How to Choose AI for Your Accounting Firm

The pitches arrive every week now. "AI bookkeeping." "Automated BAS." "Replace your data entry." Most of them are built for a sole trader working out of a shoebox of receipts, and your firm is not that. You run a registered practice. You carry professional responsibility for every lodgement that leaves the building.

So the question is narrower for you than for a sole trader. Whether a given tool fits a compliance-bound firm. Whether it gives you review hours back or hands you more of them. Whether it keeps you on the right side of the Tax Practitioners Board when the quarter closes.

The stakes sit in the BAS cycle and the receipt pile. Every quarter your team reconstructs the numbers, reconciles the GST, and checks the coding before anything is lodged. That work is real, it is billable, and it is the part most owners want back. A good AI fit returns those hours. A bad one hands you a stack of confident-looking drafts you now have to re-check line by line.

This guide is for the owner or principal who has already decided to adopt AI and wants to choose well. It covers the five things that separate a good fit from a bad one, the four kinds of vendor you are choosing between, how to think about cost, the questions to ask before you sign, and where Briick fits. Every regulatory point here is sourced to the ATO and the Tax Practitioners Board.

The five things that separate a good AI fit from a bad one

Strip the marketing and five things decide whether an AI tool earns a place in an accounting firm. Take them into every demo.

1. It reads and writes to your practice software. The value disappears if a person has to retype the output. A tool that fits reads from Xero and writes back into it: a draft bill, a reconciled figure, a summary in your template. Ask to watch it write, live, into a test file. If the demo is a dashboard the tool controls and your team copies out of by hand, that is a ceiling you meet in week one.

2. The human stays the registered accountant who reviews and lodges. Under the Tax Practitioners Board, only a registered accountant can prepare or lodge a BAS for a fee, and there are civil penalties for doing it unregistered. See the Tax Practitioners Board on who can provide BAS services. AI does not change that line. A tool that fits prepares the work and stops. Your agent reviews it, keys the figures into Xero Tax, and lodges. Any vendor implying the software "does the BAS" for you is describing something your registration will not permit.

3. You can see and edit what it learns. Coding is judgement: this supplier maps to that account at this GST code. A tool that fits shows you its rules in plain language and lets you correct them, so the second quarter reads sharper than the first. A black box that codes on instinct and cannot tell you why becomes a liability at review time.

4. Your client data stays yours. You hold financial records for clients who trust you with them. Under the Privacy Act, a firm handling personal information carries real obligations for how it is stored and secured. A tool that fits keeps the data in systems you already own, your Xero, your mailbox, your drive, and leaves the firm owning it. Ask where the data lives, who else can see it, and what you keep if you walk.

5. There is a real person when something breaks. A receipt in a currency the tool has never seen. A supplier who redesigns their invoice. Xero shipping an API change. These happen. A tool that fits comes with a human who answers when they do. A login and a help centre is a ceiling the first time a quarter is on the line.

What you are actually choosing between

The market sorts into four kinds of offer. Each solves a different slice of the problem, and each carries a different ceiling.

Bolt-on AI inside the tools you already run. Xero, MYOB and Dext keep adding AI features to what they already sell: suggested coding, bank-rec hints, document reading. The strength is that there is nothing new to buy and it lives where your team already works. The ceiling is that the feature does what the vendor built for the average customer, and it stops at the edge of that product. Your firm's specific process, your BAS summary template, your supplier quirks, sit outside it.

Point tools for one job. Receipt capture is the classic case: Hubdoc, Dext and their peers read a receipt and push it toward your ledger. The strength is that they do one narrow job well. The ceiling is that you end up with a stack of single-purpose subscriptions, each with its own login and its own coding logic, and none of them talks to the others or to your BAS prep.

An offshore team with an AI layer. Outsourced bookkeeping shops now wrap an AI front-end around offshore labour. The strength is that it clears volume and it is a known model. The ceiling is that you are renting throughput, the coding rules live inside someone else's process, and your client data travels through their systems. When you leave, you keep none of it.

A firm that builds you owned AI agents. Here you commission AI agents that run your actual workflows and that your firm owns outright. The strength is that the agent is built around your process, your template, and your Xero, and it stays yours. The ceiling is that a build takes a scoping conversation and a short setup before it runs. This is the bucket Briick works in, covered below.

How to think about cost

Most vendors quote you a monthly price. On its own that number tells you almost nothing. Three figures matter more.

The hours you recover, and where. The value shows up in prep and checking. Count the hours your team spends reconstructing figures, reconciling GST, and coding receipts before a BAS is ready to review. That is the pool an AI tool draws down. Lodgement stays with your agent as a fixed cost, so leave it out of the sum.

Owned asset against rented subscription. A subscription is a cost you carry every month for as long as you use it, and it leaves nothing behind when you stop. An owned agent is closer to a piece of equipment: a build cost up front, then it is yours to run. Over a few years the two shapes diverge. Ask which one you are being sold.

