| Income tax allowances | 2003-04 (£) | Item National Insurance Contributions | 2003-04 | 
| Personal allowance | 4 615 | Lower earnings limit, primary class 1 | £77 per week | 
| Personal allowance for people aged 65-74 | 6 610 | Upper earnings limit, primary class 1 | £595 per week | 
| Personal allowance for people aged 75 and over | 6 720 | Primary threshold | £89 per week | 
| Income limit for age-related allowances | 18 300 | Secondary threshold | £89 per week | 
| Married couple’s allowance for people born before 6 April 1935 | 5 565 | Employees’ primary class 1 rate | 11% of £89.01 to £595 per week | 
| Married couple’s allowance - aged 75 or more | 5 635 | Employees’ contracted-out rebate | 1. 6% | 
| Minimum amount of married couple’s allowance | 2 150 | Married women’s reduced rate | 4.85% | 
| Children’s tax credit | 5 290 | Employers’ secondary Class 1 rate | 12.8% on earnings above £89 per week | 
| Children's tax credit - baby rate | 10 490 | Employers’ contracted-out rebate, salary-related schemes | 3.5% | 
| Blind person’s allowance | 1 480 | Employers’ contracted-out rebate, money-purchase schemes | 1.0% | 
| The rate of relief for the continuing married couple’s allowance 
 | 
 | Class 2 rate | £2.00 per week | 
| Taxable bands | 2003-04 (£) | Class 2 small earnings exception | £4,095 per year | 
| Starting rate 10% | 0 - 1 960 | Special Class 2 rate for share fishermen | £2.65 per week | 
| Basic rate 22% | 1,961 - 30,500 | Special Class 2 rate for volunteer development workers | £3.75 per week | 
| Higher rate 40% | Over 30 500 | Class 3 rate | £6.85 per week | 
| Trust | 2003-04 | Class 4 rate | 8% of £4,615 to £30,940 per year 1% above £30,940 per year | 
| Trusts | 34% | Class 4 lower profits limit | £4,615 per year | 
| Schedule F Trusts | 25% | Class 4 upper profits limit | £30,940 per year | 
| Financial year 2003-04 (£) | ||
| Starting rate zero | 0 - 10 000 | The main rate of corporation tax for 2003-04 will be 30%. | 
| Marginal relief | 10 001 - 50 000 | 
The corporation tax starting rate is reduced from 10 per cent to zero for companies with taxable profits below £10,000. | 
| Small companies’ rate 19% | 50 001 - 300 000 | 
Marginal relief eases the transition from the starting rate to the small companies' rate for companies with profits between £10,000 and £50,000. | 
| Marginal relief | 300 001 - 1 500 000 | 
The profits limits may be reduced for a company which is part of a group or has associated companies. | 
| Main rate 30% | 1 500 001 or more | |
For the Taxation Year 2003-2004 the Chancellor has announced that Employer's NIC will rise by 1%
Employees National Insurance Contributions will also rise by 1% and that change will be without the upper ceiling.
This means 11% of £89.01 to £585 per week and then 1%	from then onwards.
| Gross Profit | 19% | [19/400] | Retained | Net Tax | 
| 9999.00 | 1899.81 | 1899.81 | 9999.00 | 0.00 | 
| 10000.00 | 1900.00 | 1900.00 | 10000.00 | 0.00 | 
| 10001.00 | 1900.19 | 1899.95 | 10000.76 | 0.24 | 
| 12000.00 | 2280.00 | 1805.00 | 11525.00 | 475.00 | 
| 15000.00 | 2850.00 | 1662.50 | 13812.50 | 1187.50 | 
| 16000.00 | 3040.00 | 1615.00 | 14575.00 | 1425.00 | 
| 18000.00 | 3420.00 | 1520.00 | 16100.00 | 1900.00 | 
| 20000.00 | 3800.00 | 1425.00 | 17625.00 | 2375.00 | 
| 22000.00 | 4180.00 | 1330.00 | 19150.00 | 2850.00 | 
| 24000.00 | 4560.00 | 1235.00 | 20675.00 | 3325.00 | 
| 25000.00 | 4750.00 | 1187.50 | 21437.50 | 3562.50 | 
| 26000.00 | 4940.00 | 1140.00 | 22200.00 | 3800.00 | 
| 28000.00 | 5320.00 | 1045.00 | 23725.00 | 4275.00 | 
| 30000.00 | 5700.00 | 950.00 | 25250.00 | 4750.00 | 
| 32000.00 | 6080.00 | 855.00 | 26775.00 | 5225.00 | 
| 34000.00 | 6460.00 | 760.00 | 28300.00 | 5700.00 | 
| 36000.00 | 6840.00 | 665.00 | 29825.00 | 6175.00 | 
| 38000.00 | 7220.00 | 570.00 | 31350.00 | 6650.00 | 
| 40000.00 | 7600.00 | 475.00 | 32875.00 | 7125.00 | 
| 42000.00 | 7980.00 | 380.00 | 34400.00 | 7600.00 | 
| 44000.00 | 8360.00 | 285.00 | 35925.00 | 8075.00 | 
| 46000.00 | 8740.00 | 190.00 | 37450.00 | 8550.00 | 
| 48000.00 | 9120.00 | 95.00 | 38975.00 | 9025.00 | 
| 50000.00 | 9500.00 | 0.00 | 40500.00 | 9500.00 | 
| 50001.00 | 9500.19 | 0.00 | 40500.81 | 9500.19 | 
| 51000.00 | 9690.00 | 0.00 | 41310.00 | 9690.00 |