Understanding Variations and Special Circumstances

Important: Ordinary Debt Is Not Automatically a Variation

General financial hardship, credit cards, loans or other consumer debt do not automatically reduce child maintenance. A debt must fall within a statutory special-expense ground. Former-relationship debt is therefore a narrow category, and evidence needs to show why the particular liability qualifies under the rules.

Most Child Maintenance Service (CMS) calculations are based on income information provided by HM Revenue & Customs (HMRC). However, there are situations where a parent believes the standard calculation does not accurately reflect their circumstances.

To help address these situations, the law allows certain applications known as Variations.

A variation allows CMS to consider specific circumstances that may not be fully reflected in the standard child maintenance calculation.

Variations can be important for both Receiving Parents and Paying Parents.

For Paying Parents, variations may be relevant where:

• Significant travel costs are incurred to maintain contact with a child.
• Certain special expenses exist.
• Income figures used are inaccurate.
• Relevant financial circumstances are not reflected in the assessment.

For Receiving Parents, variations may be relevant where concerns exist regarding:

• Additional income not included in calculations.
• Assets generating income.
• Income diversion arrangements.
• Hidden income concerns.

This guide explains the variation process, evidence requirements, legal safeguards, and rights of challenge.

What Is A Variation?

A variation is a formal request asking CMS to consider circumstances outside the standard child maintenance calculation.

The purpose is to ensure that maintenance assessments are as fair and accurate as possible.

Variations are governed by legislation and specific regulations within the child maintenance system.

Why Variations Matter

Without a variation, a calculation may not fully reflect:

• A parent's actual financial position.
• Significant child contact costs.
• Additional sources of income.
• Certain assets.
• Exceptional circumstances.

Variations exist to help achieve a fairer outcome where evidence supports the request.

Additional Income

In some circumstances, income may exist that is not fully reflected within the standard HMRC income figure.

Examples may include:

• Certain investment income
• Property income
• Dividends
• Other qualifying income sources

Where legislation allows, a variation request may ask CMS to consider relevant income that affects the fairness of the assessment.

Evidence may include:

• Tax returns
• Dividend statements
• Investment records
• Rental income records
• Financial accounts

Assets

Certain assets may be relevant in specific circumstances.

Examples may include:

• Property assets
• Land holdings
• Investments
• Significant capital assets

The existence of an asset does not automatically mean a variation will apply.

Evidence is usually required to demonstrate how the asset is relevant under child maintenance legislation.

Examples may include:

• Land Registry records
• Property valuations
• Financial statements
• Asset ownership records

Travel Costs

One of the most important variation categories for many Paying Parents involves travel expenses associated with maintaining a relationship with their child.

Examples may include:

• Long-distance travel
• Ferry costs
• Rail travel
• Air travel
• Significant fuel costs

Travel expenses can be particularly relevant where a child lives a considerable distance away.

Contact Costs

Maintaining meaningful relationships with children often involves unavoidable costs.

Examples may include:

• Transport expenses
• Accommodation costs during contact
• Travel arrangements associated with parenting responsibilities

Evidence may include:

• Fuel receipts
• Rail tickets
• Ferry bookings
• Hotel receipts
• Travel invoices

Good record keeping is essential.

Special Expenses

Some parents incur unusual or exceptional expenses which may be relevant under variation rules.

Examples may include:

• Certain travel costs
• Certain educational expenses
• Costs relating to disabilities or health needs
• Other qualifying circumstances recognised under legislation

Each case will depend upon individual facts and supporting evidence.

Does CMS take account of debts?

Generally, no.

The standard CMS calculation is based mainly on the paying parent's gross income obtained from HMRC, together with factors such as:

• number of qualifying children
• overnight stays
• certain other children living in the paying parent's household

Ordinary debts such as:

• credit cards
• loans
• overdrafts
• council tax arrears
• utility arrears
• bankruptcy debts

do not usually reduce child maintenance. CMS considers child maintenance a first-call responsibility.

What if both parents are heavily in debt?

CMS still focuses on:

• the paying parent's income
• the child's needs

The receiving parent's debts are normally irrelevant to the calculation.

A receiving parent owing:

• HMRC
• creditors
• mortgage arrears

does not increase maintenance.

Likewise, a paying parent's debts do not automatically reduce maintenance.

Can a paying parent ask for a variation because of debts?

Possibly, but only in limited circumstances.

A variation is a formal request to change the calculation because the standard HMRC income figure does not properly reflect the parent's financial circumstances.

Variations are usually used for things such as:

• unearned income
• diverted income
• assets generating income
• certain special expenses

Not simply because someone has ordinary debt.

Special expenses variation

Under the child support legislation, certain expenses may be considered, including:

• costs of maintaining another child in special circumstances
• contact costs in some situations
• debts from the former relationship incurred for the benefit of the family before separation

The last category is often the most relevant.

