Free UK Child Maintenance Calculator
Independent Information Website
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Disclaimer

Important information about our independent UK child maintenance calculator, its estimates, the limitations of our content and the official Child Maintenance Service.

Independent UK Information Website Last updated: 8 November 2026
Important Disclaimer

Child Maintenance Calculator UK provides independent educational information and indicative payment estimates. Our calculator does not provide an official Child Maintenance Service assessment, legal decision or professional financial advice.

1. General Information

The information and tools available at child-maintenance-calculator.co.uk are provided for general informational and educational purposes.

Our website aims to help UK parents better understand how child maintenance payments may be calculated and which circumstances may affect those payments.

Website content may include payment calculators, information about the Child Maintenance Service (CMS), income-based calculations, shared care arrangements and other related topics.

The content should not be treated as an official determination of your rights, liabilities or child maintenance obligations.

2. Independent Website and Government Non-Affiliation

Child Maintenance Calculator UK is an independent information website.

We are not affiliated with, endorsed by, operated by or officially connected to:

  • The UK Government
  • GOV.UK
  • The Department for Work and Pensions (DWP)
  • The Child Maintenance Service (CMS)
  • HM Revenue & Customs (HMRC)

We do not issue official child maintenance assessments, enforce maintenance payments or act as an intermediary for CMS applications.

Official Government Website: The official child maintenance calculator is available at www.gov.uk/calculate-child-maintenance .

3. Child Maintenance Calculator Estimates

Our child maintenance calculator is designed to estimate possible payments using selected information entered by the visitor.

Depending on the calculator version and supported circumstances, the calculation may consider information such as:

Gross Income The paying parent's relevant income and selected payment frequency.
Qualifying Children The number of children for whom maintenance is being estimated.
Pension Contributions Certain eligible pension amounts that may affect relevant income.
Shared Care Overnight stays and related care arrangements.

The calculator may display estimated weekly, monthly and yearly amounts. These figures are illustrative and must not be interpreted as guaranteed payment obligations.

Monthly and yearly figures are conversions of an estimated weekly amount, rather than separate official CMS payment schedules.

Estimates Are Not Binding

A calculator result is not a CMS decision, court order, contractual agreement or legally enforceable maintenance assessment.

4. Calculation Accuracy and Limitations

We aim to base supported calculator methods on relevant published UK child maintenance rules.

However, independently developed calculation tools may not cover every circumstance that can affect an official CMS assessment.

A difference between our estimate and an official assessment may arise from:

  • Differences between user-entered income and information held by HMRC.
  • Eligible pension contributions and other permitted income adjustments.
  • The number of relevant children or separate maintenance arrangements.
  • Changes in financial or family circumstances.
  • Shared care evidence or disputes about overnight stays.
  • Special statutory calculation rules.
  • Rounding methods and the applicable effective dates.
  • Information unavailable to our calculator.

Calculator results should therefore be independently checked before being relied upon for important financial decisions.

5. Complex or Special Circumstances

Certain child maintenance cases may require additional information or a case-specific assessment.

Our calculator may not reliably determine payments involving:

  • Benefits that affect the applicable CMS calculation rate.
  • Equal day-to-day care arrangements.
  • Unusual or disputed shared care and overnight stays.
  • Self-employed income requiring additional verification.
  • Income variations, additional assets or exceptional expenses.
  • Multiple receiving parents or family-based arrangements.
  • Income exceeding the normal CMS assessment ceiling.
  • Court orders, international circumstances or disputed liability.

If your circumstances involve these or other exceptional issues, consult the Child Maintenance Service or a suitably qualified professional.

Check Your Circumstances with GOV.UK

The official government service provides information about calculating and arranging child maintenance.

Read Official CMS Calculation Guidance →

6. No Legal, Financial or Tax Advice

The information available through Child Maintenance Calculator UK is not personalised legal, financial or tax advice.

We do not act as solicitors, financial advisers, accountants or official CMS representatives through the provision of this website.

No professional advisory or solicitor-client relationship is created merely by visiting the website, reading content or using a calculator.

If you require advice about your personal legal obligations, disputes, appeals, enforcement or financial arrangements, seek assistance from an appropriate professional or official authority.

7. Your Responsibilities

Users are responsible for entering information that is as accurate and complete as reasonably possible.

Estimates generated from incorrect, incomplete or outdated inputs may be inaccurate.

Before making important decisions, users should:

  • Confirm that income information and other details are correct.
  • Check the applicable CMS guidance and rules.
  • Verify any official obligation with the appropriate authority.
  • Seek professional advice where needed.
  • Consider changes in personal circumstances.
Important Payment Reminder

Do not stop, withhold or unilaterally change payments required under an existing CMS decision or court order solely because an independent calculator shows a different amount.

8. Changes to Child Maintenance Rules

Child maintenance legislation, government guidance, payment rates and administrative procedures may change.

We aim to review and update content when relevant changes become known.

However, we cannot guarantee that every website page or calculation method reflects every recent change at all times.

Where available, visitors should refer to the publication and review information provided on individual pages.

Our Calculation Methodology and Editorial Policy provide further information about our intended approach to accuracy and transparency.

9. External Websites and Resources

Our website may contain links to external resources, including official government websites and other information providers.

These links are provided to help visitors find additional information or verify important details.

We do not control third-party websites and cannot guarantee their continued availability, accuracy or content.

External services may operate under their own terms and privacy policies.

Linking to a government resource does not imply endorsement, sponsorship or a formal relationship with that organisation.

10. Liability and Your Legal Rights

We aim to provide useful and clearly explained information, but the website is an independent informational service.

We do not make official CMS decisions and cannot guarantee that our estimates will match an official assessment in every case.

Visitors should not rely exclusively on website content for decisions that have significant legal or financial consequences.

Statutory Rights

Nothing in this Disclaimer excludes or restricts liability for fraud, fraudulent misrepresentation, death or personal injury caused by negligence, or any other liability that cannot lawfully be excluded.

Nothing in this Disclaimer removes mandatory consumer rights or other statutory protections available under applicable law.

Any limitation of responsibility must be read subject to those rights and legal requirements.

11. Advertising and Third-Party Offers

Child Maintenance Calculator UK may introduce advertising, including Google AdSense, to support the operation of its free resources.

Advertising content is separate from official CMS guidance and does not represent a recommendation from the UK Government.

Advertisements may lead to websites or services operated by other businesses. Those businesses are responsible for their own products, services and representations.

Advertising or commercial relationships should be appropriately disclosed wherever applicable.

12. Updates to This Disclaimer

We may update this Disclaimer when website functionality, calculator methods, relevant guidance or legal requirements change.

Revised versions will be published on this page with an appropriate update date.

Important changes affecting the nature or limitations of our services may also require changes to related website policies and content.

13. Contact Information

If you have questions about this Disclaimer, find an error in our content or wish to raise concerns about a calculation, please contact the website operator.

Website: child-maintenance-calculator.co.uk

Website Operator: [INSERT REAL LEGAL OR BUSINESS NAME]

Contact Email: [INSERT VERIFIED CONTACT EMAIL]

Contact Page: Contact Us

Have a Question About Our Calculator?

Contact us to report a possible calculation problem, provide feedback or request clarification about information published on this website.

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