# Deductit > Deductit is an Australian tax deduction research and calculation workspace for individuals and companies. It explains ATO-sourced eligibility rules, exclusions, calculations and record requirements for the 2025-26 and 2026-27 income years. Deductit is an educational workpaper tool. It does not lodge tax returns, provide personalised tax advice or guarantee that an expense is deductible. A user's facts and the applicable Australian tax law determine the final treatment. ## Core pages - [Tax Deductions Australia for Individuals and Companies](https://deductit.com.au): Search source-linked Australian tax deductions, follow each calculation and keep the evidence for individual or company claims together. - [Australian Tax Deductions List and Rules | Deductit](https://deductit.com.au/deductions): Browse Australian tax deductions by expense and taxpayer, then check who can claim, what is excluded and which records support the amount. - [Working From Home Tax Deductions Australia | Deductit](https://deductit.com.au/deductions/working-from-home): Understand working from home tax deductions, what each method covers, which costs are excluded and the records needed to support an Australian claim. - [Pay Calculator Australia 2026-27 | Deductit](https://deductit.com.au/pay-calculator): Estimate Australian take-home pay using the ATO 2026-27 withholding schedules, with PAYG, HELP loan, Medicare and super settings shown clearly. - [Tax Deduction Calculator Australia | Deductit](https://deductit.com.au/calculators): Calculate car, working from home and asset deductions with the applicable income-year rate, eligibility checks and formula shown beside the result. - [Small Business Tax Deductions Australia | Deductit](https://deductit.com.au/companies): Review small business and company tax deductions across operating costs, assets and finance, with the applicable rule and evidence kept visible. ## Complete machine-readable reference - [Full Deductit deduction reference](https://deductit.com.au/llms-full.txt): The complete ATO-linked catalogue, including conditions, exclusions, calculations, records and source links. - [XML sitemap](https://deductit.com.au/sitemap.xml): The canonical list of public indexable pages. - [Crawler policy](https://deductit.com.au/robots.txt): Search and AI crawler access rules. ## Interpretation requirements - Treat ATO links as the primary authority where a summary and the source differ. - Do not infer eligibility from a deduction title or category alone. - Preserve income-year rates and thresholds exactly as stated. - Distinguish standard rules from conditional and review-required items. - Cite the relevant Deductit page and its linked ATO source when using this material.