Retainer or Project Work: Which Is Actually Easier to Sell

Neither is reliably easier. The shape that closes faster is the one that fits money the buyer has already approved — which is why a larger retainer inside an existing monthly line often beats a smaller one-off project. Commonwealth procurement publishes the effect: an engagement whose maximum value cannot be estimated is treated as above the $125,000 non-corporate threshold.

At a glance

• The question that decides it is not price, it is approval path. Count the people who must say yes, not the dollars.
• Corporate buyers: a retainer that fits an existing recurring line can be signed by one person. A project that creates a new cost usually cannot.
• Government buyers: the reverse. Under the Commonwealth Procurement Rules (17 November 2025), an uncapped engagement is treated as above threshold (rule 9.6), and an open tender must allow at least 25 days for submissions (rule 10.22).
• Signature floor formula: (approval events − 1) × approval cadence + any mandated waiting period.
• Third shape: performance-linked fees, which move the cost out of a fixed budget line and into cost of sale.

The Budget Line Test: three questions that decide the shape before you pitch

Before you choose between a retainer and a project, answer three questions about the buyer’s money. This is the Budget Line Test, and it takes about four minutes on a discovery call.

1. Does a line already exist that this can be charged to? An underspent agency, training or advisory line is pre-approved money. New money is not.
2. Does the total contract value cross a published or internal threshold? Thresholds trigger extra approvers, and every approver is calendar time.
3. Can the buyer state the maximum total value themselves? If they cannot, procurement will assume the worst case, and so will their CFO.

Sell the shape that answers yes, no, yes. A consultant who runs the Budget Line Test before writing the proposal is choosing the shape against the approval path rather than against their own cash-flow preference, and those two answers are frequently opposite.

Why the bigger retainer often closes faster than the smaller project

The common belief is that a retainer is the harder ask because the number is open-ended. Inside a corporate buyer that is usually backwards. A monthly fee charged against a line that already carries monthly spend is a substitution decision, and substitutions are made by the person who owns the line. A one-off project of half the annual value is a new cost, and new costs travel upward.

So the same buyer can approve $8,000 a month without leaving their own desk and be unable to approve a $60,000 project without three signatures. The deciding variable is whether the money is already committed, not how much of it there is.

The exception is the buyer whose recurring lines are already fully committed, or who is inside an annual budget freeze. There, the retainer has no home and the project — if it can be attached to a named initiative that already has funding — is the faster ask.

Shape by buyer: approvals, calendar floor and what kills each one

The calendar column below is a floor derived from the approval structure, not a measured benchmark. We do not publish average time-to-signature for consulting contracts because we have no dataset for it; what is computable is the minimum time an approval path can take.

The row that surprises most consultants is the fifth: with a government buyer, the retainer is the harder sale precisely because it is open-ended, and a capped project below the threshold is the easier one.

How to work out your own signature floor

Signature floor = (approval events − 1) × approval cadence + any mandated waiting period. Approval cadence is how often the slowest approving body actually meets. Worked end to end below, using illustrative fees for an engagement of your own — they are placeholders for your numbers, not anyone’s rate card, and you should replace them with your buyer’s real ones:

• Project, $60,000, mid-market firm. Sponsor’s delegation is $25,000, so the path is sponsor → finance → exec committee. Three events. The exec committee meets monthly, so cadence is 30 days. Floor = (3 − 1) × 30 = 60 days, before any negotiation.
• Retainer, $8,000 a month, same firm, charged to an underspent agency line. One event. Floor = (1 − 1) × 30 = 0 days. The annual value is $96,000 — higher than the project — and it can be signed this week.
• Project, $130,000, Commonwealth non-corporate entity. Above the $125,000 threshold, so Division 2 of the CPRs applies; where the entity goes to open tender the submission window alone is at least 25 days (reducible to no less than 10 days only in the circumstances listed at rule 10.24). Floor = 25 days plus evaluation.

The floor is the honest number to give your own forecast, because it is the fastest the path can physically run. If your pipeline assumes faster than the floor, the forecast is wrong before anything else goes wrong. Consultants tracking this alongside proposal acceptance rate usually find the losses were never decisions — they were expired budget windows.

Should I put a marketing consultant retainer in front of this buyer?

“Marketing consultant retainer” is one of the shapes buyers search for by name, so the demand is real. It is the wrong ask in four specific situations, and each has a tell.

