What is an umbrella company in the UK?
An umbrella company formally employs you on a PAYE basis: it runs payroll, deducts income tax and employee National Insurance, and often processes employer’s NI (~13.8% above £9,100 in our teaching stack) as a cost against your contract value. You also typically pay an umbrella margin (often roughly £20–£40/week; model mentally as ~£25/week when sanity-checking quotes) and may see holiday pay expressed as 12.07% rolled up or shown separately. You are an employee for tax purposes, so expense rules are tight compared with a trading company.
What is a Ltd / PSC structure for contractors?
A limited company (often called a PSC in contracting) is a separate legal entity. The usual outside-IR35 pattern is: your company invoices the client, pays corporation tax on taxable profits (19% on profits up to £50,000, 25% above £250,000 with marginal relief between—teaching bands only), runs a small director salary (often around the personal allowance / £12,570 for NI efficiency), and extracts remaining profits as dividends taxed at 8.75% (basic) / 33.75% (higher) in 2025/26 terms. Real PSC costs include accountancy (~£1,500/year as a planning default) and employer NIC on director salary above secondary thresholds when you pay PAYE from the company.
IR35 — the rule that changes everything
IR35 determines whether your engagement is taxed like employment (inside) or whether your company can trade more like a normal business (outside). This page cannot determine status for your contract.
Inside IR35: umbrella usually wins
Inside IR35, net pay is often close to PAYE because tax and NIC are applied on a deeming basis; an umbrella can be simpler than running a Ltd company that cannot access the classic outside-IR35 dividend extraction you are trying to model. You may save £1,500+ in annual accountancy and avoid Companies House admin—while paying broadly similar headline tax.
Outside IR35: Ltd/PSC usually wins
Outside IR35, a Ltd company can retain profits and pay corporation tax, then extract via salary + dividends. In many markets this lands ~£3,000–£8,000/year ahead of umbrella-style PAYE on similar contract economics—but only if your expenses, dividend split, and IR35 posture are genuinely aligned. The interactive columns here are a simplified teaching baseline, not a personalised dividend optimiser.
The hidden costs of umbrella companies
Beyond headline tax, umbrellas often carry: a weekly margin, employer NIC loaded into the assignment rate, holiday accrual (12.07%) that is not “extra money” unless you truly take the time paid out, and limited expense flexibility compared with a trading company (subject to rules). Clients may quote a day rate that looks large until those loaded costs are unpacked.
Three day rate examples
Illustrative only—assume ~220 paid days/year and round numbers:
- £300/day (~£66k gross): umbrella economics often behave like PAYE on a loaded contract value; employer NI and margin bite before you model income tax. Outside IR35, a PSC may still show a lead after CT + divis, but IR35 posture dominates.
- £500/day (~£110k gross): the 40% band and higher employee NI tail matter for umbrella-style PAYE; PSC modelling must honestly include corporation tax, dividend tax, and accountancy.
- £800/day (~£176k gross): additional-rate and anti-avoidance realities creep in—treat any “headline win” as a prompt to get FCCA/ACA advice, not a conclusion from a web toy.
When umbrella is smarter
Choose umbrella when you want zero company admin, short inside-IR35 spells, or when the accountancy + risk of a Ltd company does not pay back at your rate and utilisation. It is also simpler when you hop contracts frequently and do not want a balance sheet life.
When Ltd company is smarter
Ltd can make sense outside IR35 when you have sustainable contract margins, legitimate business spending, and tolerance for Companies House + payroll + dividends. It is a poor fit if you are effectively inside IR35 but trying to keep a “dividend story” alive—HMRC disputes are costly.
Disclaimer
Indicative only — not tax or legal advice. IR35 status must be determined for each contract individually.
FAQ
An umbrella company employs you as a PAYE worker — it handles tax, NI, and payroll but takes a margin (£20–40/week) and you lose expense flexibility. A Ltd company (PSC) makes you a director: you pay corporation tax on profits, then extract via salary + dividends. Ltd is typically £3,000–£8,000/year better take-home outside IR35, but adds accountancy cost and admin.
Inside IR35: umbrella wins — you pay roughly the same tax but avoid £1,500+/year accountancy fees with zero admin. Outside IR35: Ltd company wins — dividend extraction saves meaningful tax versus umbrella PAYE. The key question is your IR35 status, not personal preference.
Your umbrella take-home = day rate × days worked, minus employer NI (13.8%), minus umbrella margin (£20–40/week), minus employee NI (8%/2%), minus income tax. The calculator above does this automatically — enter your day rate and expected days to see your net.
An umbrella day rate calculator converts your gross contract day rate into estimated net take-home after all deductions: employer NI, umbrella margin, employee NI, and income tax. It differs from a PAYE calculator because umbrella fees and employer NI come out of your rate before income tax is applied.