Welsh Income Tax Outturn Statistics: 2019 to 2020
Updated 4 January 2022
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1. Overview
The aim of these Experimental Statistics is to provide users with information of interest in relation to non-savings non-dividends (NSND) Income Tax for Welsh taxpayers. Information is also provided on Welsh Rates of Income Tax (WRIT) specifically.
This publication also shows:
- how many Welsh taxpayers are liable at each rate of tax
- the Welsh outturn amount at each rate of tax
- an estimate for how much NSND income tax paid by Welsh taxpayers is collected via Pay As You Earn (PAYE) and how much via payments made in Self Assessment (SA)
Additionally, these tables also provide equivalent information for rUK (England and Northern Ireland) taxpayers, on the same basis, so that comparisons can be made. References to tables throughout this bulletin refer to the statistical tables released alongside this bulletin, not the tables within the bulletin.
1.1 What does it mean that these are Experimental Statistics?
Experimental Statistics are statistics that are within their development phase and are published in order to involve potential users at an early stage in building a high-quality set of statistics that meet user needs.
The Experimental Statistics label highlights to users that HM Revenue and Customs (HMRC) are still working on further developing the style and content for the tables and commentary in this publication.
It should be emphasised that the label of Experimental Statistics does not mean that the statistics are of low quality, but it does signify that the statistics are novel and what statistics are reported and how is still being developed.
2. Main Findings
2.1 NSND Income Tax for all Welsh Taxpayers
The total amount of NSND income tax paid by Welsh taxpayers in 2019 to 2020 was £4,662 million. Of this:
- £3,524 million (75.6%) was at the Basic rate
- £934 million (20.0%) was at the Higher rate
- £204 million (4.4%) was at the Additional rate
There were 1,347,000 Welsh taxpayers who contributed towards this by having some income tax liability on their non-saving non-dividend (NSND) income. Of these:
- 1,250,000 (92.8%) were Basic rate taxpayers
- 93,000 (6.9%) were Higher rate taxpayers
- 4,000 (0.3%) were Additional rate taxpayers
2.2 Welsh Rates of Income Tax
The final outturn of Welsh Rates of Income Tax (WRIT) in 2019 to 2020 was £2,041 million. Of this:
- £1,762 million (86.3%) was at the Basic rate
- £233 million (11.4%) was at the Higher rate
- £45 million (2.2%) was at the Additional rate
The corresponding NSND Income Tax for rUK was £59,519 million. Of this:
- £40,764 million (68.5%) was at the Basic rate
- £11,261 million (18.9%) was at the Higher rate
- £7,494 million (12.6%) was at the Additional rate
3. Background
3.1 What are Welsh Rates of Income Tax?
From April 2019, the UK government reduced each of the three main rates of income tax – Basic, Higher and Additional rate – paid by Welsh taxpayers by 10 percentage points (ppts). The Welsh Government controls the three Welsh Rates of Income Tax (WRIT) which are added to the reduced UK Government rates. These were all set at 10ppts for the 2019 to 2020 tax year. The combination of reduced UK rates plus the Welsh rates determine the overall rate of income tax paid by Welsh taxpayers.
The WRIT outturn in HMRC’s Annual Report and Accounts determines the Welsh Government’s Income Tax revenues. The equivalent outturn for Income Tax on NSND for Rest of UK (rUK) taxpayers in these statistics is used by HM Treasury to adjust the Welsh Government’s Block Grant, consistent with its fiscal framework agreement.
Tables 1, 2 and 4 (and the commentary around them) in this release relate to all NSND Income Tax for Welsh taxpayers. Table 3 however relates to WRIT only.
3.2 Definitions of ‘non-savings non-dividends’ and ‘rUK’
The statistics in Tables 1 to 4 provide information about Income Tax due on non-saving non-dividend (NSND) income. NSND income includes earnings from employment, pensions, profits from self-employed sources and property.
Only Income Tax due on NSND income is devolved to Wales. These tables provide a comparison of how NSND Income Tax for Welsh taxpayers compares to that of taxpayers in rUK. As Income Tax due on NSND income is also devolved to Scotland, rUK is defined as England and Northern Ireland. HMRC publishes separate statistics on Scottish Income Tax.
Tax on NSND income in these tables is measured as the Income Tax liability expected to be collected by HMRC. There is also an adjustment to reflect reliefs which are not allocated to individual taxpayer accounts.
