Costs Assessment: Prepare a Legal Bill Dispute

Identify the Costs Dispute and Assessment Route

Start with the bill, the person liable to pay it and the legal basis for that liability. Record the law practice’s legal name, client and any third-party payer. Identify where the work occurred and when instructions began.

A solicitor-client costs assessment concerns charges payable to the law practice for its services. Party-party assessment concerns costs recoverable between parties under an order. The costs recoverable from an opponent can differ from the amount the client owes their own solicitor.

Keep the retainer, disputed bill and any costs order together. An estimate helps explain what the client was told. Assessment of solicitors’ costs requires examination of the charged work and the applicable charging basis, including disclosure issues.

Where the client says the solicitor has overcharged them, convert that concern into identified objections. Record the disputed item, amount and reason, such as an incorrect rate or duplicated task. Avoid treating an allegation of excessive legal costs as a proved finding.

Put a proposal for legal costs negotiation in writing. Identify the bills covered, any reduction and how payments will be credited. An agreement to settle a bill requires its own terms. A complaint, negotiation or request for an explanation does not automatically extend an assessment deadline or stop recovery proceedings.

In NSW, the Office of the NSW Legal Services Commissioner’s complaint guidance distinguishes costs disputes from other complaints. Its ordinary costs-dispute period is 60 days after costs become payable. Where an itemised bill is requested, the stated period is 30 days after compliance. These periods differ from the assessment route.

If unpaid costs also prevent transfer of the file, address the solicitor’s lien separately while preserving assessment deadlines.

Check NSW and Supreme Court Procedure

NSW costs assessment runs through the Supreme Court’s Costs Assessment Section and court-appointed costs assessors. It is an administrative assessment on written material. The Supreme Court label does not make it a national process or require an ordinary trial of every disputed bill.

The framework includes the Legal Profession Uniform Law (NSW), its Application Act 2014 and the Application Regulation 2025. The law applying to an older retainer can differ. Establish the relevant regime before selecting a form or calculating time.

Under section 198 of the Uniform Law, eligible applicants include clients, third-party payers and law practices. Certain commercial and government clients fall outside the usual client costs provisions. The ordinary application period is 12 months after the bill or payment request, with payment relevant where neither exists. Establish the statutory trigger and any available late-application route for the applicant’s category.

Use the Supreme Court’s costs assessment forms and fees page to obtain the issued form and its information sheet. Form A1.1 concerns a client applying against a law practice. A2.1 concerns a law practice applying against a client. A3 concerns ordered party-party costs. Third-party payers and retaining practices have separate forms.

The Court states that there is no approved objections or response form. A written response must identify the file number and parties. A document called a notice of objection to a bill of costs must still meet the selected procedure.

For the NSW application, the lodgment fee is the greatest of $100, 1% of the unpaid bill or 1% of the amount in dispute. Assessor charges are additional, and liability for those charges requires a separate decision. For example, an unpaid bill of $30,000 and a disputed amount of $12,000 produce a $300 lodgment fee.

The phrase costs of detailed assessment does not identify a single Australian fee or procedure. Establish the court, jurisdiction and kind of costs before applying a fee schedule or objections deadline.

Assemble the Retainer and Billing Evidence

Arrange the evidence so each disputed charge can be checked against the authority to do the work and the basis for charging it. Keep a stable index and page references across both parties’ schedules.

Collect the following records:

• The costs agreement, acceptance evidence and relevant variations.
• Initial disclosures, estimates and later updates.
• Instructions, advice and work product supporting the charged tasks.
• Every relevant bill, its itemisation and underlying time entries.
• Counsel’s invoices, filing receipts and other disbursement vouchers.
• Credits, payments and trust-account transfers applied to the bills.
• Records showing when bills and payment requests were given.

The legal billing record helps explain what happened before the dispute. A time entry alone does not establish that the task was authorised, reasonably performed or charged at the correct rate.

A legal costs consultant can analyse the bill against the agreement, applicable scale and evidence of work. Where a legal costs expert report is required, define the questions and the procedural requirements for that report. Ask for reasons tied to specific items and amounts. A financial loss expert report addresses a different question: the amount or cause of financial loss.

Fictional Disputed-Item Schedule

This example assumes hourly charging. All figures below exclude GST. It records issues for a solicitor or costs specialist to assess, without predicting what an assessor will allow.

Item	Charged work	Objection	Evidence and response needed	Amount disputed
18	Two hours reviewing correspondence at $400 per hour	One hour allegedly duplicates item 17	Compare both entries with the correspondence and explain the distinct tasks	$400
24	Three hours at $500 per hour	Retainer records $400 per hour and no accepted variation is located	Produce the operative rate agreement and evidence of its acceptance	$300
31	$650 described as a filing disbursement	Receipt is missing	Locate the court receipt and match it to the proceeding and payment	$650
Total	These items only	Amount remains disputed pending response	Reconcile against the complete bill	$1,350

For item 24, the rate difference is $100 multiplied by three hours. Item 31 records the full unsupported amount as disputed. Finding its receipt changes the evidence, not necessarily the outcome for every other objection.

