Taxing Wages 2018

United Kingdom (2017-18 Income tax year)

Abstract

This chapter includes data on the income taxes paid by workers, their social security contributions, the family benefits they receive in the form of cash transfers as well as the social security contributions and payroll taxes paid by their employers. Results reported include the marginal and average tax burden for eight different family types.

Methodological information is available for personal income tax systems, compulsory social security contributions to schemes operated within the government sector, universal cash transfers as well as recent changes in the tax/benefit system. The methodology also includes the parameter values and tax equations underlying the data.

 

 

The national currency is the Pound Sterling (GBP). In 2017, GBP 0.78 was equal to USD 1. In 2017-18, the Average Worker is estimated to earn GBP 38 208 (Secretariat estimate).

1. Personal income tax system

1.1. Central government income taxes

1.1.1. Tax unit

The tax unit is the individual, but certain reliefs depend on family circumstances (see Section 1.1.2.1.).

1.1.2. Tax allowances and tax credits

All figures shown are those applying at the start of the tax year in April.

1.1.2.1. Standard reliefs

• Basic reliefs: A personal allowance of GBP 11 500 is granted to each individual with income below GBP 100 000. The personal allowance is then tapered away by GBP 1 for every GBP 2 of income above GBP 100 000.

• Standard marital status reliefs: Marriage Allowance – Allows the transfer of 10% of an individual’s personal allowance to their husband, wife or civil partner. The allowance is restricted to couples where the higher earner is a basic rate taxpayer and is only beneficial if the lower earner owes below the personal allowance. The allowance has to be claimed and is given only to those who meet the eligibility criteria.

• Working Tax Credit (WTC): A non-wastable tax credit available to low income families with or without children. It is available for families with children where one person works at least 16 hours a week (though hours must be at least 24 overall for a couple). It is also available for people with a disability who work at least 16 hours a week and for families without children where one person works at least 30 hours a week. The amount depends upon the hours worked, the ages of children, eligible childcare costs, and gross income. A family with a child 16 or under where the claimant (or, where applicable, their partner, or both claimants jointly) works at least 30 hours a week, would get a maximum credit of GBP 4 780 per year (assuming neither the adult(s) nor the child were disabled) before taking into account eligible childcare costs.1 This credit is reduced by 41 pence for each GBP 1 of net income above a threshold of GBP 6 420 per year. WTC was introduced on 6 April 2003.

• Relief for social security contributions and other taxes: None.

• Child Tax Credit (CTC): A non-wastable tax credit available to low and middle income families with children. It provides support for children until 1st September following their 16th birthday, and beyond that date to the age of 19 for those who continue in full-time non-advanced education. The amount depends on gross income, the number and age of the children and whether a family is making a new claim for CTC or already claiming CTC. A family with two eligible children would get a maximum credit GBP 6 105 per year, which is reduced by 41 pence for each GBP 1 of gross income above a threshold of GBP 16 105 if the family is not working. A lower threshold applies if the family is working; their CTC is reduced at the same rate once their WTC has been tapered to zero. CTC was introduced on 6 April 2003.

1.1.2.2. Main non-standard tax reliefs applicable to an AW

• Work-related expenses: Flat rate expenses for tools and special clothing are allowed to certain occupational categories. Since this provision is not applicable to all manufacturing occupations, and hence average workers, and because the rates vary slightly across categories, this relief is considered here as non-standard;

• Contributions to approved superannuation schemes or personal pension schemes are deducted when calculating taxable income. Premiums on approved life assurance policies payable to life assurance companies attract 12.5% tax relief for policies entered into force before 13 March 1984.

1.1.3. Tax schedule

In 2017-18 all taxpayers are liable on taxable income other than savings and dividend income at the basic rate of 20% on the first GBP 33 500, 40% over the basic rate limit of GBP 33 500 and 45% over the higher rate limit of GBP 150 000. (Taxable Income is defined as gross income for income tax purposes less allowances and reliefs available at the marginal rate.) Dividend income is charged at 7.5% up to the basic rate limit of GBP 33 500, 32.5% above GBP 33 500 and 38.1% above GBP 150 000. From 2017-18, a new Dividend Allowance means that dividend taxpayers won’t have to pay tax on the first GBP 5 000 of their dividend income, no matter what non-dividend income they have. Savings income is charged at 0% up to the starting rate limit on the first GBP 5 000, at 20% up to GBP 33 500, 40% above GBP 33 500 and 45% above GBP 150 000. From 2016-17, a new Personal Savings Allowance was introduced giving GBP 1 000 of savings income tax free for taxpayers with total income below the basic rate limit or GBP 500 for those with total income below the higher rate limit.

