The IR35 rules for contractors are unchanged in 2026. The off-payroll working rules that took effect on 6 April 2021 still apply exactly as written, according to GOV.UK guidance verified on 19 September 2026. The phrase “IR35 reforms 2026” describes the tax landscape around the rules, not new legislation: dividend tax rates rose on 6 April 2026, the duty to repay student loans through Self Assessment was confirmed as the worker’s, and the Treasury ruled out a review of the off-payroll legislation in June 2026.
This guide covers the rules as they stand, who decides status, the three 2026 changes around the rules, and the practical difference between inside and outside IR35.
What Are the IR35 Rules in 2026?
IR35, formally the off-payroll working rules, requires a worker who provides services through their own intermediary to pay broadly the same Income Tax and National Insurance as an employee, wherever a direct engagement would have been employment. The intermediary is usually a limited company, known as a personal service company (PSC). HMRC operates the rules to close the gap between an employee’s deductions and a contractor’s company dividends, and the rules sit at the centre of the contractor tax rules UK freelancers work under.
The rules apply on a contract-by-contract basis. A contractor holding 3 engagements in April 2026 holds 3 separate status positions, each tested on its own terms and working practices.
The legislative position in 2026 is fixed. The reformed regime dates from 6 April 2021 for medium and large private sector clients, and from 2017 for the public sector (from GOV.UK, verified 19 September 2026). No section of those rules changed in 2026.
Working through an umbrella company places a contractor outside this framework in most cases, because the umbrella company is the employer and operates PAYE on its payroll. The off-payroll rules are unlikely to apply to umbrella engagements.
Who Decides a Contractor’s IR35 Status?
In most cases, the client decides a contractor’s IR35 status, not the contractor, the agency or HMRC. Which client holds the duty depends on size. A private or voluntary sector client is medium or large when it meets 2 or more of these conditions:
- Turnover above £10.2 million a year
- Balance sheet total above £5.1 million
- Workforce above 50 employees
A group is measured on the parent company’s size. A client without Companies House registration, such as an unincorporated association, faces a simplified test: annual turnover above £10.2 million alone. These are the off-payroll size tests, and they sit apart from the Companies Act accounting thresholds that changed in April 2025. A company can qualify as small for accounting filings and large for off-payroll purposes on the same day, so a client that grew past 2 conditions during 2025-26 issues status decisions for the first time in 2026. A client meeting fewer than 2 conditions is small.
Where the client determines status, it must issue a Status Determination Statement (SDS): a written conclusion with reasons. The client must also operate a process for the worker’s disagreement, so a contractor disputing the conclusion holds a formal route to challenge it. Contractors can cross-check a client’s conclusion using HMRC’s CEST tool, the Check Employment Status for Tax service, before accepting or disputing an SDS.
For a small client outside the public sector, the position reverses. The worker’s own intermediary decides whether the rules apply, and the client must confirm its size when asked. Determining your own status carries the compliance risk a large client would otherwise hold, which is why contractors across the region engage specialist support such as our contractor accountants in Newcastle to test each engagement against the rules.
What Changed Around IR35 in April 2026?
The off-payroll working rules did not change in April 2026 — three things around them did. Contractors searching for IR35 changes April 2026 found fiscal updates, not new legislation.
Dividend tax rose on 6 April 2026. The dividend allowance sits at £500, and every rate above it increased, raising the personal tax cost of the salary-and-dividend mix that funds an outside-IR35 income. The table below sets out the 2026-27 dividend tax rates by income band.
| Dividend band | Rate from 6 April 2026 |
|---|---|
| Basic rate | 10.75% |
| Higher rate | 35.75% |
| Additional rate | 39.35% |
An outside-IR35 extraction strategy therefore costs more in personal tax from 2026-27, which shifts the arithmetic in contract rate negotiations (from GOV.UK, verified 19 September 2026).
Student loan repayments moved to the worker. GOV.UK’s February 2026 update to the off-payroll guidance confirmed that deemed employers do not deduct student or postgraduate loan repayments from off-payroll fees. A worker inside the rules must register for Self Assessment and report loan repayments there, adding a filing duty that previously sat with a PAYE employer. Our tax returns and taxation services cover that registration and the annual return.
The Treasury closed the door on a review. A June 2026 Treasury statement ruled out a review of the off-payroll legislation. The 2021 rules are the operative framework for the foreseeable future, so contractors planning around a repeal hold no basis in current policy.
