Terms of use


Last updated: 12 September 2026 Welcome to CS17 Tax Calculator. By accessing or using this website and its calculator tools, you agree to these Terms of Use.

1. About CS17 Tax Calculator

CS17 Tax Calculator is part of the CS17 Tools collection and provides browser-based tools for calculating GST, VAT, sales tax, consumption tax and other common transaction taxes. The calculator supports multiple countries and, where appropriate, different national, state, provincial, regional and local tax rates.

2. General Information Only

CS17 Tax Calculator is provided as a general-purpose calculation tool. The website does not provide tax, accounting, financial, legal or other professional advice. Results produced by the calculator should not be treated as confirmation that a particular transaction, product or service is taxable or that a particular tax rate legally applies.

3. Accuracy of Calculations

We aim to provide useful and accurate calculations. However, we do not guarantee that every calculation, tax rate, formula or displayed result will always be accurate, complete or current. Results may be affected by:
  • The information entered by the user
  • The country or region selected
  • The tax rate selected
  • Local or additional tax rates
  • Rounding
  • Changes to tax laws or rates
  • Special tax rules or exemptions
  • The type of goods or services involved
You are responsible for checking that the information and tax rate used are appropriate for your circumstances.

4. Tax Rates

CS17 Tax Calculator may provide preset tax rates for supported countries, states, provinces or territories. These rates are provided for convenience and general calculation purposes. Tax rates and rules can change, and different rates may apply to particular products, services, businesses, customers or transactions. Where multiple rates are available, you are responsible for selecting the appropriate rate.

5. United States Sales Tax

Sales tax in the United States can vary between states and may also include county, city or other local taxes. The calculator may provide a state sales-tax rate and allow users to enter an additional local rate. The displayed state rate does not necessarily represent the complete tax rate applicable at a particular address or to a particular transaction. Users should confirm applicable state and local sales-tax requirements before relying on a calculation.

6. Canadian Taxes

Canadian transaction taxes may include GST, HST, PST, QST, RST or combinations of federal and provincial taxes. Rates and tax treatment can vary between provinces and territories and according to the goods or services involved. The rates provided by CS17 Tax Calculator are general reference rates and should be independently confirmed where accuracy is important.

7. Reduced, Zero and Special Tax Rates

Some countries apply different tax rates to different categories of goods and services. The availability of a reduced or zero-rate option in the calculator does not mean that your particular transaction qualifies for that rate. You are responsible for determining the appropriate tax classification.

8. Custom Tax Rates

CS17 Tax Calculator may allow users to enter a custom tax rate. When a custom rate is entered, the calculator may use that rate instead of the preset rate. CS17 Tools is not responsible for the accuracy or suitability of tax rates manually entered by users.

9. Tax Rate Updates

CS17 Tax Calculator may periodically check government, tax authority or other reference sources to assist with maintaining tax-rate information. The availability of an automatic or manual tax-rate checking feature does not guarantee that all rates will always be updated immediately after a tax change occurs. Where a source cannot be reliably interpreted, the calculator may retain previously validated information rather than automatically replacing it with potentially incorrect data. Users should independently confirm current tax rates when accuracy is important.

10. Professional and Business Use

Businesses, accountants, bookkeepers and other professional users may use CS17 Tax Calculator as a convenient calculation aid. However, the calculator should not replace appropriate accounting software, professional advice, tax authority information or legally required tax calculations. Important business transactions, tax returns, invoices and regulatory obligations should be independently checked.

11. Information Entered Into the Calculator

Amounts, rates and other information entered into CS17 Tax Calculator are generally processed within your web browser for the purpose of performing the requested calculation. The calculator is not designed to require confidential or personally identifiable information. You should avoid entering sensitive or confidential information into calculator fields.

12. Availability of the Website

We aim to keep CS17 Tax Calculator available and functioning correctly, but continuous availability is not guaranteed. The website may occasionally be unavailable because of maintenance, hosting problems, software updates, technical failures or circumstances outside our control. We may modify, update, replace or discontinue calculator features at any time.

13. External Sources and Websites

CS17 Tax Calculator may provide links to government tax authorities, reference sources, other CS17 Tools websites or third-party websites. External websites operate independently and may have their own terms, privacy policies and practices. CS17 Tools is not responsible for the availability, accuracy, content or practices of third-party websites.

14. Intellectual Property

Unless otherwise stated, the CS17 Tax Calculator design, branding, written content, calculator interface, software and other original material are owned by or licensed to CS17 Tools. You may use the website for normal personal, educational and business calculations. You may not copy, reproduce, republish, distribute, sell, commercially exploit or present substantial parts of the website, software or original content as your own without permission, except where permitted by law.

15. Acceptable Use

You must not intentionally misuse CS17 Tax Calculator or interfere with its normal operation. This includes attempting to damage the website, introduce malicious software, bypass security measures, gain unauthorised access to systems or use automated methods that place an unreasonable load on the website or its hosting infrastructure.

16. Advertising

CS17 Tax Calculator may display advertising or use third-party advertising services. Advertising providers may use cookies or similar technologies in accordance with their own privacy policies and applicable laws. The appearance of an advertisement on CS17 Tax Calculator does not necessarily mean that CS17 Tools recommends or endorses the advertised product, service or organisation.

17. Limitation of Liability

To the maximum extent permitted by law, CS17 Tools is not liable for any loss, damage, cost, expense, penalty, tax liability or other consequence arising from the use of, inability to use or reliance upon CS17 Tax Calculator or results produced by the calculator. This includes consequences resulting from incorrect user input, incorrect tax-rate selection, outdated tax information, local tax differences, rounding, software errors, technical failures or reliance on a calculation without appropriate independent verification. Nothing in these Terms excludes, restricts or modifies any consumer guarantee, right or remedy that cannot lawfully be excluded under the Australian Consumer Law or other applicable legislation.

18. Privacy

Use of CS17 Tax Calculator is also subject to our Privacy Policy. The Privacy Policy explains how information may be handled when you access and use the website.

19. No Account Required

You do not currently need to create an account to use CS17 Tax Calculator. If account-based features are introduced in the future, additional terms may apply.

20. Changes to These Terms

We may update these Terms of Use when CS17 Tax Calculator, our services, tax-related functionality or applicable legal requirements change. Updated Terms will be published on this page with a revised Last updated date. Continued use of the website after changes are published constitutes acceptance of the updated Terms to the extent permitted by law.

21. Governing Law

These Terms of Use are governed by the laws of New South Wales, Australia. Nothing in these Terms limits any rights you may have under the Australian Consumer Law or other rights that cannot legally be excluded or restricted.

22. Contact Us

If you have a question about these Terms of Use or CS17 Tax Calculator, please contact: CS17 Tools Email: admin@cs17.net

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