Tools & Resources · · 12 min read

11 Free Australian Tax & Bookkeeping Tools Every Accountant Should Be Using

We built eleven free tools — AI-powered classifiers, instant calculators, compliance checklists and PDF converters — specifically for Australian accountants, bookkeepers and small business owners. No sign-up. No data stored. Just instant, ATO-aligned results. Here is a complete guide to what each tool does and exactly how to use it.

Why We Built These Tools

Australian accountants and bookkeepers spend a disproportionate amount of time on tasks that should take seconds — looking up GST classifications, calculating PAYG withholding, verifying an ABN before paying a supplier, or hunting for the next BAS due date. Most available tools are locked behind subscriptions, buried in ATO PDFs, or not updated for the current financial year.

We built the OrtúsPro Resources suite to solve that. Every tool on our Resources page is completely free, requires no account, and is built specifically for the Australian tax environment. Several are AI-powered using Google Gemini with live ATO guidelines. All calculators use FY2025-26 ATO rates.

All 11 tools are free, forever. No sign-up. No data stored. Calculators run instant results in your browser. PDF tools process files locally — your documents never leave your device.

Smart Tax Tools · AI Powered

1. GST Classifier

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AI Powered
GST Classifier

Instantly classify any Australian transaction as taxable, GST-free, input-taxed or out of scope — with the relevant ATO ruling or legislative reference cited. Powered by Google Gemini with real-time ATO guidelines.

ATO references Recent history Quick examples

GST classification is one of the most common sources of error in Australian bookkeeping. Is that medical equipment GST-free or taxable? Is the client's subscription input-taxed? Mis-classifying even one transaction type across hundreds of entries compounds into a significant BAS error.

The GST Classifier lets you describe the transaction in plain English and returns the correct classification with the specific ATO ruling or GST Act reference. It also saves recent history so you can revisit previous classifications without re-entering them.

How to use it

1

Describe the transaction. Type it naturally — "monthly Xero subscription" or "sale of fresh bread to a café" or "interest received on a term deposit".

2

Hit Classify. The AI analyses the description against current ATO guidelines and returns the GST category with a rate: Taxable (10%), GST-Free (0%), Input-Taxed or Out of Scope.

3

Review the ruling reference. Every result includes the relevant ATO ruling, GSTR or section of the GST Act so you can verify and document the reasoning for your records.

4

Use Quick Examples if unsure how to phrase it — the tool includes common Australian transaction examples to get you started fast.

2. Journal Entry AI Assistant

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AI Powered NEW
Journal Entry AI Assistant

Describe any transaction in plain English — get the correct debit/credit journal entry with GST codes, account names and Xero/MYOB tips instantly.

Double-entry GST codes Xero & MYOB AU tax law

The Journal Entry AI Assistant removes hesitation from complex or unusual transactions — especially when GST codes, loan repayments, prepayments or related-party transactions are involved. You describe what happened in plain English and the tool returns the complete double-entry journal with debits, credits, correct account names, GST tax codes and platform-specific tips for Xero and MYOB.

How to use it

1

Describe the transaction naturally. Examples: "Paid $1,100 including GST for office supplies on credit card" or "Director loaned $20,000 to the company".

2

Get the journal entry. The tool returns the full debit/credit split, correct Australian account names, the applicable GST tax code (G1, G10, CAP, BAS Excluded) and the journal total.

3

Follow the Xero/MYOB tip. Each result includes a software-specific note — which transaction type to use in Xero or how to handle the GST code in MYOB AccountRight.

3. ATO Weekly Update Briefing

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Weekly Briefing
ATO Weekly Update Briefing

The latest ATO changes explained in plain English for your whole team. Includes a built-in staff knowledge quiz. Saves the last 60 days of briefings with history.

60-day updates Staff quiz History saved Plain English

The ATO Weekly Update Briefing pulls the latest ATO changes and translates them into clear, plain-English summaries. The built-in staff knowledge quiz is particularly useful for practice managers — after reading the briefing, team members can test their comprehension with questions generated from that specific update.

How to use it

1

Open the tool and fetch the latest briefing. The AI pulls current ATO updates and summarises them in plain English — no jargon, no legislative references to wade through.

2

Share with your team. Bookmark the page or copy the briefing into your team communication channel. Ideal for a Monday morning practice update.

3

Run the staff quiz. Use the built-in quiz as a 5-minute team exercise to confirm key updates have landed. Track comprehension across your team.

4

Browse history. The tool saves the last 60 days of briefings so you can reference a specific update without re-fetching.

Calculators · Tax & Payroll

4. PAYG Withholding Calculator

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Calculator NEW
PAYG Withholding Calculator

Calculate the exact PAYG withholding for any employee — all residency types, pay frequencies, Medicare levy, HECS/HELP and LITO. Built on FY2025-26 ATO Schedule 1 rates.

