Renters' Rights Act 2025, Phase 1 commencement
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England · Renting to Family · Uncommercial Let · ITA 2007 s.127 · Gift with Reservation · CGT s.18

Renting to Family Members UK 2026 — HMRC Uncommercial Let Rules, Tax Pitfalls, and Legal Obligations

Renting to family members landlord guide 2026: HMRC uncommercial let rule (ITA 2007 s.127 — losses ring-fenced, not offsetable against other property income), expenses limited to actual rent received, gift with reservation of benefit (IHTA 1984 s.102) if rent-free letting, CGT connected persons market value rule (TCGA 1992 s.18/s.286), right-to-rent obligations, AST vs excluded licence, and HMO licensing implications.

12 min readUpdated 6 June 2026Last reviewed: 17 May 2026renting to familyuncommercial letITA 2007 s.127gift with reservation

HMRC's uncommercial let rule — below-market rent and loss relief

  • ITA 2007 s.127 — uncommercial let: where a property is let at below open market rent, any loss arising from that letting cannot be set off against other UK property income or any other income; the loss is ring-fenced and can only be carried forward against future profits from the same letting
  • Expenses limited to actual rent received: where rent is below market, expenses can only be deducted against actual rental income received — a landlord who receives £500/month actual rent but has £800/month of allowable expenses cannot deduct the excess
  • What is below market rent: HMRC assesses whether the rent is below the amount a willing unconnected tenant would pay; a nominal discount (10-15%) with a genuine commercial reason may not trigger the uncommercial let rule — a nominal rent of £1/week clearly does
  • Section 24 mortgage interest restriction: the 20% tax credit on mortgage finance costs applies to family lettings — but where actual rent is below market and losses are ring-fenced, the practical benefit may be very limited
  • Rent-free letting: where a property is let entirely rent-free, HMRC may treat this as not a commercial letting at all — no expenses or mortgage interest credits are available
Losses from uncommercial lets cannot offset other rental income

A landlord with a portfolio of commercial lettings who also lets to a family member at below-market rent cannot use the losses from the family letting to reduce the tax on the other properties. The uncommercial let loss is ring-fenced under ITA 2007 s.127.

Inheritance tax — gift with reservation of benefit

  • IHTA 1984 s.102 — gift with reservation: where a person gifts property but continues to receive a benefit from it, the gift is a gift with reservation; the property is not treated as leaving the donor's estate and remains in the estate at death at its then market value
  • Classic family scenario — parent to child: a parent who transfers a property to their adult child but continues to live in it (or derives other benefits) has made a gift with reservation; the property is fully within the parent's estate on death
  • Pre-owned asset tax (POAT): for arrangements where GWR does not strictly apply but the landlord-donor derives an indirect benefit, the pre-owned assets income tax charge (Finance Act 2004 Schedule 15) may impose an annual income tax charge on the notional rent of the property
  • Seven-year rule for outright gifts: an outright gift with no reservation of benefit is a potentially exempt transfer (PET) — IHT-free if the donor survives seven years; taper relief applies between three and seven years

CGT — connected persons and market value rule

  • TCGA 1992 s.18 — connected persons market value: a disposal to a connected person is treated as made at open market value for CGT purposes regardless of actual consideration; a parent who gifts a property to a child triggers a CGT disposal as if sold at market value on the gift date
  • Who is connected (TCGA 1992 s.286): spouses and civil partners; lineal descendants (children, grandchildren) and their spouses; siblings and their spouses; parents and grandparents; business partners
  • No s.58 no-gain-no-loss relief: the no-gain-no-loss disposal between spouses/civil partners (TCGA 1992 s.58) applies only to spouses and civil partners — not to other family members
  • Holdover relief not available: gift holdover relief (s.260 TCGA) is available for business assets but NOT for residential investment property — the CGT gain crystallises on the gift date
  • PRR interaction: where the property was the landlord's main residence, private residence relief may reduce the chargeable gain for the period of actual residence plus the final 9 months of ownership

Legal requirements — right to rent, AST, and HMO licensing

  • Right-to-rent checks: the Immigration Act 2014 obligation applies equally where the tenant is a family member — the landlord must check and document the right to rent of all adult occupiers before the tenancy begins; penalty up to £5,000 for first breach
  • AST or excluded licence: where the family member has exclusive possession of the property (landlord does not live there), the tenancy is governed by the Housing Act 1988 as an AST — all AST obligations apply including deposit protection, prescribed information, How to Rent guide, gas safety, EPC, and EICR
  • Excluded licence: where the family member lives with the landlord and does not have exclusive possession of the whole property, the arrangement may be an excluded licence outside the 1988 Act — fewer statutory protections apply
  • HMO licensing: where a property is let to two or more family members who form more than one household (for example, adult children from different relationships), mandatory HMO licensing may apply

Frequently asked questions

Can I let to my child at a reduced rent?+

Yes, but HMRC will restrict the tax relief. Under the uncommercial let rule (ITA 2007 s.127), losses from a letting at below-market rent cannot be set off against other rental income or employment income — they can only be carried forward against future profits from the same letting. Expenses are also effectively limited to the actual rent received.

Do I need to do right-to-rent checks for a family member?+

Yes. The right-to-rent obligation applies equally where the tenant is a family member. The landlord must check the adult occupier's right to rent before the tenancy begins. Failure attracts civil penalties of up to £5,000 for a first breach.

What is the gift with reservation of benefit rule for family letting?+

Where a landlord gifts a property to a family member but continues to derive a benefit from it (such as living in it), the gift is a gift with reservation under IHTA 1984 s.102 and the property remains in the donor's estate for IHT purposes on death. An outright unconditional gift with no benefit retained is a potentially exempt transfer — IHT-free if the donor survives seven years.

Is a disposal to a family member subject to CGT at market value?+

Yes — a disposal to a connected person (TCGA 1992 s.286 — children, siblings, parents) is deemed to take place at open market value for CGT purposes regardless of the actual consideration. Gift holdover relief (s.260 TCGA) is not available for residential investment property.

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