Estate Planning UK 2026 — Wills, LPA, Probate and Inheritance Tax Guide

Setting Up a Trust for Children UK 2026 — Complete Guide

How to set up a trust for your children in the UK. Compare bare trusts, discretionary trusts, and 18-25 trusts. Tax rules, costs, and step-by-step process explained.

If you are planning wills, attorney roles, probate steps, and family handover tasks together, use the Estate Planning Hub for the full route map.

Trusts can be an excellent way to pass assets to children while maintaining some control. But choosing the right type and understanding the tax implications is essential.

Types of Trusts for Children

Comparison Table

FeatureBare TrustDiscretionary Trust18-25 Trust
Child’s ownershipAbsoluteAt trustees’ discretionConditional on age
Access age18 (automatic)Trustees decide18-25
Tax on incomeChild’s rates45% (trust)45% (trust)
Tax on gainsChild’s rates20%20%
IHT on creationPET (7-year rule)20% if over NRB20% if over NRB
ComplexityLowHighMedium
Setup costFree-£500£1,000-£3,000£1,000-£2,500
Annual costsMinimal£200-£500/year£200-£500/year

Bare Trusts Explained

What Is a Bare Trust?

A bare trust is the simplest form:

  • Child is the absolute beneficial owner
  • Trustee only holds legal title until child is 18
  • At 18, child can demand all assets
  • No discretion — child has full entitlement

Tax Treatment of Bare Trusts

TaxTreatment
Income taxChild’s personal allowance (£12,570)
Savings incomeChild’s starting rate band + PSA
Dividend incomeChild’s dividend allowance (£500)
Capital gainsChild’s annual exemption (£3,000)
IHT on creationPET — exempt if survives 7 years

Important parental exception: If a parent creates a bare trust for their own child under 18 and income exceeds £100/year, it’s taxed as the parent’s income. This doesn’t apply to grandparents, aunts/uncles, or others.

Setting Up a Bare Trust

DIY Method:

  1. Write a simple trust declaration stating:
    • You’re holding assets on trust for [child’s name]
    • Child becomes absolutely entitled at 18
    • Sign and date
  2. Open an investment account in your name “as trustee for [child]”
  3. Transfer assets or cash into the account

Professional Setup:

  • Solicitor can draft formal trust deed (£300-£500)
  • Ensures legal certainty
  • Recommended for larger amounts

Bare Trust Investment Options

Platform/AccountSetupAnnual ChargeNotes
Hargreaves LansdownFree0.45%Wide investment choice
Interactive InvestorFree£4.99/monthFixed platform fee
VanguardFree0.15%Low-cost index funds
AJ BellFree0.25%Good value
FidelityFree0.35%User-friendly

Discretionary Trusts Explained

What Is a Discretionary Trust?

Trustees have complete discretion over:

  • Who benefits (from a class of beneficiaries)
  • When to distribute
  • How much to distribute
  • What form distributions take

Why Use a Discretionary Trust?

ReasonExplanation
ControlPrevent child accessing funds too young
FlexibilityChange beneficiaries if circumstances change
Asset protectionShield from divorce, bankruptcy
Multiple beneficiariesSplit between children as needed
Special needsProtect benefits eligibility
Spendthrift childTrustees manage responsibly

Tax Treatment of Discretionary Trusts

TaxRate
Income tax (interest)45% (after £500 band at standard rate)
Income tax (dividends)39.35%
Capital gains tax20% (24% on property)
Annual CGT exemption£1,500 (half individual rate)

IHT on creation:

  • Gifts into discretionary trusts are “chargeable lifetime transfers”
  • If over the nil-rate band (£325,000), 20% IHT immediately
  • Periodic charges: 6% every 10 years on value over NRB
  • Exit charges when assets leave the trust

Setting Up a Discretionary Trust

Required documents:

  1. Trust deed — sets out rules and beneficiaries
  2. Letter of wishes — guidance for trustees (non-binding)
  3. Trustee appointment forms

Trustees:

  • Need minimum of 2 trustees (or a trust corporation)
  • Often parents plus another family member
  • Can include professional trustee for large trusts
  • Up to 4 individual trustees maximum

Costs:

ServiceTypical Cost
Trust deed drafting£1,000-£3,000
Annual tax return£200-£500
Trust accounts£200-£400
Professional trustee fees£500-£2,000/year
10-year IHT review£500-£1,000

18-25 Trusts

What Is an 18-25 Trust?