Taxpayers in these tables are defined as individuals who have some Income Tax liability on NSND income after reliefs have been applied to reduce Income Tax. In Tables 2 and 3 taxpayers have been assigned to a tax rate based solely on their NSND Income Tax and it is possible that they have paid tax at a higher rate on their savings/dividend income.
3.3 Established liabilities and where tax is paid
Employers and pension providers must normally operate PAYE as part of their payroll. PAYE is HMRC’s system to collect Income Tax and National Insurance (NI) from employments and is largely paid in the same year as the taxable activity. When an employer pays their employees through payroll, they also need to make tax and NI deductions for PAYE. Employers are then obliged to report the amount of these payments and deductions to HMRC as well as paying the tax and NI deducted to HMRC.
An individual is required to file a Self Assessment (SA) return if they meet certain criteria. This is required even for individuals who are also present in PAYE if a requirement for filing in SA is met. SA returns are generally submitted in the year after the taxable activity has taken place.
For the outturn calculation, an individual who files in SA will have all their Income Tax liability established in SA when they submit their return, even if they have had some tax deducted through PAYE. An individual who is not required to file in SA will have their liability established in PAYE when their information is reconciled each year under the National Insurance and PAYE Service (NPS).
Table 4 shows whether established NSND liabilities are paid through PAYE or SA. This split in Table 4 is different to how established liabilities are split between PAYE and SA in Table 1. For example, for an individual with self-employment income who files an SA return, if they have tax deducted through a PAYE scheme then Table 4 will reflect those corresponding liabilities as paid separately through SA and PAYE, respectively.
4. Welsh NSND Income Tax outturn and rUK comparison
4.1 Outturn components
Table 1 of the statistical release shows how each component of the outturn is combined to calculate the figure for the total NSND Income Tax for Welsh taxpayers. We also see how this compares to Scotland and rUK.
The largest components of the outturn are SA Established Liability and PAYE Established Liability. A higher proportion of NSND Income Tax liability is established through PAYE in Wales while more is established through SA for rUK. This could be caused by a higher proportion of rUK taxpayers submitting Self Assessment returns.
Figure 1: NSND Income Tax for Welsh taxpayers, 2019 to 2020
Table 1: NSND Income Tax for Welsh taxpayers, 2019 to 2020
| 2019 to 2020 Welsh NSND Income Tax | |
|---|---|
| SA Established Liability | £1,672 million |
| PAYE Established Liability | £3,055 million |
| Estimated further Liability | £116 million |
| Adjustment for uncollectable amounts | -£52 million |
| Relief at Source (RAS) | -£75 million |
| Gift Aid | -£54 million |
| Total | £4,662 million |
Figure 2: NSND Income Tax for rUK (England and Northern Ireland) taxpayers, 2019 to 2020
Table 2: NSND Income Tax for rUK (England and Northern Ireland) taxpayers, 2019 to 2020
| 2019 to 2020 rUK NSND Income Tax | |
|---|---|
| SA Established Liability | £91,445 million |
| PAYE Established Liability | £68,177 million |
| Estimated further Liability | £5,410 million |
| Adjustment for uncollectable amounts | -£1,580 million |
| Relief at Source (RAS) | -£1,935 million |
| Gift Aid | -£1,221 million |
| Total | £160,296 million |
4.2 Tax liabilities by band – all NSND Income Tax
Table 2 of the statistical release provides breakdowns of all NSND Income tax liabilities by tax band and taxpayer types. It highlights that although a small proportion (7.2%) of Welsh taxpayers are Higher or Additional rate taxpayers, they are liable for two fifths (40.0%) of NSND income tax in Wales.
Figure 3: Welsh NSND Income Tax by each taxpayer type, 2019 to 2020
Table 3: Welsh NSND Income Tax by each taxpayer type, 2019 to 2020
| 2019 to 2020 Welsh NSND Income Tax | |
|---|---|
| Basic Rate Taxpayers | 60.0% |
| Higher Rate Taxpayers | 31.0% |
| Additional Rate Taxpayers | 9.0% |
Figure 4: Share of Welsh taxpayers by their highest marginal tax rate, 2019 to 2020
Table 4: Share of Welsh taxpayers by their highest marginal tax rate, 2019 to 2020
| 2019 to 2020 Welsh NSND Income Tax | |
|---|---|
| Basic Rate Taxpayer | 92.8% |
| Higher Rate Taxpayer | 6.9% |
| Additional Rate Taxpayer | 0.3% |
4.3 Tax liabilities by band – Welsh Rates of Income Tax
Table 3 provides breakdowns of WRIT tax liabilities by tax band and taxpayer types. It compares this 10ppts wedge with the comparable wedge in rUK tax liabilities. These WRIT and corresponding rUK figures are used by HM Treasury to determine adjustments to the Welsh Government’s Block Grant.
