Money Tools UKMoneyToolsUK
Can I use a limited company inside IR35? UK 2025/26 contractor guide explaining limited company, PAYE, umbrella companies, deemed employment, dividends, Corporation Tax and tax treatment
Contractor Finance

Can I Use a Limited Company Inside IR35? (2025/26)

Many contractors assume that being Inside IR35 automatically means they cannot use their limited company. The truth is more nuanced. You can usually keep and even use a limited company for an Inside IR35 contract, but the tax treatment of that contract normally removes many of the benefits that make limited company contracting attractive in the first place. This guide explains what actually changes when a contract is Inside IR35 in the 2025/26 tax year — what happens to salary, dividends, Corporation Tax, expenses and pensions, when an umbrella company may be simpler, when keeping your company still makes sense, and how mixed inside and outside IR35 contracts work.

Estimated reading time: 14 minutes

By Money Tools UKLast updated 14 min read
Contractor FinanceUK tax year 2025/26

Can you keep the company?

Usually yes

How is it taxed?

Like employment

Often simpler

Umbrella

Inside IR35 does not automatically close your company. It changes how that contract's income is taxed — and usually removes most of the limited company tax advantages for that engagement.

Many contractors assume that being Inside IR35 automatically means they cannot use their limited company. The truth is more nuanced. A contractor may still be able to keep and use a limited company, but the tax treatment of an Inside IR35 contract usually removes many of the benefits that make limited company contracting attractive.

The short version: yes, you can usually keep a limited company if a contract is Inside IR35, but the income from that specific contract is normally taxed broadly like employment income. In many cases an umbrella company may be simpler, but keeping the company may still make sense if you also have Outside IR35 work, plan to take future Outside IR35 contracts, or want to maintain the business.

This guide explains what really changes when a contract falls Inside IR35 in the 2025/26 tax year, what happens to salary, dividends, Corporation Tax, expenses and pensions, and how to decide between keeping your company and switching to an umbrella.

The quick answer

You can usually keep your limited company if one contract is Inside IR35. However, the income from that contract will normally be treated as a deemed employment payment for tax purposes. That means PAYE Income Tax and National Insurance are applied before the money reaches the company or the contractor.

Key point

Inside IR35 does not automatically close your company. It changes how that contract income is taxed — and usually removes the salary, dividend and expense flexibility that makes a limited company attractive.

What does Inside IR35 mean?

Inside IR35 means the working relationship looks more like employment than genuine independent business-to-business contracting for tax purposes. In other words, if you stripped away the limited company or agency, you would look and behave like an employee of the end client.

Status is judged on the real working arrangement, not just the words in the contract. The main factors are:

  • Control — how much the client dictates what you do, how, when and where.
  • Substitution — whether you can genuinely send a qualified substitute in your place.
  • Mutuality of obligation — whether the client must offer work and you must accept it.
  • Working practices — whether you operate like an in-house employee (fixed hours, line management, company equipment).
  • Client responsibility — for many engagements the end client (or fee-payer) is responsible for deciding your IR35 status.

For a full comparison of the two positions, read Inside IR35 vs Outside IR35.

Can you legally use a limited company inside IR35?

Yes — but the tax advantage is usually reduced or removed for that contract. There is no rule that forces you to close your limited company just because an engagement is Inside IR35.

The limited company may still exist, invoice and receive funds in some circumstances, but the fee-payer (usually the agency or client) may deduct PAYE Income Tax and National Insurance before the money reaches your company, depending on the arrangement. Once tax has already been applied to that deemed employment payment, there is little scope to take the same income again as dividends or to shelter it through normal company planning.

What GOV.UK says

The off-payroll working rules are designed to make sure workers who would be employees if engaged directly pay broadly the same Income Tax and National Insurance as employees — regardless of whether they work through a limited company.

What actually changes when a contract is Inside IR35?

The mechanics of how money flows change significantly. Outside IR35, your company controls the income. Inside IR35, tax is applied at source before you have the same planning options.

