How to Calculate Your Cold Email Agency Margin

Agency margin is profit divided by revenue, where profit is what each client leaves after its own costs, times clients, minus fixed costs. The cold email agency margin calculator works it out and adds break-even clients and the fee for a target margin.

The formula

Time cost per client = hours per client x hourly cost
Cost per client      = infrastructure + data + tools + time cost
Left per client      = fee - cost per client
Revenue              = clients x fee
Profit               = clients x left per client - fixed monthly costs
Margin               = profit / revenue
Break-even clients   = fixed costs / left per client   (rounded up)
Fee for target       = (clients x cost per client + fixed costs)
                       / (clients x (1 - target margin))

Fixed costs are those that do not grow with clients: rent, salaries, shared tools.

Worked example (made-up inputs)

These figures are invented to show the arithmetic. They are not typical agency numbers. 8 clients at a $1,500 monthly fee. Each client costs $60 in infrastructure, $150 in data and $40 in tools, and takes 3 hours at $50 an hour. Fixed costs are $2,000 a month and the target margin is 30%.

Figure	Working	Result
Time cost per client	3 x 50	$150.00
Cost per client	60 + 150 + 40 + 150	$400.00
Left per client	1,500 - 400	$1,100.00
Revenue	8 x 1,500	$12,000.00
Profit	8 x 1,100 - 2,000	$6,800.00
Margin	6,800 / 12,000	56.7%
Break-even clients	2,000 / 1,100	2
Fee for a 30% margin	(8 x 400 + 2,000) / (8 x 0.70)	$928.57

Reading the result

Left per client is the number to protect. If it is thin, adding clients adds work faster than profit. If it is wide, fixed costs are what hold the margin down. The fee for a target margin shows how far your price is above or below what you need, with these costs and this client count. For the sending side of the same agency, see the capacity planner, and for the cost of a client's meetings, cost per meeting.

What this calculation cannot do

• It treats every client as identical. Clients on different fees need separate runs.
• Fixed costs are one number you enter. It does not allocate them.
• It does not model churn, discounts or late payment.
• It does not know your costs. They are the inputs.

Verify client lists first

Bounced and invalid addresses drop out of every number above: a contact that bounces never reads the email, so it can never reply or book. Verify the list before you load it. Upload it on the verify page: the first 100 email checks are free with a Google sign-in, no card. Each address comes back valid, risky or invalid with a reason, and nothing is sent to anyone on the list. For larger or recurring lists, see bulk email verification, list cleaning and pricing.

Run your own margin

Open the cold email agency margin calculator.