Table 5: WRIT and comparable rUK NSND Income Tax, 2019 to 2020
| 2019 to 2020 WRIT | 2019 to 2020 Comparable rUK NSND Income Tax | |
|---|---|---|
| Basic Rate | £1,762 million | £40,764 million |
| Higher Rate | £233 million | £11,261 million |
| Additional Rate | £45 million | £7,494 million |
Since WRIT only accounts for 10ppts per tax band, a higher proportion of WRIT comes from tax at the Basic rate compared to all NSND Income Tax from Welsh taxpayers.
Figure 5: WRIT and comparable rUK NSND Income Tax by band, 2019 to 2020
Table 6: WRIT and comparable rUK NSND Income Tax by band, 2019 to 2020
| 2019 to 2020 WRIT | 2019 to 2020 Comparable rUK NSND Income Tax | |
|---|---|---|
| Basic Rate | 86.4% | 68.5% |
| Higher Rate | 11.4% | 18.9% |
| Additional Rate | 2.2% | 12.6% |
5. Indicative In-Year Welsh Income Tax
5.1 Background
HMRC provides in year monitoring data for Welsh Income Tax from RTI data to the Welsh Government (WG) and the Office for Budget Responsibility (OBR) each month.
Table 5 of this release shows the information HMRC shares as a monthly time series - how much UK tax is collected through employers (as reported in RTI) for the UK and what proportion is from Welsh taxpayers.
The Income Tax measure in Table 5 is not the same as that presented in Tables 1 to 4 as the tax reported in RTI will include amounts for things other than NSND tax. For example, any tax code adjustments for savings income or the High-Income Child Benefit Charge (HICBC) and non-taxable employee expenses paid through payroll with tax deducted. Therefore, Table 5 is not directly comparable to Table 1 to 4.
Welsh taxpayers are identified using the Welsh indicator from NPS (see section 4.1 for more details of how Welsh taxpayers are defined).
These monthly figures will generally not be updated after the end of the tax year.
5.2 Income Tax reported as withheld from RTI
The monthly time series of tax withheld in RTI is relatively similar for Welsh and rUK taxpayers. There is a clear spike in tax in March each year and this reflects when bonuses are generally paid, at the end of the tax year.
Smaller spikes throughout the tax year may be caused by in-year bonuses and redundancies.
Figure 6: RTI Income Tax reported as withheld for Welsh taxpayers, 2019 to 2020 and 2020 to 2021
Table 7: RTI Income Tax reported as withheld for Welsh taxpayers, 2019 to 2020 and 2020 to 2021
| Month | 2019 to 2020 | 2020 to 2021 |
|---|---|---|
| April | £387 million | £387 million |
| May | £376 million | £376 million |
| June | £385 million | £365 million |
| July | £374 million | £380 million |
| August | £365 million | £379 million |
| September | £366 million | £384 million |
| October | £378 million | £421 million |
| November | £367 million | £399 million |
| December | £382 million | £403 million |
| January | £368 million | £399 million |
| February | £377 million | £395 million |
| March | £415 million | £440 million |
The Welsh share of whole UK RTI Income Tax is similar to last year. The share is relatively consistent across most of the year but decreases towards the end of the tax year. This likely reflects bonus payments forming a smaller proportion of remuneration for Welsh employees compared to rUK.
However, in-year spikes may arise when businesses largely based in Wales pay bonuses or redundancy payments.
