exit costs included. Two offices at identical psf rents can differ by hundreds of thousands of dollars in total occupancy cost — a fitted unit versus a bare shell, a generous rent-free period versus none, a light reinstatement scope versus a heavy one. Comparing quotes on the psf number alone is how tenants end up choosing the more expensive office while believing they chose the cheaper one.
Upfront Costs: What You Pay Before Day One
Security deposit — 3 months' gross rent
The Singapore standard is three months' gross rent, paid on or before signing. On a 5,000 sq ft office at $10 psf, that is $150,000 out of the bank before you own a single chair. Tenants with strong covenants sometimes negotiate two months; newer entities are sometimes asked for more. A banker's guarantee can replace the cash deposit — you pay the bank roughly 1.5–2% per annum of the guaranteed amount, which frees the capital for the business.
Stamp duty — 0.4% of the total rent
Payable to IRAS within 14 days of signing, calculated at 0.4% of the total rent across the lease term. A three-year lease at $50,000 a month: $50,000 × 36 × 0.4% = $7,200, paid by the tenant. Miss the deadline and penalties apply — this one is administrative, but it is real money and it is yours to pay.
Legal fees — both sides, usually
Market practice in Singapore has the tenant covering the landlord's legal costs for preparing the tenancy agreement ($2,500–$5,000), plus your own lawyer's review ($2,000–$4,000). Skipping your own review to save $3,000 on a million-dollar commitment is a false economy — the clauses that cost tenants real money (reinstatement scope, service-charge escalations, renewal terms) are exactly the ones a commercial lease lawyer catches. Our office lease agreement guide walks through every clause worth reading twice.
Fit-out — the biggest variable of all
Fit-out is routinely the largest single cost after rent itself: $50–$70 psf for a functional basic build, $80–$120 psf for the mid-range where most projects land, and $130–$180+ psf for premium. Add $15–$30 psf for IT infrastructure and $20–$40 psf for furniture. The building will also want its own pound of flesh — a refundable renovation deposit ($5,000–$20,000) and an administration fee ($2,000–$5,000). Full tier-by-tier detail, and the ways to spend less, are in our fit-out cost guide; taking over an outgoing tenant's fit-out or a landlord-fitted suite can cut $30–$50 psf off this line.
Monthly Costs: The Recurring Bill
Gross rent and service charge
Most Singapore office rents are quoted gross — base rent plus service charge (building maintenance, security, common-area air-conditioning and upkeep) in one psf figure. Always confirm this in writing, and check whether the service-charge component can be revised mid-term; in some buildings it can, which quietly moves your "fixed" rent.
GST — 9% on everything
Rent, service charge and most lease-related charges attract GST at 9%. GST-registered businesses claim it back, but it still flows through your cash position every month — on a $50,000 rent that is $4,500 a month fronted to IRAS.
After-hours air-conditioning
Standard building air-conditioning runs roughly 8am–6pm on weekdays. Outside those hours you pay per use — typically $80–$150 per hour depending on the building. A team that works late three evenings a week can add $2,000–$4,000 a month without anyone noticing until the first quarter's invoices arrive. Both the rate and minimum booking blocks are negotiable at lease signing; they rarely are afterwards.
Car parking
CBD season parking runs $250–$600 per lot per month, with reserved lots at the top of the range. Buildings ration lots by floor area leased, so confirm your allocation early if driving matters to your team — and ask for lots (or locked rates) as part of the deal package.
Utilities and insurance
Electricity within your premises, telecoms, contents insurance and public-liability cover (usually required by the lease at $1–2 million) together typically add $1.50–$3 psf a month depending on density and usage.
The Worked Example: 5,000 sq ft at "$10 psf"
| Item | Amount | When |
|---|---|---|
| Security deposit (3 months) | $150,000 | Upfront (refundable) |
| Stamp duty (0.4% × 36 mths) | $7,200 | Upfront |
| Legal fees (both sides) | ~$6,000 | Upfront |
| Fit-out, mid-range ($100 psf) | $500,000 | Upfront |
| IT + furniture ($50 psf) | $250,000 | Upfront |
| Rent, 36 months | $1,800,000 | Monthly |
| Parking, utilities, after-hours AC (est.) | ~$150,000 | Monthly |
| Reinstatement ($20 psf) | $100,000 | At exit |
Total three-year occupancy cost, excluding the refundable deposit: roughly $2.81 million — an effective $15.60 psf per month against the $10 psf on the brochure. The rent was 64% of the true cost. This is why a two-month rent-free period ($100,000 here) or a fit-out takeover ($150,000–$250,000 saved) moves the real number far more than a $0.20 psf discount ever could — and why the package, not the headline, is where office rent negotiation pays off in 2026.
