Martech Audit: A Step-by-Step Guide for Business Owners

The five lessons

Read these if you read nothing else.

1. About half of marketing software sits idle. Count yours before you buy more.
2. Every tool needs an owner, a cost, a renewal date, a count of active users and one job.
3. Each tool gets one verdict: keep, merge, replace or cut. Score it, do not argue it.
4. Test the data before you trust a report. If two tools disagree, one is guessing.
5. Write down every automation before you switch anything off. Skipping this step causes the outage.

What is a martech audit, and what do you get from it?

A martech audit is a review of every marketing tool you pay for. It checks what each tool costs, who uses it, what job it does and whether its data can be trusted.

Martech means marketing technology: your CRM, website tools, call tracking, ad platforms, email and text software, and reporting dashboards. If marketing pays for it or a customer touches it, it is in scope. Ask for five outputs:

1. A register of every tool, with owner, cost, renewal date and active users.
2. A verdict for each tool: keep, merge, replace or cut.
3. A data-trust result that says which numbers you can rely on.
4. A list of savings and risks.
5. A 90-day plan with an owner and date on every line.

How much marketing technology goes unused?

About half, on the latest figure. Gartner's marketing technology research puts actively used tools at 49%, and says just 15% of organizations qualify as high performers.

Most martech audit pages repeat 58% and 42%. Those are Gartner's 2020 and 2022 readings of capability used. They are not today's numbers. The 2023 reading fell to 33%, so 49% is a rebound that still leaves half unused. The measures differ, capability then and tools now, so read the trend as a direction.

Nobody planned this. Stacks grow one pitch and one renewal at a time. One caution: the panels lean large. Marketing Brew reports most 2025 Gartner CMO respondents ran firms earning over $1 billion a year. Use the figures as a reference point, not your average.

• 49%of marketing tools actively used, survey year not statedGartner, research page read October 2026
• 19.4%of marketing budget goes to martech, a five-year low, 2026Chief Marketer, June 2026
• 36%of software licences unused, all business software, 2026Zylo, 2026
• 35%of 506 IT professionals say software waste rose in a yearFlexera, 2025

What does unused martech cost a business like yours?

Do the sum on one line: revenue, times the marketing share, times the technology share, times the share not used. The table runs it for an illustrative $20 million business. Add your own numbers.

The result is a ceiling, not a saving. Unused capability is not removable cost. At the 2026 technology share of 19.4%, the same business spends about $298,800, and the unused slice is about $152,400. Start with your real software bills. The marketing budget data shows how that technology share compares.

What are the signs your marketing software stack needs an audit?

Our rule: two or more of these means audit now.

• The software bill has grown three years running.
• Two tools show different numbers for the same month.
• Nobody can say what a tool is for.
• A renewal surprised you.
• Someone wants a new tool before the last is in use.
• Someone rebuilds the monthly report by hand.

What are the seven steps of a martech audit?

Each step has an output and a time box. Together they fit inside two to four weeks.

1. Name one owner. One person, not marketing alone and not finance alone. Marketing misses tools on a personal card. Finance cannot tell what a tool is for. Time: day one.
2. Build the register. List every tool with its owner, monthly cost, renewal date, whether it auto-renews and active users in the last 90 days. Active users sit on each tool's admin page, under users or last login. Twelve months of card charges will show tools nobody listed. Time: week one.
3. Write each tool's one job in one sentence. If nobody can, flag it. Time: week one.
4. Follow one real lead. Trace a customer who paid last month from first contact to invoice through every tool. Broken handoffs show fast. Time: week two.
5. Test the data with the five checks below. Time: one hour, plus chasing answers.
6. Score and decide. Write one verdict per tool. Time: week three.
7. Write the change log and the dependency list before you switch anything off. Time: week four.

How do you delegate a martech audit this week?

Paste this brief into an email today. The person you assign can start without a meeting.

How do you score each tool?

Score every tool 0, 1 or 2 on five questions and write the score in the register. The best total is 10. Take answers from usage pages and the data test, not opinion.