Figure 7: Welsh share of RTI Income Tax reported as withheld, 2019 to 2020 and 2020 to 2021
Table 8: Welsh share of RTI Income Tax reported as withheld, 2019 to 2020 and 2020 to 2021
| Month | 2019 to 2020 | 2020 to 2021 |
|---|---|---|
| April | 2.96% | 3.02% |
| May | 2.96% | 3.06% |
| June | 2.95% | 2.90% |
| July | 3.01% | 3.07% |
| August | 3.04% | 3.04% |
| September | 2.97% | 3.06% |
| October | 3.15% | 3.35% |
| November | 3.04% | 3.13% |
| December | 2.84% | 2.86% |
| January | 2.71% | 2.75% |
| February | 2.65% | 2.63% |
| March | 2.37% | 2.46% |
6. Definitions
6.1 Who is a Welsh taxpayer?
The definition of a Welsh taxpayer is based on where an individual resides in the course of a tax year. Welsh taxpayer status applies for a whole tax year – it is not possible to be a Welsh taxpayer for part of a tax year.
For most taxpayers, the location where they live will be obvious, but there will be less straightforward cases – for example, where people have more than one home, or have moved into or out of Wales during the year. HMRC has provided guidance to help in these circumstances.
The location of a person’s employer is not relevant. So, for example, someone who works in Wales, but has their home elsewhere in the UK, will not be a Welsh taxpayer.
Detailed guidance to whom Welsh Income Tax will apply
6.2 How do the tax systems on NSND income compare for Welsh and rUK taxpayers?
From April 2019, the UK government reduced each of the three main rates of income tax – Basic, Higher and Additional rate – paid by Welsh taxpayers by 10ppts. The Welsh Government controls the three Welsh rates of income tax which are added to the reduced UK rates. These were all set at 10ppts for the 2019 to 2020 tax year. The combination of reduced UK rates plus the Welsh rates determine the overall rate of income tax paid by Welsh taxpayers – making them identical to rUK rates.
Table 9: Welsh and rUK Income Tax Thresholds, 2019 to 2020
| Tax Band Threshold | Welsh Income Tax 2019 to 2020 | Rest of UK 2019 to 2020 |
|---|---|---|
| Personal Allowance | £12,500 | £12,500 |
| Higher rate threshold | £50,000 | £50,000 |
| Additional rate threshold | £150,000 | £150,000 |
Table 10: Tax rates for Welsh and rUK Income Tax, 2019 to 2020
| Tax Rates | UK Government Rates in Wales 2019 to 2020 | WRIT 2019 to 2020 | Overall Income Tax Rates 2019 to 2020 |
|---|---|---|---|
| Basic Rate | 10% | 10% | 20% |
| Higher Rate | 30% | 10% | 40% |
| Additional Rate | 35% | 10% | 45% |
6.3 Why are we producing these statistics?
The WRIT outturn in HMRC’s Annual Report determines the WG’s Income Tax revenues while the equivalent outturn for Income Tax on NSND income for rUK taxpayers in these statistics (Table 3 of the statistical release) is used by HMT to determine adjustments to the WG’s Block Grant. For Block Grant purposes the total outturn figures presented in HMRC’s Annual Report and this publication are final.
These statistics are being published to give more information about NSND Income Tax paid by Welsh taxpayers.
6.4 What is the relationship between these statistics and other personal tax statistics and information?
There are other publications which show similar statistics to what is shown in this publication. It is important to understand how these other statistics relate to what is being released here and highlight differences in coverage or data used to compile each set of statistics.
The following publications are explained below:
- Devolved tax and spending forecasts (OBR)
- Personal Income Statistics from the Survey of Personal Incomes
- Earnings and Employment Statistics from PAYE Real Time Information
- Income Tax Receipts Publication
OBR: Devolved tax and spending forecasts
The OBR was established in 2010 to provide independent and authoritative analysis of the UK’s public finances. Alongside the UK Government’s Budgets and other fiscal statements, they produce forecasts for the economy and the public finances. They publish these in their Economic and Fiscal Outlook (EFO).
The OBR publish devolved tax and spending forecasts alongside each EFO that are consistent with their main UK forecasts. HM Treasury draws on the OBR’s tax forecasts when making spending settlements for the Welsh Government in accordance with their fiscal framework. The OBR also publishes updated forecasts for the devolved taxes in Wales alongside the Welsh Government’s budgets in its Welsh Taxes Outlook (WTO).
In the EFO, the OBR forecast based on the national accounts, with SA recorded in the year in which it is received. This contrasts to the OBR Devolved tax and spending publication and in the statistics set out here, where SA is recorded on a liabilities basis (i.e. in the year in which the tax liability arose).
