Google Ads has about a dozen bidding strategies, but most accounts only ever need three. If you sell leads, use Maximize Conversions and then move to Target CPA once you have steady volume. If you sell products online, use Maximize Conversion Value and then move to Target ROAS. If you have no conversion tracking yet, fix that before you touch bidding at all.
The bidding strategy is the single setting that decides how Google spends your money. Pick the wrong one and you can run a technically perfect account that still loses money every month.
The hard part is not picking a strategy. It is knowing when your account has earned the right to move to the next one. Most of the damage we see comes from advertisers who switched to Target CPA or Target ROAS too early, then panicked when volume dropped.
What are the Google Ads bidding strategies?
Google sorts its bid strategies into four groups based on what you are trying to buy: conversions, clicks, visibility, or video views. Google’s own guide lists them this way.
Conversion focused strategies are the ones Google calls Smart Bidding. They are Target CPA, Target ROAS, Maximize Conversions, Maximize Conversion Value, and Enhanced CPC. Google describes Smart Bidding as using its AI to optimize “in each and every auction”. That is the important part. It is not setting one bid for a keyword. It is setting a different bid for every single search.
Click focused strategies are Maximize Clicks, Target CPC, and Manual CPC. Visibility focused strategies are Target Impression Share, CPM, tCPM, and vCPM. Video campaigns use CPV.
For a business trying to get leads or sales, four of those thirteen matter. The rest are for brand campaigns, app installs, and media buys.
Which bidding strategy should you start with?
Start with Maximize Conversions if you sell services, and Maximize Conversion Value if you sell products. Both tell Google to spend your whole budget chasing the outcome you actually care about, without you having to guess a target number.
The reason to start here is simple. Target CPA and Target ROAS both need you to supply a number. If you guess that number wrong, Google will hold back your spend to hit it and your volume will collapse. Maximize Conversions has no such trap. It spends the budget and shows you what your real cost per conversion is.
Run it for thirty days. Now you have a real number instead of a hope. That number is what you use as your target when you graduate.
When should you switch to Target CPA or Target ROAS?
Switch when you have enough conversion volume for Google’s model to have something to learn from, and when your target is based on your own past thirty days rather than your wish list.
Google publishes its own thresholds, and they are worth reading because they differ by campaign type.
| Strategy | Campaign type | What Google says you need |
|---|---|---|
| Target CPA | Any | No conversion history required to start. Evaluate over the last 30 days with at least 30 conversions. |
| Target ROAS | Search and Shopping | At least 15 conversions in the past 30 days |
| Target ROAS | Display | At least 15 conversions with valid values in the past 30 days |
| Target ROAS | Video Action | At least 30 conversions in the past 30 days |
| Target ROAS | Demand Gen | At least 50 conversions in the past 35 days |
| Target ROAS | App | At least 10 conversions a day, or 300 in 30 days |
What this means for you: if your Search campaign is producing four conversions a month, Target ROAS is not going to work no matter how patient you are. Stay on Maximize Conversions and fix the volume problem first.
There is one detail people miss. Google says you can start Target CPA with no conversion history at all. That is technically true, but it is also how accounts end up strangled. With no history, Google has nothing to predict from, so it bids conservatively and you get almost no impressions.
How do you set the target number?
Set it at your actual average from the last thirty days, not at the number you wish you were paying. Google recommends its own target based on the average CPA of your last thirty days, adjusted for conversion delays, and that recommendation is usually a sensible starting point.
Then move it in small steps. A 10% to 15% change at a time, with a week or two between changes, lets you find the edge without killing the campaign. Cutting your target CPA in half overnight is the fastest way to turn a working campaign into a dead one.
If you do not know what a healthy target looks like for your industry, our post on cost per lead benchmarks has the confirmed averages by sector, and break even ROAS walks through the math for product businesses.
Why does Smart Bidding fail for some accounts?
Almost always because the conversion data feeding it is wrong. Smart Bidding is a prediction engine. It predicts the value of a click based on what happened after past clicks. If your account counts page views as conversions, Google learns to buy page views.
We see the same four problems over and over:
- The conversion action counts a thank you page load, but the thank you page is also reachable from a menu link.
- Every form on the site fires the same conversion, so a newsletter signup counts the same as a sales enquiry.
- Conversion value is never sent, so an ecommerce account optimizes toward order count instead of revenue.
- Sales that happen on the phone or in a CRM never make it back into Google Ads at all.
Fix the measurement before the bidding. Our guide to Google Ads conversion tracking covers the setup, and enhanced conversions covers the accuracy layer on top of it.
Does Manual CPC still have a use?
Rarely, and mostly for diagnosis rather than for running an account long term. Manual CPC is useful when you want to prove that a specific keyword can convert at all, without Google’s model deciding it is not worth bidding on.
It is also useful in very small accounts where there are simply not enough conversions for any automated strategy to learn. If you get three leads a month, Smart Bidding has nothing to work with, and a human setting bids on ten exact match keywords will do better.
Outside those two cases, Manual CPC in 2026 is usually a sign that nobody has looked at the account in a few years.
How does bidding interact with match types and budget?
Bidding decides how much. Match types decide who. Budget decides the ceiling. Change one and the other two behave differently.
The common failure is running broad match with Maximize Conversions and a tight budget. Broad match opens the door to a huge range of searches, Maximize Conversions tries to spend the whole budget, and the budget runs out on loosely related traffic before your best searches ever get a chance. If you are going to run broad, run it with a target based strategy and a solid negative keyword list.
Our posts on Google Ads match types and setting a Google Ads budget go deeper on both sides of that trade off.
Common questions
How long does a bidding strategy take to settle?
Google shows a learning period notice for about one to two weeks after a change. Treat that as the minimum, not the answer. For most lead generation accounts, you need a full thirty days of data before you can judge whether the change worked.
Should I use Enhanced CPC?
Enhanced CPC is a halfway house between manual bidding and full Smart Bidding. If you are already on Manual CPC and nervous about automation, it is a reasonable step. If you can qualify for Maximize Conversions, skip it and go there instead.
Can I use a different bidding strategy per ad group?
No. Bidding is set at the campaign level. If two parts of your account need different targets, they need to be different campaigns. That is one of the main reasons account structure matters more than people expect.
Why did my costs jump after switching to Target ROAS?
Usually because the target you set was higher than what the account was actually achieving, so Google had room to bid up. Check what your real ROAS was over the previous thirty days before you assume the strategy is broken. Our explainer on what ROAS is covers how to read that number correctly.
Does Performance Max use the same bidding strategies?
Performance Max runs on Maximize Conversions or Maximize Conversion Value, with optional Target CPA or Target ROAS on top. It does not offer manual bidding. Our Performance Max guide explains what you can and cannot control there.
Is Smart Bidding worth it for a small budget?
It depends on conversions, not on budget. A $1,000 a month account that produces forty leads has plenty for Smart Bidding to learn from. A $10,000 a month account that produces four does not.
Where to go from here
If you are not sure whether your bidding strategy is the problem or your tracking is, the fastest way to find out is to look at the last ninety days of conversion data and see whether the numbers match what your sales team or your bank account says.
That is the first thing we check on any account. If you want a second pair of eyes, our Google Ads management page explains how we work, and you can get in touch for a straight answer on whether the account needs a bidding change or a rebuild. No pitch deck, just a look at the numbers.
