North Metric

    What are New Paid Subscriptions?

    Count of new paid subscriptions added in the period — where a first paid invoice was generated.

    SAAS METRIC · OPERATIONALBy Riyad Yahya

    What are New Paid Subscriptions?

    New Paid Subscriptions is the count of subscriptions where a first paid invoice was generated during the period. It measures new paying customers entering your business — distinct from reactivations (returning customers) and expansions (existing customers upgrading).

    This metric directly feeds the “New Business” component of MRR Movement. When New Paid Subscriptions grows, your top-of-funnel is working. When it stalls while MRR still grows, you’re relying on expansion revenue — sustainable for a while, but eventually you need new logos.

    The formula

    ExampleNew Paid Subscriptions = COUNT(subscriptions with first paid invoice in period)
    VARIABLEWHAT IT IS
    First paid invoiceThe subscription's first invoice with status 'paid' and a positive amount — this marks the moment a subscription starts generating revenue
    In periodThe first paid invoice's finalized_at (or paid_at) falls within the reporting month
    Reactivations excludedSubscriptions that previously churned and returned are tracked separately in MRR Movement — they aren't 'new'

    Worked example

    In July, your Stripe account processed these subscription events:

    VARIABLEWHAT IT IS
    Brand-new signups22 customers signed up and their first invoice was paid
    Trial conversions8 trials ended and their first paid invoice was generated
    Reactivations3 previously churned customers resubscribed
    Upgrades12 existing customers moved to a higher plan

    New Paid Subscriptions = 30

    22 direct signups + 8 trial conversions = 30 new paid subscriptions. The 3 reactivations are tracked separately (they had a previous billing relationship). The 12 upgrades are existing customers, not new subscriptions.

    Why this matters

    If those 30 new subscriptions average $80/month, they contribute $2,400 in New Business MRR. If your churn rate is 4% and you have 200 active paid subscriptions, you’re losing ~8 per month. At 30 new, you’re netting +22 — healthy growth. Drop below 8 and the base starts shrinking.

    See the customers behind this numberMoney at risk across your paying customers, money leaking to old prices and forever discounts, and the first 5 to act on.Get your free churn report →

    How it’s computed

    North Metric derives New Paid Subscriptions from the MRR movement engine, which classifies every subscription change into one of five categories: New, Expansion, Reactivation, Contraction, and Churn.

    VARIABLEWHAT IT IS
    Data sourceActive subscriptions dataset from Stripe — the same source used for MRR Movement
    ClassificationThe movement engine identifies subscriptions where the first paid invoice was generated in the period — these are 'New Business'
    Context variablenew_business_count — the count of subscriptions classified as new business in the period

    The movement engine pipeline

    The movement engine compares the current period’s active subscriptions against the previous period’s. A subscription that appears for the first time with a paid invoice is classified as “New Business.” This is the same engine that produces the five-component MRR Movement waterfall — New Paid Subscriptions is the count behind the “New” component.

    Reactivations vs new

    If a customer previously had a paid subscription, churned, and then subscribes again, the movement engine classifies them as a “Reactivation” — not “New Business.” This distinction matters because reactivated customers have different retention profiles than truly new ones.

    Trial conversions

    A trial that converts to a paid subscription counts as a new paid subscription — the first paid invoice marks the conversion. The trial period itself doesn’t generate a count; only the moment payment begins. This aligns with Trial-to-Paid, which measures the conversion rate of this same transition.

    New Paid Subscriptions vs New Business MRR

    Both metrics come from the same movement engine classification, but they measure different things.

    New Paid SubscriptionsNew Business MRR
    What it measuresCount of new paying customersRevenue from new paying customers
    UnitCount (integer)Currency ($/€/£)
    A $29 signup and a $249 signupEach counts as 1$29 and $249 respectively
    Sensitive to plan mixNo — a customer is a customerYes — heavily weighted by plan price
    Best forFunnel health, acquisition velocity, churn offsetRevenue growth attribution, CAC payback, unit economics

    Common New Paid Subscriptions mistakes

    1. Counting reactivations as new. A returning customer has different economics than a first-time buyer — their CAC is lower, but so is their expected lifetime (they already churned once). Lumping them together distorts both acquisition and retention analysis.
    2. Including trial starts. A trial is not a paid subscription until the first invoice is paid. Counting trial starts inflates the number and creates a false signal of acquisition health. Wait for the conversion event.
    3. Ignoring the churn offset. 30 new subscriptions sounds great until you learn you lost 35. Always pair New Paid Subscriptions with Customer Churn Rate to see net customer growth.
    4. Not tracking by channel. Knowing you added 25 new subscriptions is less useful than knowing 15 came from organic, 8 from paid, and 2 from referrals. Attribution turns a vanity count into an actionable signal.
    5. Comparing months without adjusting for days. February has 28 days; March has 31. A 10% drop in New Paid Subscriptions from March to February might be entirely explained by fewer calendar days. Normalize to a daily rate for fair comparison.

    Frequently asked questions

    What counts as a new paid subscription?

    A subscription where the first paid invoice was generated during the reporting period. This includes direct signups (no trial) and trial conversions. It excludes reactivations (customers who previously had a paid subscription and are returning) and plan changes on existing subscriptions.

    Does a trial conversion count as a new paid subscription?

    Yes. When a trial ends and the first paid invoice is generated, the subscription becomes a new paid subscription. The trial period itself doesn’t count — only the conversion moment, when the customer starts paying.

    How does this relate to MRR Movement?

    New Paid Subscriptions is the count behind the “New Business” component of MRR Movement. If you have 25 new paid subscriptions averaging $100/month, the New Business MRR component is $2,500. The count tells you how many; the MRR tells you how much.

    What’s a good number of new paid subscriptions per month?

    There’s no universal benchmark — it depends on your business model, market, and stage. The meaningful comparison is against your churn: if you’re losing 15 customers/month to churn, you need more than 15 new subscriptions/month to grow. The ratio of new to churned determines whether your customer base is expanding, flat, or contracting.

    Why does North Metric use new_business_count instead of counting Stripe subscription.created events?

    Stripe’s subscription.created event fires when the subscription object is created, which might be a free trial with no payment. The movement engine waits for the first paid invoice — the point when the customer actually starts paying. This also correctly separates new subscriptions from reactivations, which Stripe’s event stream doesn’t distinguish.

    From metric to action

    North Metric ranks your paying Stripe customers by money at risk, so you see who is likely to leave before this number moves. See how churn prediction works.

    Further reading

    Related metrics

    All metrics →
    SAAS METRIC

    Active paid subscriptions

    Active Paid Subscriptions = COUNT(active subscriptions where price > $0)The running total of paying customers — new subscriptions add to it, churn subtracts.Open metric →
    SAAS METRIC

    Trial-to-paid conversion

    Conversion Rate = (Trials Converted to Paid ÷ Total Trials Ended) × 100What percentage of trials become new paid subscriptions.Open metric →
    SAAS METRIC

    Monthly recurring revenue (MRR)

    MRR = sum of each active subscription's normalized monthly amount, net of discountsNew subscriptions create the 'New Business' component of MRR movement.Open metric →
    See the customers behind your new paid subscriptions.Actions off until you turn them onGet your free churn report →