How do you decide: keep, merge, replace or cut?

Add the five scores and apply the rules in order. The cut-offs are our working rule, not an industry standard. Adjust them, and write them down before you score.

How do you know if your marketing data is lying?

Adverity's 2025 research found 45% of the data marketers use to make decisions is incomplete, inaccurate or out of date, and 43% of CMOs trust less than half of it. Validity's 2025 report asked 602 CRM users. 76% said less than half of their CRM data is accurate and complete, and 37% reported lost revenue as a result.

Both are self-reported by publishers that sell data tools, so read them as a direction. Test your own data. These five checks take about an hour, and each has a pass or fail. Tracing a sale through the CRM handoff goes deeper on the source checks.

1. Closed revenue to source. Take last month's closed jobs and note the source your reports credit for each. Ask the customer or salesperson on five. Pass if no more than one disagrees.
2. Platform leads to CRM leads. Compare last month's count in each ad and form platform with the CRM. Pass if the gap is under 10%.
3. Ad spend to the card statement. Match last month's spend in each ad platform to the card. Pass if you can explain every gap in one sentence.
4. A 100-record sample. Count blank source fields and duplicates in 100 recent CRM records. Pass if fewer than 10.
5. Three customers back to first touch. Trace three paying customers to their first contact. Pass if each takes under ten minutes.
6. Result: pass four or five and your reports are a fair guide. Pass two or three and fix the failures first. Pass one or none and fix the data before you cut anything, since cutting on bad numbers removes the wrong tool.

How long does a martech audit take, and what does it cost?

Two to four weeks for a typical mid-market service business. The main cost is the owner's time, plus a few hours from finance and IT. We do not quote an outside price, because published prices come from sellers and vary widely.

If you hire help, ask for a fixed price, a date and a sample report, and check the auditor sells no software in scope. Run it in-house when one capable person can give it four weeks of mornings. The in-house or agency comparison covers cost and ownership.

Why write down every automation before you switch anything off?

This step prevents the outage. A form tool you plan to cut may send every enquiry to your CRM. A quiet tool may text customers after each missed call. Switch it off unlisted and the work stops quietly, and you see fewer leads weeks later.

For each tool, write down what triggers it, what it sends, where it sends it and who gets alerted. Then confirm something else covers each line. Keep that list as your change log and dependency list. Each tool is one part of a growth system that joins demand, follow-up and measurement.

Use the AI you already pay for

Many CRMs, ad platforms and form tools now include AI that runs on data you already hold. A separate AI tool adds a login, a connection and a renewal.

A CRM plan with AI lead scoring nobody switched on, next to a trial of a standalone scoring tool, pays twice for one job. Check each tool's settings for AI features in your plan. Turn one on, run it for a month, and compare it with the manual process. Buy new only for a job nothing in the stack can do.

What is the minimum stack for a service business?

Often an audit ends with a business needing less than it feared.

• CRM: one record of every contact and deal, with automatic follow-up.
• Call and form tracking: every lead tied to the source that paid for it.
• Analytics: one platform, checked against the CRM.
• Ad platforms: only the ones you spend on.
• Reviews: one way to ask for and answer them.

Where does a martech audit go wrong?

Most failures skip a step above.

• Auditing features instead of jobs.
• Letting the vendor up for renewal audit its own tool.
• Removing a tool before checking what depends on it.
• Replacing the whole stack at once.

What should you have after 30, 60 and 90 days?

Judge the audit on outcomes, not report size. Repeat it every twelve months, or sooner if the bill jumps.

What to check this week

Auto-renewal is the cost of waiting. Each contract that renews in the next 90 days is a chance to cancel.

1. Pull twelve months of card and bank statements and mark every software charge.
2. Count your tools. We found no verified published count for a business of 20 to 100 people, so your own is the first deliverable.
3. Send the delegation brief above to one named owner, with a deadline.
4. Run data checks 2 and 3 yourself: compare lead counts, and match ad spend to the card.

How we run it

We audit against how you win and keep customers, so the result is a list of decisions, not a shopping list.