Outside IR35 (limited company)

Client Pays Company
Business Expenses
Corporation Tax
Salary + Dividends
Take-Home Pay
Outside IR35, the company controls the income and profits can be extracted through a tax-efficient mix of salary, dividends, pension contributions and allowable expenses.

Inside IR35 (deemed employment)

Client / Agency / Fee-payer
PAYE Income Tax & Employee NI
Deemed Employment Payment
Employment-like Net Income
Inside IR35, the fee-payer applies PAYE treatment first. The contractor receives employment-like taxed income and the usual limited company tax planning benefits are reduced.

Why the tax benefits are reduced

The main benefit of a limited company is flexibility. Outside IR35, a genuine contractor business can usually blend several levers to manage tax efficiently:

  • Salary
  • Dividends
  • Company expenses
  • Pension contributions
  • Retained profits

Inside IR35 restricts this because the relevant contract income is treated as employment-like income. Once PAYE has been applied at source, the money is no longer ordinary company profit that you can freely plan around — which is why an Inside IR35 limited company often produces a take-home figure close to an umbrella.

Key takeaway

Inside IR35, the tax levers that make a limited company efficient are largely switched off for that contract. The structure still exists — but the tax advantage for that engagement mostly disappears.

What happens to salary and dividends?

Outside IR35, contractors often take a low salary plus dividends to reduce National Insurance and use lower dividend tax rates. See Best Salary and Dividend Split for UK Contractors for how this works in practice.

Inside IR35, the relevant contract income is not normally treated the same way. The income is taxed through PAYE as a deemed employment payment, so you cannot simply take that Inside IR35 income out as dividends to avoid PAYE.

Do not take Inside IR35 income as dividends

Do not treat Inside IR35 contract income as ordinary company profit or extract it as dividends without proper advice. The income has usually already been taxed under PAYE, and mishandling it can lead to double taxation or HMRC problems.

What happens to Corporation Tax?

If PAYE has already been applied to the deemed employment payment, the Corporation Tax treatment of that income may differ from normal Outside IR35 company income. The point of the rules is to avoid the same income being taxed twice, so amounts already taxed under PAYE are generally not taxed again as company profit.

However, the detail depends on how the payment is routed, whether the fee-payer or your company operates PAYE, and how the funds are recorded in the company accounts.

Get this checked

This is an area where accountant advice is genuinely important. The interaction between deemed employment payments, PAYE and Corporation Tax is technical, and getting the treatment wrong can be costly.

What happens to expenses?

Inside IR35 usually restricts the usefulness of many company expense claims for that contract. The broad expense flexibility that makes an Outside IR35 limited company attractive is largely lost.

Outside IR35

A wider range of genuine business expenses may be relevant and can reduce taxable profit.

Inside IR35

Many expenses may not reduce your take-home in the same way, and ordinary commuting is generally not claimable.

For a full breakdown of what is and is not allowable, read What Expenses Can Contractors Claim?

What happens to pensions?

Pensions may still be useful Inside IR35, especially employer pension contributions or salary sacrifice, depending on the payment route. Pension contributions can reduce taxable income and remain one of the few efficient planning tools that often survives an Inside IR35 arrangement.

To understand how pension sacrifice cuts Income Tax and National Insurance, and how it affects thresholds, read Salary Sacrifice Explained and Adjusted Net Income Explained.

Umbrella company vs limited company inside IR35

When a contract is Inside IR35, the practical difference between running it through your limited company and using an umbrella company is often small on take-home — but very different on admin and simplicity.

Limited company inside IR35 vs umbrella company comparison for the 2025/26 UK tax year
FeatureLimited Company Inside IR35Umbrella CompanyRecommendation
AdminHigher — accounts, filings, payrollLow — handled for you🟠Umbrella simpler
Tax flexibilityVery limited for the Inside IR35 contractNone — pure PAYE🟠Little difference
PAYE deductionsApplied to the deemed employment paymentApplied to the assignment rate🟠Broadly similar
ExpensesMostly restricted for that contractVery limited🟠Both restricted
Accountancy costsOngoing fees still applyUsually none🟠Umbrella cheaper
Best for mixed contractsYes — keeps the company availableNo — one engagement at a time🟢Keep the company
Best for a simple Inside IR35 roleRarely worth itUsually simplest🟠Use umbrella
Take-home clarityCan be complex to reconcileClear PAYE payslip🟠Umbrella clearer

🟢 Better choice🟠 Depends / little difference🔴 Usually not recommended

For the full structure comparison, see Umbrella Company vs Limited Company and How Much Does an Umbrella Company Actually Cost?

