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Find out how the City of London Corporation can pay your invoices on time; further information on our early payment discount scheme "City Accelerate"; our campaign to reduce paper invoices; our No PO No Pay Policy; and Commercial Contract Management.

Prompt Payment Code

The City of London Corporation takes part in the Chartered Institute of Credit Management's (CIMC) Prompt Payment Code. That means we pledge to:

Pay suppliers on time

We at the City of London Corporation, aim to pay undisputed invoices, that quote a valid purchase order number, within 10 days of the invoice arriving anywhere in the Corporation for SME's (small and medium enterprises with fewer than 250 employees) and 30 days for larger suppliers (250+ employees).

Give clear guidance to suppliers

All invoices should be sent by email to the Accounts Payable team and include the following information.

  • an identifying number
  • the supplier's name, address and VAT registration number
  • the time of supply
  • date of issue
  • the type of supply (e.g. sale, hire purchase, loan etc.)
  • a description of the goods or services supplied
  • the customer's name (or trading name) and address:

City of London Corporation
PO Box 270
Guildhall
London EC2P 2EJ

For the most prompt payments and in an effort to reduce our carbon footprint we prefer to pay our suppliers via BACS. We encourage suppliers to include their bank details on all invoices with a valid email address for remittance.

Encourage good practice

The City of London encourages adoption of the code throughout our own supply chains.

Prompt Payment Reporting

In accordance with regulation 113 of the Public Contracts Regulations 2015, please see the information below on the City of London's prompt payment performance.

Prompt payment performance

Financial Year Proportion of valid & undisputed invoices paid within 30 days in accordance with regulation 113 Interest paid to suppliers due to a breach of the requirement in regulation 113
2015/16 96% £0
2016/17 97% £0
2017/18 95% £0
2018/19 94% £165.15

City Accelerate

On 2 August 2018 the City of London Corporation launched an early payment discount scheme called City Accelerate. For several years the City Corporation has paid well over 90% of supplier invoices on time, so we are now in a position to offer not just prompt payment but early payment to our suppliers in exchange for a small percentage rebate.

This initiative is being launched in partnership with Oxygen Finance, who specialise in providing early payment discount programmes in the public sector.

City Accelerate is voluntary for suppliers to join, but we believe that this new scheme delivers tangible benefits for our suppliers, especially those on standard 30-day payment terms. The City Corporation recognises that we have a responsibility to the local economy, so it is important that our suppliers are able to take advantage of the benefits on offer, including:

  • Improved cash flow through the early payment of invoices
  • Reduced payment volatility – suppliers will be paid faster and more consistently
  • Prioritised invoice settlement, including daily payment runs
  • A single dedicated point of contact for query resolution
  • Increased Accounts Receivable efficiency through end-to-end invoice processing

For further information including the City Accelerate brochure, please visit the City Accelerate website, where suppliers can also sign up to the scheme.

Think Invoice, Think Email

No more paper invoices

Over the last 10 years an increased awareness of the benefits of reducing paper have been driving most organisations, including the City of London Corporation to find ways to minimise or eliminate their paper processes. This helps us to reduce our costs, be more efficient and be socially responsible.

In line with this commitment the City of London are launching a campaign to target a reduction in paper invoicing both internally and with all our suppliers – No More Paper Invoices, Think Invoice, Think Email.

Our ultimate aim is to eradicate paper invoices altogether and we are therefore encouraging suppliers to email invoices to us. Not only does this help the environment but it also means that we can guarantee to pay our suppliers more quickly.

All invoices can be emailed to the City Procurement Accounts Payable Team.

The preferred format is Adobe PDF, but other formats such as Word documents, Excel spreadsheets and JPEGs are all accepted.

If you are currently sending paper invoices to City of London Corporation please now send all your invoices directly by email to the City Procurement Accounts Payable team using the email address provided above.

The City of London Corporation receives and currently processes nearly 100,000 invoices a year and up to 25,000 of these are still received on paper. That's 7,423 meters of paper end to end, enough to cover the length of Tower Bridge 30 times over.

Here are just a few of the benefits of moving to a fully electronic system:

  • Savings on the cost of paper, envelopes, printing and postage
  • Faster delivery of invoices, facilitating prompt payments
  • A much better audit trail and no more invoices lost in the post
  • A far less damaging impact on the environment

This campaign supports the City of London Corporation's E-invoicing Policy Position 2015 (100KB). This policy position confirms e-invoicing as the preferred method of receiving invoices. If you have any questions in regards to this policy position or the No Paper Invoices, Think Invoice, Think Email campaign please email the Accounts Payable team.

No PO No Pay

​Purchase Order Number

When invoicing for goods or services, suppliers must quote a valid Purchase Order (PO number) on the invoice, in order to receive payment.

To help improve efficiency in our payment processes and ensure that all payments are made to suppliers as quickly as possible, suppliers must ensure that they are provided with a PO number when accepting an order for goods or services.

