Buying an Accounting Practice: Onboarding the Clients

Buying an accounting practice means bringing each client across with permission, agreed services and a clear record of who handles their next deadline. Start with consent before files move, then track the handover until the buyer can act for every accepted client.

Buying an Accounting Practice Checklist

Use this order for a fee-base purchase. Settlement does not give the buyer permission to access every client file. Bring urgent deadlines into the handover plan before either practice stops acting.

Step	When	Practice action	Client action
1. Agree the consent arrangements	Before settlement	Seller and buyer agree the notice, disclosure scope and secure transfer method	None yet
2. Send the introduction and consent letter	Before settlement	Seller explains the proposed change and who will contact the client	Read the proposal
3. Record consent	Before disclosure, whether before or after settlement	Seller records permission for each client and entity	Accept or decline the proposed transfer
4. Request clearance and files	After consent	Buyer requests the records and checks outstanding work	Authorise discussions and release of records
5. Issue the buyer’s engagement letter	Before the buyer starts agreed work	Buyer reviews scope, fees and responsibilities	Accept the buyer’s engagement letter
6. Review identity and authority	Before relevant services or access	Buyer checks transferred identity records and performs further checks where needed	Supply missing evidence
7. Arrange ATO representation	Before the buyer accesses or acts on the relevant accounts	Buyer uses the applicable whole-practice or individual linking route	Nominate the buyer where individual nomination applies
8. Update company agent appointments	At the agreed handover point	Buyer lodges the authorised ASIC appointment	Company officeholder signs the appointment
9. Chase and reconcile	After settlement until each case closes	Buyer follows up missing items and reconciles both client lists	Finish outstanding actions or choose another accountant

The buyer controls preparation, acceptance decisions and follow-up. Consent, signing and some nominations depend on the client. Give each dependency a named staff owner and a next action.

If settlement arrives before a client replies, keep that client outside the file transfer. Agree who handles any immediate deadline while their decision is outstanding.

Client Consent Before Files Change Hands

The seller needs the client’s consent or a legal duty before disclosing client affairs to the buyer. The TPB’s practice-transfer guidance applies that confidentiality duty to a sale of a practice or client list.

Use opt-in consent that records an affirmative answer. An opt-out notice tells the client that transfer will happen unless they object. Silence leaves doubt about whether they received the notice or understood the choice. The OAIC’s consent guidance allows implied consent only where the circumstances support it. A notice alone does not establish consent.

The introduction letter names the buyer and explains what changes. Include the proposed services, contact arrangements and file disclosure. Tell the client how to agree, the response period and how to decline or choose another accountant. Identify who handles unfinished work during the change.

Privacy law also needs a transaction-specific assessment. The OAIC’s business-sale guidance recommends de-identified customer information during due diligence. A confidentiality agreement does not remove the seller’s TPB duty.

Most small businesses with annual turnover of $3 million or less are outside the Australian Privacy Principles, but exceptions apply. Small reporting entities must follow the Australian Privacy Principles when handling personal information for their AML/CTF obligations. Other activities are covered only if another Privacy Act coverage rule applies. The OAIC’s small-business guidance sets out the other exceptions.

A client-list asset sale can involve trading in personal information. A share sale that keeps information within the same business is different, as the OAIC explains.

For clients who decline, keep their records with the seller until an authorised release to their chosen accountant. For non-responders, retain the records securely and continue agreed follow-up. Neither a sale agreement nor an unanswered letter authorises sending their files to the buyer.

Due Diligence on the Client Book

Review the client book through de-identified information before consent, then reconcile authorised records against the purchase schedule. A cloud bookkeeping business for sale needs the same client-permission checks as a tax practice.

For each authorised client, inspect the following items.

• Entity types and related entities, including corporate trustees and self-managed super funds.
• Lodgment status, overdue returns and approaching deadlines.
• ATO debts, payment arrangements and unresolved notices.
• Fee history, unpaid invoices and the work those fees covered.
• Engagement letters, scope exclusions and complaints or disputed advice.
• Work in progress, missing records and who will finish each job.

