Google Ads Bidding Deadline: 3 Weeks to August 17

By Corey Frankosky · Last Updated August 6, 2026

On August 17, 2026, Google is changing how budget-limited campaigns bid when they use Target CPA or Target ROAS. Google will push those campaigns to bid much closer to the target you set, which can mean a higher cost per lead, a lower ROAS, and fewer conversions on the same budget. If you run any Search, Shopping, Performance Max, Demand Gen, or Travel campaign on tCPA or tROAS, this Google Ads bidding deadline gives you about three weeks to review your targets before the change takes effect.

What Actually Changes on August 17

Today, a budget-limited campaign on Target CPA or Target ROAS often beats the target you set. The budget cap keeps the campaign extra efficient, so it can bring in leads well under your tCPA or deliver a ROAS well above your tROAS. That cushion is what is going away.

After August 17, Google will bid closer to the exact target you set while it still tries to spend the budget. If a campaign has been beating its target because budget limits kept it efficient, that margin can shrink. Google bids toward your stated goal instead of staying well under it.

Here is a simple example. If you run a lead gen campaign with a $100 Target CPA but it has been getting leads for $60, Google may stop handing you that extra margin after the change. You spend the same amount and you get fewer leads.

Which Campaigns Are Affected

The change hits Search, Shopping, Performance Max, Demand Gen, and Travel campaigns that use Target CPA or Target ROAS. The biggest warning sign is a campaign marked "Limited by budget." If actual CPA sits well below your target, or actual ROAS sits well above it, that campaign is the most likely to shift.

Several campaign types are not part of this update. Manual CPC, Maximize Conversions with no target, Target Impression Share, App campaigns, Video reach campaigns, and Video view campaigns are all excluded. Display and Hotel campaigns are excluded too, because they already work this way.

Why Lead Gen and Local Service Accounts Feel It Most

This is where the change can sting for lead gen and local service accounts. Take an HVAC Search campaign with a $100 Target CPA, a $50 daily budget, and $60 leads. Before this update, that campaign could stay well under the target and still spend out its budget. After August 17, it can move closer to $100 per lead, which cuts lead volume even when spend stays the same.

In plain English, you get the same budget and fewer leads. Even a small CPA shift can reduce lead volume fast, so these are the accounts to review first. If you want a second set of eyes on your account before the deadline, our Google Ads management services team can run the audit with you.

How to Find Affected Campaigns

Start in the Campaigns view in Google Ads and filter for campaigns marked "Limited by budget." Then match that set against campaigns using Target CPA or Target ROAS. Audit those first, because budget-limited tCPA and tROAS campaigns are the ones most likely to shift.

For each campaign, record the name, bid strategy, target, 30 to 90 day results, spend, and priority. Use 30 to 90 day averages, not one or two day swings. If actual CPA is below target, or actual ROAS is above target, move that campaign to the top of your review list and mark it high exposure.

• Recommendations: Check for budget or target warnings, then compare those suggestions against recent performance.
• Bid Target Adjustment Tool: Google rolled this out on July 6, 2026 specifically to help with this change, so it is already in your account. It uses your historical performance to suggest targets that reflect what the campaign is actually delivering.
• Change history: Compare the current target with the date it was last set. If the target was set during a very different performance period, it may not fit current results anymore.

What to Change in the Next Three Weeks

For each high-exposure campaign, pick one move: lower the target, raise the budget, or switch bidding. Base that choice on the last 30 to 90 days of performance, not on the goals you set when the campaign first launched.

• Lower the target when efficiency comes first. If a campaign is bringing in $35 leads against a $60 Target CPA, bring the target down near $35 before August 17 so you keep the efficiency you already have.
• Raise the budget when lead volume is the goal and the campaign is genuinely constrained by spend rather than by the target. More budget lets a strong campaign enter more auctions without giving up efficiency.
• Switch bidding when you decide not to stay on tCPA or tROAS. Maximize Conversions with no target is not directly hit by this change and fits when volume matters more than a fixed CPA, but you still need to watch your cost per lead. Manual CPC fits very small budgets of about 5 to 10 clicks per day where automated bidding does not have enough data, though it takes constant bid work and does not use the same real-time auction signals.

Your Three-Week Action Plan

The plan is simple: audit, adjust, stabilize. The order matters, so make changes step by step.

After August 17, watch CPA, ROAS, spend, and conversion volume each week for the first two weeks. Then review your targets every two weeks against actual 30-day performance. If costs climb or volume slips, adjust in small steps of 10% to 15% and give each change a few days before the next one. If you want help thinking through the strategy, our Google Ads consulting is built for exactly this kind of review.