CIS tax debts — director options when contractor scheme fails

• ›Contractors must register with HMRC and operate CIS deductions on payments to subcontractors.
• ›Standard deduction rate: 20% (registered subcontractors).
• ›Unverified rate: 30% (subcontractors not registered or whose status cannot be verified).
• ›Gross payment status: 0% deduction (subcontractors meeting turnover and compliance criteria).
• ›Contractor monthly returns to HMRC (CIS 300) — listing deductions made and payments to subcontractors.
• ›CIS deductions must be paid to HMRC by 22nd of the following month (19th for paper payments).

The contractor doesn’t own the CIS deductions — they’re held as fiduciary funds for HMRC. Failure to remit creates HMRC liability and (in serious cases) potential criminal exposure for misappropriation of public funds.

Since 1 December 2020, CIS deductions held by an insolvent contractor rank as secondary preferential creditor. The same treatment applies to VAT, PAYE, employee NICs, and student loan deductions. CIS gets preferential treatment because:

• ›The funds were never the contractor’s — they were always due to HMRC.
• ›Without preference, the funds would be lost in the unsecured creditor pool.
• ›Other unsecured creditors had no claim on these funds in any event.

Practical impact — HMRC typically recovers all CIS arrears in priority to unsecured trade creditors. Where contractor companies have substantial CIS arrears (£50,000+), the secondary preferential status materially reduces unsecured creditor recovery.

Personal Liability Notices (PLNs) under s.121C Social Security Administration Act 1992 originally covered PAYE and employee NICs. PLN extension to CIS was introduced through the National Insurance Contributions Act 2014 — HMRC can now issue PLNs for CIS arrears as well.

PLN requires HMRC to establish:

• ›The company has failed to pay CIS deductions.
• ›The failure is attributable to neglect by an officer of the company — typically a director.
• ›The officer’s neglect was a material cause of the failure.

Neglect is established by reference to standard director conduct — failing to maintain CIS records adequately, failing to operate the verification process, diverting CIS deductions to other uses (paying suppliers, directors), continuing to operate as contractor while unable to remit CIS. PLN exposure is significant: directors become personally liable for the CIS arrears, with interest. See the PLN spoke.

• ›Cashflow cannibalisation — contractor uses CIS deductions for operating cashflow (suppliers, wages, rent) rather than remitting to HMRC. Common when contractor margins tighten.
• ›Lost gross payment status — contractor loses GPS (typically through compliance failures), suddenly creating 20% deduction obligations that weren’t anticipated.
• ›Unverified subcontractor — contractor deducts 30% rate; subcontractor disputes; arrears accumulate while disputes are unresolved.
• ›Reverse charge VAT mistakes — the domestic reverse charge for construction (1 March 2021) created cashflow shocks. Some saw CIS arrears accumulate alongside VAT arrears.
• ›Bad debt — contractor invoiced customer, made CIS deductions, paid subcontractors net — but customer didn’t pay. The contractor has the CIS liability but no funds to pay it.
• ›Failed payment runs — contractor’s bank facilities reduced; CIS payment missed; arrears compound.

1. Time to Pay arrangement

Same TTP framework as for other HMRC debts — typically up to 12 months for SMEs. HMRC is less flexible on CIS TTPs than on standard tax TTPs because CIS represents fiduciary funds. See TTP forecast.

2. Pay from working capital

Where the contractor can mobilise short-term working capital (debtor collection acceleration, invoice discounting, asset sale), paying CIS in priority resolves the issue. Often the right answer where the underlying business is viable and the CIS arrears are isolated rather than systemic.

3. CVA

Where the contractor business is viable but the debt burden (CIS + other) is unmanageable, CVA can compromise the unsecured debt while preserving trading. HMRC’s secondary preferential status means CIS arrears are typically paid in full through the CVA (rather than compromised at the unsecured rate). See CVA full guide.

4. CVL

Where the contractor business has no viable future, CVL is the orderly close-down. CIS arrears form part of the secondary preferential claim. PLN risk persists — even after CVL, HMRC can pursue directors personally for the unpaid CIS where neglect is established. See CVL pillar.

5. Administration

Where the contractor has substantial contract pipeline that can be sold or restructured, administration may preserve value. The administrator can continue trading existing contracts while sale of business is negotiated. Less common for SME contractors but appropriate for larger ones.

• ›Don’t continue trading and accumulating CIS deductions while unable to remit them — this is the principal route to PLN exposure.
• ›Don’t pay directors / connected parties from CIS deductions — preference (s.239) + misfeasance (s.212) + likely PLN exposure on the CIS itself.
• ›Don’t fail to maintain CIS records — poor record-keeping itself supports PLN findings and disqualification proceedings.
• ›Don’t ignore HMRC’s compliance contacts — engagement and accurate disclosure typically preserve options; silence accelerates enforcement.

For the PLN framework, see PLN spoke. For Crown preference framework generally, see Crown preference. For TTP framework, see TTP forecast. For Construction sector context, see Construction sector hub. For procedures, see CVL pillar or CVA full guide.