Examples may include:

• joint family loans
• family mortgage liabilities
• debts incurred during the relationship for family purposes

The paying parent must provide evidence and CMS decides whether the debt qualifies. Not every debt is accepted. The fact that a debt exists is not enough. It must fall within the statutory variation rules.

If both parents owe each other money

CMS generally does not offset unrelated debts against child maintenance.

For example:

• Parent A owes Parent B ** under a civil judgment.
• Parent B owes child maintenance.

CMS will usually continue to pursue the child maintenance separately because the maintenance belongs for the benefit of the child.

What happens if the paying parent cannot pay because of debt?

If maintenance is not paid:

CMS can:

• make deductions from wages
• deduct from pensions
• deduct from benefits
• take money from bank accounts
• obtain a liability order
• pursue enforcement through the courts

Even where the paying parent is experiencing debt problems, arrears can continue to accumulate.

Bankruptcy and child maintenance

A very important exception:

Child maintenance arrears are generally not wiped out by bankruptcy.

A person may be discharged from bankruptcy yet still owe:

• ongoing child maintenance
• child maintenance arrears

because child maintenance has special legal status.

If the debt arose from the former family relationship

What debts can qualify?

CMS guidance generally looks for debts that:

1. Were taken out before the relationship ended.
2. Were incurred for the joint benefit of the family.
3. Are still being repaid by the paying parent.
4. Have not already been accounted for elsewhere in the calculation.

Examples that may qualify:

Joint loan used for family living costs.

Loan used to buy essential household items.

Debt used to fund the family home.

Family-related liabilities arising from the relationship.

Examples that usually do not qualify:

Credit card spending for personal purchases.

Debts taken out after separation.

Business debts unrelated to family needs.

General financial hardship or ordinary consumer debt without evidence of family benefit.

How to apply

Step 1: Contact CMS

Tell CMS you want to make a Variation Application for Special Expenses – Prior Family Debt.

You can:

• call CMS and request a variation application
• write to CMS explaining the grounds

Ask specifically for consideration of:

"debts incurred before separation for the benefit of the family."

Step 2: Gather evidence

The strongest applications contain documentary evidence showing:

The debt exists

• Loan agreements
• Credit agreements
• Mortgage documents
• Court orders
• Statements

The debt was incurred before separation

• Account opening dates
• Loan dates
• Historical statements

The debt benefited the family

Examples:

• Furniture receipts
• Home improvement invoices
• Mortgage records
• Family holiday booked for the family
• Utility arrears incurred while living together
• Evidence showing money was used for household expenses

Step 3: Write a chronology

A clear timeline helps enormously.

Example:

March 2018 – Joint loan of ** obtained.

Funds used for kitchen replacement and household expenses.

September 2021 – Parties separated.

I remained solely liable for repayments.

Current monthly repayment of **.

CMS caseworkers often understand a straightforward chronology better than hundreds of pages of documents.

Step 4: Explain why the debt was for family benefit

This is the most important part.

Don't simply say:

"I have debt."

Instead you can say:

Example:

"The loan was obtained during the relationship to replace the family boiler and pay household expenses. The children lived in the property and benefited directly from the expenditure."

The connection between the debt and the family benefit is what CMS is looking for.

If CMS refuses

You can:

1. Request a Mandatory Reconsideration.
2. Appeal to the First-tier Tribunal.

At appeal, tribunals frequently focus on:

• whether the debt existed before separation
• whether the debt genuinely benefited the family
• whether the evidence supports the claim

Evidence that tends to be persuasive

Strong:

• Joint loan agreements
• Bank statements tracing expenditure
• Mortgage documents
• Receipts and invoices
• Family court orders

Weak:

• Personal statements without documents
• General claims of hardship
• Unexplained credit card balances

Practical template

You could write to CMS:

I request a variation under the Special Expenses provisions relating to debts incurred before separation for the benefit of the family.

The debt was incurred on [date] while the parties were living together.

The funds were used for [family purpose].

The relationship ended on [date].

I remain responsible for repayments of £[amount] per month.

I attach evidence of the debt, its purpose, and the ongoing repayments.

One important point:

CMS only considers these debts in quite a narrow way. Many applications fail because the parent proves the debt exists but does not prove how it benefited the family. The strongest cases trace the money from the loan directly to family expenditure.

https://www.gov.uk/government/publications/child-maintenance-how-paying-parents-can-ask-us-to-consider-other-income-factsheet

The legal basis

The variation rules come from:

• Child Support Act 1991
• Child Support (Variations) Regulations 2000

The regulations allow CMS to consider certain qualifying debts when calculating child maintenance.

Relevant legislation

The main legal framework is:

• Child Support Act 1991
• Child Support Maintenance Calculation Regulations 2012
• Child Support (Variations) Regulations 2000
• CMS Operational Guidance issued by the Department for Work and Pensions (DWP)

These contain the rules on:

• maintenance calculations
• special expenses
• variations
• enforcement
• arrears recovery

Hidden Income Concerns

Concerns are sometimes raised that income available to a parent is not fully reflected in the standard CMS calculation.

