maitiq guide
Does a Google Ads agency fee based on ad spend make sense?
maitiq · Published
A percentage-based Google Ads agency fee is easy to calculate, but it ties the agency’s earnings directly to the media budget. It can make sense when higher spend demonstrably creates more responsibility and work. The spend-linked incentive is inherent in the model; tiers, a cap and independent budget approval mitigate it rather than create or remove it.
How is the fee calculated?
Management fee = agreed fee base × agreed percentage
The contract must define “agreed fee base”. Ask:
- Net or gross costs?
- Costs actually charged, costs invoiced or the planned budget?
- Are credits deducted, and in which period?
- Do YouTube, Display, Shopping and third-party platforms form part of the base?
- Is there a minimum fee?
- Does the rate change in tiers, and marginally or retroactively?
- Is there a monthly or annual cap?
Without these definitions, two seemingly identical offers produce different invoices.
Which costs belong to the calculation base?
The contract should contain one line for every possible component:
| Component | included? | evidence | treatment |
|---|---|---|---|
| Google costs actually charged | yes/no | named billing or cost report | define the period, account IDs and currency |
| taxes and levies | yes/no | invoice | never include them tacitly |
| jurisdiction-specific surcharges | yes/no | separate invoice line | they arise where ads are served |
| credits and adjustments | yes/no | transaction overview | state the period rule explicitly |
| third-party platforms | yes/no | separate invoice | show the channel and rate separately |
| agency or tool costs | no, unless expressly agreed | supplier invoice | do not add them to the base circularly |
| planned budget that was not spent | yes/no | budget plan | explain any deviation |
A verifiable base names a report, a currency, a period and a rule for subsequent adjustments.
Why plan, charges and invoice diverge
These three figures can differ. The differences may lie in budget management, in the platform’s billing or in the agency’s invoice; the reconciliation shows which cause actually applies.
- The average daily budget is not a daily cap. For most campaigns that use an average daily budget, Google states a daily limit of twice that budget and a monthly limit of 30.4 times that budget. With an average daily budget of CHF 1,000, the monthly formula gives CHF 30,400, provided the stated budget remains unchanged for the full month.
- The average daily budget is also not Google’s only campaign budget. For new Performance Max, Search, Shopping, Demand Gen and YouTube campaigns, Google documents a campaign total budget: this has no daily limits, and the advertiser is not charged more than the total budget. Which figure belongs in the calculation base is therefore decided by the cost source named in the contract – not by the budget field.
- If overdelivery exceeds this limit, Google credits the excess. Further adjustments cover invalid activity, overdrafts on manual payments and goodwill.
- These credits appear in the billing summary, in the transactions and on the monthly invoice, but not necessarily in the same period as the original charge.
- Jurisdiction-specific surcharges depend on where ads are served, not on where your organisation is based. They appear as their own invoice line and are themselves subject to taxes where applicable.
- With monthly invoicing, the actual usage is billed. A credit line is a limit on outstanding unpaid charges, not the monthly campaign or account budget.
All points come from the Google Ads help on spend management, average daily budgets, campaign total budgets, credits and adjustments, monthly invoicing and jurisdiction-specific surcharges; they describe platform billing, not your agency contract. The contract must therefore declare exactly one of these figures as the base. “Advertising spend” on its own is not enough as a base.
How do the minimum fee, tiers and cap work?
A minimum fee (often called a “floor” in offers) is the amount below which the fee does not fall; a cap is the amount above which it does not rise. Both are optional – the contract should state explicitly whether they apply. When both apply, the order below governs; when neither is agreed, the tier result remains the fee. Both take effect only after the tier calculation:
fee = min(cap, max(minimum fee, tier result))
The order is part of the price. A minimum fee above the cap is a contractual contradiction and must be resolved before signing; the calculator does not validate that combination. In offers, the minimum fee usually appears as “rate applied to the base or minimum amount, whichever is higher”. Check whether it applies per month, per quarter or per account.
Marginal or retroactive tiers?
This distinction can produce a substantial price difference. For illustration, assume a base of CHF 60,000 per month, 10% up to and including CHF 50,000, 8% above that.
| Variant | calculation | fee |
|---|---|---|
| marginal, only the amount above the threshold | 50,000 × 0.10 + 10,000 × 0.08 | CHF 5,800 |
| retroactive, new rate on the whole base | 60,000 × 0.08 | CHF 4,800 |
The same inputs, a CHF 1,000 difference per month. Retroactive tiers also create a jump: with a base of CHF 50,000 the fee is CHF 5,000.00, at CHF 50,001 it is only CHF 4,000.08. One franc more media spend lowers the fee in this model by CHF 999.92. Marginal tiers are continuous and therefore easier to budget.
This is where maitiq differs: with a quote per account, the tier question does not arise – there is no spend threshold that changes the fee rate.