What Happens If IR35 Is Applied to a Contract?
If a contract falls inside IR35, the deemed employer deducts Income Tax and employee National Insurance from the fees it pays to the worker’s intermediary. The deemed employer is the client or the agency, whichever pays the PSC. It also pays employer National Insurance and, where applicable, the Apprenticeship Levy on the same fees (from GOV.UK, verified 19 September 2026).
The table below sets out the deductions and the company duties for inside and outside IR35 positions.
| Position | Deductions on fees | Company duties |
|---|---|---|
| Inside IR35 | Deemed employer deducts Income Tax and employee NI; pays employer NI and Apprenticeship Levy | Annual accounts and Corporation Tax still due |
| Outside IR35 | No employment deductions | Corporation Tax on profits; annual accounts filing |
An inside determination typically reduces the contractor’s take-home while the working pattern continues unchanged, because employment deductions apply before the fee reaches the company. An outside determination keeps fees gross: the company pays Corporation Tax on its profits, and the contractor draws a salary and dividends taxed at the 2026-27 dividend rates above.
The PSC keeps company duties in both positions. Annual accounts filing and Corporation Tax apply to a personal service company whether its engagements sit inside or outside the rules, a compliance load our company accounts services handle year-round.
One warning applies across both positions. Tax avoidance schemes claiming to bypass the off-payroll rules circulate each spring, and HMRC publishes guidance on recognising them. Contractors who join such schemes face enquiries and settled tax bills, not savings.
Common Questions Answered
Have the IR35 rules changed in 2026?
No. The off-payroll working rules that took effect on 6 April 2021 still apply unchanged in 2026 (from GOV.UK, verified 19 September 2026). The February 2026 GOV.UK update clarified one point only: deemed employers do not deduct student or postgraduate loan repayments from off-payroll fees, and the worker repays through Self Assessment. The landscape changed instead — dividend tax rates rose on 6 April 2026, raising the cost of an outside-IR35 income.
Who is responsible for determining IR35 status?
Medium and large private sector clients, and public sector clients, determine IR35 status. A medium or large client meets 2 or more of these conditions: turnover above £10.2 million, balance sheet total above £5.1 million, more than 50 employees. For a small client outside the public sector, the worker’s own intermediary, the PSC, decides whether the rules apply.
What is a Status Determination Statement?
A Status Determination Statement is a written statement from the client giving its IR35 determination and the reasons behind it. The client must run a process to handle the worker’s disagreement, giving a contractor who disputes the conclusion a formal channel for challenge.
Do the off-payroll rules apply per contract or per person?
Per contract. A contractor can hold one engagement inside IR35 and another outside IR35 at the same time. For these rules, a contract is a written, verbal or implied agreement.
How Aqua Accounting Can Help
Aqua Accounting supports contractors with IR35 position reviews, company compliance and Self Assessment filing. Our ICAEW Chartered Accountants operate as an ICAEW Registered Member Firm, with a UK-based team in Newcastle upon Tyne and more than 13 years serving North East businesses. We review SDS documents, cross-check determinations against the CEST tool, prepare annual accounts and Corporation Tax returns for PSCs inside or outside the rules, and file Self Assessment returns covering the 2026 dividend rates and student loan repayments.
The IR35 rules for contractors in 2026 are the 2021 rules, unchanged; the tax around them is not. Contact our contractor team to review your engagements, your SDS paperwork and your take-home position before your next contract starts.
Disclaimer:
The information provided in this blog is for general informational purposes only and does not constitute professional advice. While every effort is made to ensure accuracy, Aqua Accounting accepts no responsibility for any actions taken based on this content. You should seek professional advice tailored to your individual circumstances.
Omar Ahmed is an ICAEW Chartered Accountant and the Director of Aqua Accounting, a UK-based accountancy practice providing expert accounting and tax services to individuals, sole traders, and small to medium-sized businesses. As a trusted accountant in Newcastle, he offers expertise in annual accounts, self-assessment tax returns, company accounts, VAT, payroll, bookkeeping, and company formation.
With a strong focus on delivering clear and practical financial advice, Omar helps clients stay compliant while improving their understanding of their finances. Through Aqua Accounting, he works closely with business owners to simplify accounting processes, meet tax obligations, and support informed financial decision-making.