Top 10 advantages of profit bidding

Most Google Shopping accounts bid on revenue, with one average target for many products.

Here are ten ways bidding on profit, product by product, does better — each with the maths, and how GROW does it for you.

Why one average revenue target overspends on some products and holds back others
How pricing returns, fees and cost changes into every bid protects your margin
Why precise bids win more reach, market share and slots in AI search
How profit bidding gives you predictable returns and profit to reinvest
How GROW does each one for you — with you approving every change

Eight terms, in plain English

ROAS: Return on ad spend: sales ÷ ad cost. £400 of sales from £100 of ads = ROAS 4.
Target ROAS: The ROAS you ask Google to aim for. Entered as a %, so 3.05 = 305%.
Margin (before ads): What a sale leaves you after product, delivery, fees and returns — before advertising.
Breakeven ROAS: The ROAS where ads eat the whole margin: 1 ÷ margin. Below it, every sale loses money.
Profit target: The share of each sale (without VAT) you keep after every cost, ads included. GROW's default is 10%.
Ad Rank: How Google orders ads in an auction — mainly your bid and your ad's quality.
Conversion tracking: The code that tells Google a sale happened, and what it was worth.
AI Overviews: The AI summary at the top of some Google results. Shopping ads can show in and around it.

Source: Google Ads Help — About Ad Rank — support.google.com/google-ads/answer/1722122

1. Every product bids what it can afford

The problem: revenue bidding gives a whole group one target. But every product's costs differ, so each needs its own.

ROAS bid = selling price ÷ (£ margin before ads − £ profit target)

£50 product (without VAT), margin before adsROAS bid at a 10% profit target

£10 a sale (20%)10.0 — at most £5 of ads per sale

£15 a sale (30%)5.0 — at most £10

£20 a sale (40%)3.33 — at most £15

£25 a sale (50%)2.5 — at most £20

One average target for all four4.0 — right for none of them

GROW's ProfitClarity™ works out this bid for every product in your catalogue, from its MarginStack™ costs.

2. Stop paying for sales that lose money

The problem: under one average target, thin-margin products can spend more on ads than they make — and still look healthy.

6.67×breakeven ROAS for a 15% margin product

2.8×what a blended target gave it, in a real 3,981-product catalogue

−£5lost on every £100 sale of a 15% margin product bidding at 5× ROAS

It looks like a star — 5× is double a 60% margin product at 2.5×
The 60% margin product banks £20 on every £100 sale
Profit bidding flags products that can't carry ads before money is spent

In plain English: A 15% margin product keeps £15 from a £100 sale. At 5× ROAS it spends £20 on ads to get it — £5 down, every time.

Source: The GROW Methodology™, Figures 2 and 4 — grow.online/methodology/

3. More reach for your healthy-margin products

The problem: an average target holds strong products below what they can afford — so they lose auctions.

Average target

A 65% margin product breaks even at about 1.5×
The blend holds it at 2.8×
Lower bid, lower Ad Rank, fewer auctions won

Sales you could win at a profit go to competitors — and never show in a report.

Bid per product

Bids to the level its margin supports
Shows on searches it used to miss
Not more spend — accurate spend, in more places

In the GROW method, reach is where most of the additional revenue comes from.

Source: The GROW Methodology™ — Build for reach — grow.online/methodology/

4. Returns and fees priced into every bid

The problem: revenue bidding ignores the costs that come after the sale. On a £50 product, they move the bid a lot.

Selling price without VAT£50.00

After purchase price only (£20)£30.00 — breakeven looks like 1.67

After payment fee, shipping subsidy, handling, service and other fees£22.90

After allowing for 5% returns£21.38

True breakeven ROAS (£50 ÷ £21.38)2.34 — 40% higher than it looked

ROAS bid at a 10% profit target3.05 — 305% in Google Ads

In plain English: A shipping subsidy is what delivery costs you beyond what the customer pays for it.

In GROW, MarginStack™ holds every cost per product — by CSV, Google Sheet or bulk defaults. Some costs beat none.

5. Protected cash flow and predictable month ends

The problem: ad spend leaves today. The profit it earns shows up weeks later, when finance checks the numbers.

Spend pools in thin-margin lines in a sale or busy spell
Month-end profit lands below plan
Budgets get cut — and sales fall with them
Targets loosen again, and the cycle repeats

In GROW, Price Suggest shows profit at each discount before a sale; Sale Impact measures what it really made after.

With profit bidding, every bid is costed before it's placed — so you know the profit when you decide, and can plan on it.

6. More market share without a margin squeeze

The problem: revenue bidding's only growth lever is lowering one target for everything — loss-makers included.

