Does Paying in Cash Void a Contract?

You might not think about the implications of paying an invoice in cash or receiving cash as a contractor. However, cash payments can create significant problems that may even strike at the heart of the construction contract.

Cash payments are not illegal in the UK, but they can be risky and carry extra administrative burdens for businesses who operate digital accounting systems and tax reporting.

This article covers the potential pitfalls of paying in cash, the risks associated with receiving cash payments, their impact on contract enforceability, and how to handle any payment disputes that arise.

We act for consumers and contractors across England and Wales and deal with all kinds of contractual problems, including payment disputes and compliance breaches. If you’re in dispute over a cash payment, contact our specialist litigation solicitors now for clear and strategic advice. We have decades of experience in similar situations and are well positioned to advise and assist. We’d love to help you.

Is Cash a Valid Form of Payment?

Cash remains a valid form of payment in England and Wales, although many retail businesses and hospitality outlets are now card-only in face-to-face transactions.

Although cash is still classified as legal tender, businesses are legally allowed to refuse to accept it.

For businesses, cash payments avoid transaction fees. However, there are problems with security, and a service contract may specify electronic transactions only.

When the Payment Method Is Specified in the Contract

A contract does not need to specify a particular methodof payment. However,most companies specify digital only payments in their contracts if they intend to apply this restriction. Informal payment arrangements can quickly lead to disputes where parties disagree on whether a payment has been made or the method of payment that is permitted. In addition, if the contract is completely silent on the method of payment, then the contract will almost certainly include an implied term that payment can be made by any legal method as a matter of contractual efficacy (i.e. to ensure the contract works at all).. 

One of the essential elements that makes a contract valid is consideration; this is typically money provided for goods or services.

If a business refuses to accept a cash payment because the contracted terms are digital only, this doesn’t make the contract unenforceable. However, the commercial reality is that a continuing non-payment becomes a bad debt. 

Persistent bad debt may allow the business to terminate the contract for lack of payment. For example, if there is an express contractual right to terminate the agreement if the payment isn’t made on time.

Terminating a contract for lack of payment can be complex and requires specialist advice to ensure the process is lawful. It’s unnecessary and avoidable if the dispute is over the method of payment rather than the amount or the goods or services provided. 

If the contract is silent as to the timing of payment, then the contract will most likely include an implied term that the payment must be made within a reasonable time. However, contractors will want to ensure that the express terms of the contract permit them to recover interim payments as the works are progressed to avoid payment only becoming due on completion of the works. 

If a construction contract falls within the definition of a construction contract in section 104 of the Housing Grants, Construction and Regeneration Act 1996 (as Amended) then the contractor will have an automatic right to interim payments in certain circumstances (e.g. where the works exceed, or are stated to exceed, 45 days). 

Cash Payments and Fraud Risk

Regular cash payments require manual processing and can be hard to keep track of.

Money must be counted, receipted, reconciled, and then securely stored before it is banked. HMRC expects you to document every penny. 

There’s an inevitable risk of human error. In-person banking carries its own risks.

The tax treatment of cash payments is the same as any other business revenue; you must declare it in your accounts and pay Corporation Tax just as if it were a digital transaction. 

Digital systems automate the entire process, streamlining invoicing and payments, including issuing reminders for late payments. Online transactions enhance smooth business operations, create a verifiable and permanent record, and dovetail with government reporting systems like Make Tax Digital (MTD).

For a small public-facing business, cash payments carry the risk of counterfeiting. For a medium-sized or large company dealing with higher value sums, they can expose the business to fraud and money laundering allegations.

£10,000 is the maximum single cash deposit before a bank triggers an automatic suspicious activity report.

If your company accepts cash payments of £10,000 or more, you must register as a ‘High Value Dealer’ with HMRC. Failure to register is a criminal offence with severe penalties.

Evidence Problems When Cash Changes Hands

Digital transactions create an online record with accounting software automatically allocating a transfer to the correct invoice and area of the business. However, cash payments don’t exist evidentially until they are receipted and paid into a bank account.

There is always a risk that money payments lack a verifiable digital trail until they’re allocated and reconciled with a digital accounting system. 

Consequently, it’s far easier for disputes to arise over the actuality, amount, and timing of a cash handover leading to a ‘he said she said’ situation where there may be no actual proof of a payment or where a receipt has been lost or destroyed.

The Risk of Using Cash under Construction Contracts

Receiving cash payments and issuing proper receipts is legal but comes with risks. The timing and amount of the payment or whether it was made at all are much harder to prove if challenged, providing easy fodder for payment disputes.

In addition, if the purpose of paying in cash is to avoid paying tax, then this can render the entire contract unenforceable. This may mean that if you have paid in cash, you are unable to bring a claim for defective works against the contractor. 

Accepting cash and not declaring it to HMRC is illegal, even if it’s an oversight and genuine error. Destroying records of cash transactions to avoid tax is an offence. 

Structuring deposits to avoid the £10,000 reporting threshold is also illegal; in a busy company, this could be done inadvertently.

Cash payments are vulnerable to disputes; they’re also associated with high maintenance processing including proper and complete paper receipts, which must be backed up with duplicate receipt books or digitally. 

Poor record-keeping and undeclared income can lead to disputes with HMRC as well as suppliers and customers.

Frequently Asked Questions

Should a Contract Specify How Payment Is Made?

For complete clarity and the protection of all parties, a contract should specify how payments are made with digital transactions being the most popular. However, there are rules surrounding electronic payments which businesses must adhere to. 

Cash payments have the burden of additional processing requirements such as same-day recording and in-person banking.

Does Paying in Cash Make a Contract Unenforceable?

Paying in cash doesn’t automatically make a contract unenforceable unless there is some illegality associated with the payment. A disagreement purely over payment methods can be solved without destroying a valid commercial arrangement.

What If a Cash Payment Was Made But Not Recorded?

The onus is on a business to follow the ‘same day recording’ rule to avoid errors and mistakes which may be quite genuine. The only way to challenge a lack of record and prove a cash payment is if you have a fully documented receipt. Some people now record on film cash transfers to create a digital record although these can still be open to challenge.

Does the use of cash affect the ability to refer a dispute to adjudication?

No, provided the use of cash was not to avoid tax, which might render the entire contract unenforceable, the use of cash, which remains legal tender, will not affect a parties’ right to refer a dispute to adjudication. 

Need Advice? Contact Helix Law.

Robust payment processes are one of the most essential elements of any construction contract. Payment terms must be clearly defined, with procedures that deal in a timely manner with late payers and bad debts.

Payment disputes are an unfortunate inevitability of commercial life. Opting for electronic payments as a contract term reduces the risks associated with cash and avoids the extra administrative burden.

We are a team of specialist litigation solicitors providing practical and targeted advice on all aspects of construction payments, ranging from compliance breaches to simple disagreements over cash transactions.

We offer cost-effective solutions that protect your business with clearly defined options providing a strategic pathway to achieve your commercial objectives. If your payment dispute concerns commercial property, then we put our own fees on the line for qualifying cases. No Win No Fee funding is available on commercial property disputes typically valued over £10,000 with strong prospects of success, subject to case assessment.

Cash payments might be one signal of a wider problem with your contract, and leave you now evidentially having to prove what has been paid, to whom, and for what. We’re experienced in dealing with this type of issue. Our specialist litigation solicitors act nationally and would love to help you.