Four steps, and you make every call.
Upload or type.
Export the period from your bank as a CSV and drop it in, or type each sale and cost yourself. The file is read in your browser and never sent to us.
Sort each merchant yourself.
Transactions are grouped by who they were with, biggest first. You tap business or not for each group. Nothing is pre-ticked, and a merchant you sorted last period comes back with your own choice on it.
Read your figures.
GST is one eleventh of the lines you marked as having GST in them. G1, 1A, 1B and the estimated payment or refund update as you sort.
Download a P&L.
The same lines with the GST taken out, grouped by merchant on a cash basis, as a CSV or a printed page your accountant can read. You lodge the BAS yourself.
Free. No account needed.
Type your sales and costs, or run a sample statement through the sorter. You get G1, 1A, 1B, the estimated payment or refund, and a P&L to download. Saved on this device. Add a free account and your periods follow you to your other devices.
With BAS reminders: $9 + GST a month.
Upload your own bank statement each period, and get two emails before every due date. Cancel anytime. What the reminders include.
Everything saves automatically as you type. Amounts are what was actually paid or received, GST included where it applied.
Bring in this period's transactions.
Upload the period's bank statement as a CSV and sort it in one pass, or type lines straight into Money in and Money out below. Both land in the same figures.
Works with CSV exports from CommBank, Westpac, NAB, ANZ and most others. The file never leaves your browser. We never see it or store it.
Statement upload every period, plus two emails before every due date. Cancel anytime. Already subscribed? Log in, or open the link in any reminder email.
Free to try on a sample quarter: Each is Apr to Jun 2026. Picking one selects that quarter for you.
Money in: your sales G1 $0.00 · GST collected $0.00
One line per invoice, job, week of takings, whatever level you track at. Toggle GST off for any GST-free sales.
Money out: business costs Claimable GST $0.00
Only costs that had GST in the price generate credits: toggle GST off for bank fees, wages, most insurance and overseas subscriptions. Keep tax invoices for anything over $82.50.
Wages and PAYG withholding not applicable
If you paid wages this period, W1 is the gross you paid and W2 is the tax you took out of it. Enter each pay run, or just the two totals from your payroll software. Employees' names are optional: a label like "Casual 1" works.
Your payroll software's activity statement report gives both figures for . Use those.
Only W2 is added to what you pay, because it is tax you already took out of someone's wages. Wages carry no GST, so keep them out of Money out. Worked out from what you entered, not checked by anyone here.
Your BAS position.
Worked out from the lines you sorted, using the amounts you entered. It is not a lodgement, it is not advice, and nobody here has seen or checked it. You lodge it through ATO online services or your own agent by your due date. If you want a registered agent to check a period, that is a separate service with its own engagement, not part of this tool. Stuck on how the tool works? Call 1800 546 526.
Profit and loss
A plain cash-basis summary of the same lines, GST taken out, so the figures read the way an accountant expects them to. Income and expenses only: it has no opening balance, no depreciation, no stock and no entries you have not put in.
Not financial statements and not tax advice. Worked out from the lines you sorted, on a cash basis, and nobody here has checked it. Your accountant or bookkeeper will want the source records, not this page.
Your receipts stay with you: on purpose.
We keep your figures, never your documents: statements are analysed inside your browser and discarded, and we don't store receipts. The ATO expects you to keep records (like tax invoices over $82.50) for five years. A simple photos folder per quarter does the job. Snap receipts when they happen, keep business spending on the business account, and this page does the rest.
Want this to find you before every due date?
The BAS reminder service emails you two weeks out and week-of, checklist included: $9 + GST/month, cancel anytime.