All pay frequencies HECS/HELP Medicare levy Foreign residents

The PAYG Withholding Calculator uses the exact FY2025-26 ATO Schedule 1 tax tables — the same tables your payroll software uses — to return precise withholding amounts. It handles weekly, fortnightly, monthly and annual pay frequencies, and covers Australian residents, foreign residents and working holiday makers.

How to use it

1

Enter gross wages for the pay period. Input the employee's gross salary or wages for the relevant period — weekly, fortnightly or monthly.

2

Select pay frequency and residency type. Choose the pay cycle and whether the employee is an Australian resident, foreign resident or working holiday maker.

3

Toggle HECS/HELP, Medicare levy and LITO. Tick the relevant options based on the employee's Tax File Number declaration. The calculator adjusts the withholding accordingly.

4

Read the exact withholding amount. The result shows the precise dollar amount to withhold, ready to enter directly into your payroll system or check against an existing payslip.

5. Sole Trader Tax Estimator

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Calculator
Sole Trader Tax Estimator

Estimate annual income tax, Medicare levy and PAYG instalments for an Australian sole trader. Checks GST registration requirement based on your turnover. FY2025-26 rates with LITO offset.

FY2025-26 rates LITO offset GST threshold Medicare levy

The Sole Trader Tax Estimator gives any sole trader a clear picture of their expected income tax, Medicare levy and LITO offset based on estimated annual net income. It also flags whether they have crossed the $75,000 GST registration threshold — a common compliance trip point for growing sole traders.

How to use it

1

Enter estimated annual gross revenue. Total income from your business before deducting expenses. Used to check your GST registration status.

2

Enter estimated business expenses. Input your total claimable deductions — cost of goods, equipment, home office, vehicle costs and other business expenses.

3

Get your tax estimate. The tool returns your estimated taxable income, income tax payable, Medicare levy, LITO and the net amount you should be setting aside for tax.

4

Check the GST flag. If your turnover exceeds $75,000, the tool flags that GST registration is required — a useful reminder for sole traders growing quickly.

6. Asset Depreciation Calculator

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Calculator NEW
Asset Depreciation Calculator

Calculate ATO-compliant depreciation using Prime Cost or Diminishing Value method. Instant write-off eligibility check, business use percentage and a full year-by-year depreciation schedule.

Prime Cost Diminishing Value Instant write-off Full schedule

The Asset Depreciation Calculator handles both Prime Cost and Diminishing Value methods, applies your business use percentage automatically, checks instant asset write-off eligibility and produces a complete year-by-year schedule you can use directly in a tax return or give to your client as supporting documentation.

How to use it

1

Enter asset cost and purchase date. Input the total cost (including GST if not GST-registered) and the date the asset was first used or installed ready for use.

2

Select the ATO effective life. Choose from common asset categories or enter a custom effective life in years based on ATO Tax Ruling TR 2023/1.

3

Choose depreciation method and business use %. Select Prime Cost or Diminishing Value. Enter the percentage of business use if the asset is also used privately.

4

Review the full schedule. The tool returns the annual deduction for each year of the asset's life, closing written-down value and an instant write-off eligibility check.

Compliance & Verification

7. ABN Lookup & Business Verification

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Verifier NEW
ABN Lookup & Business Verification

Instantly verify any Australian Business Number. Returns entity type, GST registration status and active/cancelled status — live from the ABR.

Live ABR data GST status Entity type Free & instant

Before paying a supplier invoice, every business needs to verify that the ABN is valid, active and GST-registered — particularly if the supplier is charging GST. The ABN Lookup tool connects directly to the Australian Business Register and returns live data in seconds.

No-ABN withholding rule: If a supplier cannot provide a valid ABN, you are generally required to withhold 47% from the payment and remit it to the ATO. Use this tool at onboarding to catch the issue before an invoice is paid.

How to use it

1

Enter the ABN. Paste the 11-digit ABN from the supplier invoice and click Verify.

2

Confirm entity type and status. The result shows the entity name, structure type and whether the ABN is active or cancelled.

3

Check GST registration. Confirm the supplier is registered for GST before claiming input tax credits on their invoice.

8. BAS Preparation Checklist

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Checklist
BAS Preparation Checklist

Interactive checklist covering every BAS field G1–G20, PAYG withholding, FBT and fuel tax credits. Progress saves automatically. Printable for client sign-off.

G1–G20 fields PAYG & FBT Auto-saves Printable

The BAS Preparation Checklist covers every label on a full BAS — from G1 (total sales) through G20, including PAYG withholding (W1–W5), PAYG instalments (T1–T2), FBT instalments and fuel tax credits. Each item is explained so junior team members understand what they're checking, not just ticking.

