Income tax rates in the UK for 2012 - 2013 tax period are given below.
Initially, you should deduct the income tax allowance so we also provided the
allowances for different categories of people.
Income tax rates
 
  | 
2011-12 | 
£ per year | 
2012-13 | 
£ per year | 
  | 
Starting
  savings rate: 10% | 
£0-£2,560 | 
Starting
  savings rate: 10% | 
£0-£2,710 | 
  | 
Basic
  rate: 20% | 
£0-£35,000 | 
Basic
  rate: 20% | 
£0-£34,370 | 
  | 
Higher
  rate: 40% | 
£35,001-£150,000 | 
Higher
  rate: 40% | 
£34,371-£150,000 | 
  | 
Additional
  Rate: 50% | 
Over £150,000 | 
Additional
  Rate: 50% | 
Over
  £150,000 | 
Income Tax
allowances:
 
  | 
Allowances | 
2011-12 | 
Change | 
2012-13 | 
  | 
Personal
  allowance (age under 65) | 
£7,475 | 
+630 | 
£8,105 | 
  | 
Personal
  allowance (age 65-74) | 
£9,940 | 
+560 | 
£10,500 | 
  | 
Personal
  allowance (age 75 and over) | 
£10,090 | 
+570 | 
£10,660 | 
  | 
Married
  couple's allowance Maximum (age 75 and over) | 
£7,295 | 
+410 | 
£7,705 | 
  | 
Income
  limit for age-related allowances 65 and over | 
£24,000 | 
+1,400 | 
£25,400 | 
  | 
Blind
  person’s allowance | 
£1,980 | 
+120 | 
£2,100 | 
How is your gross salary calculated?
Gross Salary - Tax free Allowances =
Total taxable 
Total taxable x Tax rate (% 10, 20, 40
or 50) = Tax paid
Total taxable - Tax paid - NI = Net
Salary