Frozen business bank account: what to do while the bank reviews it

A restricted business account can stop payroll, supplier payments and customer refunds without warning. The first priority is to understand what evidence the bank needs and preserve enough alternative liquidity to keep the business operating while the review continues.

Understand that a bank can restrict payments while it investigates risk

The Financial Ombudsman explains that banks and other payment service providers may block payments or freeze accounts when they suspect fraud, money laundering or other unlawful activity, or where a court requires it. A restriction can also arise while the provider checks unusual activity or whether a payment was genuinely authorised.

The bank may not be able to explain everything while the review is active. That can be frustrating for a business whose money is unavailable, but the absence of a detailed explanation does not by itself prove the restriction is improper. Focus first on the information the provider is permitted to request and the practical steps needed to support the review.

Respond with organised evidence rather than repeated calls alone

Ask what documents are required and provide them in one clear pack where possible. Useful evidence can include invoices, contracts, proof of delivery, customer correspondence, source-of-funds evidence, Companies House details and explanations for unusual transaction patterns. If the account suddenly received a £150,000 payment after months of £5,000 activity, explain the commercial event.

Keep copies of every document supplied and note the date. If the bank requests the same information again, resend it but point to the earlier submission. A clean evidence trail helps both the live review and any later complaint about delay or handling.

Prioritise payroll, tax and critical suppliers through lawful alternative routes

If the business has a properly established secondary account, determine whether unaffected customer receipts and future payments can be redirected there. Do not attempt to circumvent a restriction on specific funds or transactions. The objective is to use legitimate alternative banking capacity for new business activity while complying with any bank or legal requirements.

Rank upcoming obligations by consequence. Payroll, tax, insurance and suppliers needed to keep trading normally come before discretionary spending. Contact suppliers early if payment will be delayed. A business with no backup account or cash buffer can learn very quickly that banking concentration is an operational risk, not only a deposit-protection issue.

Keep a detailed timeline of every blocked payment and business consequence

Record when the restriction began, which payments failed, what information the bank requested, when the business supplied it and when access changed. Keep screenshots, messages and call references. Separate direct financial loss from general inconvenience.

If a blocked account caused a £2,000 late-delivery penalty, keep the supplier contract and invoice showing that amount. If staff spent 20 hours dealing with the issue, record the time separately. This evidence becomes important if the bank's review later appears to have been handled incorrectly or unreasonably slowly.

Use the bank's formal complaint route and know the Ombudsman timetable

The Financial Ombudsman says complaints about frozen accounts or blocked payments should first be raised with the provider. Its current consumer guidance says the provider should generally respond within 15 days or explain why more time is needed, with a response due within 35 days for payment-services complaints.

The Ombudsman will consider the reasons for the block, the provider's terms, relevant law and regulation, how long the restriction lasted and the impact on the customer. A business must also be eligible to use the Ombudsman service. Keep the complaint focused on the handling, delay or unfairness rather than assuming the Ombudsman can require a bank to ignore legitimate legal obligations.

After access returns, fix the concentration and evidence problems the incident exposed

Review why the restriction hurt so much. Was all payroll cash held with one bank? Did only one director have access? Were invoices and source-of-funds documents difficult to retrieve? Did large transactions look inconsistent with the account profile because the bank had old business information?

Update the banking relationship and internal records. Consider a secondary operating account, stronger document retention, current business descriptions and a minimum liquidity buffer outside the main account where appropriate. The objective is not to make a future bank review impossible. It is to make a legitimate review less capable of stopping the entire business.

Revisit customer and supplier communications too. If invoices still show only the restricted account, the business may continue receiving money into a route it cannot use. Once lawful alternative banking is established, update new invoices, payroll instructions and critical supplier details carefully rather than making rushed mass changes during the restriction itself.