Three rule changes reached UK holiday let owners between April 2025 and April 2026. The Furnished Holiday Lettings tax regime ended. Making Tax Digital for Income Tax began. England brought in a register that every short-term let must join. Each one creates new data requirements. Together, they change what your property management software needs to do.
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The English government confirmed that a national registration scheme for short-term lets will launch in 2026. The scheme was initially announced with an April target date. Implementation details have been slower than expected, but the direction is confirmed: mandatory registration is coming.
Here is what has been confirmed so far:
To register, a host must show that the property meets the following safety standards:
Most responsible hosts already have most of these in place. The new requirement is proving it to a central register, keeping documents current, and ensuring registration numbers appear across all platforms.
From 6 April 2025, the Furnished Holiday Lettings tax regime was abolished. This is not a future change; it has already happened. The impact on holiday let owners is significant:
| Tax area | Before April 2025 (FHL rules) | After April 2025 (standard rules) |
|---|---|---|
| Mortgage interest | Fully deductible against rental income | Relief capped at 20% (basic rate tax credit) |
| Capital allowances | Available on furnishings, fixtures, equipment | No longer available. Replaced by Replacement of Domestic Items Relief only |
| Capital Gains Tax on sale | Eligible for Business Asset Disposal Relief (10% rate on first £1m) | Standard CGT rates apply (18% or 24%) |
| Pension contributions | FHL income counted as "relevant earnings" for pension relief | No longer counts as relevant earnings |
| Joint ownership (married couples) | Profits split in any agreed proportion | Default 50:50 split unless Form 17 declaration filed |
The practical consequence: running a holiday let is now taxed the same way as a standard residential let. The tax advantages that once justified the higher operational costs of holiday letting over long-term tenancy have been removed. Profitability now depends entirely on operational efficiency, occupancy rates, and revenue per night.
With tighter margins, the tools you use need to work harder. Specifically:
From April 2026, landlords with gross annual property income of £50,000 or more must comply with Making Tax Digital (MTD) for Income Tax. The threshold drops to £30,000 in April 2027 and £20,000 in April 2028.
MTD requires:
HMRC has confirmed a 12-month grace period for penalty points on late quarterly updates for the first cohort (those joining from April 2026). That gives you a buffer, but not an excuse to delay preparation.
Your system must do one of two things. Send the MTD returns itself. Or give clean income and expense data, already sorted into categories, to software that does. That could be Xero, QuickBooks, FreeAgent, or a landlord tool such as Hammock or Landlord Studio.
The key requirement is that the data flows digitally. You may export a CSV from your system, change it by hand in Excel, and load it into your accounts. That breaks the digital link that MTD requires. The data must pass from system to system without manual rekeying.
Bringing together all three regulatory changes, here is a practical checklist of what your property management software should handle from 2026 onwards:
Most off-the-shelf holiday let platforms were not built with UK regulatory compliance in mind. They were built to manage bookings and sync channels. Where a platform tracks compliance at all, it usually just stores documents. You upload a PDF and set a reminder. It does not follow the end dates, warn you, or keep an audit trail.
None of the major platforms (Guesty, Hostaway, Lodgify, Bookster, Smoobu, Hospitable) currently offer built-in registration number management that auto-populates across all listing integrations. As the registration scheme goes live, this will likely be addressed, but it will be on each vendor's roadmap and timeline, not yours.
For MTD compliance, most PMS platforms integrate with Xero or QuickBooks, which handle the actual HMRC submission. The quality of the integration varies. Some push booking revenue and expense data automatically. Others require manual export and import. Check the actual data flow before assuming the integration meets MTD's digital link requirement.
The register, the safety certificates and MTD all ask the same thing of you. Show, later, that something was true on a date.
A PDF in a document store cannot do that. Somebody uploaded it and typed the date beside it. Both can be changed, and nothing shows that they were. A reminder is not evidence either.
On engage.re a certificate is attached to a declared record, for a named property, with a start and an end. Every action goes to a signed log, and each entry holds the hash of the one before it. Nothing can be added or replaced later without breaking the chain. The income and expense lines sit in the same data. The MTD figures are therefore a view of what you already hold, and not an export somebody edited.
Every operator we build for shares that foundation, so a rule change is made once for all of them. We explain that in bespoke software for a whole sector. We give the cost in what does it cost to own and run your own systems.
You may run several holiday lets in 2026 or later. You now carry a compliance load that did not exist two years ago. Registration numbers across platforms. Safety certificates with different renewal cycles. Quarterly HMRC submissions with property-level data segregation. Expense categorisation that matches the new tax rules.
A bespoke system can be built from the start with these requirements as core features, not afterthoughts. Compliance dashboards that show the status of every property at a glance. Automated document expiry alerts that escalate if ignored. Financial reporting that produces MTD-ready data in the exact format your accounting software needs. Registration numbers that propagate to every channel listing automatically.
The alternative is assembling workarounds across multiple tools and hoping each one updates its compliance features before you need them.
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