2019 To 2020 Income Tax Calculator

Introduction & Importance of the 2019-2020 Income Tax Calculator

The 2019 to 2020 tax year (6 April 2019 to 5 April 2020) introduced several important changes to the UK tax system that continue to affect millions of taxpayers. This comprehensive calculator provides an accurate breakdown of your income tax, National Insurance contributions, and potential student loan repayments based on the exact tax bands and allowances that were in effect during this period.

Understanding your 2019-2020 tax obligations remains crucial for several reasons:

1. Historical Accuracy: For individuals filing late tax returns or amending previous submissions
2. Financial Planning: Comparing with current tax years to understand changes in your tax burden
3. Dispute Resolution: Providing evidence for HMRC inquiries about this specific tax year
4. Investment Analysis: Assessing the tax efficiency of investments made during this period
5. Legal Requirements: Meeting obligations for self-assessment or PAYE reconciliations

The 2019-2020 tax year was particularly notable for:

• The personal allowance increased to £12,500 (from £11,850 in 2018-19)
• The higher rate threshold rose to £50,000 (from £46,350)
• Introduction of the Welsh Rate of Income Tax (WRIT) for Welsh taxpayers
• Changes to the Marriage Allowance transferable amount (£1,250)
• Adjustments to the National Insurance thresholds and rates

How to Use This 2019-2020 Income Tax Calculator

Follow these step-by-step instructions to get the most accurate tax calculation for the 2019-2020 tax year:

1. Enter Your Annual Income:
   • Input your total gross income for the 2019-2020 tax year (6 April 2019 to 5 April 2020)
   • Include salary, bonuses, rental income, and other taxable income sources
   • Exclude non-taxable income like ISAs or premium bond winnings
2. Pension Contributions:
   • Enter any pension contributions made through salary sacrifice or personal contributions
   • These reduce your taxable income (net of basic rate tax relief)
   • For workplace pensions, use the amount before tax relief is applied
3. Select Your Tax Code:
   • Choose the tax code that appears on your P45 or P60 for 2019-2020
   • 1250L was the standard code for most taxpayers
   • Scottish taxpayers should select the appropriate ‘S’ code
   • Welsh taxpayers should select the ‘C’ code if applicable
4. Student Loan Information:
   • Select your repayment plan type (Plan 1, Plan 2, or Postgraduate)
   • Plan 1 applies to loans taken before September 2012
   • Plan 2 applies to loans taken after September 2012
   • Postgraduate loans have different thresholds and rates
5. Residency Status:
   • Indicate if you were a Scottish taxpayer during 2019-2020
   • Scottish tax bands differ from the rest of the UK
   • Welsh taxpayers are treated the same as English for this calculator
6. Special Allowances:
   • Select ‘Yes’ for Blind Person’s Allowance if you were registered blind
   • This adds £2,450 to your personal allowance for 2019-2020
7. Review Your Results:
   • The calculator shows your taxable income after allowances
   • Breakdown of income tax by band (basic, higher, additional)
   • National Insurance contributions (Class 1)
   • Student loan repayments if applicable
   • Your net take-home pay after all deductions
   • Effective tax rate as a percentage of your gross income

What if I don’t know my exact 2019-2020 income?

If you don’t have your exact income figure, you can:

1. Check your P60 from your employer (issued after 5 April 2020)
2. Review your bank statements for the tax year to calculate total income
3. Access your personal tax account on GOV.UK
4. Contact HMRC directly if you’ve lost your records (have your NI number ready)

For self-employed individuals, refer to your 2019-2020 Self Assessment tax return (SA100 form).

How does the Marriage Allowance affect my 2019-2020 tax?

The Marriage Allowance for 2019-2020 allowed lower-earning spouses to transfer £1,250 of their personal allowance to their higher-earning partner, potentially reducing their tax bill by £250.

Eligibility requirements:

• You must have been married or in a civil partnership
• The lower earner’s income must have been £12,500 or less
• The higher earner’s income must have been between £12,501 and £50,000 (£43,430 in Scotland)

If you were eligible but didn’t claim, you can backdate your claim to include the 2019-2020 tax year.

