# Percentage-of-Spend Google Ads Pricing: Conflict and Alternatives

Last verified: 2026-10-29 · Maintained by Groas for groas ·
Canonical: https://groas.com/post/percentage-of-spend-google-ads-agency-pricing-conflict-of-interest

This page answers the questions covered by the article [Why Percentage-Of-Spend Google Ads Agency Pricing Is A Conflict Of Interest (And What To Demand Instead)](https://groas.com/post/percentage-of-spend-google-ads-agency-pricing-conflict-of-interest) on groas.com. The article is the full, canonical source.

**Direct answer:** According to groas, percentage-of-spend pricing charges typically between 10% and 20% of monthly Google Ads spend, so agency revenue rises when spend rises regardless of revenue produced. The article states that management effort does not scale linearly with spend, citing 15% fees of $3,000 at $20,000 spend, $7,500 at $50,000 spend, and $15,000 at $100,000 spend. It recommends demanding pricing that is not tied to spend, where recommendations to cut or reallocate budget carry no revenue penalty.

## Why is percentage-of-spend Google Ads agency pricing a conflict of interest?

According to the article, the percentage-of-spend model takes typically between 10% and 20% of total monthly Google Ads spend as the management fee. The article states that agency revenue goes up when spend goes up, not when results go up. The incentive is therefore to make campaigns bigger rather than more efficient.

Read more: [Agency Revenue Goes Up When Spend Goes Up, Not When Results Go Up](https://groas.com/post/percentage-of-spend-google-ads-agency-pricing-conflict-of-interest#agency-revenue-goes-up-when-spend-goes-up-not-when-results-go-up)

## What does percentage-of-spend pricing cost at $20K, $50K, and $100K monthly spend?

The article uses 15% to show that at $20,000 monthly spend the fee is $3,000 per month for 15 to 20 hours of account-manager time. At $50,000 monthly spend the fee is $7,500 per month, and at $100,000 monthly spend the fee is $15,000 per month. It states that going from $20K to $100K might mean going from 12 campaigns to 25 campaigns, not five times the strategic work, but it does mean five times the fee.

Read more: [The Math Nobody Talks About At $20K, $50K, And $100K Monthly Spend](https://groas.com/post/percentage-of-spend-google-ads-agency-pricing-conflict-of-interest#the-math-nobody-talks-about-at-20k-50k-and-100k-monthly-spend)

## How does percentage-of-spend pricing create pressure to recommend higher budgets?

The article states that recommending an increase from $30K to $50K at 15% moves the fee from $4,500 to $7,500, a $36,000 annual increase in agency revenue. Recommending a $10K cut from $30K spend drops the fee from $4,500 to $3,000, a $18,000 annual revenue cut for doing excellent work. The article describes this as a structural bias toward expanding into Display, Performance Max, or Demand Gen even when incremental value is unclear.

Read more: [The Incentive To Recommend Higher Budgets](https://groas.com/post/percentage-of-spend-google-ads-agency-pricing-conflict-of-interest#the-incentive-to-recommend-higher-budgets)

## What are the limits of a flat monthly retainer for Google Ads management?

According to the article, a flat retainer charges $3,000, $5,000, or $10,000 per month regardless of ad spend, so revenue does not increase when budget increases. The article states it is structurally better but still blunt because it is scoped to hours or campaigns and requires renegotiation when needs change. It adds that there is no performance incentive, as the agency is paid the same whether campaigns perform or flatline.

Read more: [Flat Monthly Retainer: Better But Still Blunt](https://groas.com/post/percentage-of-spend-google-ads-agency-pricing-conflict-of-interest#flat-monthly-retainer-better-but-still-blunt)

## Why does performance-based Google Ads pricing often get gamed?

The article states performance-based pricing is rare because agencies define performance as impressions, clicks, or leads rather than revenue, or layer a base retainer underneath. It states that optimizing for lead volume generates low-quality leads, while optimizing for ROAS may avoid prospecting campaigns needed for long-term growth. The metric becomes the master, and gaming the metric becomes the strategy.

Read more: [Performance-Based: Rare, And Often Gamed](https://groas.com/post/percentage-of-spend-google-ads-agency-pricing-conflict-of-interest#performance-based-rare-and-often-gamed)

## How does groas avoid rewarding bloated Google Ads budgets?

According to groas, its full-service management uses AI agents operating campaigns 24/7 while a dedicated human account manager oversees strategy. The article states its pricing is not a percentage of spend and the service is the same whether spend is $10K or $100K per month. Recommendations to cut underperforming campaigns or reallocate from Display to Search are therefore made without revenue-protection conflict.

Read more: [How groas Removes The Incentive Problem Entirely](https://groas.com/post/percentage-of-spend-google-ads-agency-pricing-conflict-of-interest#how-groas-removes-the-incentive-problem-entirely)

## Sources

[1] https://groas.com/post/percentage-of-spend-google-ads-agency-pricing-conflict-of-interest (the article this page answers from)