At £500/day (220 days, £110,000/year revenue), a limited company contractor takes home £5,829/month — £358/month (£4,296/year) more than umbrella. This is the highest day rate where the Ltd model works cleanly without personal allowance taper concerns — making £500/day potentially the sweet spot for Ltd company contractors.
Take-Home Comparison — £500/Day
| Ltd Company | Umbrella | PAYE | |
|---|---|---|---|
| Annual revenue | £110,000 | £110,000 | £110,000 |
| Gross personal income | £12,570 salary + £72,321 dividends | £95,000 salary | £96,304 salary |
| Income tax | £0 salary; £14,940 dividend tax | £25,432 | £25,954 |
| National Insurance | £0 (employee) | £3,911 | £3,937 |
| Monthly take-home | £5,829 | £5,471 | £5,534 |
| Annual take-home | £69,951 | £65,657 | £66,413 |
Ltd Company Calculation (Outside IR35)
Annual revenue: £110,000
- Director salary: −£12,570
- Employer NI: −£1,136
- Ltd expenses: −£3,000
- Taxable profit: £93,294
Corporation tax (marginal relief): CT = 25% × £93,294 − (£250,000 − £93,294) × 3/200 = £23,324 − £2,351 = £20,973 (effective rate: ~22.5%)
Profit after CT: £72,321
Personal income check: £12,570 + £72,321 = £84,891 — below £100,000 PA taper threshold. ✓
Dividends:
- £500 at 0% = £0
- £37,200 at 8.75% = £3,255
- £34,621 (above £50,270 total income) at 33.75% = £11,685
- Total dividend tax: £14,940
Take-home: £12,570 + £72,321 − £14,940 = £69,951/year = £5,829/month
Umbrella Company Calculation (Inside IR35)
Revenue after umbrella margin: £108,500 Gross salary: (£108,500 + £750) ÷ 1.15 = £95,000
| Earnings | Rate | Tax |
|---|---|---|
| £12,571–£50,270 | 20% | £7,540 |
| £50,271–£95,000 | 40% | £17,892 |
| Total income tax | £25,432 |
Employee NI: (£37,700 × 8%) + (£44,730 × 2%) = £3,016 + £895 = £3,911
Take-home: £95,000 − £25,432 − £3,911 = £65,657/year = £5,471/month
PAYE Calculation
Gross salary: (£110,000 + £750) ÷ 1.15 = £96,304
- Income tax: £25,954
- Employee NI: £3,937
- Take-home: £66,413/year = £5,534/month
The £500/Day Sweet Spot
At £500/day:
- Personal income (£84,891) stays well below the PA taper (£100,000) — no taper complexity
- Corporation tax effective rate (~22.5%) — manageable marginal relief
- Ltd advantage (£4,296/year) — significant even after accountancy fees
- No IR35 complexity from income size — IR35 determination remains contract-specific
Above £500/day, you need active income management (pension contributions) to keep personal income below £100,000. Below £500/day, you can draw all post-CT profit as dividends without taper concern. This makes £500/day the last truly “set and forget” rate for the basic Ltd model.
Pension Strategy at £500/Day
At £500/day, £34,621 of dividends sit in the higher rate band (33.75%). Two efficient strategies:
Option A — Eliminate higher rate dividends: Contribute £34,621/year (£2,885/month) into a company pension. Saves £8,655 in dividend tax plus ~£7,791 in CT. Net cost: £18,175 for £34,621 pension saving.
Option B — Balance take-home and pension: Contribute £15,000/year. Reduces dividends by £15,000 (saving £3,750 in higher rate tax). Saves ~£3,375 CT. Net pension cost: £7,875/year for £15,000 saving. Monthly take-home: ~£5,519 vs £5,829 without pension.
| Pension/year | Monthly take-home | Pension saving | Net pension cost |
|---|---|---|---|
| £0 | £5,829 | — | — |
| £15,000 | £5,519 | £15,000 | £7,875 |
| £34,621 | £4,985 | £34,621 | £18,175 |
Worked Example — Claire, Head of Programme Management
Claire contracts at £500/day (outside IR35) as head of programme management for a FTSE 100 technology transformation. Annual revenue: £110,000.
Company accounts:
- Revenue: £110,000
- Salary + employer NI: £13,706
- Expenses: £3,000
- Company pension: £20,000
- Pre-CT profit: £73,294
- CT (effective ~21.6%): £15,811
- Available for dividends: £57,483
Claire’s income:
- Salary: £12,570
- Dividends: £57,483 (higher rate exposure: £19,783 at 33.75% = £6,677; total div tax: £9,932)
- Monthly take-home: £4,927
- Company pension: £20,000/year accumulating
Without pension, take-home = £5,829/month. With £20,000 pension, she gives up £902/month but saves £20,000 at an effective net cost of £11,686 — outstanding pension efficiency.