Higher take-home
£40,268.20
Sole trader (Self Assessment)
United Kingdom · 2026 · contractors
Sole trader vs PAYE
Same £50,000 profit/gross — sole trader take-home £40,268.20 vs PAYE £39,519.60 (≈ £748.60 gap). Income Tax matches; Class 4 vs Class 1 NI and payment timing differ.
By Sammy S. · Founder · AuthorUpdated for 2026
Take-home gap
£748.60
Sole trader ahead of PAYE on £50k
NI gap
£748.60
Class 4 £2,245.80 vs Class 1 £2,994.40
Key finding — sole trader ≈ £748.60 more take-home on £50k
On £50,000 (2026/27 rUK), a sole trader models about £40,268.20 take-home vs £39,519.60 under PAYE (≈ £748.60 more for the sole trader). Income Tax is the same (£7,486.00); Class 4 NI is £2,245.80 vs Class 1 £2,994.40.
Paycheck Tax Calculator sole trader vs PAYE 2026. Updated 2026-08-10. Vignette: £50,000 profit/gross · rUK Income Tax · 2026/27 · no student loan/pension · sole trader Class 2/4 vs PAYE Class 1.
Key takeaways
- On £50,000, sole trader take-home ≈ £40,268.20; PAYE ≈ £39,519.60 (gap ≈ £748.60).
- Income Tax matches at £7,486.00 — the gap is National Insurance (≈ £748.60).
- Class 4 main rate 6% vs Class 1 employee main rate 8% (GOV.UK 2026/27).
- Sole-trader payments on account estimate ≈ £4,865.90 each (31 Jan / 31 Jul) when POA apply.
- PAYE usually withholds tax and NI each payday — cash-flow timing differs even when annual tax is similar.
- Personalize in the Self Assessment and UK PAYE calculators.
Why contractors compare sole trader vs PAYE
Contractors often weigh sole-trader Self Assessment against PAYE employment (or umbrella PAYE). On the same £50,000 figure, Income Tax matches — National Insurance and when you pay do not.
This hub locks both paths to tax year 2026/27 rUK engines already used on the Self Assessment and UK calculators.
How to read this hub
Headline vignette: £50,000 sole-trader profit vs the same amount as PAYE gross. No student loan, pension, or Scottish bands.
Sole trader take-home ≈ £40,268.20; PAYE ≈ £39,519.60 (gap ≈ £748.60).
Rankings sort by take-home descending — highest take-home first under these assumptions.
National Insurance — Class 1 vs Class 4
Employees (Category A): 8% between £12,570 and £50,270, then 2% (GOV.UK NI rates and categories).
Sole traders: Class 4 at 6% between £12,570 and £50,270, then 2%. Class 2 is treated as paid at profits ≥ £7,105 (GOV.UK self-employed NI rates).
On £50k: Class 1 ≈ £2,994.40; Class 4 ≈ £2,245.80.
Payment timing — payday vs payments on account
PAYE spreads Income Tax and Class 1 across the year through payroll deductions.
GOV.UK: payments on account are each half of last year’s tax (including Class 4 if self-employed), due by midnight on 31 January and 31 July — unless last year’s bill was under £1,000 or more than 80% was collected outside Self Assessment.
Planning estimate from this year’s £50k sole-trader figures: about £4,865.90 per instalment when POA apply (confirm with HMRC).
What this hub excludes
IR35 / off-payroll status, umbrella fees, limited company corporation tax and dividends, allowable expenses, trading allowance, student loans, pensions, Scottish Income Tax, and employer Class 1 NI.
Use the linked calculators for custom profit, expenses, and PAYE options.
Official rules this hub follows
Summarised from GOV.UK. Maths use the same Self Assessment and UK PAYE engines as the live calculators.
Self-employed Class 4 NI (2026/27)
- Class 2 treated as paid at profits ≥ £7,105
- Class 4 6% on profits over £12,570 up to £50,270
- Class 4 2% on profits over £50,270
- Voluntary Class 2 £3.65/week if profits are below the small profits threshold
Employee Class 1 NI (2026/27)
- Category A: 0% to primary threshold, then 8% to UEL, then 2%
- Annual primary threshold £12,570; UEL £50,270
- Employer NI is separate and not deducted from employee take-home on this hub
Payments on account
- Each instalment is usually half of last year’s tax (including Class 4)
- Due by midnight on 31 January and 31 July
- Not required if last year’s bill was less than £1,000
- Also not required if more than 80% of last year’s tax was paid outside Self Assessment
Income Tax (rUK)
- Personal Allowance £12,570 for 2026/27
- Same rUK band schedule applies to PAYE employment and sole-trader trading profit on this hub
£50,000 take-home by path
Ranked by take-home descending. Highest: Sole trader (Self Assessment) · lowest: PAYE employee.