The latest OBR devolved forecasts of WRIT were published in March 2021. This shows the OBR forecast of WRIT for 2019 to 2020 to be £2.0bn. The latest full WTO publication was published in December 2020, this was updated in June 2021 with no change to the WRIT forecast.
OBR March 2021 Devolved Tax and Spending Forecast
SPI: Personal Income Statistics
HMRC release an annual publication from the Survey of Personal Incomes (SPI) which shows statistics for taxpayers’ personal incomes. This publication provides breakdowns to highlight the number of individuals with different sources of income and subject to certain reliefs.
In April 2021 HMRC published the annual Personal Income statistics for 2018 to 2019 which are based on the SPI. The data used in the SPI publication is different to the data used in this publication.
The SPI is a sample of around 750,000 individuals in either SA or PAYE. The SPI is designed to measure total income and the total tax impact on the Exchequer and therefore includes the tax impact of RAS payments to pension providers and Gift Aid payments to charities. It also measures liability and takes no account of some tax not being collected.
There is a further HMRC publication, ‘Income Tax Statistics and Distributions’, which provides projections for future tax years based on the SPI. The projections in that publication reflect announced changes to the Income Tax system and use determinants from the OBR to model tax liabilities in future years. The latest publication of this series was released in June 2021 and provides projections for tax years 2018 to 2019 to 2021 to 2022.
Income Tax Statistics and Distributions
The statistics presented in these two publications are not expected to be consistent with what is shown in this publication. This is due to sampling variation, the measurement differences described above and the fact that projections are a forecast of how tax liabilities may evolve for future years.
RTI: Earnings and Employment Statistics
Since April 2020 HMRC and the Office for National Statistics (ONS) have jointly released monthly statistics on earnings and employment statistics using data from PAYE RTI. The aim of this publication is to provide users with information on the number of individuals receiving pay from PAYE, their mean and median pay as paid through PAYE and the total amount of pay from PAYE in each country or region of the UK.
UK Real Time Information Experimental Statistics
The statistics in the RTI earnings and employment publication are different to the RTI statistics shown in Table 5 of this statistical release, although both are compiled from the same source of data.
The RTI publication presents information relating to employees only and excludes data on payments made to occupational pensioners while this publication includes tax collected from occupational pensions as well as employments
In addition, the RTI publication only presents statistics for number of employees and their pay. This release shows tax collected via PAYE, which may include collection of tax due on other income collected via the PAYE tax code. This can arise from savings or dividend income and other charges such as the HICBC.
Income Tax Receipts Publication
HMRC publish an annual National Statistics publication on Income Tax Receipts. The statistics presented in this publication show tax liabilities for specific tax years.
Income Tax Receipts Statistics
Liabilities are amounts of tax due on incomes arising in a given tax year, whereas receipts show amounts paid and collected in a given year. Due to lags in the Income Tax payment regimes, particularly for SA, liabilities and receipts for the same year can differ significantly.
Liabilities and receipts will also differ for other reasons, for example when over or underpayments occur which are repaid or recovered in a later year altering total receipts in that year in a way unrelated to tax liabilities for that year.
7. Outturn data methodology
The methodology set out in this section reflects the methodology for calculating the outturn which has been agreed between the WG and HMRC.
The final outturn figures reflect accrued revenue and have been calculated using actual liabilities data together with some estimation where actual data is unavailable. Details of this for each of the 6 components of the outturn figure is explained below.
Total NSND outturn =
- +SA Established liability
- +PAYE established liability
- +Estimated further liability
- -Adjustment for uncollectable amounts
- -Relief at source (RAS) pension relief
- -Gift Aid
7.1 SA Established Liability
Income Tax liability is established for all individuals in SA once their SA return has been received and their tax calculation has been conducted.
This includes any individual who is required to file an SA return who also has an employment or occupational pension for which tax is deducted at source through PAYE.
The established liability for those who submit an SA return is calculated for each taxpayer identified in SA by summing the Income Tax due at each tax rate on NSND income and then reducing it by a share of reliefs.
Reliefs
Income Tax reliefs reduce the total amount of Income Tax an individual is liable to pay.
Some reliefs, such as relief for qualifying distributions and refinance relief for landlords, can only be claimed when an individual has a specific source of income. In calculating the SA established liability such reliefs are prioritised to the appropriate stream of income before any excess is apportioned to other streams of income.
