Standard Reserved Instance Amortization

Background

There are multiple strategies for amortizing the upfront fees for Reserved Instance purchases and CloudCheckr offers several alternatives.

Standard amortization involves taking the upfront cost and dividing equally for each month of the RI. This amortized value is allocated to the account that purchased the RIs.

You can also take advantage of Proportional Payee Amortization, which adds an hourly amortized upfront fee to any EC2 instance that used the RI.

Monitoring the effects of Standard Amortization

You can monitor Amortization in the following reports:

RI Upfront Cost Amortization (Cost > AWS Billing > Upfront Cost Amortization) 

RI_Upfront_Cost_Amortization

RI_Upfront_Cost_Amortization_detail

Historical Monthly Billing Summary (Cost > AWS Billing > Historical Monthly Summary)

Historical_Monthly_Billing_Summary