Smart Home Assistant

SmartThings Home Assistant Integration Ends 15 December

SepehrBy Sepehr· 10 November 2026· Updated 10 November 2026· 3 min read
✓ Independent — no paid placements✓ UK-tested in real homes✓ Cited sources
Samsung SmartThings branded display stand with hub and sensors at an IFA trade show booth

Key takeaways

  • SmartThings says the current Home Assistant integration stops working after 15 December 2026, and this applies to every Home Assistant user.
  • The replacement needs the Developer Plan at $4.99 a month for 100,000 API calls, with no pound price published yet.
  • SmartThings targets Home Assistant's 2 December release for the new integration, but that date is Samsung's plan, not Home Assistant's.
  • Matter devices can be shared to Home Assistant for free through multi-admin, but Samsung appliances have no documented free route.
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The SmartThings Home Assistant integration stops working after 15 December 2026, SmartThings has confirmed. Its replacement needs Samsung's paid Developer Plan, listed at $4.99 a month. SmartThings says the new integration should arrive in Home Assistant's 2 December release, but that date is Samsung's plan, not a Home Assistant commitment.

What has changed with the SmartThings integration?

On 4 November 2026 SmartThings staff posted that the current Home Assistant integration "will no longer work with SmartThings" after 15 December 2026, and that its replacement uses the new paid API plans released the same day (SmartThings Community). The cutoff applies to every Home Assistant user, including people in countries where the plan is not sold.

DateWhat happens
4 November 2026SmartThings API plans released; Home Assistant 2026.11 ships
2 December 2026Target release for the new integration (SmartThings' plan)
15 December 2026Current integration stops working

The Developer Plan lists 100,000 API calls a month, up to 10 installed apps and "personal household locations only" (SmartThings Developer). Local Smart Home Guide works that out at roughly 3,300 calls a day, shared with any other app on the same account (Local Smart Home Guide).

This replaces the timeline in our earlier SmartThings API fee explainer, which was written when paid access was expected to start in October. Home Assistant's own documentation page still carries that older October warning (Home Assistant).

What do I need to do before 15 December?

Wait for the Home Assistant release that contains the new integration, then swap over before 15 December; you do not need to pay before that. SmartThings' steps are:

  1. Update Home Assistant to the release with the new integration.
  2. Remove the existing SmartThings integration.
  3. Add SmartThings again; you are asked for a personal access token (PAT), which is valid for 24 hours.
  4. Check that your devices and automations still work.

SmartThings says automations survive because device IDs are saved in them and repopulate when you re-add the integration. Treat that as likely rather than guaranteed, and screenshot your key automations first. The replacement code was still an open pull request with no release milestone on 6 November, according to Local Smart Home Guide, so if 2 December slips, the gap before 15 December shrinks. Our Home Assistant 2026.11 guide covers what else changed this month.

Will the SmartThings plan be available in the UK?

Probably, but we could not confirm it from SmartThings itself. Matterhome lists nine countries including the United Kingdom, Germany, France and the United States (Matterhome), but the SmartThings developer page only says "available in select countries" and defers to a collapsed FAQ. No pound price has been published, only $4.99 excluding US tax, so expect roughly £4 a month before card fees, which is our own estimate.

Can I avoid paying for SmartThings with Home Assistant?

For some devices, yes. The cloud API is only needed for devices Home Assistant cannot reach any other way.

Device typeFree routeCatch
Matter devices on a SmartThings hubShare to Home Assistant with Matter multi-admin and a pairing codeMatter devices only; up to five connections per device
Zigbee devices on a SmartThings hubRe-pair to a Home Assistant Zigbee coordinatorReset each device and rebuild automations
Z-Wave devicesRe-pair to a Home Assistant Z-Wave stickSame re-pairing effort
Samsung TVsHome Assistant's local Samsung Smart TV integrationFewer features than the cloud route
Samsung appliancesNone documentedCloud API is the only documented path

Our Matter devices guide explains multi-admin sharing, and the Connect ZBT-2 review covers a Zigbee coordinator if you decide to move your sensors. For Z-Wave, see Z-Wave with Home Assistant.

Should you pay, migrate or move away from SmartThings?

Pay if you mainly use Samsung washers, dryers, fridges or other cloud-only appliances, because nothing free replaces that link. Migrate if your SmartThings hub is just a Zigbee or Z-Wave radio, since Home Assistant can do that job locally. If you are weighing the platform itself, our Home Assistant vs SmartThings comparison and SmartThings review cover the trade-offs.

