Sooner or later, every Google Ads advertiser hits the same fork in the road. Do you set your bids yourself and keep your hands firmly on the wheel, or do you hand them over to Google’s machine learning and trust it to do a better job than you could? It is one of the most consequential decisions in paid search, and the honest truth is that the right answer is not the same for everyone. It depends on your data, your budget and what you are actually trying to achieve.
This guide breaks down both approaches in plain English: what they are, where each one shines, where each one struggles, and how to work out which suits your business right now. No jargon left unexplained, and no pretending there is a single correct choice.
TLDR
For those short on time, manual bidding gives you direct control and works well for smaller, tightly managed accounts or those still gathering data. Automated bidding hands the controls to Google’s algorithms, which can factor in far more than any human could, but it needs solid conversion tracking and a reasonable volume of data to perform. Many advertisers begin with manuals to learn their numbers, then move to automation once they have the data to support it. The detail below will help you decide where you sit.
What is manual bidding?
Manual bidding, run through the Manual CPC (cost per click) strategy, is exactly what it sounds like. You decide the maximum amount you are willing to pay for a click, and you set that figure yourself at the keyword or ad group level. If a keyword is performing well and you want more of it, you raise the bid. If it is draining budgets without results, you lower it or pause it. You are in the driving seat for every decision.
It is worth clearing up a common misconception here, because plenty of older articles will tell you manual bidding is on its way out. It is not. Manual CPC is still very much available, and Google recently made it easier to select rather than harder, moving the option out from behind a “not recommended” menu and placing it directly within the campaign setup. So while Google clearly favours automation, manual remains a legitimate, supported choice.
What is automated (Smart) bidding?
Automated bidding, often called Smart Bidding, takes the opposite approach. Instead of you setting a price per click, you tell Google what you want to achieve, and its machine learning sets the bids in real time at each auction to chase that goal. Crucially, it adjusts those bids using signals you could never manage by hand, such as the user’s device, location, time of day, and likelihood to convert, all weighed up in the moment.
The main strategies you will come across are:
- Maximize Clicks, which aims to get you as much traffic as possible within your budget.
- Maximize Conversions, which chases the most conversions, with an optional Target CPA setting if you want to aim for a specific cost per conversion.
- Maximize Conversion Value, which optimises for revenue rather than volume, with an optional Target ROAS setting.
- Target Impression Share, which focuses on visibility, keeping you in a chosen position on the page.
One point trips a lot of people up. If you go hunting through the menu for a standalone “Target CPA” strategy, you will not find it as its own option any more. Target CPA and Target ROAS now live as settings inside Maximize Conversions and Maximize Conversion Value respectively. Same capability, different home.
Automated bidding is generally recommended nowadays because it uses AI to analyse millions of datapoints as opposed to manual bidding which can be, well, just that, a manual process. If you are starting new campaigns with no historical data, manual bidding could be worth a try.
Jenny Brown | Content Strategist & PPC Manager
It is also worth knowing what has changed recently. Until early 2025 there was a comfortable middle ground called Enhanced CPC (eCPC), which let you keep manual control while allowing Google to nudge your bids towards conversions. That option was retired for Search and Display campaigns in March 2025, with remaining campaigns moved across to Manual CPC. The disappearance of that halfway house is part of a broader industry shift towards full automation, and it means the choice today is sharper than it used to be. You are largely choosing between setting bids yourself or handing them over, with less of a gentle stepping stone in between.
Manual vs automated, side by side
| Factor | Manual bidding (Manual CPC) | Automated (Smart Bidding) |
| Who sets the bid | You, at keyword or ad group level | Google’s machine learning, in real time |
| Control | High and direct | Indirect (you set goals, not bids) |
| Time required | High and ongoing | Low once set up |
| Data needed | Works with very little | Needs conversion tracking and volume |
| Uses live auction signals | No | Yes (device, time, audience and more) |
| Learning period | None | Yes, while the system calibrates |
| Best suited to | Low-volume, tightly controlled or new accounts | Accounts with solid data and clear targets |
| Main risk | Time cost and human error | Less control and a temporary learning dip |
The headline trade-off is simple. Manual gives you control but asks for your time and a good head for numbers. Automated saves you that time and taps into data you cannot match, but it only works well when you feed it properly.
The pros and cons of manual bidding
The appeal of manual bidding is control. You decide exactly what each click is worth to you, which makes your costs predictable and keeps you close to your account. For a small business on a tight budget, or anyone who wants to cap spend on specific terms, that control is genuinely valuable. There is also no learning period to wait through, so your changes take effect immediately.
