A client who receives a 'lump sum' bill of costs from a lawyer and requires more detail or wants to dispute the amount of costs, or the number of items charged, can write to the lawyer and request an itemised bill in a detailed form [Legal Practitioners Act 1981 (SA) Sch 3 cl 34]. If the lump sum bill has already been paid, it is still possible to write to the lawyer, within a reasonable time of paying the account, requesting an itemised bill.

A bill can be submitted to the Supreme Court for adjudication (assessment) of the costs charged. It is also possible to request taxation of a lump sum bill, but in this case the Associate Justice will usually direct the lawyer to give particulars in taxable form (a type of itemised bill). As the taxation procedure can involve further costs to the client, it is much better to obtain the itemised bill before taxation.

An application for adjudication of costs must be made within 6 months of the bill being given, a request for payment being made, or of the bill being paid in the absence of a bill or request [Sch 3 clause 37 (4)]. The Court may exercise its discretion and allow the matter to proceed although the application has been made after the 6 month period.

Lawyers who want to have their costs adjudicated in the Supreme Court must first give a bill to the client. An application cannot be made by a lawyer unless 30 days have passed since either [Sch 3 Cl 39]:

Unless the original amount claimed by a lawyer is significantly reduced or the lawyer failed to comply with the disclosure requirements, the client will probably be ordered to pay all of the lawyer's costs, including the lawyer's costs of preparing for, and attending, the adjudication [Sch 3 clause 49]. If either the client or the lawyer has proceeded to seek an adjudication after the Legal Profession Conduct Commissioner has made a determination and the client does not obtain more than the amount determined by the Commissioner, the client may be ordered to pay the costs of the adjudication. These costs may be quite high depending on the length of the bill and the time taken on adjudication.

No useful guideline can be given as to the likely outcome of an adjudication, as the costs of an adjudication are at the discretion of the Registrar.

As an unsuccessful adjudication of costs can result in the client having to pay more, it is wise to obtain independent legal advice before proceeding to adjudication.