Resources

Guides for UK accountancy firms

Tax and practice content for firms preparing landlord and sole-trader clients for MTD ITSA, navigating Section 24 and the April 2025 FHL changes, and rethinking how intake works.

MTD ITSA

The regulatory regime reshaping UK tax. Scope, mechanics, deadlines, penalties — across landlords, sole traders, and multi-source clients.

Property and landlord tax

Where Otto’s build is deepest. Nine guides on the rules that hit landlord clients hardest, from Section 24 through to CGT on disposal.

Section 24 mortgage interest restriction, explained

How the finance cost restriction works, why higher-rate taxpayers feel it most, and the three caps that govern the basic-rate reducer.

Allowable expenses for UK landlords in 2026

What you can and can’t deduct from rental income, the wholly-and-exclusively rule, and the rules landlords get wrong most often.

Capital vs revenue: the landlord expense decision

The line between deductible repair and non-deductible improvement, with worked examples HMRC actually contests.

Furnished holiday lets after April 2025: the new rules

What was lost (BADR, capital allowances, pension contributions, S24 exemption) and what former FHLs are now taxed as.

Replacement of Domestic Items Relief, explained

When a replaced sofa, fridge or carpet is deductible, when it’s an improvement that isn’t, and the like-for-like cap.

Property allowance vs allowable expenses: when each wins

Full relief, partial relief, the election rules, and the cases where the £1,000 allowance beats tracking actual expenses.

Rent-a-room scheme: when it applies and when it doesn’t

The £7,500 exemption mechanics, the qualifying conditions, and the interaction with private residence relief.

Joint property income: how to split rental income between spouses

The 50/50 default, the tenants-in-common exception, and how Form 17 changes the split (without letting you fudge the beneficial share).

CGT on UK property disposal in 2026

The 60-day reporting window, current rates, PPR relief mechanics, and the lettings-relief restriction that catches former-PPR landlords.

Practice and automation

The firm side of the conversation: client communication, intake economics, and what AI-driven intake actually does in 2026.

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