Registered and Reliable Local Hornsby & Sydney Bookkeeper and BAS Agent

BAS Made Simple. No Jargon. No ATO Surprises.

Whether you’re a sole trader or running a Pty Ltd, we get your data clean, your lodgements on time, and the ATO off your back.

Get My Free BAS Health Check

Quarter 1 Deadline (September 2026)

If you lodge your own BAS, your Quarter 1 payment and paperwork are due to the ATO by 28 October 2026.

Need more breathing room? Working with a registered agent like Organised Bookkeeping automatically pushes your lodgement and payment deadline out to 25 November 2026

The 3 Rules of BAS Success

Snap Receipts as You Go: Don't work in the past! Leaving receipts to EOFY means lost GST tax credits and potential audit nightmares.
Right Setup, Less Tax: Are you a Sole Trader or Company Director? Knowing your entity structure dictates how you pay yourself, what you can claim, and whether you need a Director ID.
Know Your Obligations: GST isn't yours, and PAYG witheld isn't a cash loan. Knowing what you owe before it's due is the secret to sleeping well at night.

Your BAS Readiness Checklist

Step 1: Your Business Setup

Structure Check: Are you trading under your personal name (Sole Trader) or a separate legal entity (Pty Ltd)? Tip: Ask us or your accountant if you aren't 100% sure.
GST & Payroll Registrations: Ensure your business is registered correctly for GST and PAYG Withholding if you hire staff.

Step 2: Where is Your Data Hiding?

We bring order to the chaos, no matter where your numbers currently live:

[x] Accounting Software (Xero, MYOB, QuickBooks)
[x] Spreadsheets & Shoe Boxes
[x] Unsorted PDF Receipts in Google Drive
[x] Paperwork sitting with a past accountant

Step 3: How & Who Lodges

Self-Lodge vs. BAS Agent: When you work with Organised Bookkeeping (a registered BAS Agent), you automatically get an extra 4 weeks to pay your quarterly BAS compared to lodging yourself.
Correct ATO Linking: We ensure your payments link to the exact right ATO reference number so your money never gets misallocated to the wrong tax account.

How We Get Your BAS Fully Organised

From cleaning up messy data to keeping the ATO happy, here is how we protect your time and cash flow.

Centralise Your Data

Whether your receipts live in Xero, spreadsheets, or a shoe box, we bring order to the chaos and ensure zero missing files.

Lock In Your 4-Week Extension

Stop rushing. As your registered BAS Agent, we automatically extend your lodgement and payment deadlines by 4 full weeks.

Accurate ATO Alignment

We link your accounts directly with the ATO so your tax payments always land in the right account without costly misallocations.

Protect Your GST & Cash Flow

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Zero ATO Surprises

We conduct regular health checks against the ATO portal to eliminate audit shocks, overdue interest, and late fees.

Interactive Business Tools & Tax Calculators

Take the guesswork out of your business compliance. Use our free interactive tools below to estimate your upcoming ATO tax bill, check your Payday Super risk, and discover hidden GST credits in under two minutes.

The BAS Tax Liability Calculator

The 2-Minute BAS Health Check & Audit Score

Payday Super & Payroll Compliance Checker