Any invoice received without a valid PO number will result in delays as it will not be processed and will be returned to the supplier unpaid.

I never quoted a PO number on my invoice and still got paid. Can I not continue to do this?

No. We implemented the No PO No PAY policy to ensure all financial commitments are approved and recorded in purchasing systems in advance of the purchase being made.

Are any goods and services exempt?

Exemptions usually only apply to:

• Utilities

• Rate refunds

• Council tax

• Grant payments

For low value and/or one off purchases, we use purchase cards (P-cards). If you have received a card number to process the payment against, then a PO number will not be required.

If you are submitting an invoice in a foreign currency, you are not required to provide a PO. This type of invoice should be sent directly to the City of London contact who commissioned the work.

Will I get paid any quicker if I provide a PO number?

No. However, invoices without a valid PO number will not be processed or paid until a valid PO number is quoted by the supplier and this will delay your payment.

The standard payment terms the City Corporation adheres to are:

• 10 days for small to medium enterprises

• 30 days for large companies

• immediate for non-trade

What does a valid PO number look like?

A valid PO number from The City Corporation will begin with a number seven and will have six digits: eg 712345.

Where can I get a PO number from?

1. Get a valid PO number from your contact within the City Corporation who provided you with an instruction for the goods/service.

2. Enter the PO number on your invoice

3. Submit the invoice to the City of London Corporation Accounts Payable Team

My contact details have changed. Who do I contact to get these corrected?

If you need to let us know of any changes contact the City Procurement Projects or email the Accounts Payable team.

Please note: Due to the requirements of the Data Protection Act 1998, we need to record your formal authorisation to amend your records. We ask that all changes be confirmed in writing - email accepted - to maintain compliance and meet with audit requirements.

If you are currently paid by cheque we would encourage you to provide us with your current bank account details in writing so that we are able to improve the efficiency of your payment.

More information

If you have any further questions regarding the No PO No PAY policy contact City Procurement or email the Accounts Payable team.

Commercial Contract Management

​The Commercial Contract Management (CCM) team provide information, advice, support and training to the City on all aspects of Contract Management. The CCM team work closely both with internal Contract Managers and external Third Parties to facilitate efficient and sustainable commercial relationships within all strategic contracts.

Performance Scorecard

The Performance Scorecard tool provides a high-level summary of the performance of our Supplier’s across a number of key performance areas. The scorecard is in place to ensure that the City can meet and exceed its current and future strategic objectives.

The scorecard will ensure that a standard approach is taken to monitoring and gathering evidence in order to drive best practice, mitigate risks or failing performance and to enable the City’s supply-chain to offer the best value, quality and innovation.

The 10 Corporate Measures of the Scorecard are:

Supplier Performance & Service Delivery

This will be a metric based on the supplier’s performance focused on the contract KPIs, customer satisfaction, budget and billing controls, finance performance and items of statutory compliance.

Commercialism & Innovation

To assess how innovation has been introduced or considered by our key Suppliers. We will monitor opportunities and their implementation, track savings, efficiencies and income generation outputs derived from the contract during its life cycle.

Internal Contract Management Performance

This metric will be inward looking as we will have a number of dependencies to deliver to ensure a successful contract outcome. Measured within this area will be assurances that there are contract handover plans, regular diarised Supplier meetings and milestone monitoring. Underpinning this will be the assurance that accurate and up to date documentation is managed appropriately.

Supplier Relationship & Supply Chain Management

This metric will include a subjective score on the overall relationship, taking into consideration all aspects of the contract, reputation in the marketplace and the Supplier’s ability to manage their supply chain to the levels required by the City.

Health & Safety

This metric will ensure suppliers have appropriate Health and Safety management provision in place, ensuring suppliers are complying with all relevant requirements, hold accurate data and relevant accreditation and are able to deliver interventions that satisfy the Corporation’s key policy and strategies in Health, Safety and Wellbeing.

Economic & Financial Standing

This metric will proactively seek assurances that our key Suppliers can continue to deliver the required service and monitors reputational risk and early indicators that a supplier may fail to meet the appropriate City, financial and regulatory requirements.

Risk Management

This metric will ensure risk and business continuity is at the heart of each of our key contracts. It will ensure suppliers have “live” risk registers, risk handling and escalation procedures, business continuity plans and procedures to mitigate the risk of organised crime.

Environmental Protection

Measurements in this area seek to ensure Suppliers are complying with mandatory Government Buying Standards and are supporting the City’s energy efficiency strategies and other key policies.

Social Value

Measurement of the delivery of social value across inclusion, community benefit, local economic regeneration, skills and apprentices, amongst other key themes.

Ethical Sourcing

The final metric will ensure Suppliers are compliant with the Modern Slavery Act, legal working rights in the UK, human rights requirements as well as ensuring they are sourcing from countries and sub-contractors that meet the City’s mandatory requirements.

If you have any further questions email the Commercial Contract Management team.


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