Start at 10%

GROW's recommended default
A healthy profit on every sale
Fine-tune once you see results

Chase share: 3–5%

Lower it on purpose
Wins more auctions and sales
Every bid still above breakeven

One control

Profit Control recalculates every bid
Balanced Growth, Aggressive Growth, Maximize Profit or Break Even
Override any product

You buy reach product by product, with the cost known up front — not by loosening the whole account.

7. Bids that keep up with costs and prices

The problem: a supplier adds £5 to a product making £10 a sale. Half its profit just went — and the bid doesn't know.

1Cost changesA supplier, courier or price change lands
2Bid recalculatedProfitClarity™ works out that product's new bid
3You approveUpKeep lists it — approve it, or let it auto-apply
4Big jumps heldUnusually large changes wait for your approval, so mistakes are caught early
5Sent and loggedBatched to Google Ads, and every change logged in Change Impact

Stale bids are the same problem as no bids. Every cost, price or target change moves the right answer.

Always currentYou approveEvery change logged

8. Profit bidding without changing your tracking

The problem: many profit tools swap your conversion value to profit, using their own tracking pixel.

Switching tracking to profit

A new tracking pixel to install
Bids move from revenue to profit overnight
Google's bidding has to learn again from scratch
Products without costs need separate campaigns

A big switch — and if a bid is wrong, you find out after the money is spent.

The GROW way

Your conversion tracking stays exactly as it is
Google keeps learning from the same revenue data
GROW works out the ROAS bid that makes that revenue profitable
Changes roll out step by step through UpKeep

In plain English: If tracking misses some sales (cookie consent, privacy settings), GROW's tracking accuracy setting adjusts bids for the gap instead.

Source: GROW profit bidding guide, GROW vs competitors — grow.online/guides/profit-bidding/grow-vs-competitors

9. Win the fewer slots in AI search

The problem: AI answers show fewer products. An average bid underbids your best ones exactly where the competition is.

Up to 40%fewer shopping results in AI Overviews, in current tests

73%of purchases start with a Google search

No opt-outGoogle matches ads to the question — you can't target or exclude the placement

Ads come from your existing Shopping and PMAX campaigns — no new campaign needed
Fewer slots means each one goes to a higher Ad Rank
A precise bid can win slots an average bid is priced out of

GROW gives each product the bid its margin can afford, so it can compete for every slot it's worth winning.

Sources: Google Ads Help, About ads and AI Overviews — support.google.com/google-ads/answer/16297775 · GROW — grow.online/guides/profit-bidding/why-use-profit-bidding

10. Profit to reinvest — growth that lasts

The problem: revenue growth that loses money can't be repeated. Profitable growth can.

Brands using the GROW method have seen between a 7% and 24% improvement on profit marginMore profit
Smaller, growing brands have seen up to 6× sales volumeFaster growth
Reinvest in product, stock and brandingA stronger range
Grow your teamMore capacity
Fund new channels from proven profitMulti-channel growth

Profit is the bedrock of the business. Profit bidding turns ad spend into the cash that funds what's next.

Source: GROW client results — what brands have seen, not a guarantee.

Is average bidding costing you? Check your account

Find groups where products with different margins share one target
List your 10 lowest-margin products and what they spent last month
Check whether returns and payment fees are in your bids
Note the last supplier price change — did any bid move?
Look at lost impression share (rank) on your best-margin products
Work out last month's profit after ads — not just ROAS

Key takeaways

One average target is right for almost none of your products
Profit bidding stops the losses and gives strong products the reach they can afford
Every cost, every change, priced in — so returns are predictable and cash flow protected
No change to your tracking with GROW, and changes roll out step by step
More profit to reinvest — brands using the GROW method have seen a 7–24% improvement in profit margin

Keep reading

Profit bidding uplift Where the profit hides in average-target campaigns — and how much bidding per product can win back. The GROW Guide to Profit Bidding The complete method, step by step — it starts with a 5-minute quickstart, then the full guide. Find your true margin Every cost of a sale, where to find each number, and a worked example from price to breakeven ROAS.

Run a test with GROW

GROW is a profit bidding and automation platform for Google Shopping. It works out the exact bid every product needs to make a profit — then keeps it right, automatically.

1ConnectLink Google Ads and Merchant Center. Your products sync in — nothing changes in your account.
2Add your costsUpload a sheet, or start with sensible defaults. Some costs are better than none.
3Set your profit targetWe suggest 10%. GROW works out the bid for every product.
4Launch a testStart with one brand or category, alongside your current campaigns, and compare.

Your test: Pick one brand or category, add its costs, set a 10% profit target, and let GROW run per-product bids alongside your current campaigns — no change to your tracking.

Create your free account Try the free demo

Why brands test GROW

No change to your conversion tracking
You approve every change before it goes to Google
Works alongside the campaigns you already run
No Google Ads expertise needed
Rolling 30-day plans — no long contracts

£1bn+incremental revenue since 2010

17,000+campaigns

3m+products

31+countries