Industry guide · UK

    Credit control for marketing agencies

    By AutoSettle · Updated

    Quick answer

    Credit control for marketing agencies means billing retainers in advance, splitting projects into staged payments, never funding client media spend from your own cash, and chasing overdue invoices consistently. Agencies that automate reminders and escalate quickly get paid faster without the account team having awkward money conversations with clients.

    Agencies sell time and ideas, and both are spent before the invoice goes out. When a client pays 60 or 90 days late, the agency has already paid salaries, freelancers and often media costs on the client's behalf.

    The relationship side makes it harder. Account managers do not want to chase the people they are trying to keep happy. This guide sets out how marketing, creative, PR and digital agencies in the UK can protect cash flow while keeping client relationships strong.

    Why agencies get paid late

    Scope creep and disputed work

    Work that grows beyond the brief without a signed change request becomes the part of the invoice a client questions, which then delays the whole payment.

    Billing in arrears

    Agencies that invoice at the end of a month or project are effectively lending money to clients for 60 days or more.

    Media and third-party costs

    Paying for ad spend, printing or production and recharging it later can tie up large sums of agency cash.

    Large clients with long payment cycles

    Bigger brands often impose 60-day terms, supplier portals and PO requirements. Missing any detail can push payment into the next cycle.

    Relationship-owned debt

    When the account manager owns chasing, reminders are delayed or softened. Separating account management from credit control is one of the biggest improvements an agency can make.

    A credit control process for agencies

    1. 1

      Agree payment terms in the contract

      State payment terms, late payment interest, and your right to pause work in the statement of work or master services agreement.

    2. 2

      Bill retainers in advance

      Invoice monthly retainers at the start of the month for the work ahead, not at the end.

    3. 3

      Stage project payments

      Take a deposit on sign-off, then bill at milestones such as concept approval and launch.

    4. 4

      Get media costs paid up front

      Ask clients to prepay media and production, or pay suppliers directly, rather than funding it yourself.

    5. 5

      Meet the client's invoice requirements

      Include PO numbers, correct entity names and supplier portal submissions so invoices are not rejected.

    6. 6

      Automate reminders outside the account team

      Let a neutral credit control process send reminders so account managers can stay focused on the work.

    7. 7

      Pause work when agreed terms are broken

      If invoices go significantly overdue, pause non-urgent work in line with your contract and escalate firmly.

    Agency billing models compared

    Cash flow impact of common marketing agency billing models
    Billing modelCash flow impactCredit control tip
    Retainer billed in arrearsAgency funds 30–60 days of workSwitch to billing in advance
    Retainer billed in advanceCash arrives before work is doneChase before month start
    Project, invoice on completionHigh risk if project stallsUse deposit and milestone payments
    Project, staged paymentsBalanced riskTie each stage to a clear deliverable
    Media recharged laterCan tie up large sumsRequire prepayment or direct billing

    Your rights when agency clients pay late

    Agency clients are businesses, so the Late Payment of Commercial Debts (Interest) Act 1998 applies. You can claim statutory interest at 8% above the Bank of England base rate and fixed compensation of £40, £70 or £100 per invoice, unless your contract sets a different substantial remedy.

    Where your contract allows, you may also pause work or withhold transfer of intellectual property until invoices are paid. Check your terms and take advice before relying on this.

    Large companies must report their payment practices under the Reporting on Payment Practices and Performance Regulations, which can be a useful point of reference when a big client pays slowly. This is general information, not legal advice.

    Work out what you can claim with our late payment interest calculator.

    Worked example (illustrative)

    A fictional digital agency bills Hartley Brooks Ltd a £4,500 monthly retainer in arrears. Payments usually arrive 45 days after the invoice date, so the agency always carries about £9,000 of unpaid work for this client.

    By moving to billing in advance and using automated reminders five days before and on the due date, the agency gets paid around the start of each month. When one invoice slips, a firm notice mentioning statutory interest and £70 compensation brings payment within a week. Figures are illustrative.

    Separate the relationship from the reminder

    The most effective change many agencies make is taking chasing off the account manager's desk. A consistent, automated sequence sent from a neutral finance voice feels less personal to clients, is never forgotten in a busy week, and lets the account team stay on the client's side.

    Contract terms every agency should include

    Your master services agreement or statement of work should make payment expectations impossible to miss. As a minimum, include:

    • Payment terms, for example 14 or 30 days from invoice.
    • Retainers billed monthly in advance.
    • Deposits and milestone payments for projects.
    • Media and third-party costs paid in advance or billed directly.
    • Your right to charge statutory interest and compensation on late payments.
    • Your right to pause work, and when intellectual property transfers, if invoices are overdue.
    • A change request process for work outside the agreed scope.

    Warning signs from agency clients

    Watch for these signs that a client relationship is turning into a credit risk:

    • Repeated requests to change invoice details or split invoices.
    • New stakeholders who question work already signed off.
    • Delays in approving creative that push milestone billing back.
    • Media invoices paid late while fees are paid on time, or vice versa.
    • Talk of budget freezes, restructures or a pitch process.

    Credit control KPIs for agencies

    Track days sales outstanding (DSO), the value of work in progress not yet billed, and the share of revenue billed in advance. Agencies that bill more in advance and keep DSO under 45 days usually have far fewer cash flow problems.

    AutoSettle chases every overdue fee and media invoice from Xero, QuickBooks or Sage, and can use HubSpot deal context so reminders reflect the state of the client relationship.

    Frequently asked questions

    Should agencies bill retainers in advance?

    Yes, where possible. Billing in advance means you are paid for work before you do it, rather than lending clients 30 to 60 days of time.

    Can an agency stop work if a client does not pay?

    If your contract allows it, you can pause work when invoices are overdue. Give written notice and follow the steps in your terms.

    How do I chase a client without hurting the relationship?

    Use a neutral, automated reminder sequence rather than having the account manager chase. Keep messages short, factual and polite at first.

    Can I charge interest on late agency invoices?

    Yes. Under the Late Payment Act you can claim statutory interest at base rate plus 8% and fixed compensation, unless your contract provides a substantial alternative.

    What about ad spend I have paid for a client?

    Invoice it immediately and chase it like any other debt. For future work, ask clients to prepay or pay media platforms directly.

    Does AutoSettle integrate with agency accounting tools?

    AutoSettle connects to Xero, QuickBooks and Sage, which many agencies already use, and can also pull client context from HubSpot.

    Let AutoSettle chase your overdue invoices

    Connect Xero, QuickBooks or Sage in minutes. Your AI Credit Controller handles reminders, payment plans and escalation, and you approve anything important.