Taxation (Cambridge (CIE) O Level Economics)

Revision Note

Steve Vorster

Written by: Steve Vorster

Reviewed by: Jenna Quinn

The Classification of Taxes

  • The main source of government revenue is taxation

  • Direct taxes are taxes imposed on income and profits

    • They are paid directly to the government by the individual or firm 

      • E.g. Income tax, corporation tax, capital gains tax, national insurance contributions, inheritance tax

  • Indirect taxes are imposed on spending

    • The less a consumer spends the less indirect tax they pay

    • Examples of indirect tax include Value Added Tax (19% VAT rate in the European Union in 2022), taxes on demerit goods, excise duties on fuel etc. 

Progressive, regressive and proportional tax systems 

  • Tax systems can be classified as progressive, regressive or proportional

  • Most countries have a mix of progressive (direct taxation) and regressive (indirect taxation) taxes in place

An Explanation of Tax Systems

System

Explanation

Diagram

Progressive

  • As income rises, a larger percentage of income is paid in tax

  • In the diagram, when personal income rises from Y1 to Y2, the tax rate rises from TR1 to TR2

4-3-2-progressive-tax

Regressive

  • As income rises, a smaller percentage of income is paid in tax

  • In the diagram, when personal income rises from Y1 to Y2, the tax rate falls from TR1 to TR2

  • All indirect taxes are regressive

  • In the USA, Federal income tax is progressive but almost all State taxes are regressive (the bottom 20% of income earners pay as much as 6x the % of their income than the top 20%)

4-3-2-regressive-tax

Proportional

  • As income rises, the same percentage of income is paid in tax

  • In the diagram, when personal income rises from Y1 to Y2, the tax rate remains constant at 20%

  • In 2022, Bolivia was using this system with a proportional tax rate of 13%

 

4-3-2-proportional-tax
  • Progressive tax systems are built around the idea of marginal tax rates

  • The calculation of an individual's personal income tax requires several calculations

  • Using this system, a salary of £60,000 would attract a tax bill of £11,499.80, calculated as follows:

 
Calculation Using UK Progressive Tax Rates – June 2022

Tax Band

Taxable Income

Tax Rate

Tax Paid on £60,000

Personal Allowance

Up to £12,500

0%

0

Basic Rate

£12,501 to £50,000

20%

 £37, 499 at 20% = £7499.80

Higher Rate

£50,001 to £150,000

40%

£10,001 at 40% = £4,000

Additional Rate

Over £150,000

45%

0

Total Tax Paid on £60,000

 

 

£7499.80 + £4,000 = £11,499.80

Examiner Tips and Tricks

MCQ frequently test your knowledge of the different tax systems by presenting you with a table and asking you to identify the type of tax system illustrated

Identify the type of tax system illustrated below:

Weekly Income ($)

100

150

200

250

Weekly Tax ($)

20

30

40

50

It is a proportional tax system with a constant tax rate of 20%

Principles of Taxation

  • In order for the population to accept a tax system and pay into it, the taxes imposed need to be considered to be 'good'

  • There are several principles which should be applied when developing a 'good' tax system

  1. Simple: taxpayers should know what, when, where and how to pay the tax

  2. Fair (equity): taxes should reflect a taxpayer’s ability to pay - progressive taxation aims to achieve this as the wealthy can afford to pay more than the poor do

  3. Convenient: systems to collect payment should be easy and provide choice for taxpayers e.g. monthly payments spread over 12 months or tax collected by the employer each month before the salary is paid

  4. Efficient: the management of the tax system by the government should not be overly expensive or wasteful

  5. Fit for purpose: there should not be any unintended side effects of the system e.g. disincentivising workers from working

  6. Flexible: it should be easy to adjust/change as required by changes in the economy

The Impact of Taxation

  • Changes in direct and indirect tax rates influence a range of economic variables

    • The greater the size of the change, the greater the ripple effects felt by households, firms and the economy

Effects of Tax Rate Changes

Impact

Explanation

Incentive to work

  • The higher the tax rate, the lower the incentive for the unemployed to seek work - or for existing workers to work overtime

Government tax revenues

  • There is a relationship between increasing tax rates and the level of government revenues received

  • The broad idea is that as tax rates increase, a point will be reached where disincentivized workers work less, resulting in lower incomes and less government tax revenue

  • More people will actively seek to avoid paying tax (tax avoidance) or try to move their income elsewhere

Income distribution

  • A progressive tax system redistributes from those with higher income to those with lower income and reduces income inequality

  • Sometimes the benefits of a good progressive tax system are lost by the penalties imposed through multiple regressive (indirect) taxes

Economic growth

  • Tax rate increases will likely cause a reduction of total (aggregate) demand as firms and households have less disposable income

  • Tax rate decreases will have the opposite effect

  • As total demand slows down, fewer workers may be required for production and unemployment may increase

Inflation

  • Increasing Indirect tax rates increase costs of production for firms possibly leading to cost-push inflation

  • An increase in indirect taxes reduces disposable income and so workers may petition their employer for a salary increase

  • If they receive the increase the economy may face a wage-price spiral

The trade balance (X-M)

  • An increase in taxes can reduce disposable income which is likely to reduce the level of imports

  • This may improve the trade balance (exports - imports)

Business location

  • If the rate of corporation tax increases relative to other countries, it may result in less inward foreign direct investment by multi-national corporations

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Steve Vorster

Author: Steve Vorster

Expertise: Economics & Business Subject Lead

Steve has taught A Level, GCSE, IGCSE Business and Economics - as well as IBDP Economics and Business Management. He is an IBDP Examiner and IGCSE textbook author. His students regularly achieve 90-100% in their final exams. Steve has been the Assistant Head of Sixth Form for a school in Devon, and Head of Economics at the world's largest International school in Singapore. He loves to create resources which speed up student learning and are easily accessible by all.

Jenna Quinn

Author: Jenna Quinn

Expertise: Head of New Subjects

Jenna studied at Cardiff University before training to become a science teacher at the University of Bath specialising in Biology (although she loves teaching all three sciences at GCSE level!). Teaching is her passion, and with 10 years experience teaching across a wide range of specifications – from GCSE and A Level Biology in the UK to IGCSE and IB Biology internationally – she knows what is required to pass those Biology exams.