Keep an acceptance decision separate from the commercial purchase list. Decline or escalate clients whose requested work exceeds your competence, presents an unmanaged conflict or involves conduct you cannot accept. Overdue work needs an assessment of available staff and time before you promise completion.

A retention or clawback clause can adjust the purchase price for clients who leave. Its definition of a retained client decides what you count. Track the agreed client identifier, relevant entity, acceptance, first completed job and qualifying fees within the contract’s measurement period. Do not count a consent signature as retained revenue unless the contract says so.

In a fictional purchase of 240 clients, 180 signed consents and 150 completed first jobs are different measures. Report both against their definitions. Keep declined clients and missing replies visible so the parties can reconcile the result without exposing unnecessary client information.

Professional Clearance and the File Handover

Request professional clearance from the seller after the client authorises the discussion. A cooperating seller can explain unfinished work, known problems and the records needed for acceptance. Permission to disclose files and the buyer’s decision to accept remain separate checkpoints.

The professional appointment rules in APES 110 require covered members to consider reasons not to accept a replacement engagement. The professional clearance letter guide covers the request itself.

Build a file manifest for each client. Request prior returns and workpapers, depreciation schedules and capital gains records. Add executed trust deeds and variations for trusts, company registers for companies and the relevant SMSF records. Include the lodgment program position, outstanding ATO correspondence and work in progress.

Record the expected item, period, received status and file location. Give missing items an owner and follow-up date. A folder marked transferred is insufficient if its capital gains schedule is absent.

For an invented company client, the buyer receives the prior return and depreciation schedule but no carried-forward loss workpaper. Mark the handover incomplete and request that workpaper. Assess the effect on the next return before starting that calculation.

New Engagement Letters for Every Client

Have each accepted client agree to the buyer’s engagement letter. The seller’s current letter describes the seller’s services and terms. The buyer needs its own documented scope, fees, responsibilities and termination arrangements.

For members covered by APES 305, documenting and communicating engagement terms is mandatory. Doing that before work starts and obtaining written acceptance are preferred practices. Set your acquisition’s acceptance policy with these distinctions in mind.

Set a before-work signing rule for the acquisition. Work started before acceptance creates scope and fee-dispute risks. Record any urgent exception, the agreed services and the client’s approval before proceeding. A missing signature does not erase professional duties or automatically mean that no contract exists.

Issue letters in batches by the nearest deadline, then by service type. Check each batch for the correct entities, authorised signer and scope. A family contact is not automatically authorised to engage you for every entity in the group.

Track the version sent, signature status and exceptions. The accountant engagement letter guide covers the terms to tailor for each client.

Agent Nominations and Identity Checks

Choose the ATO transfer route according to what you bought. The ATO can process an eligible whole-of-practice transfer between registered agent numbers. It does not use that route for only a portion of a client base. Clients in a qualifying whole-practice transfer do not need individual nominations.

The ATO’s transferring-clients guidance requires signed authorities from both agents and confirmation that all transferring clients consent. It identifies the requested tax roles and agent details. Save correspondence that will not transfer before the seller loses access. Submit the request through practice mail under General questions/problems/help and Whole of practice transfer.

For a partial fee-base purchase, use the individual linking route. Business clients within client-to-agent linking nominate the buyer themselves. The buyer then adds the relevant accounts within the nomination window. Individuals and sole traders follow their applicable authorisation arrangements. The agent nomination guide gives the client steps.

A nomination confirms authority in ATO systems. It does not replace identity verification. The TPB’s verification guidance distinguishes a practice acquisition from an ordinary new-client referral. The seller transfers contemporaneous proof-of-identity records with authorised files. The buyer need not repeat checks for every acquired client solely because of the sale, but must consider ongoing checks as appropriate.

Review those records for missing evidence, changed representatives or doubts about identity. Record further checks and authority separately. For ATO online access, use the ATO’s applicable agent verification methods. The tax-agent identity checks guide explains the distinction between the person, entity and representative.