Formula & Methodology Behind the Calculator

Our 2019-2020 income tax calculator uses the exact tax bands, allowances, and rates that were in effect during that tax year. Here’s the detailed methodology:

1. Personal Allowance Calculation

The standard personal allowance for 2019-2020 was £12,500. This was reduced by £1 for every £2 earned over £100,000, creating an effective 60% tax rate between £100,000 and £125,000.

Income Range	Personal Allowance	Effective Tax Rate
£0 – £100,000	£12,500	Normal rates apply
£100,001 – £125,000	Reduced by £1 for every £2 over £100,000	60% (including allowance withdrawal)
Over £125,000	£0	45% on all income

2. Income Tax Bands and Rates

The calculator applies different tax bands depending on whether you were a Scottish taxpayer or not:

England, Wales & Northern Ireland:

Tax Band	Taxable Income Range	Tax Rate
Personal Allowance	Up to £12,500	0%
Basic Rate	£12,501 to £50,000	20%
Higher Rate	£50,001 to £150,000	40%
Additional Rate	Over £150,000	45%

Scotland:

Tax Band	Taxable Income Range	Tax Rate
Personal Allowance	Up to £12,500	0%
Starter Rate	£12,501 to £14,549	19%
Basic Rate	£14,550 to £24,944	20%
Intermediate Rate	£24,945 to £43,430	21%
Higher Rate	£43,431 to £150,000	41%
Top Rate	Over £150,000	46%

3. National Insurance Calculations

For 2019-2020, Class 1 National Insurance contributions were calculated as follows:

• Primary Threshold: £166 per week (£8,632 per year)
• Upper Earnings Limit: £962 per week (£50,000 per year)
• Rate between threshold and UEL: 12%
• Rate above UEL: 2%

4. Student Loan Repayments

The calculator handles all three repayment plans:

• Plan 1:
  • Threshold: £18,935 per year
  • Rate: 9% of income above threshold
• Plan 2:
  • Threshold: £25,725 per year
  • Rate: 9% of income above threshold
• Postgraduate:
  • Threshold: £21,000 per year
  • Rate: 6% of income above threshold

5. Pension Contributions

The calculator treats pension contributions as follows:

• Reduces taxable income for income tax purposes
• Does not affect National Insurance calculations
• Assumes contributions are made net of basic rate tax relief (for workplace pensions)
• For personal pensions, enter the gross amount before tax relief

Real-World Examples: 2019-2020 Tax Calculations

Case Study 1: Basic Rate Taxpayer (England)

• Annual Income: £30,000
• Pension Contributions: £2,400 (8% of salary)
• Tax Code: 1250L
• Student Loan: Plan 2
• Scotland Resident: No
• Blind: No

Calculation Breakdown:

• Taxable Income: £30,000 – £2,400 (pension) = £27,600
• Personal Allowance: £12,500
• Income Tax:
  • Basic rate (£27,600 – £12,500 = £15,100) × 20% = £3,020
• National Insurance:
  • Weekly equivalent: £30,000 ÷ 52 = £576.92
  • Above primary threshold (£166): £576.92 – £166 = £410.92
  • Below UEL (£962), so 12% of £410.92 × 52 = £2,569.85
• Student Loan (Plan 2):
  • Income above threshold: £30,000 – £25,725 = £4,275
  • Repayment: £4,275 × 9% = £384.75
• Take Home Pay: £30,000 – £3,020 (tax) – £2,569.85 (NI) – £384.75 (student loan) = £23,025.40
• Effective Tax Rate: (£3,020 + £2,569.85 + £384.75) ÷ £30,000 = 19.66%

Case Study 2: Higher Rate Taxpayer (Scotland)

• Annual Income: £60,000
• Pension Contributions: £4,800 (8% of salary)
• Tax Code: S1250L
• Student Loan: Plan 1
• Scotland Resident: Yes
• Blind: No

Calculation Breakdown:

• Taxable Income: £60,000 – £4,800 = £55,200
• Personal Allowance: £12,500
• Income Tax:
  • Starter rate (£14,549 – £12,500 = £2,049) × 19% = £389.31
  • Basic rate (£24,944 – £14,549 = £10,395) × 20% = £2,079.00
  • Intermediate rate (£43,430 – £24,944 = £18,486) × 21% = £3,881.06
  • Higher rate (£55,200 – £43,430 = £11,770) × 41% = £4,825.70
  • Total income tax = £11,175.07
• National Insurance:
  • Weekly equivalent: £60,000 ÷ 52 = £1,153.85
  • Above UEL (£962): £1,153.85 – £962 = £191.85
  • Below UEL portion: (£962 – £166) × 12% × 52 = £4,988.16
  • Above UEL portion: £191.85 × 2% × 52 = £199.51
  • Total NI = £5,187.67
• Student Loan (Plan 1):
  • Income above threshold: £60,000 – £18,935 = £41,065
  • Repayment: £41,065 × 9% = £3,695.85
• Take Home Pay: £60,000 – £11,175.07 (tax) – £5,187.67 (NI) – £3,695.85 (student loan) = £39,941.41
• Effective Tax Rate: (£11,175.07 + £5,187.67 + £3,695.85) ÷ £60,000 = 33.35%

Case Study 3: Additional Rate Taxpayer with Complex Allowances

• Annual Income: £160,000
• Pension Contributions: £20,000
• Tax Code: 1250L
• Student Loan: None
• Scotland Resident: No
• Blind: Yes (£2,450 additional allowance)

Calculation Breakdown:

• Taxable Income: £160,000 – £20,000 = £140,000
• Personal Allowance:
  • Standard: £12,500
  • Blind Person’s: £2,450
  • Total: £14,950
  • But income > £125,000, so personal allowance is £0 (reduced by £1 for every £2 over £100,000)
  • Blind Person’s Allowance remains: £2,450
• Income Tax:
  • Basic rate (£37,500) × 20% = £7,500
  • Higher rate (£100,000 – £37,500 = £62,500) × 40% = £25,000
  • Additional rate (£140,000 – £2,450 allowance – £100,000 = £37,550) × 45% = £16,992.50
  • Total income tax = £49,492.50
• National Insurance:
  • Weekly equivalent: £160,000 ÷ 52 = £3,076.92
  • Above UEL (£962): £3,076.92 – £962 = £2,114.92
  • Below UEL portion: (£962 – £166) × 12% × 52 = £4,988.16
  • Above UEL portion: £2,114.92 × 2% × 52 = £2,199.52
  • Total NI = £7,187.68
• Take Home Pay: £160,000 – £49,492.50 (tax) – £7,187.68 (NI) = £103,319.82
• Effective Tax Rate: (£49,492.50 + £7,187.68) ÷ £160,000 = 35.36%

Data & Statistics: 2019-2020 Tax Year in Context

Historical Tax Revenue (2015-2020)

Tax Year	Personal Allowance	Basic Rate Threshold	Higher Rate Threshold	Total Income Tax Revenue (£bn)	Avg Tax per Taxpayer
2015-2016	£10,600	£31,785	£150,000	178.6	£4,230
2016-2017	£11,000	£32,000	£150,000	184.2	£4,350
2017-2018	£11,500	£33,500	£150,000	190.1	£4,480
2018-2019	£11,850	£34,500	£150,000	195.5	£4,610
2019-2020	£12,500	£37,500	£150,000	202.3	£4,760

Source: HMRC Tax Receipts Statistics

Taxpayer Distribution by Income Band (2019-2020)

Income Range	Number of Taxpayers (millions)	% of Total Taxpayers	Avg Tax Paid	% of Total Tax Revenue
£0 – £12,500	12.4	29.3%	£0	0%
£12,501 – £37,500	18.7	44.2%	£1,850	15.6%
£37,501 – £50,000	5.2	12.3%	£4,200	12.1%
£50,001 – £100,000	4.8	11.4%	£12,500	30.2%
£100,001 – £150,000	1.2	2.8%	£35,000	22.1%
Over £150,000	0.4	1.0%	£62,500	20.0%
Total	42.7	100%	£4,760	100%

