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England · Incorporation Relief · CGT · Limited Company · Buy-to-Let

Incorporation Relief for Landlords UK 2026 — TCGA s162 and Property Portfolios

How TCGA 1992 s162 incorporation relief works for landlords transferring a buy-to-let portfolio to a limited company: the business activity test HMRC applies, SDLT costs, mortgage consent requirements, and when incorporation makes commercial sense.

9 min readUpdated 21 May 2026Last reviewed: 17 May 2026incorporation-reliefcapital-gains-taxlimited-companytax

How TCGA 1992 s162 incorporation relief works

  • s162 automatically defers CGT on the transfer of a business as a going concern to a company in exchange for shares — the gains reduce the base cost of shares received
  • Deferred gains come back into charge on a later disposal of the shares, plus any further gain on the shares themselves
  • Relief only applies where the entire business is transferred and consideration is wholly or partly shares — a cash element reduces relief proportionally
  • The relief is automatic (not elective) but can be disapplied by election

The business activity test — HMRC's challenge

  • HMRC position: passive buy-to-let letting is investment activity, not a business — s162 does not apply to portfolios that simply receive rent and carry out routine maintenance
  • Courts have generally supported HMRC: Ramsay v HMRC (2013) and Rignell v HMRC (2018) confirmed passive letting does not qualify
  • Stronger arguments for business status: active HMO management with staff; significant additional services; scale and systemisation comparable to a trading enterprise
  • HMRC advance clearance via the non-statutory clearance service gives certainty before proceeding

SDLT, mortgage consent, and practical considerations

  • SDLT: transfers to a connected company are charged at market value plus the 3% surcharge — can run to hundreds of thousands on a large portfolio
  • Partnership incorporation relief: FA 2003 para 18 gives partial SDLT relief for property partnership incorporations — substantially lower SDLT where a genuine partnership exists between spouses
  • Mortgage issues: buy-to-let mortgages are personal loans and cannot transfer to the company. New commercial mortgages (at higher rates) and fresh underwriting are required
  • New purchases in a company: for most landlords, buying new properties through a company (without an incorporation transfer) is simpler, avoids SDLT on existing stock, and still benefits from Section 24 exemption

Frequently asked questions

Can I defer CGT when transferring my buy-to-let portfolio to a limited company?+

Only if the portfolio constitutes a 'business' under TCGA 1992 s162. HMRC does not accept that standard passive buy-to-let letting meets this test. Courts have generally agreed. Active HMO operations or furnished holiday let portfolios have stronger arguments. HMRC advance clearance is recommended before proceeding.

Do I pay SDLT when incorporating a buy-to-let portfolio?+

Yes. Transfers to a connected company are charged SDLT at market value plus the 3% additional dwellings surcharge. There is no general SDLT relief for this type of incorporation (unlike for partnership incorporations under FA 2003 para 18). SDLT is often the main financial obstacle.

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