AML/CTF obligations now cover accountants providing designated professional services, subject to the applicable conditions. General accounting alone does not bring every service within that regime. Assess each proposed service before using the AML obligations guide.

AUSTRAC’s existing-customer guidance contains a transferred pre-commencement customer exception. It requires receipt of the prescribed transaction and initial and ongoing customer due diligence records from the other reporting entity. Without those records, complete initial customer due diligence before the designated service.

Ongoing monitoring still applies, with further initial checks triggered in specified circumstances. A long relationship with the seller alone does not establish the exception.

For company clients, obtain an officeholder-signed Form 362 and lodge the buyer’s appointment as ASIC registered agent. Review registered-office arrangements separately. ASIC’s agent guidance explains appointment and cessation.

Review staff permissions in Relationship Authorisation Manager for the buyer’s business. Staff need their own authorisations and identities. The seller’s login or a client’s credentials must never become the buyer’s access method.

Selling Your Practice: The Seller’s Side

The seller must protect client confidentiality throughout the sale and leave a record of unfinished responsibilities. Agree who completes work in progress, who contacts each client and when access moves.

Retain the service records required by the TPB’s record-keeping duty. Its minimum is five years after the service is completed, with longer periods where another requirement applies. Identity-check records have a different starting point: at least five years after the engagement ends. Arrange secure access to retained records after retirement.

Notify the TPB of relevant registration-detail or circumstance changes within 30 days of becoming, or reasonably needing to become, aware. The TPB’s change guidance covers practice changes and the registration implications of a changed entity. Address surrender separately if the seller stops practising.

Discuss professional indemnity run-off cover with the insurer before cessation. Run-off cover addresses later claims about past services. The TPB’s insurance guidance recommends it where appropriate. After registration ends, TASA no longer requires cover meeting the TPB’s requirements, but civil claim risks can continue.

For individual transfers, confirm the buyer’s relevant account link before removing the seller’s representation. In a whole-practice transfer, coordinate removal through the ATO transfer itself. Reconcile the outcome so that a client does not lose both agents before a deadline.

If a client chooses another accountant, record that decision and obtain permission for the new recipient. Give that accountant the authorised handover and agree who finishes urgent work. The client’s choice is not a failed consent form to send again indefinitely.

Tracking the Book Until Every Client is Across

Use one row per client, with separate entity rows where authority or appointment differs. The tracker needs more than a single transferred status.

Checkpoint	Evidence to retain	Next action when incomplete
Consent	Permission, scope and authorised recipient	Seller contacts the client
Clearance	Request, response and acceptance decision	Buyer follows up the seller
Files	Manifest and missing records	Request the specific item
Engagement letter	Agreed version and acceptance	Contact the authorised signer
Identity	Transferred record and further check decision	Obtain missing evidence
Agent representation	ATO account link or transfer confirmation	Resolve nomination or transfer issue
Company appointment	Authorised ASIC appointment	Obtain authority or lodge the form
First job	Owner, deadline and completion	Assign work or resolve the blocker

Set a follow-up schedule agreed with the seller. After the first reminder, check delivery and contact details. Call clients with approaching deadlines.

Stop when a client declines. For persistent non-response, send a final notice identifying the outstanding decision and who holds the records. Escalate unresolved deadlines before closing the row.

Send each consenting client the same guided form with the questions that apply to their entities. Compare confirmed details against the seller’s authorised records. Resolve ABN mismatches, entity-name changes and missing documents before creating the buyer’s final client record. Handle TFNs through a protected collection method and authorised staff review.

Tax Genie collects client details, identity verification and an engagement letter in one request. It checks ABNs against the Australian Business Register, checks TFN format and reviews answers with rules and AI.

Every TFN is removed before AI review. Staff compare the corrected details with the seller’s records and decide what to accept.

Tax Genie tracks each item’s owner, due date and progress, then sends reminders for outstanding client actions. Approved details go into your tax software and Xero Practice Manager after review. Use the tracker to confirm that every accepted client has an authorised file, agreed services and a named owner for the first deadline.