Hourly rate or monthly retainer: which model suits you

You get 2 quotes from 2 Adelaide coaches. The first says $250 an hour. The second says $2,200 a month. You've got a spreadsheet open and no way to compare them, so you do the obvious thing: divide the retainer by the hours you'd get and see which is cheaper.

That sum is the single most common mistake owners make when buying coaching, and it reliably produces the wrong answer. This post explains why, and which model actually suits which situation. If you're earlier in the process than this, how to find a business coach in Adelaide covers the whole search in order.

All figures below are ex GST, Adelaide, checked September 2026.

The 2 models, in plain terms

Hourly. You pay for time you book. A session happens when you organise one. Nothing recurs, nothing is committed, and the coach's preparation is either thin or unpaid. Adelaide hourly bands run $110 to $180 for a newer or entry coach, $180 to $280 for an established generalist, $280 to $450 for a senior or industry specialist, and $400 to $900 at executive level. Those are the ranges I see advertised in Adelaide, ex GST.

Monthly retainer. You pay a fixed monthly fee for an arrangement rather than for time. It carries a set cadence (weekly, fortnightly or monthly), plus everything around the sessions. Adelaide retainer bands run $800 to $1,500 a month for light touch, $1,500 to $2,800 for a standard fortnightly arrangement, $2,800 to $4,500 for weekly, and $5,000 to $9,000 and above at executive level.

The distinction that matters isn't the billing unit. It's that hourly buys you a conversation and a retainer buys you an obligation, and for most owners the obligation is the part doing the work.

The retainer rule: it isn't hours multiplied by a rate

Here's the arithmetic that trips people up. A $2,200 a month retainer ex GST with 2 sessions of 90 minutes gives you 3 hours of face time. Divide, and you get an hourly figure well over $700, which looks indefensible next to the $250 an hour the other coach quoted.

It isn't a like-for-like comparison, because the sessions aren't the product. A monthly retainer runs at roughly 3.5 times raw session time. The extra sits in 4 places:

• Preparation before each session. Reading your numbers, your notes and what happened since last time, before the meeting rather than during it.
• Access between sessions. A short call or an email when something breaks on a Tuesday, which is when things break.
• Materials. Templates, structures and worked frameworks that would otherwise be built in your session time.
• Accountability. Somebody holding the list of what you said you'd do and asking about it out loud, which is the part nobody wants and the part that changes outcomes.

Pricing a retainer by multiplying session hours by an hourly rate under-quotes the real thing by roughly 2 thirds. That's why an owner who builds their own estimate that way walks into every proposal feeling overcharged, and why a coach who prices that way quietly goes broke or quietly stops preparing.

When hourly is genuinely the better buy

Hourly isn't the cheap option. It's the right option in 4 situations.

You have a specific, bounded question. You want a second opinion on a pricing decision or a hiring decision, not an ongoing relationship. Buy 2 hours, get the thinking, leave.

You're testing the fit. A paid single session before any ongoing arrangement is a completely normal request, and a coach who refuses one is telling you something.

Your cash position won't carry a monthly commitment yet. An hourly arrangement you can actually pay for beats a retainer you'll cancel in month 2 under duress.

The work is genuinely episodic. Some owners want a sounding board 4 times a year around planning cycles. That's an hourly relationship and there's nothing second-rate about it.

When a retainer earns its price

A retainer is worth it when your problem is execution rather than information.

If you already know what needs doing and it keeps sliding, buying more hours of advice solves nothing. What changes the pattern is a fixed appointment you didn't choose to make this week, with somebody who read the last set of numbers and remembers what you promised a fortnight ago. That's structurally hard to buy by the hour, because the hour only exists if you book it, and the fortnight you most need it is the fortnight you won't.

Retainers also suit a business in motion. A first hire, a second location, a price rise going out to 200 customers, a plateau that's held for 3 years. Those play out over months, not in a session, and the between-session access is doing real work in the gaps.

There's a practical test for this. Look back at the last 3 things you decided to change in the business and ask honestly how many of them actually happened. If the answer is most of them, you probably don't need a retainer and hourly will serve you well. If the answer is none of them, more information isn't the missing ingredient and buying it by the hour won't help.

The counterweight is the commitment. A monthly fee is a fixed cost in a business with variable revenue, and it's worth checking what happens if you need to pause. Lock-in contracts and rolling 30-day terms covers what's reasonable to accept there. The market in Adelaide has moved towards rolling 30-day terms, and a 12-month upfront lock-in is widely treated as a buyer red flag.

Making 2 quotes comparable

Convert everything to a monthly figure ex GST, then ask the same 5 questions of both coaches.

1. What's the cadence, and is it fixed? "Fortnightly" and "roughly twice a month when it suits" are different products.
2. How long is a session, and where? 60 minutes by video and 2 hours at your site are not the same commitment on either side.
3. What happens between sessions? Ask specifically: can you email, will you get a reply, and is a short call included or billed.
4. Who prepares, and when? A coach who reads your numbers the night before turns up with questions. A coach who reads them in the room spends your session catching up.
5. What's the term, and what changes after 6 months? Including whether the fee moves.

The answers, not the headline figures, are what make the 2 quotes comparable. What drives the number in the first place is covered in what a business coach costs in Adelaide, with worked examples at 3 business sizes.

There's also a middle path that doesn't get offered often enough, so ask for it directly: a paid single session first, then a retainer if the fit is right. It costs you an hour or 2 at the published hourly bands, ex GST, to find out how somebody actually works, and it costs the coach nothing except the chance to sell a 6-month arrangement to a client who wasn't suited to them. A coach who won't do that under any circumstances is telling you something about how they sell.

Modelling the number before you commit

If you'd rather see the shape of the spend before you talk to anybody, the coaching cost calculator takes a format, a cadence and a level of seniority and returns the indicative Adelaide band, ex GST.

It's a lookup against the published bands, not an hours times a rate sum, and it deliberately shows you what that sum would have produced so you can see the size of the gap. It won't tell you what a specific coach will quote, because it can't. It will tell you whether the number you've been quoted sits inside the market or outside it.

And if the monthly figure is beyond what the business can carry right now, that's worth knowing before the call rather than after. Group coaching runs at roughly 22% to 30% of the equivalent 1-to-1 retainer, and 1-to-1 against group coaching sets out what you give up at that price and what you don't.