| # | Path | Take-home | Effective |
|---|---|---|---|
| 1 | Sole trader (Self Assessment)SA | £40,268.20 | 19.46% |
| 2 | PAYE employeePAYE | £39,519.60 | 20.96% |
Path profiles
Headline corridor
Compare the two paths
Compare sole trader vs PAYE
Same £50,000 profit/gross — NI + payment timing.
Profit / salary ladder
Equal profit = PAYE gross at each rung. Amounts: £20,000 · £30,000 · £40,000 · £50,000 · £60,000 · £80,000 · £100,000.
| Profit / gross | Sole trader | PAYE | Gap |
|---|---|---|---|
| £20,000 | £18,068.20 | £17,919.60 | £148.60 |
| £30,000 | £25,468.20 | £25,119.60 | £348.60 |
| £40,000 | £32,868.20 | £32,319.60 | £548.60 |
| £50,000 | £40,268.20 | £39,519.60 | £748.60 |
| £60,000 | £46,111.40 | £45,357.40 | £754.00 |
| £80,000 | £57,711.40 | £56,957.40 | £754.00 |
| £100,000 | £69,311.40 | £68,557.40 | £754.00 |
Worked examples (engine-locked)
£50k sole trader — headline
£40,268.20
- Income Tax £7,486.00 (rUK after Personal Allowance).
- Class 4 £2,245.80 on profits above £12,570.
- Take-home £40,268.20.
Our engine · GOV.UK Class 4 6%
£50k PAYE — headline
£39,519.60
- Income Tax £7,486.00 (same as sole trader).
- Class 1 NI £2,994.40.
- Take-home £39,519.60.
Our engine · GOV.UK Class 1 Category A 8%
£40k — NI gap check
£548.60
- Sole trader NI £1,645.80 vs PAYE NI £2,194.40.
- Take-home gap £548.60.
Take-home difference equals NI difference when Income Tax matches
Concepts
Same profit, same Income Tax
With identical rUK taxable income and no other adjustments, Income Tax matches — useful for isolating the NI effect.
NI rate wedge
8% Class 1 vs 6% Class 4 on the main band is the core annual gap on this vignette.
Cash-flow vs annual liability
PAYE withholds gradually; Self Assessment can concentrate cash outflows on 31 January / 31 July even when the annual bill is lower.
Employer NI is off-stage
Employer Class 1 is a business cost of hiring an employee — not subtracted from the PAYE take-home column here.
Myths vs facts
“Sole traders always pay more tax than employees.”
On this £50k vignette the sole trader models higher take-home (£40,268.20 vs £39,519.60) because Class 4 is lower than Class 1 employee NI — Income Tax is the same.
“Class 2 still costs £3.65/week for everyone.”
At profits ≥ £7,105, Class 2 is treated as paid (no Class 2 cash due). The £3.65/week rate is for voluntary Class 2 below that threshold (GOV.UK).
“Self Assessment means you only pay once a year.”
When payments on account apply you usually pay twice a year (31 January and 31 July), plus any balancing payment — not a single annual lump for every trader (GOV.UK).
“PAYE and Self Assessment use different Income Tax rates.”
rUK Income Tax bands are the same. This hub’s gap is National Insurance and cash-flow timing, not a different basic/higher rate schedule.
“Umbrella / IR35 inside IR35 equals sole-trader Class 4.”
Off-payroll / umbrella engagements are usually taxed like employment (PAYE + Class 1). Status rules are outside this model — check HMRC employment status guidance.
Glossary
- PAYE
- Pay As You Earn — employers usually deduct Income Tax and Class 1 NI from each payday and pay HMRC.
- Self Assessment
- How most sole traders report and pay Income Tax and Class 2/4 NI (GOV.UK Self Assessment).
- Class 1 NI
- Employee contributions from earnings — Category A 8% / 2% (GOV.UK NI rates letters, 2026/27).
- Class 4 NI
- Self-employed contributions on profits — 6% then 2% (GOV.UK self-employed NI rates).
- Class 2 NI
- Treated as paid when profits ≥ £7,105. Voluntary rate £3.65/week if profits are lower (GOV.UK).
