On the surface, an annual plan at $299/year and a monthly plan at $29/month look almost equivalent. Over 12 months, the monthly subscriber even generates more, $348 compared to $299.
So why do so many SaaS businesses find their monthly plan is the weaker product?
What monthly billing actually costs
Monthly billing comes with costs that annual billing largely avoids:
Churn processing. Monthly subscribers churn more frequently. Every churned subscription means a partial month of revenue you've already spent costs to deliver.
Failed payment handling. Failed payment rates are higher on monthly plans. Dunning emails, retry logic, and the occasional writeoff all have a cost in tooling, time, and recovered revenue you never see.
Processing fees. Each charge is processed separately. Twelve monthly charges means twelve separate fee deductions. One annual charge means one. On a $299/year plan, that difference adds up to roughly $6 to $8 over the year.
Running the numbers
Take a $29/month plan with a $6.50 product cost. After processing fees of around $1.14, your net per month is roughly $21.36. Over 12 months with no churn: $256.
Now take the equivalent $299/year plan. One charge, fees of around $8.97, same $6.50 product cost. Net: $283.53.
The annual plan delivers about $27 more per customer per year, before accounting for churn and support costs on the monthly cohort.
What this means for pricing decisions
If your monthly plan is your acquisition vehicle and your annual plan is your retention vehicle, the economics can still work, as long as enough monthly subscribers convert to annual.
But if customers are staying on monthly indefinitely, your reported revenue might look healthy while your actual retained margin is significantly lower than you think.
The only way to know is to track margin at the price level, not just at the business level.