Health June 23, 2026 5 min read

Paid ads KPIs: what your agency should be showing you every month

If the report you get is full of numbers but you don't know what to do with them, the problem isn't you. Here's what actually matters.

Dashboard of paid ads KPIs with campaign metrics

A report full of numbers isn't a good report

A lot of agencies hand over a PDF full of impressions, clicks, CTR, average CPC, reach, and frequency, and the business owner looks at it with no idea whether they're making money or losing it. That isn't transparency. It's smoke.

A KPI (Key Performance Indicator) is the number that answers the right question. For anyone investing in paid ads, the right question is almost always: is this investment generating customers or not?

The KPIs that actually matter for your business

Cost per lead (CPL) What you paid for each person who reached out. The most important number for anyone selling a service.
Conversion rate Of the clicks, how many turned into contact. A low rate points to a problem with the site or the offer.
ROAS Return on ad spend. For every $1 invested, how much came back in revenue.
Cost per acquisition (CPA) What each closed customer cost, not just each contact. The bottom-line KPI of any campaign.

CTR (click-through rate) and impressions are vanity metrics: they look good in a report but don't pay the bills. If the report doesn't show CPL and CPA, ask for them.

What to ask for at your next agency meeting

Questions any serious agency can answer

What was the cost per lead this month? Always trackable
How many contacts came from ads? With tracking
Which campaign brought the most results? Campaign comparison
What was adjusted this month? Optimizations made

If the agency stumbles on any of these questions, it's a sign the campaign isn't being closely managed, or that tracking isn't set up.

IKOEH reports on what actually matters

At IKOEH, every client gets a monthly report with cost per lead, cost per conversion, and a comparison against the previous month. No giant table of vanity metrics. Get in touch and see how it works.

Frequently asked questions

What is the most important KPI in paid ads?

It depends on the goal. For service businesses, cost per lead (CPL) is the most relevant. For e-commerce, ROAS and CPA. Every campaign needs to measure real return in customers, not just clicks.

My agency only sends me CTR and impressions. Is that good?

CTR and impressions say little about real results. A good campaign needs to show cost per contact and how many of those contacts became customers. If that data isn't in the report, ask for it or consider switching agencies.

How often should I review KPIs?

Monthly reporting is the minimum. But for new campaigns or larger budgets, biweekly check-ins are recommended so you can adjust before wasting spend.

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