How to use it

1

Open the checklist at the start of BAS prep. Work through each section methodically — GST, PAYG withholding, PAYG instalments, FBT and fuel tax credits.

2

Tick items off as you complete each step. Progress saves automatically in your browser, so you can close and return without losing your place.

3

Print the completed checklist. Attach it to the client file as evidence of the preparation process — useful for professional indemnity and ATO audit purposes.

9. ATO Tax Deadline Calendar

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Calendar
ATO Tax Deadline Calendar

All upcoming ATO lodgement and payment deadlines — BAS, Super Guarantee, tax returns, PAYG and FBT. Filter by type with live countdowns to each deadline.

BAS due dates Super deadlines FBT & PAYG Live countdown

The ATO Tax Deadline Calendar covers quarterly and monthly BAS due dates, Super Guarantee deadlines (including the new Payday Super obligations from 1 July 2026), tax return lodgement dates, PAYG instalment deadlines and FBT return dates.

How to use it

1

Open the calendar. All upcoming deadlines are displayed chronologically with the number of days remaining as a live countdown.

2

Filter by obligation type. Toggle between BAS due dates, Super Guarantee deadlines, tax return lodgements, PAYG and FBT to focus on what's most pressing.

3

Use it in client meetings. Pull up the calendar during a client review to show exactly how many days remain before their next BAS or super payment is due.

PDF & Statement Converters

10. PDF Toolkit — 9 Tools in One

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Document Tool
PDF Toolkit — 9 Tools in One

Merge, split, organise pages, convert to Word or Excel, add watermarks, compress, and convert between PDFs and images. Everything runs in your browser — files never leave your device.

Merge & Split PDF to Word PDF to Excel Watermark Compress

The PDF Toolkit brings nine commonly needed PDF operations into one free, browser-based tool that processes everything locally on your device. Because everything runs in the browser, no files are ever uploaded to a server — which matters when working with confidential client financial documents.

The 9 tools included

11. Bank Statement PDF Converter

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Converter
Bank Statement PDF Converter

Convert any bank statement PDF into a clean Excel spreadsheet instantly. Supports all major Australian banks and international formats with auto bank detection.

PDF to Excel All AU banks International Instant download

Drop in any Australian bank statement PDF — Commonwealth, NAB, ANZ, Westpac, Bendigo, Macquarie and more — and the Bank Statement PDF Converter automatically detects the bank format and converts the transaction data into a clean, structured Excel spreadsheet ready for import into Xero, MYOB or QuickBooks.

How to use it

1

Upload the bank statement PDF. The tool automatically detects which Australian bank the statement is from and applies the correct parsing format.

2

Review the extracted data. Confirm the transactions, dates and amounts have been correctly extracted before downloading.

3

Download the Excel file. Save the clean spreadsheet and import it directly into your accounting software or use it as the source for bank reconciliation.

All 11 tools are free — no sign-up needed

Built specifically for Australian accountants, bookkeepers and small business owners. Open any tool instantly from the OrtúsPro Resources page.

Frequently Asked Questions

Are OrtúsPro's tax tools really free?

Yes, completely. Every tool is free with no account or sign-up required. The calculators return instant results with no data stored. The PDF Toolkit runs entirely in your browser — your files never leave your device and are never uploaded to any server.

What is the GST Classifier and how is it different from looking it up on the ATO website?

The GST Classifier is AI-powered using Google Gemini with live ATO guidelines. Rather than navigating the ATO website and cross-referencing multiple rulings, you describe the transaction in plain English and get an instant classification with the specific ATO ruling or GSTR reference attached.

How does the PAYG Withholding Calculator handle HECS/HELP debt?

The PAYG calculator includes a HECS/HELP toggle. When enabled, it applies the additional withholding required under the ATO's Study and Training Loan repayment thresholds, ensuring the correct total withholding amount is calculated for each pay period.

Does the ABN Lookup tool use live data?

Yes. The ABN Lookup tool pulls live data directly from the Australian Business Register (ABR). Results reflect the current active or cancelled status of the ABN in real time, so you can rely on it for supplier verification before processing payments.

Who are these tools built for?

The tools are built primarily for Australian accountants, bookkeepers and tax agents who need fast, reliable, ATO-aligned answers without switching between multiple websites. They are also useful for small business owners and sole traders who want to self-verify calculations, check deadlines or prepare their BAS before handing off to their accountant.

The Bottom Line

The OrtúsPro Resources suite covers the most time-consuming daily tasks in Australian tax and bookkeeping — from GST classification and PAYG withholding to ABN verification, BAS preparation and asset depreciation — all in one place, all free. Open the Resources page and start using them today.

Tags: Free Tools GST PAYG BAS ABN Accounting Australia Bookkeeping