Source: Institute for Fiscal Studies

Expert Tips for 2019-2020 Tax Optimization

Legitimate Ways to Reduce Your 2019-2020 Tax Bill

1. Maximize Pension Contributions:
   • Contributions reduce your taxable income
   • Basic rate tax relief is automatic (20%)
   • Higher rate taxpayers can claim additional 20% or 25% through self-assessment
   • Annual allowance was £40,000 for 2019-2020 (tapered for high earners)
2. Utilize ISA Allowances:
   • £20,000 ISA allowance for 2019-2020
   • No income tax or capital gains tax on ISA investments
   • Consider Lifetime ISAs for first-time buyers (£4,000 limit with 25% bonus)
3. Claim All Allowable Expenses:
   • Self-employed can claim legitimate business expenses
   • Home office costs (£4/week without receipts or actual costs)
   • Travel expenses for business miles (45p per mile for first 10,000 miles)
   • Professional subscriptions and training costs
4. Marriage Allowance Transfer:
   • Transfer £1,250 of personal allowance between spouses
   • Saves up to £250 in tax for the receiving partner
   • Can be backdated to 2015-2016 if eligible
5. Capital Gains Tax Planning:
   • Annual exempt amount was £12,000 for 2019-2020
   • Transfer assets between spouses to utilize both allowances
   • Consider timing of asset sales to spread gains over tax years
6. Charitable Donations:
   • Gift Aid donations extend your basic rate band
   • Higher rate taxpayers can claim additional tax relief
   • Donating shares can be more tax-efficient than selling them
7. Property Income Strategies:
   • Property allowance of £1,000 for casual landlords
   • Consider joint ownership to utilize both partners’ allowances
   • Claim all deductible expenses (agent fees, maintenance, insurance)

Common Mistakes to Avoid

• Missing Deadlines:
  • Paper self-assessment returns due by 31 October 2020
  • Online returns due by 31 January 2021
  • Payment deadline was also 31 January 2021
  • Late filings incur £100 penalty immediately
• Incorrect Tax Codes:
  • Check your P60 or PAYE coding notice
  • Common errors include wrong personal allowance or outdated codes
  • Contact HMRC if you believe your code is incorrect
• Ignoring Side Income:
  • All income over £1,000 must be declared (trading allowance)
  • This includes freelance work, rental income, and investment income
  • Failure to declare can result in penalties and interest
• Overclaiming Expenses:
  • Only claim genuine business expenses
  • Keep receipts and records for at least 5 years
  • HMRC may request evidence for claims
• Forgetting Previous Years:
  • You can usually go back 4 years to claim tax reliefs
  • Common missed claims include work expenses and charitable donations
  • Use this calculator to identify potential overpayments

Interactive FAQ: 2019-2020 Income Tax Questions

What were the key differences between 2019-2020 and 2018-2019 tax years?

The 2019-2020 tax year introduced several important changes from 2018-2019:

• Personal Allowance: Increased from £11,850 to £12,500
• Higher Rate Threshold: Increased from £46,350 to £50,000
• Welsh Taxpayers: First year of Welsh Rate of Income Tax (WRIT)
• Scottish Tax Bands: Introduced new intermediate rate (21%) between £24,945 and £43,430
• National Insurance: Upper Earnings Limit aligned with higher rate threshold at £50,000
• Marriage Allowance: Transferable amount increased from £1,190 to £1,250
• Rent-a-Room Relief: Threshold increased from £7,500 to £7,500 (no change, but often confused)

These changes generally reduced the tax burden for basic rate taxpayers while increasing the complexity for higher earners, particularly in Scotland where the tax bands differed significantly from the rest of the UK.

How did the 2019-2020 tax year affect self-employed individuals differently?