The re-check tax. The hidden cost in any AI tool is the time your team spends re-checking its output. A tool that codes at 70 percent accuracy and needs every line reviewed can cost you more than the manual process it replaced. Price the accuracy first, the sticker second.

The questions to ask a vendor before you sign

Take these into every demo. If a vendor cannot answer them clearly in half an hour, you have your answer.

1. Show me the tool write a draft into a live Xero file, now, on this call.
2. Who stays the registered accountant on a BAS your tool has prepared? Walk me through the review and lodgement step.
3. Where do I see the coding rules, and how do I edit one when it gets a supplier wrong?
4. Where does my client data live, who else can access it, and what do I keep if I cancel?
5. What happens when Xero changes its API? Who fixes it, and how fast?
6. How does the tool handle a receipt billed to a different entity, a photo instead of a PDF, and a charge in a foreign currency?
7. When something breaks in the middle of a BAS quarter, who answers, and how do I reach them?

Where Briick fits

Briick sits in the last bucket. It builds AI agents that run a firm's real workflows inside the firm's own Xero, and the firm owns them. Three builds show the shape.

A BAS Assistant that prepares the statement. The AI agent reconstructs a general-ledger-equivalent from a firm's Xero, pulling bank transactions, invoices, payments, manual journals and credit notes, then reconciles the GST and produces a BAS summary in the firm's own branded template. The accountant reviews the summary, keys the figures into Xero Tax, and lodges. The agent prepares. It does not lodge, and it does not advise. The same build prepares the monthly IAS for clients reporting PAYG between quarters. You can see how this workflow is put together on the accounting BAS preparation automation page.

A Receipt Agent that drafts the bills. Receipts emailed to a finance mailbox are read, coded to an account and GST tax code by the firm's own supplier rules, and drafted into Xero as draft bills with the source PDF attached, filed, and flagged for the accountant. The AI agent reads a phone photo as well as a PDF, matches a foreign-currency receipt to the card charge so the AUD figure is exact, and handles several documents in one email. The accountant approves each draft inside Xero. When a receipt was billed to another entity, the agent flags it and leaves it unbooked. It stands in for the Hubdoc or Dext step, and the firm owns the coding rules.

Briicky, the AI Operator. The firm can talk to or type at Briicky to run these jobs on demand: generate the branded BAS summary, turn an emailed image or email body into a filed PDF, or batch-download a year of a client's Xero invoices in one pass. Briicky is the front door to the agents, worked by voice or text.

The sensible way to test all of this is a single-client pilot. Pick one client and one quarter. Run the receipt coding and the BAS prep through the agents in parallel with your current process for that one cycle. Compare the hours spent and the coding accuracy at review. Then decide with the numbers in front of you.

Frequently asked questions

Can AI lodge a BAS for my firm?

No. Under the Tax Practitioners Board, only a registered accountant can prepare or lodge a BAS for a fee. An AI agent can prepare the working papers and a draft summary. A registered accountant reviews the figures, keys them into Xero Tax, and lodges. The professional responsibility stays with the agent.

What does a BAS actually report?

A business activity statement reports and pays several obligations in one form, most commonly GST, PAYG withholding, and PAYG instalments. A business registered for GST lodges a BAS on a quarterly, monthly, or annual cycle, set mainly by its GST turnover, and the ATO sets the due dates.

What is the difference between a BAS and an IAS?

An instalment activity statement, or IAS, reports and pays PAYG obligations when a business is not registered for GST, or in the first two months of a quarter for clients who report those amounts monthly. A BAS carries GST as well. A firm's AI agent can prepare both.

Does using AI put my TPB registration at risk?

Using AI to prepare working papers does not remove your registration or your obligations. The risk sits in lodging work you have not reviewed. Keep the registered accountant as the reviewer and lodger, keep the coding rules visible and editable, and the tool supports the practice rather than standing in for the agent.

Where does my client data go when I use an AI agent?

With an owned build, the data stays in the systems you already run: your Xero, your mailbox, your drive. Under the Privacy Act, your firm carries obligations for how that information is stored and secured, so where the data lives is a fair question to put to any vendor. A firm should own its own data.

How accurate is AI receipt coding?

Accuracy depends on the rules behind it. A tool that codes by your firm's own supplier rules, and lets you correct a rule when it is wrong, gets sharper each quarter. Every draft still lands in Xero for a person to approve, so an error is caught before it reaches the ledger.

How long does it take to set up?

An owned agent is a build, so it starts with a short scoping conversation about your template, your Xero, and your supplier rules. A single-client, single-quarter pilot is the fastest way to see the hours it recovers before you roll it wider.

Map this to your firm

If you want a walk-through where the BAS prep, receipt coding, and review lines get mapped to your firm's actual client volume, book a demo with Briick.