End of Lease: The Bill Nobody Budgets
Reinstatement is the standing surprise of Singapore leasing. Your lease will almost certainly require the premises returned to the landlord's bare original condition — partitions out, flooring up, ceiling reinstated, services capped. The obligation is fixed in practically every institutional lease; it is rarely waived and rarely capped, so treat advice to "negotiate a waiver" with scepticism. Budget $10–$30 psf, and protect yourself where the real leverage is: pin the exact reinstatement scope in the lease, and commission a contractor's pre-condition survey at handover so you cannot be charged for defects or works that pre-date your tenancy. Your deposit is released only after the landlord accepts the reinstated premises — build the timing into your relocation plan, because that $150,000 typically comes back one to two months after you have already paid the deposit on your next office.
Every year I meet tenants shocked by a six-figure reinstatement quote in the final months of their lease. The number was knowable on day one — it just was never asked for. Get the reinstatement scope and a pre-condition survey into the lease file at the start, and the end of the lease becomes arithmetic instead of a dispute.
— Jeremy Lim, Founder & Director, SparkSpace Singapore
The Pre-Signing Checklist
- Model total occupancy cost for each shortlisted option — never compare on psf alone
- Confirm what the gross rent includes, and whether service charge can move mid-term
- Get the after-hours AC rate and parking terms into the letter of offer, not left to "building standard"
- Pin the reinstatement scope and commission a pre-condition survey at handover
- Ask about fitted units and takeovers before budgeting a full fit-out
- Use a banker's guarantee if $150,000 of idle deposit hurts your working capital
- Size the space properly first — our space calculator converts headcount to square feet in under a minute
One line item you will not find above: agency fees. In Singapore commercial leasing the landlord pays the commission, so professional tenant representation costs the tenant nothing — the rare free lunch in this list, and the one that tends to pay for all the others.
Frequently Asked Questions
How much cash do I need upfront to lease an office in Singapore?
For a typical 5,000 sq ft office at $10 psf: about $150,000 security deposit (three months' gross rent, refundable), $7,200 stamp duty, roughly $6,000 in legal fees, and $500,000–$750,000 for a mid-range fit-out with IT and furniture. Smaller fitted units need far less — the deposit and stamp duty scale with rent, and a fitted suite can remove most of the fit-out line.
Who pays the agent when leasing an office in Singapore?
The landlord. Agency commission in Singapore commercial leasing is paid by the landlord, so tenant representation is free to the tenant. Since the landlord's side is always professionally represented, going unrepresented saves you nothing and costs you market intelligence at every negotiation point.
How is stamp duty calculated on an office lease?
At 0.4% of the total rent across the lease term, payable by the tenant to IRAS within 14 days of signing. A three-year lease at $50,000 a month works out to $50,000 × 36 × 0.4% = $7,200. Late payment attracts penalties, so it belongs on the completion checklist.
How much does reinstatement cost at the end of an office lease?
Typically $10–$30 psf — $50,000–$150,000 on a 5,000 sq ft office. Singapore leases almost always require reinstatement to the landlord's bare original condition, and the obligation is rarely waived or capped. Protect yourself by pinning the exact scope in the lease and commissioning a pre-condition survey at handover, so you only pay to undo your own works.
Is the security deposit refundable, and when do I get it back?
Yes — it is refundable, less any amounts the landlord properly deducts for unpaid charges or incomplete reinstatement. Release typically happens one to two months after the landlord accepts the reinstated premises, which means it comes back after you have paid the deposit on your next office. Plan the cash-flow bridge, or use a banker's guarantee to avoid parking the cash at all.
Buildings Where the Numbers Work
Four buildings across the price spectrum where we currently see strong total-occupancy-cost value — including fitted options that remove most of the upfront fit-out bill. Live asking rents, floor plans and availability on each profile.
Want a Total-Cost Model for Your Shortlist?
Send us your headcount and budget — we'll shortlist options and build a side-by-side total occupancy cost comparison, including fit-out, incentives and reinstatement, so you compare real numbers. Free for tenants.
Sources: SparkSpace advisory data (tenant engagements 2016–2026), IRAS lease stamp duty schedule, SparkSpace listings database asking rents as at July 2026. Figures are indicative 2026 ranges in S$ and vary by building, covenant and specification; worked example is illustrative.