Compare umbrella vs limited company take-home

Run your day rate through the Contractor Tax Calculator to see the real take-home difference between an umbrella company and a limited company inside IR35.

Open Contractor Tax Calculator

When keeping your limited company may still make sense

Keeping your company running may still be worthwhile if:

  • You have Outside IR35 contracts too
  • You expect future Outside IR35 work
  • You have retained profits in the company
  • You have ongoing business expenses
  • You want to keep the company active and trading
  • You have multiple clients
  • You want pension planning flexibility

When an umbrella company may be simpler

An umbrella company may be the simpler option if:

  • All your current contracts are Inside IR35
  • No Outside IR35 work is expected
  • You want minimal admin
  • The agency or client prefers umbrella payroll
  • Accountancy costs outweigh the company's benefits
  • You want straightforward PAYE payslips

To understand every deduction on an umbrella payslip, read How Umbrella Company Take-Home Pay Really Works.

Why do agencies often encourage contractors to use umbrella companies?

When a contract is Inside IR35, many recruitment agencies actively steer contractors towards an umbrella company rather than paying a personal service company. This is usually about reducing their own risk and admin rather than maximising your take-home pay. The main reasons are:

  • Payroll simplicity — the umbrella runs PAYE, so the agency pays a single compliant supplier instead of operating deemed-payment payroll itself.
  • Compliance — using an established umbrella keeps the agency comfortable that Income Tax and NI are deducted correctly at source.
  • Reduced administration — timesheets, payslips, holiday pay and statutory payments are all handled by the umbrella.
  • Reduced IR35 risk — with PAYE applied to the assignment rate, there is little residual off-payroll exposure for the agency or client.
  • Quicker onboarding — umbrella payroll can usually be set up in a day or two, so you can start faster.

Agency preference is not tax advice

An agency preferring umbrella payroll is convenient for them, but it does not automatically make it the best financial choice for you. Always compare the numbers for your own situation before agreeing.

Who is the fee-payer?

The fee-payer is the organisation responsible for deducting Income Tax and National Insurance before paying an Inside IR35 contractor. In plain English, it is whoever sits directly above you in the contractual chain and pays your limited company (or umbrella).

Under the off-payroll rules, the end client decides your IR35 status, but the fee-payer is the party that actually operates PAYE on the deemed employment payment. This is usually the recruitment agency, or the end client if there is no agency in the chain.

Practical example — who deducts the tax?

You work through Your Ltd for a bank, placed by a recruitment agency. The bank (end client) assesses the role as Inside IR35. The agency pays your company, so the agency is the fee-payer. Before the money reaches Your Ltd, the agency deducts Income Tax and Employee NI and pays those to HMRC. Your company receives the net amount as a deemed employment payment.

If there were no agency and the bank paid you directly, the bank would be the fee-payer instead.

Mixed contracts: Inside IR35 and Outside IR35

This is important: a contractor can have one contract Inside IR35 and another Outside IR35 at the same time. IR35 status is assessed per engagement, not permanently attached to the contractor.

Quick example — Contractor A

  • Contract 1: Inside IR35, paid via an umbrella company on PAYE.
  • Contract 2: Outside IR35, invoiced through the limited company with salary, dividends and expenses.

Here the limited company is still genuinely useful — it handles the Outside IR35 work efficiently, while the Inside IR35 engagement runs cleanly through the umbrella. Closing the company would remove a working structure that is still earning.

Example: Inside IR35 through a limited company

These figures are illustrative only.

