Renewal exposure
What a missed renewal costs your whole fleet.
AWS does not renew a Reserved Instance for you. From the first hour after the end date, you pay the on-demand rate. A few late days per renewal add up fast across a fleet. See what that costs a year at your size.
The silent failure mode
A lapsed reservation costs more
every hour.
Reserved Instances do not renew by themselves. At term end, the instance keeps running as before. The price returns to the on-demand rate at once and stays there until someone notices. AWS can email a warning, but only after someone turns that alert on.
- +$0.56after 1 hour
- +$13after 1 day
- +$134after 10 days
- +$403after 30 days
…and that's one reservation.
Every plan includes the expiry radar, and Watch is free. One month of Autopilot costs $149. This one lapse costs more than that by day 12.
The radar watches every term end date on every account you connect. That holds for a handful of reservations or for thousands. Compare the plans for each fleet size.
Renewal exposure
One slipped renewal is bad. A whole fleet of them is worse.
Pick your size, then drag the sliders to how many reservations expire in a year and how many days a renewal typically slips before anyone notices. Same conservative math as thesavings calculator, scaled across your whole portfolio.
At 20 renewals a year, each 14 days late, that is $19,025 a year. That covers Autopilot's flat price 11× over.
At this size, one late reservation costs about $2.83 an hour. Autopilot costs about $0.20 an hour.
Reserver shows every end date on every account you connect, so you can renew on time. Watch is free, and Autopilot is $149 a month, and Scale is $499 a month. The price is the same for 3 renewals a year or 400.
Carry these numbers to the waitlist →Carries only the totals shown above, never reservation IDs, ARNs, or account details. Nothing leaves your browser until you submit.
These are estimates. Each size uses one sample reservation's yearly saving, the same figure as the savings calculator. The tool spreads that saving across the year. It multiplies by the days a renewal slips, then by the renewals you expect in a year. At one reservation, the result equals the savings calculator's missed-renewal figure. Reserver shows the exact math for every reservation you connect.
This page estimates. For the exact dates and dollar figures behind your reservations, paste your real AWS output into the Expiry Check. It's free, no signup, and nothing leaves your browser. Download the result as a calendar file or CSV.
A missed renewal at least ends once somebody renews. A reservation that drifts off its instance does not end on its own. See the coverage drift guide for a failure mode with no clock attached to it.
Renewals, answered
Questions about renewals and scale.
What happens when a reservation I own expires?
The instance keeps running, and its price returns to the on-demand rate at once. AWS does not renew a Reserved Instance for you. Reserver tracks each end date and flags the reservations that are close to it. Alert delivery and renewal autopilot are on the roadmap. Today you check the expiry radar and buy the renewal yourself.
AWS can email me before a reservation expires. Why use Reserver?
The AWS alert is opt-in and off by default. It emails up to 10 addresses 7, 30, or 60 days ahead, and on the day. It only notifies. It does not say what to buy. Reserver shows every end date from every connected account on one screen, and flags the close ones. It then shows the replacement purchase with its break-even date and yearly saving. Reserver does not send the alert itself yet. Email delivery is on the roadmap. Our advice: turn the AWS alert on, and use Reserver to decide what to buy.
I only have a handful of reservations, is Reserver worth it?
Yes, because Watch is free for one AWS account and any number of reservations. The median reservation in our AWS price data saves about $1,484 a year. Renew it 14 days late and you lose about $57. That loss is small, but on Watch it costs you nothing to prevent. At this size, most of the money is in instances that nobody reserved. On $3,000 a month of compute, that is about $10,530 a year at our conservative rates. If you add more accounts, Autopilot is a flat $149 a month, or $1,490 a year. The price does not change with the number of reservations.
We run many AWS accounts. Does Reserver scale to that?
Yes. Scale is the plan for that. Connect every account you run and see them all in one coverage map. The price is a flat $499 a month, or $4,990 billed once a year, for all accounts. You connect each account individually today. We are still building one-stack AWS Organizations enumeration, SSO/SAML, and custom approval chains. Check the roadmap before you plan around them. If you need an MSA, a security review, or an SLA, Enterprise covers that paperwork. AWS Savings Plans are on the roadmap. They are not live yet.
Do you take a percentage of my savings?
No, never. Reserver is a flat price, billed monthly or annually. With percentage-of-savings pricing, the vendor earns the most when your bill was the worst. We charge a fixed price for the software.
More free tools
Coverage Check
What are you not reserving?
Try it →Expiry Check
Your real renewal calendar. Right now.
Try it →Savings calculator
What Reserved Instances are worth to you.
Try it →Business case builder
Something to send to whoever signs.
Try it →Size flexibility calculator
One reservation of this size covers what, exactly?
Try it →Term Check
One year or three? Upfront, or not?
Try it →Convertible Check
Convertible costs more. Is it worth it?
Try it →Stop overpaying for a steady fleet.
Reserver is in early access. Join the list, and we will onboard you when we have capacity. Your first recommendation lands within minutes of connecting.