Business type · Marketing agencies

Finance and software tools for marketing agencies

A marketing agency's money is unusual. Client ad budgets pass through your cards, clients and freelancers sit in different countries, and cash goes out before it comes in. These are the tools that handle each part.

See the tools Common questions
6 jobs coveredUpdated October 2026Independent editorial

Running a marketing agency means managing other people's money as well as your own. Client ad budgets pass through your cards, clients and freelancers are in different countries, and you pay out before you are paid.

This guide covers the six jobs an agency's finance stack has to do, from paying for ad spend to protecting the business, with three tools to consider for each. Start with ad spend: a card per client, for example from Wallester, whose free plan includes 300 virtual cards, keeps every budget separate.

How we chose the tools

  • Each tool is matched to one job this type of business has to do.
  • We favour tools that are available to small and growing businesses.
  • Where several tools fit, we say how they differ.
Marketing agencies

What marketing agencies need, and the tools that do it

This is general information, not financial or legal advice. Tools are listed by how well they fit the job, and some links may earn us a commission.

Paying for client ad spend

Ad platforms charge your card continuously. A card per client or per ad account keeps budgets separate, makes billing them back simple and limits the damage if one card is declined or compromised.

What to look for

  • Virtual cards you can issue instantly
  • Spending limits on each card
  • Receipts and reports that match your accounting software

Our picks

  • Wallester Business

    Free plan with 300 virtual cards and unlimited users, so each client can have its own card.

  • Pleo

    Strong receipt capture for teams in Europe. Pricing is per user, so cost grows with headcount.

  • Brex

    US corporate card platform with high limits and no personal guarantee, aimed at funded companies.

See the full expense card ranking →US guide →UK guide →

Getting paid and paying abroad

Clients pay in euros, dollars and pounds, and freelancers expect local currency. Converting at a high bank margin eats into every retainer.

What to look for

  • Local account details in the currencies you invoice in
  • An FX rate shown up front
  • Payouts to contractors in their own currency

Our picks

  • Airwallex

    Multi-currency account with local collection details and global payouts, plus cards.

  • Wise Business

    Converts at the mid-market rate with the fee shown up front.

  • Revolut Business

    A bundled business account with many currencies, cards and team tools in one app.

See the full ranking: Multi-currency accounts →

Invoicing and bookkeeping

Retainers, project fees and pass-through ad spend all need clean books. Pick software your accountant already knows and that invoices in the currencies your clients use.

What to look for

  • Recurring invoices for retainers
  • Multi-currency support
  • Bank and card feeds that sync automatically

Our picks

  • Xero

    Multi-currency and a large app marketplace. The standard in the UK, Australia and New Zealand.

  • QuickBooks

    Widely used by US accountants, so help is easy to find.

  • FreshBooks

    Invoicing and time tracking in one place, good for small agencies that bill by the hour.

See the full ranking: Accounting software →

Hiring freelancers and remote staff

Agencies lean on freelancers and remote specialists in other countries. The right platform handles contracts, compliance and payment in one place.

What to look for

  • Contractor contracts that suit the local rules
  • Payment in the contractor's currency
  • Employer-of-record cover if you hire full time abroad

Our picks

  • Deel

    Contracts, compliance and payments for international contractors and employees.

  • Remote

    Employer-of-record and payroll for hiring full-time staff abroad without a local entity.

  • Gusto

    Payroll, benefits and tax filing for US employees.

See the full ranking: Contractor payments →

Winning and managing clients

Winning clients is the agency's real bottleneck. A CRM keeps leads, proposals and follow-ups from living in someone's inbox.

What to look for

  • A pipeline you can see at a glance
  • Email logging and reminders
  • A free or low-cost tier while you are small

Our picks

  • HubSpot

    A free CRM tier with deal pipelines and email tools, plus paid hubs as you grow.

  • Pipedrive

    A visual sales pipeline that a small team can adopt quickly.

  • monday.com

    Work management with a CRM product, useful if you want sales and delivery in one system.

Protecting the agency

Agencies hold client money, logins and data. A disputed campaign result or a data breach can turn into a claim.

What to look for

  • Professional liability cover
  • Cyber cover if you handle client data
  • A quote you can get online

Our picks

  • Hiscox

    Professional liability and general liability for small businesses.

  • Next Insurance

    Online small business cover, aimed at the US.

  • Simply Business

    A UK broker that compares cover from several insurers.

See the full ranking: Business insurance →
In depth

How money moves through a marketing agency, and where it leaks

Why agency finances are unusual

An agency earns two kinds of money. Fees and retainers are its own revenue. Ad spend is a client's money passing through the agency's cards on the way to Google, Meta and other platforms. Mixing the two makes it hard to know the real margin, and the timing gap between paying platforms and being paid by clients is where most agencies run short of cash.

Handling client ad spend

  • Give each client or ad account its own card with a limit, so one problem cannot spread.
  • Decide whose payment method sits on the ad account, and put it in the contract.
  • Bill ad spend back with the platform receipts, and reconcile it every month.
  • Consider billing ad spend in advance for new or slow-paying clients.
  • Check each platform's terms on who is the advertiser of record.

A cash-flow example

The timing gap is easier to see with numbers.

Illustrative example

Suppose an agency pays a platform $20,000 of ad spend during March, invoices the client at month end on 30-day terms, and is paid at the end of April. The agency has funded that $20,000 for about two months. Across ten clients, the gap becomes a real financing need. The figures are illustrative.

Getting paid

Retainers billed monthly in advance are the healthiest form of agency revenue, because cash arrives before the work is done. For projects, take a deposit and bill by milestone. Write payment terms and a late-payment policy into every contract, and use invoicing software that reminds clients automatically.

The stack by stage

  • A freelancer or very small agency needs a card for ad spend, a business account and simple invoicing.
  • An agency with a small team adds accounting software, a multi-currency account and a CRM.
  • A larger agency adds contractor management, expense controls and insurance reviewed against client contracts.

Common mistakes

  • Putting client ad spend on a personal or general company card.
  • Not billing pass-through costs promptly.
  • Taking on a client without a deposit or a credit check.
  • Converting foreign payments at a bank's margin, month after month.
  • Carrying no professional liability cover when contracts require it.
FAQ

Common questions

Keep it separate from your own costs. Use one card per client or per ad account, set a spending limit, and bill the spend back with the receipts. Mixing ad spend into general expenses makes billing and reconciliation harder.

Both are common. Putting the client's payment method on the ad account keeps the liability with them. Using your own card means you carry the cash-flow gap and the risk of non-payment, so set card limits and invoice ad spend promptly.

A card setup for ad spend, an account that handles the currencies you invoice in, and accounting software. Add a CRM, contractor tools and insurance as you grow.

Use a contractor platform that handles contracts and local compliance, or pay from a multi-currency account in their currency. Check how the freelancer should be classified in their country, and ask an adviser if unsure.

Send invoices from software that chases automatically, ask for a deposit on new work, and keep a card limit on ad spend so you are not funding a client for long. Some agencies add a credit line, which has a cost and should be read carefully.

Keep going

Related guides

Accounting softwareAccounting software keeps your books, invoices and tax records in one place Expense cardsCards for ad spend and subscriptions

ExpenseBiz is an independent editorial publication. We may earn a commission if you sign up through some links on this page, at no extra cost to you. This page is general information, not financial, tax or legal advice. See our methodology.

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