Overview
Inheritance Tax applies to estates on death, certain lifetime transfers and the relevant-property trust regime. The calculation can involve seven-year aggregation, exemptions, nil-rate bands, business/agricultural relief, residence nil-rate band, gifts with reservation and pre-owned-assets rules. Legal ownership and beneficial ownership must be established before valuing the transfer.
Current calculation note: The standard IHT rate is 40%, with a possible reduced 36% rate on qualifying estate property where the charity condition is met. The nil-rate band is £325,000 and the residence nil-rate band is up to £175,000, subject to conditions and taper for estates over £2 million. Lifetime transfers, reliefs, exemptions and aggregation over the relevant period must be reviewed.
Potential scope
Potentially relevant to estates, individuals, non resident landlords, sole traders. The practical scope must be tested against legal form, residence or establishment, source of income or gains, ownership, connected-party relationships, transaction date, accounting or tax period, and any devolved or local rules. Jurisdiction: United Kingdom. Territorial focus: United Kingdom, subject to residence, source, territorial and devolved-tax rules.
Review points
- Identify the legal trigger and person responsible for Inheritance Tax.
- Fix the relevant tax year, accounting period, transaction date and jurisdiction before using a rate or threshold.
- Check registration, filing, payment, election and claim deadlines separately.
- Document exemptions, reliefs, connected-party rules and interactions with other taxes.
- Retain an evidence trail and complete source and technical review before production publication.
Rates, thresholds and calculation basis
The standard IHT rate is 40%, with a possible reduced 36% rate on qualifying estate property where the charity condition is met. The nil-rate band is £325,000 and the residence nil-rate band is up to £175,000, subject to conditions and taper for estates over £2 million. Lifetime transfers, reliefs, exemptions and aggregation over the relevant period must be reviewed.
Registration requirements
Confirm whether Inheritance Tax requires registration, a reference number, scheme approval or notification. Identify the trigger date and submit the registration through the correct authority or online service before the statutory deadline.
Filing and reporting
Identify the correct return, schedule, payroll report, customs declaration, trust/estate return, property return or standalone notification. Reconcile the filing to accounts and supporting computations, use the correct period and effective-date rules, and disclose claims, elections or uncertainties where required. Nil, relief-only or information returns may still be required even where no tax is payable.
Payment dates and deadlines
IHT is generally due six months after the end of the month of death, although instalment treatment can apply to qualifying property. Probate or confirmation may require payment before the grant. Lifetime-charge and trust deadlines differ.
Exemptions and reliefs
Review all exemptions, allowances, de minimis rules, group or spouse transfers, business/property reliefs, treaty positions and sector-specific reliefs relevant to Inheritance Tax. A relief should not be assumed from commercial purpose alone; record the statutory condition and evidence for each claim.
Elections, claims and notifications
List every election, claim, clearance, certificate, status determination or notification that may alter Inheritance Tax. Record whether it is made in a return or separately, who must make it, whether all affected parties must agree, the statutory time limit, whether it is revocable and the periods or assets it covers.
Records and evidence
Retain contracts, invoices, valuations, bank and ledger records, payroll or customs data, ownership evidence, residence information, calculations, returns, elections, correspondence and proof of payment relevant to Inheritance Tax. Preserve the audit trail from source document to filed figure for at least the statutory retention period and longer where an enquiry, loss, relief or historic basis remains open.
Common errors and risks
Common risks include using the wrong period’s rate; confusing legal and beneficial ownership; overlooking connected persons or group rules; treating a relief as automatic; missing a separate notification; applying accounting treatment as if it were tax treatment; failing to reconcile figures; and retaining insufficient evidence. For Inheritance Tax, also check interactions with the underlying taxes and any anti-avoidance provision.
Worked example
Illustrative workflow: a taxpayer identifies a transaction potentially within Inheritance Tax. The adviser fixes the transaction date and taxpayer status, determines the statutory base, checks the current rate or relief conditions, prepares the computation, identifies the return and payment dates, links the official source and records the evidence. The numerical result is not final until the facts and effective-period rules have been independently reviewed.
Related subjects
Related collections: Taxes Affecting Individuals. Search the platform for the underlying tax, relevant reliefs, withholding or reporting rules, anti-avoidance provisions and taxpayer type. Existing aliases: IHT, Inheritance Tax (IHT).
Need a fact-specific answer?
Tax treatment depends on the exact facts, dates, documents and taxpayer status.
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