Gota

[heady loom]

What's the max number of months x could be?

[tame vortex]

24 months

[heady loom]

Hm ok. You could even avoid using a subscription schedule if you use this method: https://stripe.com/docs/billing/subscriptions/pause#free

[tame vortex]

Humm good to know, I create a paused subscription and set a date to resumes_at when start charging the monthly subscription, good

But how can I create a subscription with a one-time payment?

[heady loom]

Oh is the 1-time payment amount going to be different than the normal recurring amount?

[tame vortex]

Yes

[heady loom]

In that case, you could go this route: https://support.stripe.com/questions/add-a-one-time-fee-or-discount-with-a-new-subscription-plan to add on to the first invoice so it totals the 1-time payment amount and then right after pause the subscription. Alternatively, you could just invoice them outside of the subscription for a 1-time payment amount.

[tame vortex]

"Alternatively, you could just invoice them outside of the subscription for a 1-time payment amount."

But how can I create a subscription with an Invoice instead of a Price? Or create a subscription without any item? (Using API)

[heady loom]

Not possible

To do what you want requires workarounds

[tame vortex]

What do you recommend as the best workaround for my situation?

I need to create a subscription plan that includes a one-time payment, which will be a different price than the monthly charge. This subscription plan should last for 24 months, after which a recurring monthly charge should begin.

[heady loom]

I provided some alternatives above: #1102949951568355418 message. You could also have a subscription schedule and have the first phase have a price with the amount of the one time invoice you want and an interval of 1 year. If the number of months you need to cover is greater than a year, then just issue invoice items as credit for the second billing cycle. Then you can transition to monthly price after x months