Pillar guides

Ten in-depth guides for Harrow property investors.

Long-form pillars on the topics that actually move the tax bill. Grounded in 2026 legislative reality: MTD ITSA April 2026, the Renters' Rights Act May 2026, the Section 162 substance test, Harrow's six-ward Selective Licensing expansion. Written by tax specialists, not content marketers.

MTD ITSA01 / 10

MTD ITSA 2026

From April 2026 every UK landlord with qualifying property and self-employment income above £50,000 must keep digital records, submit four quarterly updates, and file a Final Declaration. Joint ownership, SPV exclusion, and the new penalty-points system are where the practical traps sit.

14 min readRead pillar →
Incorporation02 / 10

Section 162 Relief 2026

Section 162 Incorporation Relief defers the personal CGT charge when a property business is transferred to a limited company. From April 2026 the claim is no longer automatic where the threshold "business" test is contested: HMRC requires up-front evidence of substance over passive investment.

13 min readRead pillar →
Harrow Local03 / 10

Harrow Property Investment

Harrow Council's six-ward Selective Licensing expansion (Edgware, Greenhill, Roxeth, Marlborough, Wealdstone), tightened HMO mandatory licensing standards, and 3.3% rental growth combine to make 2026 the most consequential local-compliance year for Harrow landlords since 2017.

13 min readRead pillar →
Renters' Rights04 / 10

Renters' Rights Act 2026

The Renters' Rights Act 2024 takes full effect in May 2026: Section 21 is abolished, all tenancies become periodic, the Decent Homes Standard extends to private rentals, Awaab's Law mandates rapid damp/mould response, and pet-tenancy rules tighten. The accounting and budgeting impact is material.

12 min readRead pillar →
Section 2405 / 10

Section 24 Restructuring

Section 24 turned mortgage interest from a deduction into a basic-rate tax credit. For higher-rate geared landlords it remains the most damaging single tax change of the last decade. The 2026 strategies are income splitting, debt restructuring, and selective incorporation.

13 min readRead pillar →
CGT06 / 10

Property CGT 2026

Property CGT in 2026 sits at 18% (basic rate) and 24% (higher rate) for residential gains, with the annual exempt amount cut to £3,000. The 60-day reporting and payment deadline applies to almost every disposal. This is where the calculation, reliefs and traps actually sit.

12 min readRead pillar →
Expenses07 / 10

Allowable Expenses Guide

The allowable expenses rules are where most HMRC enquiries focus. The wholly-and-exclusively test, the capital/revenue line, the Replacement of Domestic Items Relief, mileage at 45p/mile, pre-letting expense rules, and void period treatment are the core mechanics.

12 min readRead pillar →
SDLT08 / 10

SDLT Strategies

SDLT is the largest single transaction cost for property investors. The 5% additional-dwelling surcharge (raised from 3% in October 2024), the post-2024 tightening of MDR, mixed-use commercial rates, and the 2% non-resident surcharge each carry five-figure planning value.

12 min readRead pillar →
HMO & FHL09 / 10

HMO & FHL Accounting

HMOs and serviced accommodation occupy the most complex corner of property accounting. FHL abolition removed five tax advantages in one cliff-edge change; serviced accommodation operators face the £90k VAT threshold and Airbnb-fee accounting. HMO operators handle utility apportionment across multiple tenants.

12 min readRead pillar →
IHT10 / 10

IHT and Wealth Extraction

Inheritance Tax planning for property portfolios is a long game. The 7-year gifting rule, Family Investment Companies, discretionary trusts, the BPR-rentals trap, cross-option agreements, dividend vs salary extraction, and retirement-restructure decisions are the core mechanics.

13 min readRead pillar →

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