All other reliefs, such as marriage allowance, married couples’ allowance and relief for gift aid payments, can be claimed irrespective of what income sources an individual has. These ‘generic’ reliefs are applied proportionately to tax due on savings/dividend income and tax due on NSND income based on the level of gross Income Tax liability.
Other SA charges and CRCs
There are other charges which can be raised against an individual in SA through investigations/assessments or via a ‘Create Return Charge’ when an individual has failed to submit their return.
These additional charges, if known when data is being compiled, are also included when determining the SA established Income Tax liability.
Welsh share
The total SA established Welsh liability is then calculated by summing the NSND liability, net of reliefs, across each Welsh taxpayer in SA. This is done at a by band level.
Welsh taxpayers are defined by having a Welsh tax calculation in the SA system or being included in the Welsh NPS extract explained below.
The rUK established SA liability is calculated in a similar way but summing across all rUK taxpayers.
7.2 PAYE Established Liability
PAYE established liability includes:
- liabilities for individuals who are reconciled in PAYE
- PAYE settlement agreements
Individuals reconciled in PAYE
For individuals who are in PAYE but have not been issued with a notice to file in SA, their Income Tax liability is established when their PAYE account is reconciled.
A bespoke data extract of all Welsh and rUK taxpayer accounts in NPS for each tax year was commissioned specifically to assist in compiling the outturn figures.
This provided the liability for NSND income, net of reliefs, for all Welsh and rUK taxpayers by tax rate.
PAYE settlement agreements
The established PAYE amount includes a share of liabilities raised through PAYE Settlement Agreements (PSA).
A PSA allows an employer to make one annual payment to cover all the tax and National Insurance due on minor, irregular or impracticable expenses or benefits for their employees.
The expenses and benefits reflected in the PSA are not recorded through payroll and are not required to be included on end of year P11D forms, in which other employment expenses and benefits are reported to HMRC.
The Welsh share is determined by using RTI data to determine the share of tax collected by employers through PAYE schemes which have a PSA. RTI data is also used to determine how the tax is distributed across tax bands for Welsh and rUK taxpayers.
7.3 Estimated further liability
In addition to the established liability the final outturn figure includes an estimate for:
- liabilities from late filed SA returns
- liabilities realised from compliance activity
- liabilities from unreconciled PAYE cases
These are included within the outturn component ‘Estimated further liability’.
Late filed SA returns
The value of late filed SA returns has been estimated for each tax year by examining historic SA data to determine the pattern of SA filing in the preceding five tax years. It is assumed that the average growth of liabilities for these years will be similar to how the liabilities will grow for the years presented in these statistics.
This is performed separately for Welsh and rUK taxpayers. Taxpayers with a Welsh postcode were used as a proxy for Welsh taxpayers in these years, as no Welsh indicator exists before WRIT was introduced.
This is performed at a total level and a tax band level. The estimated value of late filed SA returns at each tax band is then scaled to the total estimated value.
Liabilities from compliance activity
Included in the estimated further liability is an amount to reflect SA Settlement Agreements not recorded through SA, which are raised as part of compliance investigations. The Welsh and rUK NSND share (as well as the split between tax bands) of this is assumed to be the same proportion as observed in the SA established liability.
Liabilities from unreconciled PAYE cases
Almost all PAYE cases are normally reconciled within 12 months of the end of the tax year. However, complex tax affairs or operational changes means that HMRC occasionally delays some customers’ end of year reconciliations to prevent them receiving an incorrect tax calculation or accounting update. As the cause of these delays may vary each year, appropriate methodologies for estimating the value of these unreconciled PAYE cases are identified via consultation with business experts each year. For 2019 to 2020, the value has been estimated by identifying the unreconciled cases and using tax receipt data from RTI.
7.4 Adjustment for uncollectable amounts
Uncollected SA amounts
This amount has been estimated based on the same sample of HMRC taxpayer data over the previous five tax years used to establish the late filed SA returns for the ‘Estimated further liability’ component.
The adjustment for uncollected amounts for each tax year is then estimated by applying the average from these historic collection rates to the known established and unestablished SA liability figures. This is completed separately for Welsh and rUK taxpayers to calculate specific uncollected amounts for each.
This is performed at a total level and a tax band level. The estimated value of uncollected amounts at each tax band is then scaled to the total estimated uncollected amount.
