Find P60 Statistics Calculator

Compare figures from two P60s to understand changes in your pay, tax, and National Insurance over two tax years.

Compare Two P60s

Year 1 (e.g., Previous Tax Year)

Year 2 (e.g., Current/Latest Tax Year)

Results copied!

Comparison Table

Metric	Year 1 (£)	Year 2 (£)	Change (£)	Change (%)
Total Pay	35000.00	38000.00	3000.00	8.57
Tax Deducted	4000.00	4500.00	500.00	12.50
NI Deducted	2500.00	2800.00	300.00	12.00
Net Pay	28500.00	30700.00	2200.00	7.72
Effective Tax Rate (%)	11.43	11.84	–	–
Effective NI Rate (%)	7.14	7.37	–	–

Table comparing key figures from your P60s for the two years.

Visual Comparison

Bar chart comparing Total Pay, Tax, NI, and Net Pay across the two years.

What is a P60 Statistics Calculator?

A P60 Statistics Calculator is a tool designed to help you analyze and compare the figures from two separate P60 documents. Your P60 is an important statement issued by your employer at the end of each tax year (5th April) in the UK, summarizing your total earnings and the deductions made for Income Tax and National Insurance (NI) contributions during that tax year.

This calculator allows you to input the key figures – total pay, tax deducted, and NI deducted – from two different P60s (for example, from the last tax year and the year before) and see the differences, both in absolute amounts (£) and as percentage changes. It helps you understand how your gross pay, tax, NI, and net pay have changed between the two periods, and calculates effective tax and NI rates. This is useful for personal financial review, understanding the impact of pay rises or tax changes, and for comparing your earnings year-on-year.

Anyone who receives a P60 from their employer can use the P60 Statistics Calculator to gain insights into their earnings and deductions over time. It’s particularly useful for employees who have seen changes in their salary, tax code, or employment status between tax years.

A common misconception is that the P60 itself is a calculator; it is not. The P60 is a statement of fact for a given tax year. The P60 Statistics Calculator is a tool that *uses* data from P60s to derive comparative statistics.

P60 Statistics Calculator Formula and Mathematical Explanation

The calculations performed by the P60 Statistics Calculator are based on simple arithmetic and percentage change formulas:

1. Net Pay Calculation: For each year, Net Pay is calculated as:
   
   Net Pay = Total Pay - Tax Deducted - NI Deducted
2. Change in Amount (£): For each metric (Total Pay, Tax, NI, Net Pay), the change between Year 2 and Year 1 is:
   
   Change (£) = Value (Year 2) - Value (Year 1)
3. Percentage Change (%): The percentage change is calculated as:
   
   Percentage Change (%) = ((Value (Year 2) - Value (Year 1)) / Value (Year 1)) * 100
   
   If the Value (Year 1) is zero, the percentage change is either shown as infinite (if Value 2 is non-zero) or 0% (if Value 2 is also zero), but for P60 figures, Year 1 values are typically non-zero if employment occurred.
4. Effective Tax/NI Rate (%): The effective rate of tax or NI is calculated as:
   
   Effective Rate (%) = (Deduction / Total Pay) * 100

Here’s a breakdown of the variables:

Variable	Meaning	Unit	Typical Range (from P60)
Total Pay	Gross pay before any deductions	£ (GBP)	£0 – £1,000,000+
Tax Deducted	Income Tax paid via PAYE	£ (GBP)	£0 – £500,000+
NI Deducted	National Insurance contributions	£ (GBP)	£0 – £100,000+
Net Pay	Take-home pay after tax and NI	£ (GBP)	£0 – £700,000+

Practical Examples (Real-World Use Cases)

Let’s look at two examples using the P60 Statistics Calculator.

Example 1: Salary Increase

Sarah received her P60 for 2022/23 showing Total Pay £40,000, Tax £5,000, NI £3,000. Her P60 for 2023/24 shows Total Pay £45,000, Tax £6,000, NI £3,500 after a pay rise.

• Year 1: Total Pay=40000, Tax=5000, NI=3000 => Net Pay = 32000
• Year 2: Total Pay=45000, Tax=6000, NI=3500 => Net Pay = 35500

The P60 Statistics Calculator would show:

• Change in Total Pay: £5000 (12.5%)
• Change in Tax: £1000 (20%)
• Change in NI: £500 (16.67%)
• Change in Net Pay: £3500 (10.94%)

Sarah can see her net pay increased by almost 11%, even though her gross pay increased by 12.5%, due to higher tax and NI on the increased amount.

Example 2: Change in Tax Code

David’s P60 for 2022/23 showed Total Pay £30,000, Tax £3,000, NI £2,000. For 2023/24, his pay was the same £30,000, but his tax code changed, resulting in Tax £3,500 and NI £2,000 (assuming NI rates/bands didn’t change impact him much at this level).