The drawbacks are equally real. Manual bidding is time-hungry, and as your account grows it becomes difficult to manage well by hand. More importantly, a human setting a single bid cannot react to the live auction the way an algorithm can, so you may consistently over-bid on some auctions and miss others entirely. It rewards attention and expertise, and it punishes neglect.
The pros and cons of automated bidding
Automated bidding’s greatest strength is its ability to process thousands of signals at the moment of each auction and adjust accordingly, something no person could replicate. It saves enormous amounts of time, scales comfortably as your account grows, and with enough good data it frequently outperforms manual management on cost per result.
Smart Bidding leans heavily on conversion tracking and a steady flow of conversions to learn from, so a brand new account or a very low-volume one can struggle to give it what it needs. There is also a learning period when you first switch one on, during which performance can wobble before it settles. And for some advertisers, the loss of direct control and the “black box” feel takes some getting used to. With the old eCPC stepping stone gone, there is less of a gentle on-ramp, which makes getting your tracking right beforehand all the more important.
Which should you choose?
Here is the practical guidance the decision really comes down to.
Lean towards manual bidding if you have low conversion volume, a small or tightly controlled budget, or you are still in the early days of setting up your tracking. It is also a sensible way to learn your account, since managing bids by hand teaches you what your traffic is actually worth.
Lean towards automated bidding if you have solid conversion tracking in place, enough conversion volume for the system to learn from, and clear cost or value targets you want to hit. If your account has grown beyond what you can comfortably manage by hand, automation is usually the route to scaling without losing your evenings.
For many advertisers the answer is not either-or but a sequence: start manual to gather clean data and understand your numbers, then graduate to Smart Bidding once you have the volume to make it sing.
[Pull quote to add here, from a paid media manager who has made the switch in practice.] Guidelines: two to three sentences offering a real-world rule of thumb for deciding between the two, ideally referencing a conversion-volume threshold or a “switch when you have X” trigger. It should feel like hard-won advice from experience rather than theory. Attribute to a named practitioner with their role.
Getting the most from whichever you choose
Whichever path you take, the fundamentals of good PPC optimisation matter just as much. Automation is not a set-and-forget button, and manual bidding is not a substitute for a well-built account. In both cases, the same basics decide your success: accurate conversion tracking so you and the algorithm both know what is working, a clean and logical account structure, a strong Quality Score to keep your costs down, realistic targets, and a habit of reviewing performance regularly.
In fact, the more automation takes over the mechanics of bidding, the more your job shifts towards feeding the system good inputs. Clear goals, clean data and strong creative become the levers you pull, rather than the bids themselves. Get those right and either approach can work well. Get them wrong and no bidding strategy, manual or automated, will save you.
Key takeaways
- Manual bidding gives you control and suits low-volume, tightly managed or new accounts, but it is time-intensive and cannot react to the live auction.
- Automated (Smart) bidding hands bids to Google’s machine learning, which uses signals no human could, but it needs solid conversion tracking and volume to perform.
- The old halfway house, Enhanced CPC, has gone, so the choice today is sharper than it once was.
- Target CPA and Target ROAS are now settings within Maximize Conversions and Maximize Conversion Value, not separate strategies.
- Whatever you choose, the fundamentals of PPC optimisation, especially accurate conversion tracking, decide whether it works.
Frequently asked questions
What is the difference between manual and automated bidding in Google Ads?
With manual bidding you set your own maximum cost per click, giving you direct control. With automated (Smart) bidding, Google’s machine learning sets bids in real time to hit a goal you choose, using signals you could not adjust by hand.
Is manual bidding still available in Google Ads?
Yes. Manual CPC is still available in 2026 and was recently made easier to select. What was retired was Enhanced CPC, the semi-automated hybrid.
What is a Target CPA bidding strategy?
It aims to win as many conversions as possible at around a target cost per conversion you set. It now sits as a setting inside the Maximize Conversions strategy rather than as a separate option in the menu.
Which is better, manual or automated bidding?
Neither universally. Manual suits low-volume or tightly controlled accounts, while automated tends to win once you have solid conversion tracking and enough data for it to learn from.
Do I need conversion tracking for automated bidding?
Yes. Smart Bidding relies on conversion data to optimise, so accurate tracking is essential before you switch one on.
Should beginners use manual or automated bidding?
Many start with manual to understand their costs and gather clean conversion data, then move to Smart Bidding once they have enough volume for it to perform well.
