How legal fees work in WA: billing types and reading a costs agreement
By Mei Nair · Updated 2026-07-09
Legal fees confuse people not because the concept is complicated, but because the terminology and billing structures vary so much between matter types and firms. Understanding the basic categories makes it much easier to compare quotes and spot something that doesn’t add up.
The main ways lawyers charge
- Hourly billing. The most common structure for matters where the amount of work isn’t known upfront, like contested litigation. You’re billed for time actually spent, usually in increments.
- Fixed fee. A set price for a defined piece of work, common for straightforward, well-scoped tasks like an uncontested divorce application, a simple will, or a standard conveyance.
- No win, no fee (contingency). Common in personal injury and some compensation matters. The lawyer is paid a fee, often calculated as a percentage of any settlement, only if the matter succeeds.
- Retainer. An upfront amount held on account, drawn down as work is completed, common for ongoing business or commercial legal relationships.
Comparing the main billing types
| Billing type | How it works | Best suited to |
|---|---|---|
| Hourly | Charged per hour or fraction of an hour worked | Matters with an uncertain scope, like litigation |
| Fixed fee | One agreed price for defined work | Simple, well-defined tasks like a standard will or conveyance |
| No win, no fee | Paid from a settlement if successful, little or nothing upfront | Personal injury and some compensation claims |
| Retainer | Upfront amount drawn down as work is done | Ongoing or business legal relationships |
What a proper costs agreement should include
A costs agreement is the written document that sets out how you’ll be charged. It should clearly state the billing method, the hourly rate if applicable, an estimate of likely total cost, what disbursements might apply, and what happens if the scope of work changes. If a costs agreement is vague on any of these, ask for clarification before signing.

Fees vs disbursements: don’t confuse the two
A quoted legal fee often doesn’t include disbursements, the separate costs a lawyer pays on your behalf and passes on to you, such as court filing fees, medical report fees, or barrister costs for a court appearance. A fee that looks low compared to a competitor’s quote might simply be excluding disbursements that the other quote includes. Always ask whether a figure is inclusive of disbursements.
Comparing quotes between firms
A lower headline number isn’t always the better deal. When comparing quotes, check whether each one includes GST, whether disbursements are quoted separately or bundled in, and whether the scope of work described is actually the same between firms. Two quotes for what looks like the same job can cover meaningfully different amounts of work, which only becomes clear once you ask each firm to spell out exactly what’s included.
Reading between the lines of an estimate
An estimate is not a guarantee, and reasonable lawyers will tell you that directly. What matters is whether they explain what would cause the final cost to move away from the estimate, and by roughly how much. A lawyer who gives a confident, unqualified number for a matter with an uncertain scope, like contested litigation, is either being unrealistic or leaving out important caveats.
Payment plans and staged billing
If a full-fee arrangement isn’t realistic for your budget, ask directly whether the firm offers payment plans or can break the matter into stages billed separately, such as an initial letter or document review priced on its own before committing to the full scope. Not every firm offers this, but many are willing to discuss it if you raise it early rather than after work has already begun.
If a bill surprises you
If an invoice comes in higher than expected, ask for an itemised breakdown before paying it. Most firms have a process for reviewing a disputed bill, and the Legal Profession Complaints Committee in WA can assist if a billing dispute can’t be resolved directly with the firm.
Understanding these basics before your first meeting puts you in a much stronger position to compare quotes and ask the right questions. This is general information about how legal fees typically work in WA, not advice on your specific matter. Explore the Perth Legal Guide homepage to compare lawyers by practice area, and see how firms are ranked in our methodology.
FAQ
- Am I entitled to a written costs estimate?
- Yes, in most circumstances. Western Australian lawyers are generally required to give clients written information about costs, including an estimate, before significant work begins. If you haven't been given anything in writing, it's reasonable to ask for it directly.
- What's the difference between legal fees and disbursements?
- Legal fees are what you pay the lawyer for their time and advice. Disbursements are separate out-of-pocket costs the lawyer pays on your behalf, such as court filing fees, search fees, or barrister costs, and are usually passed on to you in addition to the fee.
- Can a lawyer change the fee after giving me an estimate?
- An estimate can change if the scope of work changes or the matter becomes more complex than first expected, but you should be told about this as it happens, not surprised by it in a final invoice. A significant change to cost should generally be communicated in writing.
- What should I do if I don't understand my invoice?
- Ask for a breakdown. A reasonable lawyer will explain what time was spent on and why, and most costs agreements set out a process for querying a bill you don't understand.