Paid search is the practice of buying visits to your website or profile through ads, on platforms like Google Ads and Meta Ads, where you pay per click or per thousand impressions. It’s the fastest way to put your offer in front of people who are already looking for what you sell.
This guide explains what paid search is, how the auction behind every ad works, how much it costs to get started in Brazil in 2026, and when it makes sense to hire someone to handle it.
Quick summary
- What it is: buying qualified visits through paid ads.
- How it’s billed: per click (CPC) in most cases, or per thousand impressions (CPM).
- How long it takes: the first clicks arrive within hours, and the campaign stabilizes between 15 and 30 days.
- Real minimum investment: starting at R$30 a day, you can already gather statistically useful data in most niches.
- Biggest risk: paying for clicks from people who would never buy.
In this article
- What is paid search
- How paid search works in practice
- Paid search vs. organic traffic
- How much paid search costs in Brazil
- Where to run it: the main channels
- The five mistakes that burn the most budget
- When it’s worth hiring a Google Ads specialist
- Frequently asked questions
- How to measure if paid search is working
- What to learn straight from the source
- Quick paid search glossary
- The next step
What paid search is
Every website gets two types of visits. The ones that arrive on their own, because someone found you through a search, a referral, or social media, are organic traffic. The ones that arrive because you paid to show up are paid traffic.
The practical difference is control. With organic, you depend on the algorithm deciding to show you, and that takes months. With paid, you decide today who sees the ad, in which city, at what time, and with what message. In exchange, the flow stops the day your budget runs out.
That’s why the two don’t compete, they complement each other. Paid brings in sales while organic matures, and organic sustains results when you need to cut back on spend.
How paid search works in practice
Almost every ad platform works like an instant auction. When someone searches “dentist in Higienópolis,” Google runs an auction in milliseconds among all the advertisers who want to appear for that term.
The detail that almost no one explains: paying more doesn’t always mean winning. Your position comes from a calculation that combines your bid with the quality of the ad and the landing page. An advertiser with a more relevant ad can rank above a competitor who bid twice as much, and still pay less for it.
In practice, the path is always the same:
- You choose the audience, either by the keyword someone typed or by interest profile.
- You set how much you’re willing to invest per day and how much a click is worth to you.
- You upload the ads with a headline, description, and image.
- The platform displays the ad, charges for the click, and returns data on who clicked and who converted.
- You cut what spends without selling and double down on what brings in customers.
Step 5 is where the campaign turns into profit or loss, and it’s exactly what most people abandon after the first week.
Paid search vs. organic traffic
| Criteria | Paid traffic | Organic traffic |
|---|---|---|
| Time to first result | Hours | 3 to 6 months |
| Cost per visit | Always paid | Trends toward zero over time |
| Control over who sees it | High | Low |
| What happens if you stop | Stops the same day | Keeps paying off |
| Best for | Validating an offer and selling now | Building authority |
If you need customers this month, start with paid. If you want to lower your acquisition cost a year from now, start organic today and don’t stop.
How much paid search costs in Brazil
There’s no minimum amount set by the platforms. What exists is a statistical minimum: below a certain volume of clicks, you can’t tell a bad campaign apart from bad luck.
In practical terms, you need at least 30 to 50 clicks per week in each ad group to start reading the data with any confidence. If a click in your niche costs R$3, that means somewhere between R$90 and R$150 per week per group.
Click cost varies a lot by industry. Niches with a high ticket and strong competition, like law and healthcare, easily go above R$15 per click. Local retail usually runs between R$1 and R$4.
If you want the detailed breakdown by industry, we wrote a separate guide on how much to invest in Google Ads.
Where to run it: the main channels
Google Ads
It’s the intent channel. The person typed exactly what they want, and you show up in the answer. It tends to convert better because the need already exists, and it’s the best starting point if you sell a service or solve an urgent problem.
Meta Ads (Instagram and Facebook)
It’s the discovery channel. No one opened Instagram looking for your product, so the ad needs to create the desire. It works well for visual products, lower price points, and audiences who buy on impulse.
Google Business Profile
For local businesses, your Google Business Profile often brings in contacts before you even run an ad. It’s worth setting up the profile before investing in media, because the ad sends people to a place they’ll check out anyway. We have a guide on how to list your business on Google Maps.
The five mistakes that burn the most budget
- Not installing conversion tracking. Without it, Google optimizes for clicks, not sales, and learns to target exactly the people who don’t buy.
- Using keywords that are too broad. Generic terms attract window shoppers, and a window shopper costs the same as a buyer.