 

Taxable income (GBP)	Rate %
0-33 500	20
33 500-150 000	40
Over 150 000	45

1.2. State and local income tax

The Scottish Government has set the 2017-18 basic rate for non-savings non-dividend income of Scottish taxpayers unchanged from 2016-17 in cash terms at GBP 32 000 – below the level set by the UK Government of GBP 33 500.

2. Compulsory social security contributions to schemes operated within the government sector

2.1. Employees’ contributions

National Insurance contributions are payable by employees earning more than GBP 155 in any week. These are 12% of earnings between GBP 157 and GBP 866 and 2% of earnings above GBP 866. Depending on eligibility, members of the National Insurance scheme qualify for pensions, sickness, industrial injury, unemployment benefits, etc. All employees earning under GBP 157 per week have no National Insurance contribution liability but a notional contribution will be deemed to have been paid in respect of earnings between GBP 113 and GBP 157 to protect benefit entitlement.

2.2. Employers’ contributions

Employer’s contributions are not payable for employees earning less than GBP 157 per week. The rate of employers’ contributions for employees not contracted out of the additional (earnings related) scheme is 13.8% of earnings above GBP 157 per week.

The apprenticeship levy was introduced in April 2017. The apprenticeship levy is charged at a rate of 0.5% on the gross pay bill of employers. Employers will receive an allowance of GBP 15 000 per year to offset against the levy meaning that only employers with a gross pay bill of over GBP 3m will end up paying the levy. Due to the fact that the apprenticeship levy does not apply to all employers, it is not included in the Taxing Wages calculations.

3. Universal cash transfers

3.1. Transfers related to marital status

None (widows’ benefit is covered by the government pensions scheme noted above).

3.2. Transfers for dependent children

A child benefit of GBP 20.70 per week is paid in respect of the first child in the family up to the age of 19 (if the child aged 16-19 is in education or training) with GBP 13.70 per week paid for each subsequent child.

From January 2013, a new tax charge has been introduced for a taxpayer who has income over GBP 50 000 and either they or their partner are in receipt of Child Benefit. For those with income between GBP 50 000 and GBP 60 000, the amount of the charge will be 1% of the Child Benefit for every GBP 100 of income over GBP 50 000. For those with income over GBP 60 000, the amount of the charge will equal the amount of Child Benefit. Where both adults are over the threshold, the liability falls on the adult with the highest adjusted net income (ANI).

4. Memorandum items

4.1. Identification of AW and valuation of earnings

A new Annual Survey of Hours and Earnings (ASHE) has been developed to replace the New Earnings Survey (NES) (results of which are published in Labour Market Trends) and shows the average weekly earnings of full-time employees in April each year. It covers men and women at adult rates in the United Kingdom (excluding Northern Ireland). The annual figure used for the gross earnings of the AW in the United Kingdom is the annual equivalent of the arithmetic average of the weekly earnings figures for April at the beginning and end of the fiscal year, as published in Labour Market Trends.

The earnings figures exclude the earnings of those whose pay was affected by absence (due to sickness etc.). They include overtime, payment by results and shift payments. But they do not include benefits in kind (which could in some circumstances be included in the employee’s taxable income in the United Kingdom).

4.2. Employers’ contributions to private pension, health etc. schemes

In 2008, there were 9.0 million active members of occupational pension schemes with two or more members in the UK, of whom 3.6 million were in the private sector and 5.4 million in the public sector.

