How do tariffs affect DTC ad budgets?

Tariffs raise landed costs, compressing contribution margin per order. When acquisition costs rise as well, first orders can stop paying back, budgets come under scrutiny, and wasted ad spend is the first place to recover margin.

How do I cut ad spend without losing sales?

Cut non-incremental spend, not spend across the board. A causal read identifies which channels drive revenue that would not have happened anyway; the rest is where to test a cut first.

What is a wasted ad spend audit?

A measurement of how much of your budget produces no incremental revenue. Estimate it with the free calculator, then verify per channel with a causal read on your GA4 export.

How much have customer acquisition costs actually risen?

It depends on category, channel and market, and the published benchmark roundups disagree, so we do not quote a figure. Measure your own: divide new-customer ad spend by new customers, month by month, and check whether first orders still pay back. When they do not, cutting non-incremental ad spend beats cutting budget across the board.

What does the audit cost?

€99, one-time, on a GA4 export, refundable within 30 days, no questions asked. Pro at €299/mo runs the same model continuously.

Tariffs Took Your Margin. Ad Waste Takes the Rest.

Tariff churn raises landed costs you cannot negotiate away, and when acquisition costs climb too, first orders stop paying back. The one budget lever a DTC operator fully controls this quarter is wasted ad spend: the share of the budget that never caused a sale.

Three platforms, three answers, one budget to defend. Your GA4 export already holds the answer, and the first finding is free and never leaves your browser. Get your first finding free

By Joris van Huët, Founder & CEOUpdated 2026-09-24

Auditing it takes a causal read of your GA4 export, and cutting it is margin recovered without touching growth.

The squeeze, itemized

Tariff churn keeps landed costs unstable, and nobody can promise where rates settle. When acquisition costs rise at the same time, both lines of the unit economics move against you, and the reflex is to cut ad budgets across the board, which starves the channels that were actually working.

Cut waste, not working spend

Across-the-board cuts treat every euro as equally productive. They are not: platform-attributed revenue includes conversions that would have happened anyway. The causal question, which spend is incremental, is the difference between cutting fat and cutting muscle. A causal read can surface entire line items with no incremental contribution; the published case studies show what that looked like for named brands.

Run the audit this week

Start with the wasted ad spend calculator below for a first estimate, then run the €99 causal read on your GA4 export for the per-channel answer: what each channel caused, next to last-click, with a next step for each. Reallocate from non-incremental spend and your margin recovers without a single new customer.

Estimate your wasted ad spend

Enter your monthly spend, get a first estimate in seconds, then verify per channel with the causal read.

Open the calculator

Measure it, then decide

The method behind the read: causal attribution, incrementality testing, and marketing mix modeling, priced at €99 one-time or €299/mo.

FAQ

How do tariffs affect DTC ad budgets?
Tariffs raise landed costs, compressing contribution margin per order. When acquisition costs rise as well, first orders can stop paying back, budgets come under scrutiny, and wasted ad spend is the first place to recover margin.
How do I cut ad spend without losing sales?
Cut non-incremental spend, not spend across the board. A causal read identifies which channels drive revenue that would not have happened anyway; the rest is where to test a cut first.
What is a wasted ad spend audit?
A measurement of how much of your budget produces no incremental revenue. Estimate it with the free calculator, then verify per channel with a causal read on your GA4 export.
How much have customer acquisition costs actually risen?
It depends on category, channel and market, and the published benchmark roundups disagree, so we do not quote a figure. Measure your own: divide new-customer ad spend by new customers, month by month, and check whether first orders still pay back. When they do not, cutting non-incremental ad spend beats cutting budget across the board.
What does the audit cost?
€99, one-time, on a GA4 export, refundable within 30 days, no questions asked. Pro at €299/mo runs the same model continuously.