Most property investors setting up a company assume the small profits rate and marginal relief will apply automatically once profit is under £250,000. For a genuine buy-to-let or commercial letting SPV, that is usually right. But a company that has stopped letting to strangers, or never really started, can be a “close investment-holding company” without anyone noticing — and that status wipes out the lower rate entirely, on every pound of profit.
What a close investment-holding company actually is
Almost every owner-managed property company is a “close company” — broadly, one controlled by five or fewer participators, which covers the vast majority of family and single-director property SPVs. That label alone is not a problem. The separate question is whether the company also counts as a close investment-holding company (CIC) for the accounting period.
A close company avoids CIC status if, throughout the period, it exists wholly or mainly for one or more “excluded purposes.” The ones that matter to property businesses are:
- Carrying on a trade or trades on a commercial basis (development and trading companies, not investment holding).
- Making investments in land where the land, or a right or interest over it, is let to persons who are not connected with the company — ordinary commercial letting to genuine third-party tenants.
- Holding shares in, or making loans to, one or more companies that are themselves trading or in a qualifying group.
- Co-ordinating the administration of a group of two or more companies each carrying on a trade or other excluded-purpose activity.
If none of these apply for the whole period, the company is a CIC. There is no partial or blended answer — it is a period-by-period, all-or-nothing test.
Why a normal letting SPV is usually fine
A company that owns buy-to-let flats or a commercial unit and lets them to unconnected tenants on ordinary commercial terms sits squarely within the property letting exclusion. It is not a CIC, and it can access the small profits rate and marginal relief in exactly the way most investors assume. This covers the great majority of the SPVs we see — see our guide on when an SPV makes sense for the wider structuring question.
The exclusion depends on the tenant not being connected with the company. A property let to a director, a shareholder, or a close family member of either — rent-free, at an undervalue, or even at full market rent in some structures — does not automatically qualify, because the letting is not to a person outside the company's own orbit.
Where property investors get caught without realising
The cases we see most often are not aggressive planning gone wrong. They are ordinary events in the life of a property company that quietly change its purpose for a period:
- The company sells its portfolio and sits on cash. A company that disposed of its investment properties and is holding sale proceeds in a deposit account while the directors decide what to do next is not trading, not letting to third parties, and not holding shares in a trading group. For that period, it can be a CIC.
- A property is let to a connected person. A director or family member occupying a company-owned flat, even paying rent, can take that property outside the third-party letting exclusion if the letting counts as connected.
- The company holds a passive share or securities portfolio. Money parked in a general investment account rather than reinvested into let property or a trading subsidiary does not fall within any of the excluded purposes.
- A dormant or winding-down period between deals. A developer's company between projects, holding cash raised from a completed scheme before the next site purchase, can drift into CIC territory if that gap spans a full accounting period.
None of these require any intention to avoid tax. They are simply what a property company's balance sheet looks like at a particular point in its life — and the CIC rules do not care about intention, only about what the company's purpose actually was throughout the period in question.
What CIC status actually costs
A close investment-holding company pays Corporation Tax at the full 25% main rate on all of its profit, with no small profits rate and no marginal relief tapering, whatever the profit level. A non-CIC close company, by contrast, pays only 19% if profit is below the small profits rate threshold, and an effective rate between 19% and 25% if profit falls in the marginal relief band between the lower and upper thresholds — thresholds that are themselves divided between associated companies under common control.
On a company with, say, £40,000 of profit for the period, the difference between the 19% small profits rate and the flat 25% CIC rate is real money leaving the business every single year the status applies — not a one-off cost, but a recurring one until the company's purpose changes back.
Fixing it, or staying out of it
The test looks at the whole accounting period, so the practical fix is usually about timing and activity, not paperwork after the event:
- Reinvest promptly. A company holding cash between disposals and its next acquisition is at risk the longer that gap runs across a full period. Moving quickly into the next let property, or a loan to a trading group company, keeps the exclusion live.
- Keep connected-party lettings out of the SPV holding investment property, or accept the CIC consequence and price it into the numbers deliberately rather than by accident.
- Review group structure where a property company sits alongside a trading company. Holding shares in, or lending to, a trading subsidiary is itself an excluded purpose, which can keep a holding company out of CIC status even if it owns no let property directly.
- Check the position at year end, not just at incorporation. CIC status is assessed for the period just gone, so a company that was clearly fine when it was set up can still fail the test years later once its activity has moved on.
This is exactly the kind of thing that gets missed because nobody revisits it once the company is set up and trading normally. A change that looks purely commercial — selling up, taking a breather between projects, letting a flat to a family member while the market settles — can carry a Corporation Tax cost nobody budgeted for.
Common questions
What is a close investment-holding company?
A close investment-holding company is a close company that does not spend the accounting period wholly or mainly carrying on a trade, letting property commercially to unconnected tenants, holding shares in a trading group, or coordinating group administration. If none of those “excluded purposes” apply, the company is a CIC and loses access to the small profits rate and marginal relief, paying the full 25% Corporation Tax rate on every pound of profit regardless of size.
Does a normal buy-to-let or commercial property SPV count as a close investment-holding company?
Usually not. A company whose main activity is letting property to unconnected tenants on a commercial basis falls within the property letting exclusion and is not a CIC, so it can still access the small profits rate and marginal relief. The risk arises when the letting is to a connected person, when the company holds cash or investments rather than let property, or when it has stopped actively letting.
What does CIC status actually cost?
A CIC pays Corporation Tax at the full 25% main rate on all of its profit, with no small profits rate and no marginal relief tapering, however low its profit is. A non-CIC close company with profit inside the marginal relief band pays an effective rate between 19% and 25%, and one with profit below the small profits rate threshold pays only 19%.
Can a property company move in and out of CIC status?
Yes. The test is applied period by period, based on the company's purpose throughout that accounting period, not a permanent label. A company that lets commercially one year, then sells its portfolio and sits on the proceeds in cash the next, can become a CIC for that later period and lose marginal relief for it, even though it never had CIC status before.
Kieran Holsgrove is a Director and Co-Founder of Grafene Accounting, the property tax specialist firm based in Liverpool. He advises property developers, investors and landlords across Merseyside, Greater Manchester, Lancashire and Cheshire on tax structuring, developer VAT, SDLT and the long-view decisions that compound over the life of a portfolio.
This article is general information, not personal tax advice, and tax rules change. Your own position depends on facts we cannot see from here — please take advice before acting on anything above.