I Estimated How Monthly Costs Would Change with Kiro's Credit Pooling Using Last Month's Usage Logs
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Introduction
On November 4, 2026, Kiro's credit pooling was announced.
The pool costs $20 per seat per month, and each seat adds 500 credits per month to the shared pool. If the pool runs short, an administrator purchases additional credits to cover the shortfall.
In this article, I used last month's (October 2026) Kiro usage logs to identify users whose monthly credit consumption was 500 or less. I then estimate how many leftover credits could be put to use as shared credits if those users were moved to the pool.
Assumptions for the Estimate
Pricing
The pricing is as follows. The amount of credits included in the seat price (hereafter, bundled credits) is also shown.
The shared pool (credit pooling) has no separate plans; there is only one type, shown below. It is available for 2 or more seats.
| Plan | Monthly price (per seat) | Bundled credits (per seat) | Additional credits (per credit) |
|---|---|---|---|
| Shared | $20 | 500 | $0.04 |
In the pool, bundled credits are used first each month and expire at the end of the month. Additional credits are valid for one year from purchase. The pool has no overage charges, and the usable amount increases only by the amount of additional credits the administrator purchases. If none are purchased, the usable amount is capped at the bundled credits for the seats.
The existing individual plans are the four from Pro to Power.
| Plan | Monthly price | Bundled credits | Per credit |
|---|---|---|---|
| Pro | $20 | 1,000 | $0.02 |
| Pro+ | $40 | 2,000 | $0.02 |
| Pro Max | $100 | 5,000 | $0.02 |
| Power | $200 | 10,000 | $0.02 |
The $0.02 per credit is the unit price of bundled credits. The shared additional credits cost $0.04, which is double the unit price of bundled credits.
Usage Logs and Estimation Method
For the usage logs, I used Kiro's per-user activity report. Daily CSV files are output to S3, and you can find credits used in the Credits_Used column, overage credits in Overage_Credits_Used, and the plan in Subscription_Tier.
The users who used 500 credits or less per month in October 2026 were 20 Pro users, and the total remainder after subtracting their usage from 500 is 7,641.4 credits (total consumption is 2,358.6).
I estimated on the assumption that these 20 users are moved to the shared pool and consume the same amount of credits in November as in October.
The monthly cost formulas are: for individual seats, "plan monthly price + overage credits × $0.04"; for the pool, "$20 × number of seats + shortfall credits × $0.04".
Estimate Results
As a case where the remainder (7,641.4 credits) of the 20 Pro users at 500 credits or less per month is almost entirely used up, I assumed one heavy user who stays on Pro and uses 7,600 credits per month.
The shared pool has 21 seats: the 20 users plus the heavy user. The bundled credits total 10,500, and consumption is 9,958.6, the sum of the 20 users' 2,358.6 and 7,600, so no additional purchase is needed.
| Item | Quantity | Monthly cost |
|---|---|---|
| Seat fee ($20) | 21 seats | $420 |
If we stayed on individual plans, all 21 users would be on Pro. For the heavy user, the overage rate of $0.04 applies to the 6,600 credits beyond the 1,000 bundled credits of Pro.
| Item | Quantity | Monthly cost |
|---|---|---|
| Pro ($20) | 21 users | $420 |
| Overage credits ($0.04) | 6,600 credits | $264 |
| Total | $684 |
The shared pool is $264 per month cheaper than the individual plans. The difference corresponds to the heavy user's overage charges.
Checks Before Migrating
The official documentation describes the conditions for migration.
- Once you move to the pool, you cannot return to individual subscriptions.
- You can select the users to move with the Switch to credit sharing wizard in Access management. The wizard lets you compare the current cost and the post-pooling cost side by side.
- In the month of migration, you are billed on a prorated basis for the days of individual subscription usage and the remaining days of the seat. This estimate does not include proration, so it will not match the billing for the migration month.
Summary
If there are many users at 500 credits or less per month and a small number of heavy users can make use of their leftovers, credit pooling can be expected to be effective.
However, if you move users who use more than 500 credits per month, or Pro Max (5,000 bundled credits) or Power (10,000) users, to the shared pool and the leftover shared credits become small, costs may increase due to purchasing additional credits ($0.04).
Also, billing for the shared pool consists only of seat fees and the additional credits purchased. It can also be considered when Kiro usage costs must be kept within a budget secured in advance.
Switching is said to be irreversible. Before moving users to the shared pool, I recommend estimating your company's monthly cost using Kiro's usage reports.
