Can AI prepare my BAS?
Yes, as a checked draft.
✓
Codes GST on every line and maps it to the right label
✓
Reconciles GST collected against GST paid
✓
Flags missing tax invoices, duplicates and odd codes, with the reason
AI BAS preparation,
checked line by line
For Australian accounting firms, BAS agents and multi-entity finance teams
Product demo
See it check a client’s BAS
before lodgement
Watch it code a quarter’s transactions, flag GST errors with the reason and the fix, and export the workpapers.
AI and your BAS
What AI can and can’t do
with your BAS
BAS automation uses AI to prepare and check your Business Activity Statement (BAS) before it goes to the ATO. It codes GST on every transaction, reconciles your accounts and flags anything unusual for a person to review. You, or your registered BAS or tax agent, still approve and lodge.
Can AI lodge my BAS?
No, not on its own.
✕
You lodge through ATO Online services, your software or your agent
✕
You or your registered agent stay responsible
✕
Grey areas, like private use, need a person’s judgement
How it works
How to prepare a BAS
when AI does the checking
Four steps from your ledger to BAS-ready workpapers.
Connect your ledger or upload the period’s transactions for each client or entity.
The bookkeeping AI agent codes GST, runs the BAS reconciliation and tests every line against ATO rules.
Your team approves or overrides each flagged line. Every change is logged with who and why.
Export BAS-ready workpapers and the audit trail, then you or your agent lodge.
ClientPeriod dataStatus
Example Plumbing Pty Ltd412 transactions · XeroConnected
Example Dental Group3 entities · 1,286 transactionsConnected
Example Freight Co655 transactions · file uploadUploaded
Example Café Trust198 transactions · MYOBConnected
G1Total sales$184,320
1AGST on sales$16,756
1BGST on purchases$9,214
W1Total salary and wages$62,400
W2Amount withheld$11,850
412 of 412 lines checked · bank and GST clearing reconciled · 5 flags
LineWhy it’s flaggedActions
Bank fee · $28.00GST claimed on an input-taxed feeFix: Change to no GSTApprove fixOverride
Fuel · $186.40Full GST claimed on a vehicle with private useFix: Claim the business share onlyApprove fixOverride
Office supplies · $412.50No tax invoice for a purchase over $82.50Fix: Attach the invoice before claimingApprove fixOverride
Example Electrical · $2,310.00Possible duplicate of bill 4471Fix: Remove one billApprove fixOverride
Wages · $4,200.00Coded to purchases, not W1Fix: Move to W1 and check W2Approve fixOverride
OutputDetailsStatus
BAS workpapersLabels, reconciliations and notes · PDFReady
Audit trail5 flags · 4 fixes approved · 1 override with reasonReady
Reviewer sign-offSenior accountant · 14 Oct 2026, 3:42 pmSigned
LodgementBy you or your registered agentYour step
Works with your ledger
QuickBooks Online
File upload
Using another ledger or ERP? We confirm it on the first call.
Checks
What it checks
before you lodge
The six areas of a good BAS review checklist, run on every client file.
Source documents
Every transaction is in, with a valid tax invoice for purchases over $82.50.
Account reconciliations
Bank, clearing and loan accounts reconcile to their statements.
GST coding
Each line has the right GST code and lands on the right label: G1, 1A or 1B.
Reconciles GST collected and GST paid
GST on sales and purchases ties back to the ledger.
Payroll and PAYG withholding
Wages at W1 and tax withheld at W2 match payroll.
Other labels
Fuel tax credits and any other labels your clients report.
Every flag, approval and change is logged, so reviewers and auditors can see why each figure is there.
Common mistakes
The BAS mistakes
it catches
Common BAS mistakes, flagged before they reach the ATO.
Already lodged? Follow the ATO’s guide to fixing BAS mistakes or making adjustments.
These are input taxed, so there’s no GST credit to claim.
Flagged so you claim only the business share.
Held back until the invoice is attached.
Matched on supplier, amount and date.
Moved to W1, with the tax withheld at W2.
BAS software that checks
before you lodge
Most AI accounting software works inside one ledger, one business at a time. This works across all of them.
| Manual BAS review | AI inside your ledger | humaniseAI BAS Compliance Automation | |
|---|---|---|---|
| Client files | One at a time | One business per file | One queue across every client and entity |
| GST rules | Each preparer’s judgement | The software’s defaults | Your firm’s rules, applied the same way every time |
| What gets checked | What time allows | Varies by product | Every line, with the reason for each flag |
| Review and roles | Email and spreadsheets | Per-file access | Preparer and reviewer roles |
| Audit trail | Notes, if kept | Inside that ledger | Every flag, approval and override logged |
AI bookkeeping that’s ready for BAS time
Built for the people who prepare and sign off BAS for more than one business.
One review queue across all client files
For accounting firms, BAS agents and bookkeepers. Every client goes through the same checks, so seniors review flags, not every line, in BAS season.
Every entity, one review
For CFOs and financial controllers running several entities. Check each entity’s BAS in one place, with the same GST rules across the group.
Industry checks
TPAR payments
GST-free health and NDIS
Fuel tax credits
Deferred GST on imports
Margin scheme
Bills our AP agent codes flow straight into the BAS check →
Need people as well as software? Finance Talent →
Trust
Built for how the TPB
expects AI to be used
Your agent stays accountable
The Tax Practitioners Board’s guidance TPB(GS) 55/2026 (22 July 2026) lets practitioners use AI if they review its work and keep records. Every flag and approval is logged.
Client data stays private
Private AI in an access-controlled environment. Client files are kept apart, and your data never trains a public model.
Sign in with Microsoft
Single sign-on with multi-factor authentication, and role-based access to each client file.
FAQ
BAS preparation FAQs
Updated 30 October 2026
What happens next
See what it flags
on last quarter’s BAS
01
Call · 30 minutes
We learn how your team prepares and reviews BAS today.
02
Run · About a week
We check last quarter’s BAS for one client or entity.
03
Review · 45 minutes
We go through every flag together. You decide what’s next.