What we don't know yet

We do not know the final Home Assistant release date for the new integration, the UK price in pounds, whether the 10-app limit will matter for typical setups, or how strictly Samsung will enforce the "personal household" wording. We will update this page when Home Assistant publishes its own notice.

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Frequently asked questions

Does the SmartThings Home Assistant integration stop working?
Yes. SmartThings says the current Home Assistant integration will stop working after 15 December 2026, and this applies to every Home Assistant user. The replacement integration needs Samsung's paid Developer Plan, listed at $4.99 a month for 100,000 API calls. SmartThings expects the new integration to ship in Home Assistant's 2 December release, which would leave about two weeks to switch, but that date is Samsung's plan and Home Assistant has not confirmed it. Until then the existing integration keeps working and you do not need to pay anything. The sensible preparation is to note which devices and automations rely on SmartThings, and to check whether any of them could connect another way, such as Matter sharing or a local Zigbee coordinator.
How much does the SmartThings Developer Plan cost in the UK?
SmartThings lists the Developer Plan at $4.99 a month, with US prices shown before tax, and has not published a pound price. At recent exchange rates that is roughly £4 a month, though that figure is our estimate, not a Samsung number, and card fees and VAT may change it. The plan includes 100,000 API calls a month and up to 10 installed apps, shared across everything on your Samsung account. Secondary coverage from Matterhome lists the United Kingdom among nine countries where the plan is sold, but SmartThings' own developer page only says it is available in select countries, so confirm the country list in the plan FAQ before relying on it. A community comment claiming an annual price of £59.88 is unverified.
How do I move SmartThings to the new Home Assistant integration?
Once the Home Assistant release containing the new integration is available, update Home Assistant, remove the existing SmartThings integration, then add SmartThings again. SmartThings says the new integration loads automatically when Home Assistant Core and OS are up to date, and you are prompted for a personal access token that is valid for 24 hours. Your automations should repopulate because device IDs are saved in them, but SmartThings advises confirming devices and automations afterwards, so screenshot important ones beforehand. Complete the swap before 15 December 2026 so your devices stay connected. The plan is only needed for the new integration, so you can leave the existing setup alone until the new release lands.
Can I use SmartThings devices in Home Assistant without paying?
Sometimes. Matter devices connected to a SmartThings hub can be shared to Home Assistant through Matter multi-admin using a pairing code, which does not use the Samsung cloud API, and each device supports up to five connections. Zigbee and Z-Wave devices can be reset and re-paired to a Home Assistant coordinator such as the Connect ZBT-2 or ZWA-2, though you will have to rebuild automations. Samsung TVs have a separate local Home Assistant integration. Samsung appliances such as washers and fridges have no documented free route, so owners of those will need the Developer Plan. Weigh the roughly £4 monthly cost against the time needed to re-pair a large device list.

Sources

Sources verified 2026-11-10

  1. SmartThings Community — Changes to the SmartThings integration for Home Assistant: what's happening and what you need to do
  2. SmartThings Developer — SmartThings API plans
  3. Home Assistant — SmartThings integration
  4. Matterhome — SmartThings' paid API plan is live, and Home Assistant's current SmartThings integration stops working after December 15
  5. Local Smart Home Guide — SmartThings Developer Plan: the Home Assistant integration needs a paid plan after Dec 15, 2026
  6. Wikimedia Commons — Samsung SmartThings, IFA 2015 (photo by dambranslv, CC BY 2.0)
›How we researched this

Claims in this article are checked against primary sources — manufacturer specifications, official documentation, Which? research, Ofgem guidance, or gov.uk — rather than forum threads or video reviews. Where the author has direct hands-on experience with a product (most Home Assistant, Zigbee, and home-networking gear is running in his own homelab), that is stated explicitly in the text.

For categories outside that personal setup — such as boilers, heat pumps, and other areas that are traditionally a heating engineer's domain — verdicts are built from cross-referenced manufacturer data, published lab results, and vetted expert and owner reviews rather than a claim of personal hands-on testing. See the editorial policy for the full methodology.

Sepehr

Written by

Sepehr

10+ years hands-on with Home Assistant & networking · Research-backed elsewhere · No brand deals

Smart home specialist with 10+ years running a self-hosted Home Assistant setup — Zigbee2MQTT, Frigate NVR, and local-first automations. Independent coverage for UK homes, no brand deals.

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