A special type of trust (technically a “relevant property trust”) where:

  • Child must receive capital by age 25
  • Created in a will for your own child
  • Reduced IHT charges compared to discretionary
  • Income during trust taxed at trust rates

When to Use 18-25 Trusts

SituationSuitability
Want child to get assets between 18-25Good choice
Concerned about 18 being too youngGood choice
Want trustees to have discretion until 25Good choice
Want indefinite trustee controlUse discretionary instead
Creating trust during lifetimeCannot use — will only

Tax Treatment

TaxTreatment
Income45%/39.35% (trust rates)
CGT20%/24%
IHT on creationVia will — uses NRB
IHT exit charge (18-25)Reduced rate (max 4.2%)

Trust Tax Returns

When Returns Are Required

Trust TypeTax Return Needed?
Bare trust (income under £500)No
Bare trust (income over £500)Simplified reporting
Discretionary trustYes — annual SA900
18-25 trustYes — annual SA900

Filing Requirements

ReturnDeadline
Trust self-assessment (SA900)31 January following tax year
Paper return31 October
Registration with Trust Registration ServiceWithin 90 days of creation

Trust Registration Service

Since 2022, most trusts must register:

  • Discretionary trusts — must register
  • Bare trusts with tax liability — must register
  • Bare trusts with UK tax implications — must register
  • Online registration via GOV.UK
  • Annual confirmation required

Practical Considerations

Choosing Trustees

ConsiderationNotes
Number2-4 individuals typical
RelationshipFamily members, close friends
AgeConsider who’ll be around long-term
CompetenceMust be willing and capable
ProfessionalConsider for large trusts
ReplacementInclude mechanism in deed

What Trusts Can Hold

AssetBare TrustDiscretionary Trust
CashYesYes
Quoted sharesYesYes
Investment fundsYesYes
PropertyYes (complex)Yes
Life insuranceYesYes
Private company sharesPossibleYes
CryptocurrencyPossiblePossible

Letter of Wishes

Not legally binding but guides trustees:

  • When you’d like distributions made
  • What you’d like money used for (education, house deposit)
  • Any concerns about beneficiaries
  • How to balance between beneficiaries
  • Update regularly as circumstances change

Trust vs Other Options

Trust vs Junior ISA

FeatureTrustJunior ISA
Annual limitUnlimited£9,000
Tax on growthVaries by trust typeTax-free
Access ageVaries18
ControlTrusteesChild at 18
Investment choiceFull rangePlatform dependent
ComplexityHigherLow

Trust vs Child Pension

FeatureTrustChild Pension
Annual limitUnlimited£3,600
Tax reliefNone25% added
Access ageVaries57+
Tax on growthVariesTax-free

When to Use Each

GoalBest Option
University fund (age 18)Junior ISA or bare trust
House deposit (age 25+)Discretionary trust or bare trust
Long-term wealth buildingMix of JISA + trust
Retirement provisionChild pension
Flexibility on timingDiscretionary trust
Protect from child’s poor decisionsDiscretionary trust

Step-by-Step: Setting Up a Bare Trust

DIY Process

  1. Decide on trustee(s)

    • Usually yourself
    • Can add co-trustee for security
  2. Write trust declaration

    Declaration of Bare Trust
    
    I, [Your Name], declare that I hold the following assets
    on bare trust for [Child's Name], born [Date of Birth]:
    
    [Description of assets or "all assets held in Account X"]
    
    [Child's Name] is absolutely entitled to these assets
    and shall have the right to demand transfer of full
    legal title on reaching age 18.
    
    Signed: ________________
    Date: ________________
    
  3. Open trust account

    • Choose investment platform
    • Open in “[Your Name] as trustee for [Child’s Name]”
    • Provide child’s details
  4. Transfer assets

    • Cash contributions
    • Transfer existing investments
    • Keep records of all contributions
  5. Keep records

    • Trust declaration
    • All contributions and dates
    • Investment statements
    • Any income received

Step-by-Step: Setting Up a Discretionary Trust

Professional Process

  1. Consult solicitor or trust specialist

    • Explain goals and concerns
    • Discuss tax implications
    • Get fee quote
  2. Draft trust deed

    • Defines trustees, beneficiaries, powers
    • Usually takes 1-2 weeks
    • Review carefully before signing
  3. Execute deed

    • Sign with witness
    • Trustees all sign
  4. Register trust

    • Trust Registration Service within 90 days
    • Obtain Unique Taxpayer Reference
  5. Transfer assets

    • Consider IHT implications
    • Keep within nil-rate band if possible
    • Or expect 20% immediate charge
  6. Ongoing administration

    • Annual tax return
    • Investment management
    • Trustee meetings/decisions
    • 10-year reviews

Costs Summary

Trust TypeSetup CostAnnual Costs
Bare trust (DIY)FreeMinimal
Bare trust (solicitor)£300-£500Minimal
Discretionary trust£1,000-£3,000£500-£1,500
18-25 trust (in will)Part of will cost£500-£1,500

Common Questions

Can I Change My Mind?

Trust TypeRevocable?
Bare trustNo — assets belong to child
Discretionary trustUsually no — but trustees have flexibility
Power of appointmentCan redirect within beneficiary class

What If Child Dies Before 18?

  • Bare trust: Assets pass via child’s estate
  • Discretionary trust: Redistributed per trust deed
  • Include contingent beneficiaries in trust deeds

What About Multiple Children?

  • Separate bare trusts for each child
  • Or one discretionary trust with all children as beneficiaries
  • Trustees can allocate based on needs

Sources

  1. GOV.UK — Trusts and taxes
  2. HMRC — Trusts and settlements