Self-employed individuals faced several specific considerations in 2019-2020:

1. Class 2 National Insurance:
   • Flat rate of £3.00 per week (£156 per year)
   • Only payable if profits exceeded £6,365
   • Counted towards state pension entitlement
2. Class 4 National Insurance:
   • 9% on profits between £8,632 and £50,000
   • 2% on profits above £50,000
3. Payment on Account:
   • Due dates: 31 January 2020 and 31 July 2020
   • Each payment was 50% of previous year’s tax bill
   • Balancing payment due 31 January 2021
4. Trading Allowance:
   • £1,000 tax-free allowance for casual income
   • Couldn’t be used with rent-a-room relief
   • If expenses were less than £1,000, could claim the allowance instead
5. Making Tax Digital:
   • Pilot scheme was voluntary for income tax in 2019-2020
   • Would become mandatory for VAT-registered businesses from April 2022
   • Encouraged digital record-keeping

Self-employed individuals also needed to be particularly careful about:

• Separating business and personal expenses
• Maintaining accurate records for at least 5 years
• Understanding the difference between cash basis and traditional accounting
• Claiming capital allowances for business equipment

Can I still amend my 2019-2020 tax return if I find an error?

Yes, you can still amend your 2019-2020 tax return, but there are important deadlines and procedures to follow:

For Online Returns:

• You have until 31 January 2022 to amend your return online
• After this date, you must write to HMRC to make changes
• Log in to your HMRC online account to make amendments

For Paper Returns:

• The deadline to amend was 31 January 2021
• After this date, you must contact HMRC directly

Important Considerations:

• If you owe more tax, you’ll need to pay it plus potential interest
• If you’re due a refund, HMRC will process it automatically
• Keep records to support any changes you make
• For complex amendments, consider professional advice

How to Amend:

1. Go to the ‘Self Assessment’ section of your HMRC account
2. Select ‘More Self Assessment details’
3. Choose ‘At a glance’ then ‘Tax Return options’
4. Select the 2019-2020 return and choose to amend it
5. Make your changes and submit the amended return

If you miss the online amendment deadline, you’ll need to write to:

Self Assessment
HM Revenue and Customs
BX9 1AS
United Kingdom

Include your UTR (Unique Taxpayer Reference) and explain the changes needed.

How does this calculator handle the tapering of the personal allowance for high earners?

Our calculator accurately models the personal allowance tapering that affects individuals with income over £100,000 in 2019-2020:

Tapering Rules:

• For every £2 earned above £100,000, the personal allowance is reduced by £1
• This creates an effective 60% tax rate between £100,000 and £125,000
• At £125,000, the personal allowance is completely eliminated

Calculation Example:

For someone earning £110,000:

• Excess over £100,000 = £10,000
• Allowance reduction = £10,000 ÷ 2 = £5,000
• Remaining personal allowance = £12,500 – £5,000 = £7,500

Special Cases:

• Scottish Taxpayers: The tapering applies the same way, but the higher rate threshold was £43,430
• Blind Person’s Allowance: This is added after the personal allowance calculation
• Pension Contributions: These reduce your income before the tapering calculation

Visualization in Results:

The calculator shows:

• Your effective personal allowance after tapering
• The additional “tax” from losing the allowance (shown in the 60% band)
• The marginal tax rate in the £100k-£125k range

This accurate modeling helps you understand why earners in this bracket often see surprisingly high effective tax rates.

What records should I keep from the 2019-2020 tax year?

HMRC requires you to keep records for at least 5 years after the 31 January submission deadline for the relevant tax year. For 2019-2020, this means until at least 31 January 2026. Here’s what you should retain:

For Employed Individuals:

• P60 from your employer (shows total pay and tax deducted)
• P45 if you left a job during the tax year
• P11D or P9D if you received benefits in kind
• Payslips (especially if claiming expenses)
• Records of any work-related expenses you claimed
• Pension statements showing contributions
• Charitable donation receipts (for Gift Aid claims)

For Self-Employed Individuals:

• Invoices issued and received
• Bank statements (business accounts)
• Receipts for all business expenses
• Mileage logs if claiming vehicle expenses
• Records of home office use (bills, mortgage statements)
• Asset purchase receipts (for capital allowances)
• Previous tax returns and calculations

For Landlords:

• Tenancy agreements
• Rent received records
• Property expense receipts (repairs, agent fees)
• Mortgage interest statements
• Energy Performance Certificate (EPC) if applicable

For Investors:

• Dividend vouchers
• Share purchase/sale confirmations
• Interest statements from banks
• Capital gains calculations

Digital Records:

HMRC accepts digital records, but they must:

• Be preserved in their original format
• Be easily accessible and readable
• Include all the information that would be on paper records

Special Cases:

• If you’re under HMRC investigation, keep records until the investigation is complete
• For property transactions, keep records for at least 6 years after disposal
• If you’ve claimed certain capital allowances, keep records for the life of the asset plus 5 years

Good record-keeping not only ensures compliance but can also help you identify legitimate tax deductions you might have missed.

