How are you showing IT value other than ROI?

I always think of IT value in the context of better, faster, cheaper, safer.  It is a very simple model through which pretty much all of the positive outcomes we deliver with IT can be viewed through.  Then you have to offset that with the appropriate costs to get to an actual measure of value.  

I have a contrarian view to some of the others who have shared their valuable inputs. Everything can be measured and the value of IT can be derived using different metrics that go beyond ROI. Here are some impacts to measure:

1. Revenue: has IT empowered parts of the company to generate incremental revenue?
2. Profitability: process improvements, cost of a process, reduction in direct/indirect costs
3. Customers: Acquiring new or retaining old, reducing churn, these are examples of positive impact to customers
4. Employees: Better engagement, attrition, ease of use of tech, process automation, value add
5. Compliance: enabling regulatory compliance and governance
6. New differentiated capability: create new opportunities for the company or solve existing "this is the way it is done in our industry"

Almost all of the above have the ability to drive credibility and communicate value beyond the "Business As Usual".

The first step is building relationships with all the departments and functions you serve and to understand the each department's problems or needs. 

One way we've built these positive relationships and build trust and collaboration is provide great service: fast response time and have empathy for their problems and needs. Approach with a how can we help attitude. This allows IT to be brought in to collaborate and be part of the decision making. 

I've prompted semi annual meetings with each department. 

Also, present a visual of the the tech stack and infrastructure. People are always amazed at how many systems, platforms, and integrations a company uses. 

I am not able to provide ROI per se for my IT efforts.
However, complaints are down, compliments are up, support ticket frequency is lower, turnaround time for repair or refurbish is shorter.
When onboarding new employees, two and three at a time, I am able to completely set up account access in multiple systems, with MFA, and have fully configured computer and cellular devices, with all their login information, MFA, emails, chat, even browser favorites all set up before I deploy them like Christmas Morning. 
ROI is a great tool for measuring sales and marketing, or overhead cost justification. 
Happy end users who brag to their superiors about how well organized everything IT is for them is awesome.
Track your support tickets. Get granular. Battery health issues. check. access. connectivity. display. etc.
If you repurpose after refurbishment, track who had the device before. Keep a log with all devices for issues and correction.
Spreadsheet it. You'll be happy you did later.
If you have a great RMM platform, it can make this much easier.
WIth it you should be able to track your frequency, turnaround, issue subject, device age, users, etc.
I am also planning to implement polling all employees about their IT experiences annually. Just for my own edification, if nothing else.

Indeed, measuring ROI for TCO is not always easy for IT. However, there are various ways to show tangible and intangible benefits, which can then be translated into additional money (value). One tried and tested method is by developing and using KPIs. A few examples are;

Efficiency
- Cost savings 
- Resource optimisation 
- Improvement of process and/or delivery time 

Effectiveness
- Risk Management through architectural and technical compliances
- % of business / stakeholder satisfaction for IT services