Who signs off marketing spend in a mid sized Singapore company, and the four documents that let them

In a mid sized Singapore company the signature usually belongs to the finance head for recurring spend and to the managing director or the board for anything with a term attached, and no public rule sets the line. Singapore publishes procurement thresholds for its own public sector and publishes nothing equivalent for private companies, so the threshold inside your buyer's company is a delegation written in its own constitution and approval matrix, which you will not find online and should simply ask for. What is published, in full, is the paperwork. IRAS sets out exactly what a tax invoice must show before anybody can process it, and four documents between them unblock almost every stalled marketing approval in this market. The signature is rarely the obstacle. The missing document is.

Nothing on this page is legal or tax advice. The IRAS and government wording below is quoted rather than summarised, and a question about your own company's authority or tax position belongs with your own accountant or corporate secretary.

Document one, a quotation an approver can convert into a cash outflow

The person signing is not evaluating your marketing. They are answering whether this is a known, bounded amount that can be released on a date. A quotation that cannot be read that way sits in a queue, and nobody tells you why.

Four lines make it readable. The fee and the unit it is charged on, stated separately from any media or platform spend. Whether the 9 per cent GST is inside the figure or on top of it. The term, including any minimum commitment, because a monthly figure with a six month commitment is a different approval. And the notice period, which is the only line that tells an approver what the downside looks like. IRAS publishes that "The current GST rate is 9%" and that a business "must register for GST when your taxable turnover exceeds $1 million", read on iras.gov.sg on 28 October 2026.

Where published Singapore supplier figures are quoted as "plus ad spend", which several are, that phrasing is doing the approver a favour: it keeps the fee and the media as two numbers and lets finance release them on different cycles.

Document two, an invoice that satisfies IRAS, which is not negotiable

This is the document that stops payments, and it stops them after everyone has already agreed. Read on iras.gov.sg on 28 October 2026, IRAS states that a tax invoice must show the following on a single document:

• The title "Tax Invoice" in a prominent place
• Your business name and address
• Your GST registration number
• The date the invoice was issued
• A unique invoice reference number
• The customer's name and address
• A description of the goods or services supplied
• The GST rate applied
• The total payable excluding GST, the GST amount, and the total payable including GST

If the supply is zero rated, IRAS states the invoice must also say that GST is charged at 0 per cent. A shorter form is allowed only for small amounts: IRAS permits a simplified tax invoice where the total amount payable including GST "does not exceed $1,000". Almost no marketing engagement in this market falls under that limit, so almost every marketing invoice needs the full list above.

Read that list as a seller and one thing becomes obvious. Several items on it are about identity rather than money, and an invoice that names a slightly different entity from the one on the contract will be returned by a finance team that is doing its job properly.

Document three, proof of who is actually being paid

Two pieces of evidence settle this and both are cheap. The supplier's ACRA business profile, with the entity name exactly as it will appear on the invoice, and the supplier's GST registration number as a number rather than as a sentence saying it is registered. ACRA, read on acra.gov.sg on 28 October 2026, identifies itself as the Accounting and Corporate Regulatory Authority, publishes how to buy "information products and business reports from ACRA", and carries an announcement about simplified free business profile downloads. The page we read listed no fee figure for those products.

This is also where a cross border engagement is decided rather than where it is discussed. Whether a Singapore buyer needs a local entity and a Singapore dollar invoice at all, and what the GST line actually settles, is answered in our page on whether a Singapore buyer needs a local entity and a Singapore dollar invoice. The fuller evidence pack a Singapore procurement process asks a marketing supplier for, and which parts are worth preparing once, is in the evidence a Singapore procurement process asks for.

Document four, the grant paper, when a grant is in play

A subsidised project has a second approver and a different sequence, and the figures are published. Read on enterprisesg.gov.sg on 28 October 2026, the EDGE Grant states "Receive up to 70% for SMEs and up to 50% for non-SMEs", adds that "Support levels differ by activity", caps support at "up to S$100,000 in total grant support per year, across all activities" with the cap resetting on 1 April each year, and states that "EDG, MRA and PSG ceased on 29 September 2026", with ongoing submissions under those schemes still being processed.

Two details change who signs and when. The grant is paid as a reimbursement: "Claims can be submitted once the activity is completed and full payment has been made." So the company has to fund the whole amount first, which makes it a cash flow approval rather than a discount, and the person who signs is usually the one who cares about that distinction. And the applicant is the buyer rather than the supplier: OOm's own FAQ, read on oom.com.sg on 28 October 2026, says it handles grant aligned scoping and the quotation while businesses submit their own applications through the Business Grants Portal. A supplier saying it will get you a grant has described a scope, not a submission.

The three thresholds that decide whose signature you need, and only one is published

Singapore publishes a precise approval ladder for one kind of buyer and nothing for the other, and knowing which you are dealing with saves a fortnight.