How does this calculator handle Scottish tax rates differently?

Our calculator includes special logic to handle the unique Scottish income tax system that was in place for 2019-2020. Here’s how it works:

Key Differences:

• Scotland had 5 income tax bands (vs 3 in rest of UK)
• The higher rate threshold was £43,430 (vs £50,000)
• Introduced a new intermediate rate of 21%
• The top rate was 46% (vs 45%)

Scottish Tax Bands (2019-2020):

Band	Taxable Income Range	Rate
Personal Allowance	Up to £12,500	0%
Starter Rate	£12,501 – £14,549	19%
Basic Rate	£14,550 – £24,944	20%
Intermediate Rate	£24,945 – £43,430	21%
Higher Rate	£43,431 – £150,000	41%
Top Rate	Over £150,000	46%

Calculator Implementation:

• When you select “Yes” for Scottish residency, the calculator switches to Scottish rates
• The personal allowance tapering works the same way (reduced by £1 for every £2 over £100,000)
• National Insurance calculations remain the same (UK-wide system)
• Student loan repayments use UK-wide thresholds

Example Comparison:

For someone earning £50,000:

	Rest of UK	Scotland
Personal Allowance	£12,500	£12,500
Taxable Income	£37,500	£37,500
Basic Rate Tax	£37,500 × 20% = £7,500	£2,049 × 19% = £389.31 £10,395 × 20% = £2,079.00 £18,486 × 21% = £3,881.06 £6,570 × 41% = £2,693.70 Total = £9,043.07
Difference	Scottish taxpayer pays £1,543.07 more

Important Notes:

• Scottish taxpayers still pay UK rates on savings and dividend income
• The Scottish Government sets the rates, but HMRC collects the tax
• Your tax code will start with ‘S’ if you’re a Scottish taxpayer

What should I do if the calculator shows I overpaid tax in 2019-2020?

If our calculator indicates you overpaid tax for 2019-2020, follow these steps to claim a refund:

For PAYE Employees:

1. Check Your P800:
   • HMRC should automatically send you a P800 tax calculation if they think you’ve overpaid
   • This usually arrives between June and November after the tax year ends
2. Claim Online:
   • Use the HMRC online service
   • You’ll need your P60 and details of any work expenses
   • Refunds are typically processed within 5 weeks
3. Contact HMRC:
   • Phone: 0300 200 3300 (self-assessment helpline)
   • Post: Include your P60 and a letter explaining why you believe you’ve overpaid

For Self-Assessment Taxpayers:

1. Amend Your Return:
   • Log in to your HMRC account and correct any errors
   • The system will automatically calculate any refund due
2. Wait for Processing:
   • Refunds for online amendments are typically processed within 4 weeks
   • For paper amendments, it can take up to 8 weeks
3. Check Your Bank:
   • Refunds are paid directly to your nominated bank account
   • HMRC will send a letter confirming the refund amount

Common Reasons for Overpayment:

• Incorrect tax code (especially common when changing jobs)
• Not updating HMRC about changes in circumstances
• Overpayment of tax on bonuses or commission
• Not claiming work-related expenses you’re entitled to
• Emergency tax codes being applied incorrectly

Important Considerations:

• You have until 5 April 2025 to claim a refund for 2019-2020
• HMRC will pay interest on refunds (currently 0.5%) if the delay is their fault
• Keep copies of all correspondence and calculations
• If HMRC refuses your claim, you can appeal within 30 days

What to Include in Your Claim:

• Your full name and address
• National Insurance number
• UTR (if self-employed)
• Details of why you believe you’ve overpaid
• Supporting documents (P60, P45, expense receipts)
• Your bank details for the refund

If you’re unsure about making a claim yourself, consider using a tax professional, especially for complex cases involving multiple income sources or previous years.