• Year 1: Total Pay=30000, Tax=3000, NI=2000 => Net Pay = 25000
• Year 2: Total Pay=30000, Tax=3500, NI=2000 => Net Pay = 24500

The P60 Statistics Calculator would show:

• Change in Total Pay: £0 (0%)
• Change in Tax: £500 (16.67%)
• Change in NI: £0 (0%)
• Change in Net Pay: -£500 (-2%)

David sees his net pay decreased by 2% despite no change in gross pay, due to the increased tax deduction likely from a tax code adjustment.

How to Use This P60 Statistics Calculator

1. Gather Your P60s: You’ll need the P60 forms for the two tax years you want to compare.
2. Identify Figures: On each P60, find the ‘Total for year’ figures for pay, tax, and (if shown separately) National Insurance contributions. Sometimes NI is included in tax; look for separate NI figures if available or check your last payslip for the year.
3. Enter Year 1 Data: Input the Total Pay, Tax Deducted, and NI Deducted from the earlier P60 into the “Year 1” fields of the P60 Statistics Calculator.
4. Enter Year 2 Data: Input the corresponding figures from the later P60 into the “Year 2” fields.
5. View Results: The calculator will instantly update, showing the primary result (Change in Net Pay %), intermediate results (changes in pay, tax, NI), the comparison table, and the chart.
6. Analyze the Output: Look at the percentage changes to understand the relative difference in your earnings and deductions. The table provides a clear side-by-side comparison, and the chart visualizes these changes.

Use the results to see if the changes align with your expectations (e.g., after a pay rise or change in working hours). If there are large unexplained differences, you might want to review your tax code or contact HMRC or your employer. For more on tax codes, see our Tax Code Checker.

Key Factors That Affect P60 Statistics Calculator Results

Several factors can influence the figures on your P60s and thus the results from the P60 Statistics Calculator:

• Salary Changes: Pay rises, promotions, or changes in contracted hours directly impact your Total Pay.
• Tax Code Changes: Your tax code determines your tax-free personal allowance. Changes to it (due to benefits, under/overpayment from previous years, etc.) affect the Tax Deducted.
• National Insurance Rates and Thresholds: The government can change NI contribution rates and the earnings thresholds at which they apply, affecting NI Deducted.
• Bonuses or Overtime: One-off payments like bonuses or significant overtime in one year but not the other will alter Total Pay and consequently deductions.
• Employment Changes: Starting or leaving a job mid-year, or having multiple jobs, can affect the year-end figures on a specific P60.
• Pension Contributions: The method of pension contribution (e.g., net pay arrangement vs relief at source) can affect the taxable pay figure.
• Statutory Payments: Receiving Statutory Sick Pay, Maternity Pay, etc., will be included in your pay but might be at different rates than your usual salary.

Understanding these factors helps interpret the “why” behind the changes shown by the P60 Statistics Calculator.

Frequently Asked Questions (FAQ)

What is a P60?

A P60 is a certificate your employer gives you at the end of each tax year (by 31st May) showing your total pay and the deductions for tax and National Insurance for that year.

Why are the figures on my P60 different this year?

Differences can be due to pay changes, tax code changes, NI rate changes, bonuses, or changes in hours worked. The P60 Statistics Calculator helps quantify these changes.

What if I have more than one P60 for the same year?

If you had multiple jobs and didn’t give your new employer your P45 from the old one, or worked two jobs at once, you might get multiple P60s. For a full picture, you’d need to combine the figures carefully, but this calculator is best used for comparing one main employment’s P60 year-on-year.

Where do I find the figures on my P60?

Look for the sections showing “Total pay in year” or similar, “Tax deducted in year”, and National Insurance contributions for the year.

Can I use this P60 Statistics Calculator for self-employment income?

No, P60s are for employed individuals under PAYE. Self-employed individuals manage their tax via Self Assessment and don’t receive P60s for self-employment income.

What if my P60 looks wrong?

If you think the figures on your P60 are incorrect, contact your employer’s payroll department first. If you still have concerns, you may need to contact HMRC.

Does this calculator tell me if I’m due a tax refund?

No, the P60 Statistics Calculator only compares figures. To see if you might be due a refund, you’d need to compare the tax paid with what was due, possibly using a UK Tax Calculator or by checking your Personal Tax Account with HMRC.

Why did my net pay change by a different percentage than my gross pay?

This is common because tax and NI are often progressive or have different bands and rates. A pay rise can push more of your income into higher tax or NI brackets, meaning deductions increase at a faster rate than gross pay. Our Income Tax Bands page has more details.