Your colocation contract has a clause you probably forgot about. It auto renews. And if you try to leave after the renewal fires, you land on the holdover rate.
Holdover runs 20 to 25 percent above what you were paying. Every month. Until you fully move out.
That is the trap. Let me show you how to get out clean.
Why colo contracts renew on their own
Most colo agreements have a term of one to three years. Buried in the fine print is a notice window. You have to tell them you are leaving before that window closes. Miss it and the contract rolls into another full term or a month to month holdover, depending on the language.
The notice window is usually 90 to 120 days before the end date. Some data centers push it to 180 days. That is six months of lead time before your contract even ends.
Carriers write it this way on purpose. The window catches you off guard. You blink, you miss it, you pay more.
Find your two dates first
Pull your contract. Find the end date. Then find the notice period. Do the math and mark the last day you can give notice.
Put both dates in your calendar the day you read this. Not next week. Today.
Here is why the second date matters more. If your contract ends April 30, 2026 and your notice window is 120 days, your real deadline is December 31, 2025. Miss that and April 30 is no longer your exit. You are locked in longer.
What holdover actually costs
Say you pay $2,400 a month for a half rack with power. On holdover at 22 percent above, that jumps to about $2,928 a month.
Now say your move takes four months. Migrating servers, testing, cutting over DNS, decommissioning old gear. That is normal. Real migrations take longer than anyone plans.
Four months of holdover on that rack is roughly $2,112 in extra cost over your old rate. For doing nothing but running late. And the meter does not stop until the last piece of your gear leaves the cage.
The exit timeline that works
Work backward from your move, not from the contract date.
Start planning your migration six months out. If you are moving to a new colo or to cloud, get the new environment ready before you give notice. Do not give notice and then start looking. That is how people end up on holdover.
Give written notice inside the window. Certified mail or a signed email their contract accepts. Keep the proof. Data centers lose notice letters when it suits them.
Finish the physical move with a month of buffer before your end date. Cages, cross connects, remote hands, all of it. If they bill you for a cross connect you already killed, you want the paperwork.
The two fees that hit on the way out
Two charges show up on exit bills more than any other.
The first is a de-installation fee. Some contracts let the data center charge you to remove your own gear. Read that clause before you argue it.
The second is unpaid cross connects. You think you cancelled them. The billing system did not. This is the same pattern we see on internet bills, where a static IP block or a line item keeps charging after you stop using it.
Both are worth a phone call before you pay.
When you cannot make the window
Sometimes you find out too late. The window already closed. You are staring down another term.
You still have a move. Call your account rep. Ask for a mutual termination or a shorter bridge to month to month at your current rate, not holdover. They would rather keep you at your rate than lose you loud. Data centers hate empty cages.
It does not always work. But the ask costs you nothing, and the rep has more room than the contract shows.
Do this now
Pull your colo contract. Find the end date and the notice window. Mark both in your calendar today. That one step saves you from the holdover trap.
Not sure what your contract actually says? Send it to us and we will read the exit terms for you.
Related reading
→ See what a real bill review looks like
→ How carriers use renewal windows against you