Examples may include allegations involving:

• Income diversion
• Company structures
• Dividend arrangements
• Undeclared income
• Assets generating income

CMS should consider evidence carefully and make decisions based on facts rather than assumptions.

Evidence Standards

Strong evidence is often essential when requesting a variation.

Useful evidence may include:

Financial Records

• Tax returns
• Bank statements
• Company accounts
• Dividend records

Employment Records

• Payslips
• Payroll information
• Employment contracts

Travel Records

• Tickets
• Receipts
• Booking confirmations
• Mileage records

Asset Records

• Property documents
• Investment statements
• Valuations

Specialist Evidence

• Medical evidence
• Educational evidence
• Professional reports

where relevant.

Advanced Claimant Protection

Variation decisions can significantly affect maintenance calculations.

Parents should understand their rights.

Right To Fair Treatment

CMS should act fairly and reasonably.

Right To Evidence-Based Decision Making

Decisions should be supported by evidence.

Right To Be Heard

Relevant information should be considered.

Right To Transparency

Parents should understand how decisions are reached.

Right To Challenge Decisions

Review and appeal routes should remain available.

Right To Accurate Records

Information relied upon should be accurate.

Common Concerns Raised By Paying Parents

Paying Parents frequently report concerns regarding:

• Travel costs not fully recognised.
• Relevant evidence being overlooked.
• Income information being inaccurate.
• Special expenses not being considered.
• Variation requests being refused without sufficient explanation.

Good evidence and clear submissions often improve the quality of decision-making.

If You Believe Evidence Has Been Ignored

Where concerns exist:

Request An Explanation

Ask:

• What evidence was considered?
• What evidence was rejected?
• Why was it rejected?

Submit Additional Evidence

Provide supporting documents where available.

Keep Copies

Retain copies of everything submitted.

Request Mandatory Reconsideration

Seek a formal review where appropriate.

Appeal To An Independent Tribunal

Where appeal rights exist.

Preparing A Strong Variation Request

Good practice includes:

Clearly Identify The Circumstance

Explain what variation is sought.

Provide Evidence

Support assertions with documents.

Explain The Financial Impact

Describe how the circumstance affects fairness.

Organise Evidence Clearly

Use an evidence index where possible.

Keep Copies Of Everything

Retain records indefinitely.

Data Protection Rights

Parents may have rights to:

Access Information Held

Through a Subject Access Request (SAR).

Correct Inaccurate Records

Where information is wrong.

Challenge Data Accuracy

Where records affect calculations.

Relevant Legislation

Key legislation includes:

Child Support Act 1991

The primary child maintenance legislation.

Child Maintenance and Other Payments Act 2008

Provides the framework for the current CMS system.

Child Support Maintenance Calculation Regulations

Sets out how maintenance is calculated.

Child Support Variations Regulations

Provides rules regarding variation applications.

Human Rights Act 1998

Supports fairness and procedural rights.

Data Protection Act 2018

Protects personal information.

UK GDPR

Supports record accuracy and transparency.

Accountability And Oversight

CMS remains accountable to:

• Independent Tribunals
• Courts
• Independent Case Examiner (ICE)
• Parliamentary and Health Service Ombudsman
• Information Commissioner's Office (ICO)
• Parliament

These bodies provide oversight where concerns arise regarding decision-making, evidence handling, maladministration, or procedural fairness.

Useful Government Resources

Child Maintenance Service

https://www.gov.uk/child-maintenance-service

Child Maintenance Variations Guidance

https://www.gov.uk/government/publications/child-maintenance-how-we-work-out-child-maintenance

Child Maintenance Calculator

https://www.gov.uk/calculate-child-maintenance

Mandatory Reconsiderations & Appeals

https://www.gov.uk/child-maintenance-service/disagreements-about-parentage-or-payments

Appeal A Child Maintenance Decision

https://www.gov.uk/appeal-child-maintenance-decision

Independent Case Examiner

https://www.gov.uk/government/organisations/independent-case-examiner

Information Commissioner's Office

https://ico.org.uk

Variations Protection Checklist

• Identify the relevant variation category

• Gather strong evidence

• Keep receipts and travel records

• Retain financial documents

• Organise evidence clearly

• Request explanations where evidence is rejected

• Keep copies of submissions

• Challenge inaccuracies promptly

• Request Mandatory Reconsideration where appropriate

• Consider appeal rights if necessary

Key Message

Variations exist to help ensure child maintenance calculations reflect important circumstances that may not be fully captured within standard income assessments. Whether concerns relate to additional income, assets, travel costs, contact costs, special expenses, or hidden income allegations, decisions should be evidence-based, transparent, and fair.

For Paying Parents in particular, maintaining detailed records of travel expenses, contact-related costs, financial circumstances, and supporting evidence can be essential when seeking a fair assessment. Understanding your rights, presenting organised evidence, and challenging incorrect decisions promptly can help protect against inaccurate calculations and disputed liabilities.