The respondent can use the same item numbers to admit an error, supply the missing evidence or explain why the objection is contested. Keep any concession separate from a settlement offer.

Prepare the Application or Response

Prepare the application in the selected jurisdiction’s order, with the supporting schedule ready before lodgment. The steps below describe file preparation. The issued form and applicable rules determine what must be filed and served.

1. Identify the applicant and respondent by their correct legal names. Record each party’s role and the bill or order under assessment. The names must match the supporting records.
2. Calculate time from the relevant bill, request or payment event. Preserve proof of that event. Address any required extension application before assuming an overdue matter can proceed.
3. Record attempts to resolve the disputed bill. State what remains disputed and retain the correspondence needed for the form’s settlement or conferral requirements.
4. Complete the current application form. Identify the legal basis, amount in dispute and requested outcome. Attach the documents its instructions require, with an index matching your references.
5. Calculate the filing fee and budget separately for assessment expenses. Reconcile amounts already paid so the application does not present the original bill as the unpaid balance.
6. Lodge and arrange service or response steps under that route. Retain the filing receipt and evidence of required delivery. Diarise the actual notice or assessor’s directions.
7. Submit objections or responses by item number. Answer information requests with the relevant records, explain any missing record and copy other parties where required.

For NSW client applications, the Manager sends the accepted application to the respondent for a response within 21 days. For practitioner applications, the Court describes an objections stage and a further response stage. Ordered-costs applications have a separate pre-lodgment exchange requirement. Follow the Court’s assessment procedure for the selected category.

The appointed NSW assessor sets the timetable and can request further material. Correspondence must include the other side. Keep submissions focused on the disputed work and supporting evidence so unrelated documents do not increase the assessment task.

Before lodging, resolve an incomplete retainer by locating acceptance and variation records. Missing bill-service evidence requires reconstruction from delivery records, not an invented receipt date. An unsupported disbursement requires its voucher and payment trail or a clearly identified unresolved objection.

Check the Determination and Next Steps

Reconcile the determination with allowed legal costs, assessment expenses and payments already credited. Keep any interest calculation separate and apply the basis actually determined.

In this fictional example, allowed legal costs are $18,000 and credited payments are $12,000. The remaining legal-costs balance is $6,000. If assessment expenses of $2,000 are allocated to that payer, the combined balance is $8,000 before any separately payable interest. Avoid adding a filing fee again if the determination already includes it.

Read the reasons beside each disputed item. Record which objections succeeded and which failed, including any change in the charging basis. A lower assessed bill does not automatically decide a separate negligence or conduct allegation.

For NSW, a party can seek review by a panel of two costs assessors. Review has separate fees and time requirements. Distinguish a request to correct an inadvertent certificate error from a challenge to the determination.

The NSW certificate can be registered as a judgment for enforcement. Before registration or review, confirm the correct parties, net amount and applicable filing period. A review request does not itself establish that enforcement is stayed.

Challenge a Bill in Queensland and Western Australia

A bill challenged in Queensland or Western Australia needs the local assessment route. Reuse the evidence index and disputed-item schedule, then apply that jurisdiction’s legislation and court procedure.

Queensland

Queensland’s Legal Profession Act 2007 governs client legal costs, with costs-assessment procedure under the Uniform Civil Procedure Rules 1999. A client or third-party payer can seek assessment of relevant costs even after full or partial payment.

The ordinary client application period is 12 months from the applicable bill or payment-request event, or payment where neither exists. Section 335 addresses late applications and exceptions for sophisticated clients. A retaining law practice has different timing under section 336. Identify the applicant’s category before calculating the deadline.

The Queensland Legal Services Commission’s billing guide explains the assessment framework and required notice to affected parties. Prepare evidence of service and respond to the appointing court’s orders. Establish the court with monetary jurisdiction over the bill before filing.

For a client challenging legal charges, separate agreement about the bill from a conduct complaint. The Commission explains that a court-ordered costs assessment gives the binding assessment route. Its complaint role includes potentially excessive charging and other conduct concerns. Use the complaint process for those concerns without assuming that lodging it preserves an assessment deadline.

Western Australia

In WA, identify when the client first instructed the law practice. That determines whether the earlier Legal Profession Act 2008 regime or the Uniform Law applies. The Supreme Court’s costs-review factsheet explains how that distinction affects the available route. Board and Supreme Court processes cannot run concurrently for the same costs dispute.

For a Supreme Court application, assemble the bills, applicable agreement and disclosure material. The memorandum of conferral records attempts to resolve the dispute, the items and amounts disputed, reasons and orders sought. Calculate the assessment period separately from any Board complaint period.

Select a WA legal costs scale by the type of work, court and period when the work was done. The Legal Costs Committee publishes separate determinations for different work. Its Supreme and District Court criminal costs determinations illustrate why civil work requires a different instrument. Work spanning successive determinations can require separate treatment.

Read the selected determination’s application clause alongside the costs agreement. Then identify any between-party order and the basis it permits. A scale rate, the client’s agreed rate and an amount recoverable from an opponent answer different questions.

Before lodging the WA dispute, have the responsible solicitor or costs specialist record the operative instrument against each disputed category. The completed file must explain both why the selected route applies and how each amount connects to the records.