What happens when the budget increases?
Purely illustrative: an annual budget of CHF 500,000 at 12% gives a fee of CHF 60,000. At CHF 650,000 it is CHF 78,000.
650,000 × 0.12 − 500,000 × 0.12 = CHF 18,000
With a flat rate, the rate on additional spend equals the nominal rate: the additional CHF 150,000 again costs 12%. The decisive question is not whether the agency may earn more, but what additional responsibility justifies that amount: new markets, campaigns, feeds and risks – or merely higher bids within an existing structure.
If the base falls, a minimum fee prevents the proportional decline; a sensitivity curve therefore maps the rate, minimum fee, tier type and cap together.
Where does the structural conflict lie?
Where a positive rate applies without a binding minimum or cap, the fee rises with the base: a budget increase then also raises the agency’s revenue, and a recommendation to spend less lowers it. Retroactive tiers can even lower the fee at the threshold, as the example shows. This relationship is mathematical, regardless of any individual’s motives.
The first countermeasure is governance:
- Budget increases require approval from a named person on the client side.
- The recommendation shows expected impact, uncertainty and marginal return.
- Fee and budget decision are assessed separately.
- A cap limits automatic fee increases.
- Declining tiers reflect economies of scale.
- Reviews compare effort and price base at a fixed cadence.
The second is a fee that does not contain the link in the first place. maitiq quotes a fee per account: the fee is not tied to the media budget – maitiq does not earn more when your advertising spend rises.
What do public Swiss sources really show?
The current sources answer different questions and must not be mixed. The LSA/SWA industry indicator 2026, published on 7 January 2026, is based on an online survey of 145 advertisers in German- and French-speaking Switzerland in October and November 2025. Among the published remuneration models, percentage-based fees are cited at 18%. This 18% is the frequency of a model mention, not the level of the fee. The values are not added together or treated as exclusive market shares; the survey covers the communications industry in general and does not report a Google Ads subgroup.
The current OFCOM (Federal Office of Communications, BAKOM) page “Online media: funding” of 8 December 2025 cites an expert estimate for 2024 of CHF 1,220 to 1,494 million in search engine advertising revenue from Swiss advertising money. That shows the scale of the channel, but neither agency fees nor a Google-specific share or a suitable rate.
The dated provider pages also remain individual cases. On 7 July 2026, digital M publishes its own model of 15% of ad spend or at least CHF 800 per month. On 12 March 2026, BRANDFUSION describes model types and ranges, but names no rate of its own and discloses no representative method. The pages therefore substantiate their own statements, not a market standard; use real offers for your identical scope of services.
How do you reconcile the monthly invoice?
- Fix the billing period, account IDs and currency.
- Export the media cost source named in the contract.
- Deduct agreed exclusions and credits according to the period rule – but only once: if the chosen source already includes a correction, do not deduct it again.
- Apply tiers, then the minimum fee, then the cap, in that order.
- Compare the invoiced amount with the calculated fee.
- Have every difference clarified with its source and the person responsible.
Illustrative monthly reconciliation
Freely chosen inputs: the named source shows CHF 40,000 in charged media costs before the correction; the rate is 8%, the minimum fee CHF 2,000, the cap CHF 3,500. A documented credit of CHF 2,000 is deducted in the same period.
adjusted base = 40,000 − 2,000 = CHF 38,000
fee = min(3,500, max(2,000, 38,000 × 0.08)) = CHF 3,040
The invoice shows CHF 3,200. The tool shows a difference of CHF 160 and does not claim that the invoice is wrong. Working backwards, the difference corresponds exactly to 8% of the credit: 2,000 × 0.08 = 160. The difference would be consistent with the credit not yet having been taken into account. Whether that is the reason, and which period applies, must be clarified using the billing statement and the agreed rule. The period rule decides which figure is right: if “charge in the month, adjustments in the following month” applies, CHF 3,200 is right and the following month’s base must fall by CHF 2,000. If “adjustments in the original period” applies, CHF 3,040 is right. The difference remains open until the source and the rule are documented. All figures are freely chosen and only show the order of calculation.
Tool: fee calculator and invoice reconciliation
The tool is one calculator for a single, freely chosen billing scenario. It draws no curve and does not produce an automatic scenario table.
Input: raw advertising costs, exclusions and the period’s credit, the rate, the selected tier convention, an optional second tier, and optional minimum fee and cap.
Output: the adjusted basis, the fee before minimum and cap, the contracted fee, the binding rule, the effective rate fee ÷ base × 100, the fee credit, the outstanding amount and the invoice difference from the contracted fee. The effective rate is N/A at a zero base.
Manual comparison: run a low, a planned and a high base in turn, record the outputs and compare the points immediately at or above the threshold. Those are manual comparisons, not a chart.