  • Day rate: £500/day
  • Billed days: ~220
  • Contract value: ~£110,000

Because the contract is Inside IR35, PAYE treatment may apply to the deemed employment payment before funds are available for normal salary or dividend planning. In practice the take-home lands close to an equivalent umbrella outcome, but you still carry company admin, filings and accountancy costs. For many contractors, that extra effort is not rewarded unless the company is also used for Outside IR35 work.

Example: Inside IR35 through an umbrella company

Using the same £500/day example, the umbrella route runs like this:

Umbrella Route (Inside IR35)

Assignment Rate (~£110,000)
Employer's National Insurance
Apprenticeship Levy
Umbrella Margin
Taxable Gross Pay
PAYE Income Tax & Employee NI
Take-Home Pay
On roughly £110,000 of assignment value, take-home is commonly in the region of 58–62% once employer costs, the umbrella margin and PAYE deductions are applied. Figures are illustrative and depend on your tax code, pension and student loan.

For a deeper breakdown of these numbers, see How Much Does an Umbrella Company Actually Cost? and Is a £500/Day Contract Worth It After Tax?

Put your own numbers in

These worked examples are illustrative. Enter your day rate to see your personal Inside IR35 and umbrella take-home pay side by side.

Open Contractor Tax Calculator

Decision guide

You may keep your limited company if:

  • You have Outside IR35 work
  • You expect future Outside IR35 work
  • The company has retained funds
  • Your accountant confirms it still makes sense

Umbrella may be simpler if:

  • All your work is Inside IR35
  • You want PAYE simplicity
  • Company admin is no longer worthwhile

Red flags and common mistakes

  • Assuming Inside IR35 means the company must close
  • Taking Inside IR35 income as dividends without advice
  • Ignoring ongoing accountancy costs
  • Not comparing umbrella take-home pay
  • Not checking the Key Information Document
  • Treating all contracts as having the same IR35 status
  • Closing the company too quickly
  • Ignoring retained profits and future plans

What should I do next?

If a contract has been assessed as Inside IR35, work through this short checklist before deciding whether to keep your limited company or move to an umbrella.

Your next-steps checklist

  • Check your IR35 status for each current and upcoming contract
  • Compare umbrella vs limited company take-home for the same rate
  • Review your ongoing accountancy and company running costs
  • Consider your future contracts and likely IR35 status
  • Decide whether to keep, pause or close your limited company
  • Speak to a qualified accountant if you are unsure

Work out your contractor take-home pay

Use the Money Tools UK Contractor Tax Calculator to compare limited company, umbrella and Inside IR35 outcomes before deciding what structure makes sense.

Open Contractor Tax Calculator

These guides explain how IR35 status, umbrella companies and limited company tax planning fit together.

Sources & references

This guide reflects official UK government and HMRC guidance on off-payroll working (IR35), employment status, umbrella companies, Corporation Tax, PAYE and National Insurance for the 2025/26 tax year.

Last updated

This article was last reviewed on 5 July 2026 and reflects UK contractor tax, off-payroll working (IR35), umbrella company, Corporation Tax and PAYE rules for the 2025/26 tax year. We refresh this guide each time HMRC publishes a material change.

Reviewed by Money Tools UK Editorial Team

This guide was reviewed for accuracy against HMRC and GOV.UK off-payroll working guidance for the 2025/26 tax year. We regularly update our contractor and tax content when thresholds, rates or status rules change.

Last reviewed: 5 July 2026

Disclaimer

Money Tools UK provides educational information and calculators only. This article is not tax, accounting, legal, employment or financial advice. Contractor tax treatment depends on contract terms, working practices, fee-payer responsibilities, company structure, expenses, pension arrangements and personal circumstances. Speak to a qualified accountant or tax adviser before making decisions.

Get new UK finance and property guides from Money Tools UK

Plain-English UK finance insights, tax updates and property investing guides.

Browse calculators

Related calculators

Contractor Tax Calculator

The exact calculator this article is built around — open it and run your own numbers.

Open calculator

Frequently asked questions

Disclaimer: This content is for informational purposes only and should not be treated as financial, tax, mortgage, investment or legal advice.