Uncollected PAYE amounts
Not all tax due is collected by HMRC and some is subsequently remitted or written off when it cannot be recovered.
This component reflects the amount written off from PAYE employers when they have failed to pay all the Income Tax they were expected to.
The uncollected amount is estimated by analysing data for the last four years, then a forecast is created based on the pattern demonstrated from this data. This gives an estimate of how much PAYE Income Tax (at a UK level) is expected to be remitted or written off in the future for each tax year. The forecast was slightly adjusted this year to account for the impact COVID19 may have on the profile of write-offs related to the 2019 to 2020 tax year.
The Welsh share of this uncollected amount is determined by analysing PAYE schemes which are known to have had an amount remitted or written off for that specific year.
RTI data is then analysed for each of these PAYE schemes to calculate what proportion of total tax collected by these schemes is in respect of Welsh taxpayers. RTI data is also used to determine how the tax is distributed across tax bands for Welsh and rUK taxpayers.
7.5 Relief At Source (RAS) pension relief
When an individual pays into a pension scheme the scheme treats this as being received net of Basic rate tax and reclaims that basic rate tax relief back from HMRC to add to the member’s pension pot.
This adjustment in the outturn calculation reflects the Basic rate tax being passed to the pension provider and no longer held as Income Tax by the exchequer.
The RAS for pension contributions in this calculation is determined by using information from annual returns made by pension schemes which show the amount of gross contributions made by scheme members in the appropriate tax year.
The proportion relating to Welsh taxpayers is calculated by identifying individual contributions made by scheme members who have a Welsh postcode held on the pension contribution data.
7.6 Gift Aid
When a taxpayer makes a charitable donation, the charity can claim Basic rate tax relief from HMRC on the value of the donation.
This adjustment in the outturn calculation reflects the Basic rate tax being passed to the charity and no longer held as Income Tax by the exchequer.
Charities can back date claims for this Basic rate tax by up to four years. Therefore, the value which will ultimately relate to a specific tax year has been estimated using previous years data.
The Welsh share has been estimated as an average of Wales’ share of the UK population and Wales’ share of total UK Income as measured by the SPI. Welsh cases were identified based on postcode as the Welsh indicator did not exist before WRIT was introduced.
7.7 HMRC RTI for PAYE methodology
The estimates in Table 5 have been sourced from data held on HMRC’s PAYE RTI administrative system. The RTI administrative system covers all individuals who have a live employment open on a PAYE Scheme.
Most people pay Income Tax through PAYE. This is the system that employers or pension providers use to take Income Tax and National Insurance contributions before they pay an employee’s wages or pension. An employee’s tax code tells the employer how much Income Tax to deduct.
Under RTI, employers are required to send HMRC information about tax and other deductions made through the PAYE system every time an employee is paid. Since April 2014, all employers have been required to report in real time with around 2.3 million PAYE schemes covering a total of 45 million employees and pensioners reporting through RTI. This provides HMRC with a very rich source of data, which can be used to better inform public understanding of the labour market.
Individuals who pay tax through the SA system are included in these statistics if they are also employed and paid via PAYE. Individuals with more complex financial affairs (for example the self-employed or those who have a high income) may also pay or be refunded Income Tax and NI through SA. Individuals in SA who are not in the PAYE system will not be included in these statistics.
HMRC provides Table 5 to the WG each month for WRIT from the RTI data to aid in year monitoring.
Production of in-year monitoring of Welsh tax receipts, provided in Table 5 of this publication, has the following caveats:
- the sum of these figures will not equate to the final outturn and are only intended to be an indication of part of the outturn (from employments covered by PAYE)
- RTI data does not include all income reported through Self Assessment such as profits from self-employment or income from property and thus only provides a partial picture of NSND Income Tax liabilities in Wales.
- Income Tax due on other sources of income such as savings interest may be collected through PAYE using a process known as coding out. This process is also used to collect amounts due for some non-Income Tax charges, such as HICBC. Coded out tax amounts are included in RTI data and therefore appear in these figures
- RTI data in-year is subject to amendments throughout the year, and any end-of-year updates that may occur are not included
- these figures are pre-reconciliation and provisional
- the NPS flag is taken as a snapshot in time and this means that as taxpayers change residential address during the year, their status and therefore the figures may change