When you accept a job offer, the salary is usually quoted before deductions. What reaches your bank account is lower. Understanding the gap helps you compare offers, plan a budget and avoid a common myth: that earning more can leave you with less money.
Gross Pay and Net Pay
Gross pay is your total earnings before any deductions. Net pay, also called take-home pay, is what you receive after deductions. Common deductions include:
- Income tax, usually withheld by your employer.
- Social security or national insurance contributions.
- Pension or retirement contributions.
- Health insurance premiums.
- Student loan repayments or other statutory deductions.
The rules and rates vary widely by country, so always check your own tax authority's guidance. The structure, however, is similar in most places.
How Progressive Tax Brackets Work
Most countries use progressive income tax. Your income is divided into slices, and each slice is taxed at its own rate. Only the income inside a bracket is taxed at that bracket's rate, not your whole income.
Here is a simplified, made-up system: 10% on the first 10,000, 20% on income from 10,000 to 40,000, and 30% on anything above 40,000. If you earn 55,000:
- First 10,000 at 10% = 1,000.
- Next 30,000 at 20% = 6,000.
- Remaining 15,000 at 30% = 4,500.
- Total tax = 11,500.
Your take-home pay before other deductions is 55,000 − 11,500 = 43,500.
Marginal vs Effective Tax Rate
- The marginal rate is the rate on your next unit of income. In the example it is 30%.
- The effective rate is your total tax divided by your total income: 11,500 ÷ 55,000 = about 20.9%.
The effective rate is what you actually pay on average. The marginal rate tells you what happens when your income changes. If you receive a 1,000 raise, you pay 300 of it in tax and keep 700. You never lose money by crossing into a higher bracket, because only the extra income is taxed at the higher rate. The idea that a raise can reduce your pay comes from a misunderstanding of this system, although some benefits and credits that phase out as your income rises can make the real marginal rate higher than the bracket rate.
Pre-Tax and Post-Tax Deductions
Some deductions, such as contributions to certain pension plans, reduce your taxable income. A 1,000 pre-tax contribution at a 30% marginal rate lowers your tax by 300, so the net cost to you is 700. Other deductions, such as many insurance premiums, come out of money that has already been taxed. Check how each item on your pay slip is treated.
Reading Your Pay Slip
A typical pay slip lists gross pay for the period, each deduction, any benefits or allowances, and net pay. Check the following:
- Your tax code or withholding status is correct, which is a common source of overpayment.
- Pension contributions match your agreement.
- Year-to-date totals add up across months.
- Overtime and bonuses are included at the right rate.
If something looks wrong, contact your payroll team promptly. Errors are usually easier to fix early.
Comparing Two Job Offers
Compare offers using net pay and benefits, not only gross salary. Add the value of employer pension contributions, health cover, bonuses and paid leave, and subtract extra costs such as commuting. If the offers are in different countries or tax systems, compare take-home pay after local taxes and local living costs. Our guide to converting hourly pay to a salary helps with the first step.
Self-Employed Income
If you work for yourself, no one withholds tax for you. You usually pay income tax and social contributions in instalments or in an annual return, so it is wise to set aside a percentage of every payment, often 25% to 35% depending on your country and income, in a separate account. A tax adviser can tell you the right figure for your situation.
Your Next Step
Take your latest pay slip, write down gross pay, every deduction and net pay, and calculate your effective rate by dividing total tax by gross pay. Then use our Salary calculator to model different gross amounts. This article is general information, not tax advice.