The solo founder's revenue stack

Updated 2026-08-04

Most advice about SaaS metrics is written for companies with a growth team. As one person, the useful set is much smaller — and the tooling budget should be close to zero for longer than you'd think.

The three numbers that matter

True MRR. What recurs, with every plan normalised to a monthly figure. Your baseline. Should move smoothly; if it's spiky, something is being counted wrong.

Today's cash. What actually arrived, net of fees. Spiky by nature — launches, annual renewals — and that's fine, because you don't forecast from it.

Churn. How fast the baseline leaks. And crucially, whether the leak is voluntary or involuntary, because those need completely different responses.

That's it. Under about $5k MRR, cohort analysis and LTV models are astrology — you don't have the sample size for them to mean anything.

What to ignore, for now

• LTV. Needs stable churn over many months. Early on it's a number that moves 40% when two customers leave.
• CAC. Meaningful if you're spending on acquisition. If you're posting on Twitter and shipping, it isn't.
• Cohort retention curves. Beautiful, and unreadable below a few hundred customers.
• NPS. Just talk to your customers.

The stack

Under $10k MRR:

Above $10k MRR, revisit: dunning becomes worth paying for once recovered revenue exceeds the subscription cost, which lands around $8,600 MRR.

The fragmentation problem

The specific thing that breaks this simplicity: selling in more than one place.

A Stripe SaaS, an iOS subscription, a Gumroad template, an old PayPal customer. Each platform shows you its own slice, none shows the total, and the tools built for Stripe-only businesses leave you reconciling by hand.

That's the gap FRGMNT fills — and if you're genuinely single-platform, you may not need it. Be honest with yourself about which you are.

A habit worth building

Log your MRR once a month, by hand, in a plain text file.

No tool gives you clean history you own. Vendors change, free tiers end, companies get acquired. Three years of your own numbers in a CSV is worth more than any dashboard, and takes thirty seconds a month:

echo "$(date +%F),$(npm run cli --silent -- mrr --json | jq -r '.mrr')" \
  >> mrr-history.csv

More on scripting it: query your MRR from the terminal.

The failure mode to watch for

Checking revenue too often. It's the most available feedback loop you have, which makes it the easiest thing to substitute for work.

A number that moves 0.4% a day tells you nothing on a daily timescale. Look at it once in the morning, then go and ship something.