- Payments on account
- Two instalments (31 January and 31 July), each usually half of last year’s Income Tax + Class 4 bill, when the prior bill was £1,000 or more (GOV.UK).
- Personal Allowance
- £12,570 for 2026/27 (GOV.UK Income Tax rates).
- Same profit vignette
- Sole-trader trading profit set equal to PAYE gross salary so Income Tax bands match and only NI + timing differ.
How to use this hub
- Scan the £50k scoreboard. Compare take-home, Income Tax, and NI side by side.
- Read the NI split. Class 4 6%/2% vs Class 1 8%/2% drives the annual gap.
- Check payment timing. PAYE each payday vs SA payments on account dates.
- Walk the profit ladder. See how the gap scales from £20k to £100k.
- Personalize. Run exact figures in the Self Assessment and PAYE calculators.
Who this hub helps
Contractors weighing sole trader vs PAYE
See the NI-driven take-home gap and payment-timing difference on the same £50k figure.
New sole traders
Understand Class 4 vs Class 1 and when payments on account usually apply.
Employees considering freelancing
Compare annual take-home before expenses, IR35, or limited-company planning.
Educators & advisers
Engine-locked corridors with GOV.UK NI and payments-on-account sources.
Planning notes (education, not advice)
Budget for January and July
If payments on account apply, plan cash for both dates — not only the 31 January balancing payment.
Expenses change sole-trader profit
Allowable expenses (or the £1,000 trading allowance) reduce trading profit and Class 4 — not modelled on the headline equal-profit vignette.
Status comes first
Employment status / IR35 can force PAYE treatment regardless of preferred NI class — check HMRC guidance before relying on Class 4 maths.
This is education, not advice
GOV.UK pages and this hub do not replace an accountant for contractor structuring.
What we exclude
- IR35 / off-payroll working and umbrella company fees
- Limited company corporation tax and dividends
- Allowable expenses and the £1,000 trading allowance on the headline vignette
- Student loans, pensions, Gift Aid, Scottish Income Tax
- Employer Class 1 National Insurance
- Voluntary Class 2 elections below the small profits threshold
Validation notes
- £50k Income Tax matches on both paths: £7,486.00.
- £50k Class 4 ≈ £2,245.80; Class 1 ≈ £2,994.40.
- £50k take-home: sole trader £40,268.20; PAYE £39,519.60.
- Class 4 = (profit − £12,570) × 6% while profit ≤ £50,270 (GOV.UK).
- Class 1 Category A main band 8% between PT and UEL (GOV.UK NI rates letters).
- Engines: calculateSelfAssessmentUk + calculateUKTaxDetailed (same as live calculators).
Frequently asked questions
Two paths on the same £50,000 figure for 2026/27: sole-trader Self Assessment (Class 4 NI) vs PAYE employment (Class 1 NI).
The sole trader ≈ £40,268.20 vs PAYE ≈ £39,519.60 (about £748.60 more for the sole trader on this vignette).
Not here — both use rUK Income Tax on £50,000, so Income Tax is £7,486.00 either way.
Class 4: 6% / 2%. Class 1 Category A: 8% / 2% (GOV.UK 2026/27).
Payments on account are usually due 31 January and 31 July when they apply; each is typically half of last year’s Income Tax + Class 4 (GOV.UK).
At profits ≥ £7,105, Class 2 is treated as paid. Below that you can pay voluntary Class 2 at £3.65/week (GOV.UK).
No. Employer Class 1 is excluded from the PAYE take-home column — it is an employer cost, not an employee deduction.
Excluded. Off-payroll / umbrella arrangements are usually taxed like employment. This hub is an equal-profit maths comparison only.
Self Assessment: /self-assessment-calculator/uk. PAYE: /calculator/uk. NI detail: /national-insurance-calculator/uk.
Related tools
UK Self Assessment calculator
Trading profit, expenses, Class 2/4, and payments on account estimates.
UK PAYE take-home calculator
Income Tax + Class 1 NI for employees.
UK National Insurance calculator
Employee Class 1 and self-employed Class 2/4 detail.
UK VAT rate scenarios
Standard vs reduced vs zero vs margin scheme.
Take-home by UK nation
England vs Scotland PAYE at £100k.
UK Inheritance Tax scenarios
NRB vs RNRB vs married transfer.
Australia sole trader vs employee
Cash take-home ties; Super Guarantee package gap on A$50k.
Prefer custom profit or expenses? Open the Self Assessment calculator.
By Sammy S. · Founder · AuthorUpdated for 2026