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Brontiq Books

Local-first invoice ledger

Brontiq Books brings invoices, payments, credits and BAS into one ledger for freelancers, contractors and small businesses. Hourly and fixed-price work, GST, payment history and account statements stay with the client record.

Data
Yours
The ledger belongs to your business
GST
Per line
Summed, not applied at the foot
Ledger
Connected
Invoices, credits and payments
Overdue
Current
Based on the invoice due date

Australian tax invoices

Tax invoices carry the supplier and ABN, client details, invoice number, issue and due dates, itemised charges, GST and amount payable.

GST is calculated for each line, so taxable and non-taxable items share one invoice with a clear total.

Brontiq Books · Tax invoice BB-2026-0184 Issued A4 · 16 Feb 2026 · AUD incl GST
An issued Brontiq tax invoice, BB-2026-0184 An A4 tax invoice. The header carries the Brontiq mark, the words Tax invoice, the supplier name Harbourline Studio with an ABN, and a paid stamp. Below it the invoice number BB-2026-0184, the issue date 16 February 2026, the due date 2 March 2026, and the client Ravensworth Civil with a contact and an email. A table lists four lines: a two day discovery workshop at 1450 dollars, thirty eight hours of ledger integration at 165 dollars an hour, a branded statement template at 980 dollars, and a data migration at 1640 dollars. Each line shows GST at ten per cent. The subtotal is 11790 dollars, GST is 1179 dollars, and the total payable is 12969 dollars. Payment terms, bank details and a note that the document was generated by Brontiq Books close the sheet. B Brontiq TAX INVOICE PAID FROM Harbourline Studio ABN 54 118 402 663 INVOICE NUMBER BB-2026-0184 INVOICE DATE 16 Feb 2026 DUE DATE 02 Mar 2026 BILL TO Ravensworth Civil Pty Ltd Attn: Dale Whitmore [email protected] ABN 61 774 903 218 DESCRIPTION QTY UNIT PRICE GST LINE TOTAL Discovery workshop, on site Two days, scoping the ledger migration 2 1,450.00 10% 2,900.00 Ledger integration build Hourly, billed at the agreed rate 38 165.00 10% 6,270.00 Statement template, branded Fixed price, one revision included 1 980.00 10% 980.00 Data migration, 3 200 records Fixed price, reconciled against source 1 1,640.00 10% 1,640.00 SUBTOTAL $11,790.00 GST $1,179.00 Summed from the rate on each line, then rounded once TOTAL PAYABLE AUD $12,969.00 PAYMENT Payable within 14 days of the invoice date. Electronic transfer preferred. BSB 062 918 ACC 4471 0263 Reference BB-2026-0184 RECEIVED Paid in full on 2 March 2026. This invoice is closed and appears as settled on the February statement. AGAINST THIS ACCOUNT Invoice total $12,969.00 Payment received, 2 Mar 2026 −$12,969.00 Balance on this invoice $0.00 Generated by Brontiq Books · GST is stated separately as required for a tax invoice Page 1 of 1
Four invoice lines: $11,790.00 before GST, $1,179.00 GST and $12,969.00 payable. Hourly work is 38 hours at $165.00.

Hourly and fixed-price work

Fixed-price and hourly lines share one invoice. Each line carries its quantity, rate and GST, and the totals stay consistent across the invoice and ledger.

Hourly engagements retain their rate and hours alongside the billable work.

Open the invoice editor
Four billable lines and one unbillable entry: $8,300.00 before GST, $830.00 GST and $9,130.00 payable.

Statements and balances

Statements bring together each client’s invoices, payment dates and outstanding balance. Unpaid invoices become overdue according to their due date.

Staff manage invoice statuses alongside the payment record. Invoices export as PDF documents; statements provide a print view of balances and payment history.

Open the invoice ledger
Paid, outstanding and overdue invoices, with status based on each due date.
Open the statement of account
Statement of account: $12,045.00 current and $4,620.00 aged 30–59 days, totalling $16,665.00 outstanding.
How the balance is reached
Invoiced
Paid
Outstanding
Settled in the periodBB-2026-0179, 0181, 0184 and 0188, each with a payment date recorded
$29,942.00
$29,942.00
$0.00
Current ageing bandBB-2026-0197 at 21 days and BB-2026-0201 at 6 days past due
$12,045.00
$0.00
$12,045.00
30 to 59 daysBB-2026-0193, the oldest of the three still unpaid
$4,620.00
$0.00
$4,620.00
Statement total
$46,607.00
$29,942.00
$16,665.00

Invoices, payments and BAS

Clients, invoices, payments, credits and expenses connect through the ledger. GST records roll into BAS periods for quarterly reporting.

The client portal gives each client access to their own statement. Views and downloads stay recorded with the account.

Financial records require authenticated access.

Invoices in

Supplier invoices are read from uploaded PDFs, with the extracted details available for review.

Money against them

Payments are their own records against an invoice, so a partial settlement and a split are simply several rows. Credits carry overpayment forward against a nominated invoice.

Quarterly

Expenses carry GST compliance fields and roll into BAS periods, which is the point at which the ledger stops being a list of invoices and starts being accounts.

One ledger for the business

Line-by-line GST, payment history and a deletion log keep the account traceable. The ledger belongs to the business.

Invoices, payments, credits and BAS periods stay together in a database the business owns.

Brontiq Books is live at brontiqbooks.com Invoices, payments, credits and BAS.

The ledger is a file you own.

Invoices, payments and account history stay together.

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