Hiring a PPC Agency: Costs, When It Pays Off and When to Run Ads In-House
A PPC agency plans, runs and reports on paid search and social ads for a management fee, while the ad spend goes to Google or Meta from your own account. Agencies charge a flat monthly fee, a percentage of spend, a hybrid or a performance fee. Hire one when ads drive real revenue and nobody in-house has the time.
Key takeaways
- Google requires third-party partners to disclose a management fee in writing before the first purchase and to report Google costs without their own fees.
- Set up conversion tracking before judging anyone's work, including your own.
- Keep the ad account in your business's name and give the agency access to it.
- No one can guarantee a top ad position: the auction runs again on every search.
On this page
Most businesses look for a PPC agency at one of two moments: when the owner has been running Google Ads at night and can no longer keep up, or when spend has grown and nobody can say with confidence what it returns. Either way the question is the same. Should an agency, a freelancer or your own team run the ads, and what will each cost you in fees, time and control? This guide explains how pay per click works, how agencies charge, and how to decide.
How pay per click works
Pay per click (PPC) is advertising where you pay when someone clicks your ad. Google Ads Help describes cost-per-click bidding in exactly those terms and notes that CPC pricing is sometimes known as pay-per-click.
Which ads appear, and in what order, is decided by an auction. According to Google, an ad auction runs every time someone searches on Google or visits a site that shows ads. Your bid is the most you are willing to pay for a click, but it is only one factor: the quality and relevance of your ad and landing page, the expected effect of ad assets and the context of the search also count. Google says you are often charged less than your maximum bid, because the actual cost per click is only what is needed to beat the advertiser ranked immediately below you. Meta also decides which ads to show through an ad auction.
You control the total through the budget. In Google Ads you set an average daily budget per campaign. Spending varies from day to day, but Google says that for most campaigns you will not pay more than twice the daily budget on any single day, or more than 30.4 times it in a month.
So "how much does PPC cost?" has two parts: the ad spend you choose, and whatever you pay someone to manage it.
What a PPC agency does
A competent agency takes on the weekly work that decides whether spend turns into customers:
- Tracking: conversion actions for forms, calls and purchases, checked end to end before any judgement is made.
- Account structure: campaigns and ad groups organised by intent, so budgets go to searches that convert.
- Keywords and search terms: adding what works, excluding what wastes money, every week.
- Ads and assets: writing and testing headlines, descriptions and images for each audience.
- Bids and budgets: choosing a bidding strategy and moving money towards what produces qualified leads.
- Landing pages: making sure the page matches the ad's promise. Our landing page optimisation guide covers this in detail.
- Reporting: spend, conversions and cost per lead, ideally tied to sales from your CRM.
How PPC agencies charge
Agencies use a handful of fee models. None is right for every business; what matters is that you understand what each rewards.
| Fee model | How it works | What to check |
|---|---|---|
| Flat monthly fee | A fixed fee for an agreed scope of channels and work | What happens to the fee and the scope when spend rises or falls |
| Percentage of ad spend | The fee moves with the budget | It can reward spending more; agree who decides budget increases |
| Hybrid | A base fee plus a percentage above a spend level | Where the threshold sits and how it is measured |
| Performance-based | Fees tied to leads, sales or revenue | How a lead is defined, and who verifies it in your CRM |
| Set-up fee | A one-off charge for an audit, tracking and the initial build | Exactly what is delivered, and whether you keep it if you leave |
Google sets rules for agencies that manage Google Ads for clients. Its transparency requirements say a management fee charged separately from the cost of Google Ads must be disclosed in writing to new customers before their first purchase and shown on every invoice. When a partner shares Google cost data, it must report the exact amount Google charged, excluding its own fees. Partners must also give clients their Google Ads customer ID when asked.
Ad spend and the management fee
Keep two numbers apart. The ad spend pays for clicks and goes to Google, Meta or another platform. The management fee pays for the agency's work. The cleanest set-up is an ad account in your business's name, billed to your own payment method, so the platform charges you directly and the agency invoices only its fee. You can then see every cost in the platform yourself.
If an agency pays the platforms and rebills you, ask for the platform's own cost figures and for access to the account. Google's advertiser guide to working with third parties says that, at a minimum, you have the right to know the clicks, impressions and total cost of your Google ads, and it recommends getting the budget agreement in writing.
In-house, freelancer or agency
| In-house | Freelancer | Agency | |
|---|---|---|---|
| Best for | Steady, high spend that justifies a dedicated person | Smaller accounts on one or two channels | Several channels, or work that also needs tracking, creative and landing pages |
| Strengths | Knows the business; close to sales | Direct contact with the person doing the work | A team with cover for holidays and departures, and wider skills |
| Weaknesses | One person's skills; hard to replace if they leave | Capacity and continuity rest on one person | Fees for account management; junior staff may do the daily work |
| Cost shape | Salary, training and tools | Hourly, project or monthly fee | Monthly fee, percentage of spend or hybrid |
| Control | Full | High, if the account is yours | High, if the account is yours |
A hybrid is common too: an in-house marketer owns strategy and budget, while an agency or freelancer handles the build, tracking and weekly optimisation.
