EU Data Act Cloud Switching Costs

The export finished at two in the morning. The bill turned up three weeks later, and the line that stung was not storage or compute. It was the charge for moving your own files off the platform. That fee is what the EU Data Act cloud switching rules were built to abolish, and there is finally a date on it.

The date is 12 January 2027. From that day a provider covered by the Act cannot bill you for leaving, and the European Commission says so in its own Data Act explainer. Everything before that day sits in a halfway house where the charge is still legal, but only at cost, and only for costs the provider can actually point to.

Why does leaving a cloud provider still cost money?

Because the meter runs on data leaving the building rather than data sitting in it, storage looks cheap right up to the moment you try to move out, and the exit charge is the rent nobody quoted you. Providers price ingress at zero and egress by the gigabyte, which is a perfectly rational way to make a bucket sticky.

That asymmetry is the whole game. You are never charged to hand over your data, only to take it back, and the bill scales with how well the platform has served you. The bigger your archive grew, the more it costs to stop trusting the company that holds it. This is the same arithmetic that decides renting cloud storage against owning a NAS at home, except at company scale it arrives as one invoice.

The conventional advice, that you should architect for portability from day one, is mostly a way of spending money now to avoid spending it later. Sometimes that pays. Often the abstraction layer costs more than the exit fee ever would, and the cleaner move is to accept the lock-in and know the price of the door. Anyone who has tried to back up an iPhone straight to an external drive knows the shape of this problem already: the data is yours, the route out is the vendor's.

How much does it cost to move 2 TB out of AWS today?

EgressCost checked AWS list pricing for US East transfer to the internet in September 2026, and that rate card decides most of these arguments. It is the figure finance will see. Four numbers set the calculation.

Work the archive figure through yourself, because no invoice shows you the sum in advance: 2 TB is 2,048 GB, the first 100 of them ride free, and the remaining 1,948 at the first-tier rate land you just under the price of a mid-range phone. That is our arithmetic on a published rate, not a quoted number. The notice ceiling matters just as much, because it is the one clause a provider cannot draft around, and it means no exit conversation can legally be stretched past a quarter.

EU Data Act cloud switching: wait or move now?

Wait if the move can slip a quarter without costing you anything, and move now if a contract renewal or a price rise is already forcing the issue. The table below splits the two windows apart.

Two things change on that date and one thing does not, which is why a straight before-and-after reading is the only honest way to look at it. The switching mechanics below follow the Data Act as read by Pinsent Masons, and the prices are AWS's own.

Read the break-even row slowly, because you compute that one yourself. Divide your expected exit bill by what the old provider costs you each month, and you get the number of months of double-running that the wait can absorb before it stops paying. A shop paying $300 a month for a 10 TB estate can afford roughly three months of overlap. A shop paying $3,000 cannot afford one.

Does the EU Data Act apply to SaaS?

Yes, a SaaS subscription is in scope wherever it meets the Act's definition of a data processing service, which pulls your project tracker and your accounting tool into the same switching regime as a raw storage bucket. Greenberg Traurig set this out in September 2025.

That is the part most coverage misses, because the story gets written as a hyperscaler story. The small tools are where lock-in actually hurts, since a team of nine can leave a storage provider in an afternoon and still be trapped in a task tracker holding six years of comment history. On-premise systems and private cloud sit outside, along with the heavily individualised builds that were never really a product.

Friction points before you pull the plug

Plenty still bites after the free-exit date arrives, starting with the charges the law deliberately leaves standing, the export formats nobody will put in writing, and a transition clock your provider is allowed to stretch when the work is genuinely hard.

The exemption that will catch most teams is the multi-cloud one. If you keep both providers alive and shuttle data between them, that traffic is ordinary usage and it bills like ordinary usage, whatever the calendar says. Only the act of leaving goes free. Or rather, only the act of leaving completely. Plenty of architectures that call themselves portable are permanent two-provider setups the Act does nothing for.

The second trap is behavioural rather than legal. A rule landing on a date does not change a company's habits on that date, as India's crackdown on dark patterns at checkout showed at consumer scale. Expect the first quarter of the free-exit regime to be full of technically compliant friction, just as the lock-in trade-off between an eSIM and a physical SIM survived every rule written about number portability.

• A renewal that auto-extends before January quietly buys the provider another year of your data.
• Export formats that no rival can import satisfy the letter of a right and none of its purpose.
• Support you asked for during the move stays billable, so agree its scope before the work starts.
• A delay that arrives without notice is not a technical extension, it is a negotiating position.

Open last month's invoice this week and find the data transfer line. If it is small, or if your move is a clean break from a provider that already waived the fee, start now and stop paying to postpone a decision you have made. If it is large and nothing else is forcing your timing, put the migration in the January column, write the notice letter now, and let the deadline argue on your behalf.