Average Revenue Per New User
Annual contracted revenue from users newly added in a period, divided by the count of those new contracted users.
◆ Currency
Formula
Built from
What it measures
The average committed annual revenue you pack into each newly contracted user seat. It is a booking-period average over new users only — not a per-customer or per-account figure, and not an average across your whole installed base.
Why it matters
Sales and product leadership use ARPNU to judge the commercial quality of new acquisition, not just its volume. A rising ARPNU means each new seat you sign is worth more — because pricing is working, mix is shifting upmarket, or customers are committing richer contracts. Comparing ARPNU to your acquisition cost per user tells you whether new bookings are economically sound or whether you're buying growth that won't pay back.
How to read it
Higher is better, but read it as a trend, not a snapshot — compare this period to the last few and to plan. Stable or rising ARPNU means new-seat quality is holding or improving; a sharp drop means you're either descending into a lower-priced segment, your sales team is chasing volume over value, or contract structure shifted. Pair it with cost per user: high ARPNU with flat or falling CACU is a green light; low ARPNU against high CACU is a payback problem. Frontloaded bookings can create seasonal swings, so normalize for that before reacting.
What good looks like
Good
ARPNU is predictable and holding or rising over recent periods, and it sits comfortably above your acquisition cost per new user; the right dollar level depends entirely on your market, pricing, and target customer.
Watch
ARPNU is volatile or stepping down period to period — often a sign of a shift toward lower-priced segments, a volume-over-value sales push, or a change in contract structure. Investigate the cause before treating it as a problem.
Bad
ARPNU sits below your cost to acquire each new user: you're paying more to land each seat than it commits in annual revenue, which never pays back unless retention is long and expansion is strong.
Watch-outs
- Conflating ARPNU with ARPU or NARPU. ARPU and NARPU average across the whole base; ARPNU covers only users contracted this period. Mixing them turns a new-bookings quality signal into a base census and hides downmarket drift.
- Counting pilot or non-contracted users in the denominator. Including evaluation seats inflates the user count and makes ARPNU look artificially weak — only signed, paying commitments belong here.
- Letting multi-year upfront deals distort the numerator. If New CARR mistakenly carries multiple years of value into one period, ARPNU spikes and breaks period-to-period comparability — always use the annual run rate, not total contract value.
- Ambiguous user definition. If some customers buy licensed seats and others contract named or unlimited users, decide once whether 'user' means seats or named users — a mismatched denominator causes reconciliation headaches every quarter.
Worked example
Hypothetical
In Q2 your team books $2.5M of new CARR across 500 newly contracted users, so ARPNU is $5,000 per new user per year. In Q1 you booked $2M across 400 new users — also $5,000. ARPNU is flat: same per-seat quality, just more volume in Q2. That stability is a green flag if your cost to acquire each user runs below $5,000.