When to hire a PPC agency
Threads on Reddit's r/PPC ask this in plain terms, "Agency or go it alone?" and "When is the right time to hire a PPC agency?", usually from small business owners who do all the marketing themselves. The honest answer depends on three things.
Hire an agency when:
- paid ads are, or should be, a meaningful source of leads or sales;
- nobody in the business has a few hours every week to review search terms, ads and bids;
- you are adding channels, such as Meta or LinkedIn alongside Google;
- tracking, landing pages and creative all need work at once.
Run it in-house, at least for now, when:
- you serve a small local area with a short list of services;
- spend is modest and the fee would take a large share of it;
- you enjoy the work and can learn the basics. Google's advertiser guide encourages advertisers to learn them and stay involved even when a partner runs the account.
A middle route works for many small businesses: pay for a one-off audit and tracking set-up, run the account yourself, and book a review every quarter.
PPC and SEO
PPC and SEO do different jobs. Ads can appear as soon as they are approved and stop the moment spending stops. Organic search takes longer to build and keeps working after the work is done. Google is explicit that the two are separate: its advertiser guide states that advertising on Google has no impact on your organic ranking.
A sensible order for most businesses:
- Fix tracking first, so both channels are measured on the same conversions.
- Use paid search to learn. Search-term reports show which queries turn into enquiries.
- Build SEO around the proven terms. Give each high-converting search a page that answers it well; see our SEO services and the guide to choosing an SEO agency, freelancer or in-house team.
- For a local business, start with local search. A complete Google Business Profile often brings calls before ads do; see local SEO.
Tracking and account ownership come first
Without conversion tracking, nobody can tell whether an agency is doing well. Google's guide to conversion measurement explains that you choose which actions count, such as purchases, sign-ups or calls, and that Smart Bidding strategies such as Maximize Conversions, target CPA and target ROAS optimise towards them. Wrong conversions mean the bidding optimises towards the wrong thing.
Ownership matters as much. Google Ads has access levels from email-only to admin, and only admins can give account access, change access levels or unlink a manager account. Keep admin access for someone in your business and grant the agency the level it needs. If the relationship ends, the account, its history and its conversion data stay with you.
Risks and trade-offs
Google's advertiser guide lists practices to watch for when working with a third party. In short:
- Guaranteed positions. Google says it is not possible to guarantee a specific ad position, because the auction changes with every search.
- Hidden costs. Not sharing clicks, impressions and total cost, or using a different budget from the one agreed.
- Shared accounts. Google requires agencies to set up a separate ad account for each advertiser they manage.
- Pressure and false claims. Claiming to be from Google, or claiming ads will lift organic rankings.
Each route also has its own trade-offs. An agency adds a fee and an account manager between you and the specialist. A freelancer can disappear with the knowledge of your account. An in-house hire is hard to replace and may not keep up with platform changes. Performance-based fees sound safe but can push volume over quality unless leads are verified against sales.
How to choose a PPC agency
- Ask who does the work. Names, experience and how many accounts each person manages.
- Ask what they would audit first. A good answer starts with tracking and search terms.
- Ask how they report. Spend, conversions and cost per qualified lead, taken from the platform and your CRM.
- Ask about landing pages. Who changes them, and how fast? Ads and pages need to move together; see conversion rate optimisation.
- Check the fee in writing. The model, what it includes and how it changes with spend.
- Confirm ownership. The ad account, analytics and tag manager in your name, with admin access kept by you.
- Check notice terms. A fair contract lets you leave with your account and data intact.
How Mindrops works on this
Mindrops runs performance advertising on Google, Microsoft, Meta and LinkedIn. Each engagement starts with an audit of account structure, search terms and conversion tracking, and tracking is fixed before anything is scaled. Landing pages are built in-house alongside the ads, and accounts are reported against cost per lead, customer acquisition cost and return on ad spend. Ad spend is paid to the platforms separately from the Mindrops fee, which is quoted from the scope of channels and work. Accounts stay in the client's name. Delivery runs on CMMI Level 3 process maturity, and Mindrops has offices in New Delhi, London and Brussels. To discuss your account, send your channels, monthly spend and target cost per lead through get a quote; Mindrops replies as quickly as possible.
Conclusion
An agency earns its fee when ads matter to revenue, the work needs more hours and skills than you have, and tracking lets you judge the results. Whoever runs the ads, keep the account in your name, measure real conversions and understand exactly what you pay for clicks and what you pay for management. Start small, prove what works, then scale it.