You cannot cleanly prove someone stayed because of a gift, so measure work anniversary gifts ROI with a small set of signals instead: redemption and delivery rates, whether people like and wear the items, photos and social shares, and engagement scores. Then frame the cost against replacement cost. A 50 to 100 euro gift is a tiny fraction of the 30% to over 150% of salary it costs to replace someone.
Recognition is culture, not a conversion funnel. Around 66% of employees say they would leave a job if they did not feel appreciated, and companies with strong recognition programmes report roughly 31% lower voluntary turnover (Nectar, Terryberry). You will never attribute a single resignation to a missing pair of socks. But you do not need to. Track a few honest signals, show traction, and make the cost argument. That is enough.
Why a hard ROI number is the wrong goal
Appreciation is a soft KPI. Retention has dozens of drivers: pay, manager, growth, workload, life events. Isolating the gift's contribution is not realistic, and pretending otherwise undermines your case. So do not build a heavyweight business case around a fabricated ROI percentage. Instead, treat the programme like any culture investment: pick a handful of leading indicators, watch them over time, and pair them with a clear cost comparison.
The signals worth tracking
These are the practical signals that tell you the programme is working, most of which Sunday's platform captures for you.
| Signal | What it tells you | How to capture it |
|---|---|---|
| Redemption rate | People actually claimed the gift | Redeem page completion |
| Delivery success | Boxes reached the right address first time | Address confirmation + tracking |
| Item satisfaction | People like what they got | One-tap rating or short pulse |
| Wear / use | The gift is kept and used, not binned | Office sightings, follow-up pulse |
| Photos and shares | Positive, organic reach | Social tags, internal channels |
| Engagement / eNPS | Broader sentiment over time | Existing engagement survey |
Two of these are quietly powerful. Redemption and delivery success are operational proof the programme runs cleanly, which matters most for remote and distributed teams where boxes most often go astray. A redeem page that confirms the address and lets people pick sizes is what stops the first delivery from failing, and nobody wants to pay for wasted shipping. Set that up once and it pays for itself in avoided re-sends. The how-to is in our work anniversary gifts program guide.
The maths finance cannot argue with
When HR or finance pushes back, drop the soft KPIs and reach for the cost comparison. Replacing an employee costs roughly 30% to 50% of salary for entry roles, rising to 150% or more for senior and specialised ones (G&A Partners). Against that, a 50 to 100 euro anniversary gift is rounding error. You do not need the gift to prevent many departures for the maths to work. Frame it that way and the conversation ends quickly.
A simple measurement routine
- Set a baseline: current redemption, delivery success and eNPS before you change anything.
- Track per cycle: redemption rate, delivery success, item rating, and any photos or shares.
- Review quarterly: watch the trend, not a single number, and adjust the products that score low.
- Report up with the cost comparison alongside the signals, never a single invented ROI figure.
For what to actually put in the box so these signals stay high, see our guide to the best products for work anniversary gifts.
Keep reading: work anniversary gifts
- Work anniversary gifts: the complete guide for 2026
- How to automate work anniversary gifts
- Best products for work anniversary gifts
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