- Not using a negative keyword list. Without one, your account pays for searches that should never have entered the auction, like “free,” “course,” and “how to.”
- Sending the click to the homepage. The person clicked on a specific promise and landed on a generic page, so they leave.
- Tweaking it every day. Campaigns need volume to learn. Changing your bid every 12 hours resets the learning phase and burns through budget nonstop.
When it’s worth hiring a Google Ads specialist
As long as you’re spending little and selling something simple, you can run it yourself. The turning point usually shows up in three situations.
The first is budget: once your monthly spend passes around R$3,000, the 20% waste nobody notices already covers the cost of hiring someone to manage it.
The second is time: if the campaign takes more than two hours a week that you should be spending on clients, the real cost isn’t the agency’s fee, it’s the sale you didn’t make.
The third is a ceiling: when you try to scale and your cost per sale rises right along with it, the problem is usually in the account structure, not the budget.
Frequently asked questions
Does paid search work for any business?
It works for almost all of them, but not equally easily. A business that solves a problem people are already searching for on Google has a shorter path. A new product that nobody knows exists needs content to create demand first.
How long does it take for paid search to show results?
The first clicks come in within hours. The campaign stabilizes between 15 and 30 days, which is how long the platform needs to collect enough conversions to optimize. Anyone who judges results in the first week almost always kills a campaign that was about to work.
What’s the difference between paid ads and boosting a post?
Boosting is the quick button inside Instagram or Facebook itself, with very little control over audience or objective. Paid ads run through the ads manager let you choose a conversion objective, target precisely and measure sales. Boosting is good for reach, rarely for selling.
Do I need a website to run paid ads?
Not necessarily. You can send the click to WhatsApp or to your Google Business Profile. But without your own page you lose tracking and have no way of knowing which ad generated the sale, which blocks any serious optimization.
How much should I invest in the first month?
Start with an amount you could lose entirely without hurting your cash flow, because the first month is about learning, not profit. For most local businesses in Brazil, that’s between R$900 and R$1,500 a month, enough to generate data without betting big.
Does paid search replace SEO?
No. They solve different problems over time. Paid ads bring sales today and stop the moment you turn them off. SEO takes months and keeps paying off afterward. Anyone who relies only on ads stays hostage to the cost per click rising every year.
How to measure whether your paid search is working
A campaign without defined metrics turns into a matter of opinion. These are the four that decide, from least to most important.
CTR (click-through rate). The percentage of people who saw the ad and clicked. On the Search Network, anything below 2% usually signals an ad that’s out of sync with the search. It’s useful for diagnosing creative, not for proving sales.
CPC (cost per click). How much you pay per visit. On its own it doesn’t say much: a cheap click that never converts is the worst deal in the account.
CPA (cost per acquisition). How much each closed customer costs. This is where the math starts to make sense. If your average ticket is R$800 and your margin is 40%, you have R$320 of room per sale. A CPA above that is a loss, no matter how good your CTR looks.
ROAS (return on ad spend). How much comes back for every real invested. A ROAS of 4 means R$4 in revenue for every R$1 in media spend. The healthy number changes depending on your margin: if you work with a 20% margin, a ROAS of 4 is still a loss.
The reading order matters. Look at CPA and ROAS first, because they’re the ones that pay the bills. CTR and CPC come next, to explain why CPA is where it is.
What to learn straight from the source
Two official references worth checking when the question gets technical: the Google Ads Help Center, which documents every campaign type and the auction rules, and Google Search Central, which explains how the search engine treats your site’s organic content. For local businesses, the Google Business Profile documentation covers what ads alone can’t fix.
Quick paid search glossary
- Auction: an instant competition between advertisers every time someone runs a search.
- Quality Score: a rating from 1 to 10 that Google gives to the combination of ad, keyword and page. A high score lowers how much you pay.
- Negative keyword: a term you block from triggering your ad, like “free” or “job opening”.
- Conversion: the action that’s worth money to you: a purchase, a submitted form, a click on WhatsApp.
- Remarketing: ads shown to people who already visited your site. It usually has the best cost per sale in the account.
- Performance Max: an automated campaign type that distributes your ad across all of Google’s channels at once.
- Landing page: the page that receives the click. When it’s generic, it tanks the whole conversion.
The next step
If you’re already running ads and suspect you’re spending poorly, you can find out where your budget is leaking before you change anything. We do a free audit of your Google Ads account and hand you a diagnosis of what to fix first.
Request your free audit on WhatsApp
If you’re not running ads yet and want to understand what makes sense for your case, see how our Google Ads management works.