Umbrella payroll, self-assessment & contractor support

Contractor guides

Clear, current guidance on umbrella payroll, self-assessment, IR35 and getting paid — written for UK contractors rather than accountants.

Basics

How umbrella payroll works

Where your money goes between the agency invoice and your bank account — and why employer's NI changes the arithmetic.

Read the guide

Compliance

IR35 and compliance

Who determines your status, where the real exposure sits, and why PAYE removes the disguised remuneration risk.

Read the guide

Tax

How to file for self-assessment

Registering, gathering records, the deadlines that matter, and the mistakes that catch people out every January.

Read the guide

Getting started

Switching umbrella company

How to change provider mid-contract, what to tell your agency, and the questions to ask before you move.

Read the guide

Money

Understanding your payslip

Gross salary, income tax, National Insurance, holiday accrual — what each line means and how to check it.

Read the guide

Questions

Contractor FAQs

Quick answers on fees, switching, holiday pay, expenses and IR35 — the questions we are asked most often.

Read the FAQs

Tools

Run your own numbers

Guidance is useful up to a point — but the question most contractors actually want answered is what they would take home.

Our calculator uses the current 2026/27 rates and shows every deduction, including the employer costs that providers often gloss over. It is the same arithmetic we use when we quote you.

Want a guide on something specific?

If there is a contractor topic you would like covered properly, tell us. We write about what contractors actually ask, not what fills a content calendar.

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Questions we have not answered?

Our advisers will talk through your situation directly — no charge and no obligation to use us.