Threshold	What is published
Public sector procurement value	Read on mof.gov.sg on 28 October 2026: "Small Value Purchases (SVP)" apply to an "Estimated procurement value: Not exceeding S$6,000"; "Quotation" to a value "Not exceeding S$90,000"; and "Tender" where the value is "more than S$90,000". MOF also states that it publishes "all requirements, procedures, and evaluation criteria on GeBIZ so suppliers clearly understand what is needed and how bids will be assessed"
Private company approval limit	Nothing. There is no published Singapore threshold for marketing spend in a private company, because the authority comes from that company's own delegation rather than from a rule a supplier can look up
The term, rather than the amount	Nothing published, and in practice this is the one that escalates a decision. A S$3,000 monthly fee is often a manager's call. The same fee with a six month commitment is a S$18,000 commitment and frequently is not

The practical consequence for a seller is a single question, asked early and without embarrassment: who signs this, and is there a value or a term above which somebody else has to? Buyers answer it readily. Sellers rarely ask, and then spend three weeks guessing which reader the proposal failed with. The stages that question sits inside are mapped in our page on how a Singapore company chooses a marketing supplier step by step.

What the assistants answered, and the hosts they answered from

The instrument here is saved assistant answers rather than Search Console or a keyword tool, and no search volume exists for this question. The set holds 64 blind pipelines across 32 batches put to ChatGPT and Gemini on 26 October 2026, with Singapore written into the text of every question, because the interface we query accepts country, language and location parameters, answers HTTP 200 to each and acts on none of them.

"Who signs off marketing spend in a mid-sized Singaporean company?" produced two readings, one per engine, and neither named a vendor. The citation set is the striking part. Of 20 hosts, five were Singapore government domains: mof.gov.sg, gebiz.gov.sg, acra.gov.sg, iras.gov.sg and imda.gov.sg, with vendors.gov.sg also appearing. The engines answered a question about a private company largely out of public sector procurement material, which is a reasonable thing for a machine to do when the private sector publishes nothing and the government publishes a complete ladder. It is also why an answer taken from an assistant on this question will tend to describe a tender process your buyer does not run.

For completeness, one of those hosts could not be read for this page. vendors.gov.sg returned HTTP 403 on 28 October 2026, so nothing was served and no claim is made here about its contents.

Questions about marketing spend approval in a Singapore company

Who should a supplier send the proposal to first?

The person who wants the work, and then ask them who signs. A proposal routed straight to finance arrives without the argument that justifies it, and a proposal that never reaches finance arrives without the numbers it needs.

Does a recurring retainer get approved differently from a project?

Usually yes, because a retainer with a notice period is a committed outflow and a project is a one off. State the notice period in the quotation rather than in the contract annexe, and the approval becomes a smaller decision than it looks.

What is the single most common reason a Singapore marketing invoice is not paid on time?

An invoice that does not carry everything IRAS lists, most often a missing GST registration number or an entity name that does not match the contract. The simplified form is only permitted where the total including GST "does not exceed $1,000", read 28 October 2026, so the full list applies to nearly every marketing invoice.

Do Singapore government procurement thresholds apply to private companies?

No. They govern public sector buying, and MOF publishes them at S$6,000 and S$90,000, read 28 October 2026. Private companies frequently borrow similar bands for their own internal matrices, which is why the figures are worth knowing even when they do not bind your buyer.

Does a grant make approval easier or harder?

Easier to justify and harder to release, because the EDGE Grant is a reimbursement and claims can only be submitted "once the activity is completed and full payment has been made", read 28 October 2026. The company funds it first, so the approver you need is the one who manages cash rather than the one who manages marketing.

Should the proposal name the GST treatment?

Always, and on the first page. Two quotes at the same number are different prices if one includes the 9 per cent and the other does not, and the person comparing them will not assume in your favour.

The line that gets signed fastest, and why it is not the cheapest one

The marketing lines that clear approval quickest in Singapore are the ones whose result can be checked by somebody who does not do marketing. A feed that either validates or does not. An invoice that either matches the contract or does not. A dated reading of what search results and AI assistants currently say about your category, taken before the spend and again ninety days later, which either moved or did not. That last one is what we sell, and the criterion to judge us on is whether we publish the result when it is unflattering. In this batch of the Singapore readings on 26 October 2026 the engines named no vendor at all, and across the whole blind set our domain was cited in 4 readings and our name appeared in the answer prose of none, where HubSpot was named in 13 readings and cited in 5. That split is the opposite shape to ours, and being named is the half that gets a supplier onto an approval paper, so a rival beats us squarely on the measure that matters to a buyer here. The free scan at aiknowsus.com produces the baseline reading at no cost, which makes it an unusually easy line to put in front of a finance head: there is nothing to approve until you have seen the answer.