Hourly vs fixed price: how to price your services

Hourly pricing bills the time the work takes and moves the risk of it taking longer onto the client. Fixed pricing bills an agreed amount for an agreed outcome and moves that risk onto you. Neither is better in general. The one that fits a particular job depends on how well the scope is defined, how much of the work is genuinely predictable, and how much you already know about that kind of job.

Underneath both sits the same number: the rate you have to earn for the year to work. Get that wrong and the choice of model only changes how quickly the shortfall arrives.

General information, not tax advice. The ATO is the authority - see ato.gov.au or ask a registered tax or BAS agent.

The two models

Hourly. You quote a rate, track the time, and bill what was worked. The client carries the risk of the job running long, which means they also carry an incentive to keep asking for more, unless the quote caps it. Your income is capped by hours available, so it grows only by raising the rate or working more.

Fixed price. You quote a number for a defined outcome and bill that number whether the work takes half the time you expected or twice. The client gets certainty, which is worth something to them and is frequently the reason a fixed quote wins against a cheaper hourly one. You keep the upside when you are efficient and wear the downside when you are not, which makes fixed pricing a bet on your own estimate.

business.gov.au’s guide to choosing a pricing strategy frames the decision more broadly. It sets out cost-plus pricing, where you calculate the total cost of making and supplying the service and add a mark-up or margin; going-rate pricing, where you price at or near the market leader and use competitor prices as a guide without copying them; and value-based pricing, where the price reflects the value the service gives the customer rather than only what it cost to deliver. Hourly and fixed are the billing structures those strategies get expressed in.

The floor underneath both

Whatever structure you bill in, there is a rate below which the year does not work. It is worth calculating once, because most rates that feel uncomfortably high turn out to be about right.

An illustration, not data. Every figure below is an assumption, not a benchmark. Assume a sole trader wants to draw $90,000 before income tax. Assume they work 46 weeks, leaving six weeks for leave and public holidays. Assume 30 working hours a week, of which 60% is billable, because quoting, invoicing, admin and chasing payment are not. That is 828 billable hours in the year. Assume business costs of $12,000 for insurance, software, accounting, phone and equipment, and assume they set aside $10,800 for super, which for a sole trader is a choice rather than a required contribution. The recovery required is $90,000 plus $12,000 plus $10,800, or $112,800, spread across 828 billable hours: about $136 an hour.

Two things about that number. It is a floor, not a price, and it says nothing about what the market will pay. And income tax comes out of the $90,000 rather than sitting on top of it, so the amount actually landing in a personal account is lower again, and part of it may be payable during the year rather than after it, which is the mechanism covered in PAYG instalments explained for sole traders.

Change any assumption and the floor moves, and the billable percentage moves it most, which is the argument for measuring it rather than hoping, as set out in tracking billable hours as a freelancer.

When hourly protects you

Hourly earns its keep wherever the scope cannot be pinned down.

Diagnostic work qualifies, because the size of the job is unknown until you are inside it. So does anything where the client controls the pace, or where the deliverable is defined by their reaction to it rather than by a specification. Open-ended revisions, ongoing maintenance, and jobs for a client who has not decided what they want are all cheaper to bill hourly than to guess at.

It is also the honest option when the work is new to you. A fixed quote on a job you have never done is a bet placed without knowing the odds: pad it enough to be safe and you lose the work, price it low and you regret winning it.

The cost of hourly is that it can make the client anxious. An open-ended rate with no ceiling reads as a blank cheque, which is why a capped estimate (“estimated 12 to 16 hours; I will come back to you before exceeding 16”) usually converts better than a rate alone while keeping the protection.

When fixed price earns more

Fixed pricing rewards repetition. Once you have done a job enough times to know its shape, your estimate gets reliable while your speed keeps improving, and the gap between the two is margin that hourly billing would have handed back to the client.

It also sells better where certainty is the thing being bought. A homeowner comparing three tradespeople, a small business buying a website, a client with a budget to get approved: all of them are choosing partly on knowing the final number. business.gov.au’s value-based framing is the useful one here, because the value of a defined outcome to the client rarely has much to do with how many hours it took you.

The condition is scope. A fixed price is only safe when what is included, and what is not, is written down in enough detail that both parties would read it the same way. Without that, fixed price is hourly work with the meter switched off.

The hybrid most experienced people end up with

Fixed for the defined work, hourly for everything beyond it.

The quote names a fixed price for a specific scope, then states an hourly rate that applies to variations, additional rounds, or anything not listed. That combination gives the client the certainty they wanted on the part that is knowable and gives you cover on the part that is not. It also changes the conversation about scope creep from an awkward negotiation into an administrative one, because the price of the extra work was agreed before anyone wanted it.

Say how variations get authorised as well as what they cost. A line stating that additional work is confirmed in writing before it starts is far easier to point at than a process invented mid-job. Deposits and progress payments sit alongside this, and their GST and invoicing consequences are in taking deposits, GST and invoicing.

Writing it into the quote, and changing it later

However you price, the quote has to be specific enough that the invoice is uncontroversial. For fixed work that means an itemised scope and an explicit list of exclusions. For hourly it means the rate, the rounding increment, the estimated range, and what happens when the range is exceeded. Both need validity dates and payment terms, and the rest of what makes a quote persuasive is in writing quotes that win work.

One legal point worth flagging without overstating it: statements about price are covered by Australian Consumer Law, and misleading or false representations about price can be a problem even where they were not intended as such. The ACCC’s guidance on advertising and selling is the place to start, and how it applies to particular wording in your own quotes is a question for a lawyer or your industry association rather than a general article.

On raising prices with existing clients, the mechanics matter more than the message. Give notice rather than surprising anyone on an invoice, apply the new rate from a stated date, and honour quotes already accepted at the old price. A short note naming the new rate and the date it starts tends to go through without incident; attaching a justification invites a negotiation that a plain number does not.

How Apsis helps

Apsis quotes are built from line items priced by hours and rate, with a default rate pulled from your settings or the client so it is not retyped for every line, and a fixed price goes in as a single line for the agreed scope. Invoices work the same way on quantity and unit price. Your ABN, trading name and payment terms are stored once and printed on every quote and invoice, so a quote is a complete document rather than a number in an email. When a quote is accepted it converts to an invoice with the same line items, so the thing you priced and the thing you billed cannot quietly diverge. The invoice list filters by status and flags anything overdue. Quotes, invoices and clients are on the free plan, which covers 5 clients and 20 invoices a month.