United Kingdom (2017-18 Income tax year)

2017 parameter values

Average earnings/yr	Ave_earn	38 208	Secretariat Estimate
Allowances	Basic_al	11 500
	PA taper start	100 000
	Married_al	1 150
	Married_rate	0
Income tax	Tax_sch	0.2	33 500
		0.4	150 000
		0.45
Employees SSC
Primary threshold	SSC_sch	0	8 164	PT
Upper earnings limit		0.12	45 000	UEL
		0.02
Employers SSC	SSC_rate2	0.138
	ST	8 164
Child benefit (first)	CB_first	20.70
Child benefit (others)	CB_others	13.70
	CB_1st_thres	50 000.00
	CB_2nd_thres	60 000.00
	CB_taper1	0.01
	CB_taper2	100.00
NEW TAX CREDITS
WTC
Basic element	WTC_Basic	1 960
Couple/Lone parent	WTC_couple_or_lone	2 010
30 Hour element	WTC_30hr	810
CTC
Family element	CTC_family	545
Child element	CTC_child	2 780
Baby element	CTC_baby
Threshold	NTC_1st_thres	6 420
	NTC_1st_taper	0.41
Days in tax year	Numdays	365

2017 tax equations

The equations for the UK system are mostly on an individual basis. But Child and Working tax credits are calculated on a family basis and child benefit is calculated only once. This is shown by the Range indicator in the table below.

The functions which are used in the equations (Taper, MIN, Tax etc) are described in the technical note about tax equations. Variable names are defined in the table of parameters above, within the equations table, or are the standard variables “married” and “children”. A reference to a variable with the affix “_total” indicates the sum of the relevant variable values for the principal and spouse. And the affixes “_princ” and “_spouse” indicate the value for the principal and spouse, respectively. Equations for a single person are as shown for the principal, with “_spouse” values taken as 0.

 

	Line in country table and intermediate steps	Variable name	Range	Equation
1.	Earnings	Earn
2.	Allowances:	tax_al	B	Tax_al IF(earn<PA_taper,IF(AND(earn<(BRL+Basic_al),earn_spouse<Basic_al, Married=’1),IF(earn>earn_spouse,Basic_al+Married_al,Basic_al-Married_al), Basic_al),IF(earn>(PA_taper+(Basic_al*2)),0,MAX(0,(Basic_al-((earn-PA_taper)’/2)))))
3.	Credits in taxable income	taxbl_cr	B	0
4.	CG taxable income	tax_inc	B	Positive(earn-tax_al)
5.	CG tax before credits	CG_tax_excl	B	Tax(tax_inc, tax_sch)
6.	Tax credits (nonwastable)	tax_cr	J	IF(Children>0, (Taper(ROUNDUP(CTC_family/numdays, 2)*numdays+Children* ROUNDUP(CTC_child/numdays, 2)*numdays+ROUNDUP(WTC_Basic/numdays, 2)*numdays+ROUNDUP(WTC_30hr/numdays, 2)*numdays+ROUNDUP(WTC_ couple_or_lone/numdays, 2)*numdays, earn_total, NTC_1st_thres, NTC_1st_ taper), Taper(ROUNDUP(WTC_Basic/numdays, 2)*numdays+ROUNDUP(WTC_ 30hr/numdays, 2)*numdays+IF(Married=’1,’ ROUNDUP(WTC_couple_or_lone/numdays, 2)*numdays, 0), earn_total, NTC_1st_thres, NTC_1st_taper))
7.	CG tax	CG_tax	B	CG_tax_excl-tax_cr
8.	State and local taxes	local_tax	B	0
9.	Employees’ soc security	SSC	B	Tax(earn, SSC_sch)
11.	Cash transfers	cash_trans	J	=’IF(princ_earn>CB_1st_thres,IF(princ_earn>CB_2nd_thres,0,((1-(AA7-CB_1st_ thres)’/(CB_taper2/CB_taper1)))*(numdays/7*((Children>0)*CB_first+CB_others* Positive(Children-1)))),(numdays/7*((Children>0)*CB_first+CB_others*Positive (Children-1))))
13.	Employer’s soc security	SSC_empr	B	(earn>ST)*(earn-ST)*SSC_rate2
	Memorandum item: Non-wastable tax credit
	tax expenditure component	Taxexp	J	Tax_cr-transfer
	cash transfer component	Transfer	J	IF(CG_tax_excl<0, -CG_tax_excl, 0)

Key to range of equation B calculated separately for both principal earner and spouse P calculated for principal only (value taken as 0 for spouse calculation) J calculated once only on a joint basis.

Note

← 1. The amount of credit received is calculated by dividing separately each element of the credit by the number of days in the tax year and rounding up to the nearest penny to give a daily rate. These daily rates are then multiplied by the number of days in the relevant period (for the purposes of this Report, the tax year) and added together.