In-Depth Guides

Ten in-depth guides for UK contractor tax.

Long-form guides on the topics that move the take-home figure. IR35 status defence, the Ltd-versus-umbrella decision, the salary/dividend/pension mix, the Section 338 travel test, Section 455 on director's loans, MTD readiness, MVL on closing. Written for contractors, not generalists.

IR35 & Off-Payroll01 / 10

IR35 & Off-Payroll

IR35 reform from April 2021 shifted determination liability to the engager in the public and private sectors. Knowing the test, the appeal route, and the contractual defences is the difference between full take-home and 30%+ PAYE deductions.

14 min readRead guide
Ltd vs Umbrella02 / 10

Ltd vs Umbrella

The choice between operating through your own limited company and joining a PAYE umbrella reshapes take-home, control, and risk. The decision is not permanent but switching has costs and timing implications.

13 min readRead guide
Director Remuneration03 / 10

Tax & Remuneration

Tax efficiency for contractor-directors is layered. Salary versus dividends is the headline; pension contributions, trivial benefits, spouse income, RLP, and EV schemes compound the savings.

13 min readRead guide
Allowable Expenses04 / 10

Allowable Expenses

The expense rules for UK contractors are nuanced. The 24-month rule, the wholly-and-exclusively test, and the difference between updating skills and acquiring new ones each have specific edge cases that materially affect deductibility.

13 min readRead guide
Statutory Duties05 / 10

Statutory Duties

A contractor director's statutory duties combine corporate, tax, and payroll obligations on a single-employee company. Each filing deadline is fixed; missing any creates compounding fines.

12 min readRead guide
VAT06 / 10

VAT Planning

VAT for IT contractors and consultants is dominated by the Flat Rate Scheme decision. The 16.5% limited cost trader rate is the trap most contractors hit; the alternatives are worth modelling.

12 min readRead guide
HMRC & Disputes07 / 10

HMRC Compliance & Disputes

HMRC compliance activity on contractors has risen materially since the IR35 reform. Knowing what triggers an enquiry, how to respond, and when to escalate to tribunal materially changes the outcome.

13 min readRead guide
Wealth & Pensions08 / 10

Wealth & Pensions

A contractor-director has wealth management options that an employee does not: company pension contributions at scale, SSAS commercial property investment, and structured treasury for retained profits. Each compounds across a contracting career.

13 min readRead guide
Closing the Company09 / 10

Closing & Selling

Closing a contractor company is a tax-engineering decision. MVL plus BADR delivers materially lower tax than dividend extraction. The TAAR rule constrains returning to contracting after MVL.

12 min readRead guide
Harrow Local10 / 10

Harrow Local

Harrow-based contractors operate within a specific local context: proximity to central London, local high-street economy, and cost differential versus the City. Knowing the local resources matters.

11 min readRead guide

Reading is one thing. Getting it priced and filed is another. We match Harrow-area contractors with vetted IR35-aware accountants in 48 hours, free.