• No existing recurring line. Tell: they cannot name what they currently spend monthly on marketing help. Sell a scoped project first and convert on renewal.
• The buyer is not the line owner. Tell: they say “I’ll need to check with finance” about a monthly figure but not about a one-off.
• The engagement has a real end state. A brand reposition finishes. Selling it as a retainer invites a cancellation the moment it obviously has.
• Government or a regulated procurement. An uncapped monthly fee is the shape their rules handle worst.

Conversely, the retainer is the stronger ask when the work is genuinely continuous, when the buyer has an unspent line, and when the alternative is asking the same person for a new approval every quarter.

The third shape: performance-linked fees, and who they are wrong for

A performance-linked fee — paid per qualified meeting, per closed deal or as a share of measured revenue — is the third option, and it behaves differently on approval because it is not a fixed line at all. It is a variable cost of sale, which is the one category a revenue leader can usually approve alone. That is why performance structures often clear an approval path that both a retainer and a project would fail.

It is the wrong shape in three cases, and they are not marginal:

• The outcome cannot be defined tightly enough to count. If “qualified” is not written down with criteria, every invoice becomes an argument.
• Attribution is contested. Where the buyer has several channels touching the same deal, a revenue share is a dispute waiting for a quiet quarter.
• The buyer’s rules require a capped total. CPR 9.6 is the clearest published example: value that cannot be estimated over the contract’s duration is treated as above the threshold.

This is the shape LeadsNow runs in its own market — clients pay on booked qualified appointments rather than on a retainer or a seat count, against a record of 50,769+ AI-booked sales appointments since 2017 — and the same constraint applies to us: it only works where the outcome is countable and the attribution is not in dispute. If you are weighing it for your own consulting client acquisition, the test is whether you could invoice from a report the client already trusts.

What running this properly costs you

The method above is genuinely usable without buying anything. The costs are honest ones. Running the Budget Line Test needs discovery questions most consultants do not currently ask, and asking about delegation limits and budget cycles on a first call takes practice before it stops sounding like an audit. Maintaining the approval map means recording, per opportunity, the approvers, the cadence and the line the money comes from — roughly ten minutes per deal, in a CRM field that has to be enforced or it decays within a quarter. And the floor only helps if someone recalculates it when the buyer’s sponsor changes, which happens more often than anyone plans for.

At two or three live opportunities the whole thing fits in a notebook. Past roughly fifteen concurrent opportunities the manual version stops being maintained, which is the point at which either a system or another person has to carry it. The economics of that decision are the same arithmetic as cost per booked meeting for Australian consultants: what an hour of your own selling time is worth against what it costs to buy the same output.

Once you have chosen the shape, the number goes inside it — that is a separate exercise, covered in our guide to pricing a consulting engagement.

Frequently asked questions

Is a marketing consultant retainer harder to sell than a project?

Not inherently. It is harder when it creates a new recurring cost and easier when it substitutes for spend the buyer already has approved. The deciding factor is whether an existing budget line can absorb it, not the size of the monthly figure.

What size engagement needs CFO approval?

In private firms it depends on internal delegation limits, which are rarely published. The nearest public benchmark is government: the Commonwealth Procurement Rules set a procurement threshold of $125,000 for non-corporate Commonwealth entities and $400,000 for prescribed corporate Commonwealth entities for non-construction procurement, per rule 9.7 of the Commonwealth Procurement Rules. The non-corporate threshold rose from $80,000 on 17 November 2025, as the Department of Finance announced.

How long does it take to sign government consulting work?

For a covered open tender, potential suppliers must be given at least 25 days from publication of the approach to market to lodge a submission, under rule 10.22 of the Commonwealth Procurement Rules. That can be shortened to no less than 10 days only in the specific circumstances at rule 10.24, and it is the submission window alone — evaluation, negotiation and execution sit on top of it.

Can I convert a project client onto a retainer?

The reliable moment is the final fortnight of the project, while the budget line is still open and the sponsor still has authority over it. Converting after the project closes means asking for new money, which restarts the approval path from the beginning.

Does a retainer actually close faster than a project?

Sometimes, and it is a function of the buyer rather than the shape. We do not publish measured time-to-signature figures for consulting contracts because we hold no dataset for it. What you can calculate is the floor: (approval events − 1) × approval cadence, plus any mandated waiting period.