Trustee OS for the United Kingdom

The operating system for the insolvency practitioner.

Built on the Insolvency Act 1986 and the Insolvency (England and Wales) Rules 2016.

The framework

Five procedures.

Administration (Sch B1)

The administrator pursues the paragraph 3 objectives; appointment lasts one year unless extended.

Company voluntary arrangement (Part I)

The IP acts as nominee, then supervisor.

Standalone moratorium (Part A1)

The IP acts as monitor.

Liquidation (Part IV)

CVL, MVL and compulsory winding-up.

Restructuring plan (Companies Act 2006, Part 26A)

Cross-class cram down under s901G.

The role

What the insolvency practitioner has to do.

  1. 01

    Hold a licence under s390 and s390A from ICAEW, IPA or ICAS.

  2. 02

    Obtain and verify the statement of affairs (Sch B1 paras 47–48).

  3. 03

    File proposals within eight weeks (para 49) — failure is an offence.

  4. 04

    Admit or reject every proof of debt with written reasons (IR 2016 rr 14.3, 14.4, 14.7), against a 21-day appeal window (r 14.8).

  5. 05

    File progress reports every six months in administration (r 18.6) and every twelve months in liquidation (rr 18.7–18.8), including remuneration and any fee-estimate overrun (r 18.4).

  6. 06

    Pay estate funds into the Insolvency Services Account.

  7. 07

    Close with a final account (r 18.14).

The rules are prescriptive. The reconciliation behind them is still manual.

The caseload

The market, in four numbers.

company insolvencies in 2025
23,938
compulsory liquidations, up 15%, the highest since 2012
3,730
administrations
1,495
practitioners licensed to take appointments, of 1,480 authorised
1,262

Insolvency Service, calendar year 2025 and practitioner regulation review, January 2026.

Why now, specifically

Bond wording, fee estimates and rising complaints.

From 1 January 2026 every insolvency bond must use Secretary of State-approved wording, with the general penalty sum tripled from £250,000 to £750,000 — the first change since 1986.

In force since 22 June 2026, SI 2026/561 requires committee or creditor approval to exceed a fee estimate, and removes fax as a method of delivery. Complaints through the Insolvency Service gateway rose 47% in a single year, to 966. The compliance surface is growing while the fee is not.

The modules

Mapped to UK insolvency vocabulary.

i.

Proof of debt engine

Every proof read, reconciled and adjudicated with written reasons attached.

ii.

Progress reports

r 18.3 content and r 18.4 remuneration drafted from case data.

iii.

Statement of affairs

Assembled and cross-checked.

iv.

Creditor portal

Claimants answered without a call.

v.

Distributions and final account

Waterfall calculated and the r 18.14 final account generated from it.