Interpretation: if raw costs, the rate, current exclusions or the current-period credit are blank, the results that depend on them stay open; the same applies to a partly filled-in second tier. Enter an explicit zero for a correction that is known to be absent; an empty optional minimum or cap means the clause does not apply. Fee credits and payments affect the separate outstanding amount, not the displayed invoice difference from the contracted fee. A credit for the next period is flagged for the reader to carry into the next period; the current basis stays unchanged. A hint appears when the difference numerically matches the rate applied to a documented correction. The tool outputs neither a recommendation nor a market average.
Fee calculator and invoice reconciliation with your own contract figures
All fields start blank. Tiers, rate, minimum and cap are your contract figures; the calculation separates media basis corrections, fee credits and payments already made.
- Adjusted media basis
- N/A
- Fee before minimum and cap
- N/A
- Contracted fee after minimum and cap
- N/A
- Binding rule
- N/A
- Effective rate
- N/A
- Credit against the fee
- N/A
- Outstanding amount after payments
- N/A
- Invoice difference from the contracted fee
- N/A
Note: Raw advertising costs are missing.
Adjusted basis = raw advertising costs − exclusions of the same period − media basis credit when the period selection assigns it to the current period. Fee before minimum and cap = basis × rate in percentage points / 100 in the single-rate case; with tiers, the selected convention applies. Then the minimum, then the cap; after that the fee credit and payments. The invoice difference compares the invoice with the contracted fee. A zero basis yields N/A for the effective rate; minimum and cap apply only when entered.
What maitiq offers instead of a percentage fee
maitiq offers management per account for a defined scope of services; media budget and fee remain two separate figures.
Budget pacing and budget reallocation run daily as a workflow by default – with no promise of daily human involvement. Every budget proposal names the action, the rationale, the supporting data and the relevant old and new values. In manual mode you decide; an explicitly configured limited autopilot can approve and apply eligible proposals through the controlled, logged path within its permissions and limits. Approval is therefore not invariably another human step.
How do you compare alternatives neutrally?
Compare fees for the same scope of services – what matters is that the formula fits the work. The model logic at a glance is in the pricing model comparison, and the separation of media budget and fee in the guide separating advertising spend from agency fees. The broader context is provided by the agency cost guide; for comparing alternatives, use the total cost calculator and the offer checklist.
A percentage model can fit when operating effort actually grows with advertising spend and tiers, cap and budget approval are settled.
FAQ
Are 10% or 15% standard market rates?
The current sources reviewed name no representative Swiss Google Ads fee rate. The 18% in the LSA/SWA industry indicator is the frequency of the model mention, not the level of the fee. digital M names 15% only for its own offer. Neither is a Swiss negotiation benchmark.
What is the difference between marginal and retroactive tiers?
With marginal tiers, the new rate applies only to the amount above the threshold; with retroactive tiers, to the entire base. Identical inputs produce different invoices, and retroactive tiers create a jump at the threshold.
What is a cap?
A contractual upper limit for the management fee within a period. It takes effect after tiers and the minimum fee.
Are credits taken into account automatically?
Only if the contract names the cost source, the period and the adjustment rule. The fee treatment then follows the agreed source and period rule; merely naming a rule does not automatically process a credit. Credits for overdelivery, invalid activity or goodwill may appear in a different month from the original charge.
Is the average daily budget a cap for the base?
No. For most campaigns with an average daily budget, Google states a daily limit of twice that budget and a monthly limit of 30.4 times it, provided the stated budget remains unchanged for the full month. A campaign total budget, which Google documents for new Performance Max, Search, Shopping, Demand Gen and YouTube campaigns, by contrast has no daily limit, and the advertiser is not charged more than the total budget. In every case the calculation base follows the cost source named in the contract, not a budget field.
Should the agency be allowed to approve the media budget?
The operational recommendation can come from the agency; financial approval rests with a named party on the client side or with an explicitly configured limited autopilot. This is also how maitiq works: a budget proposal carries the action, the rationale, the supporting data and the relevant old and new values; in manual mode you decide, and a limited autopilot can approve and apply eligible proposals through the controlled, logged path within its permissions.
Does a percentage model prove poor incentives?
No. It shows a structural link between spend and fee. Whether a contract is appropriate depends on the scope of services, tiers, the cap, approvals and actual responsibility. maitiq resolves the link differently: the fee is offered per account and does not change with your advertising spend.
Sources and how to read them
The six Google help pages explain the platform’s features and billing; the LSA/SWA industry indicator 2026 is a survey in the communications sector; the BAKOM page supplies market-size evidence; the two provider pages describe their own statements. Publications by providers and associations should be read accordingly, not as a general market price or proof of success. Information about how maitiq works is available at maitiq.com.
To compare fees and services, we also include your existing offer or your billing statement; these details are not held in the Google Ads account.