Gross vs Net Income Explained: What Really Comes Out of Your Pay

Gross income and net income are two of the most frequently confused terms in personal finance. They sound technical, but the difference between them decides how much you can actually spend, save and borrow. If you have ever been surprised that your first pay cheque was far smaller than the salary in your contract, the gap between gross and net is the reason.

This guide explains both terms, lists every common deduction, shows dated examples for the United States and the United Kingdom, and gives you an interactive breakdown so you can see where your own money goes.

What is gross income?

Gross income is your total earnings before any deductions. For an employee it includes base salary or hourly wages plus overtime, bonuses, commission, tips and taxable allowances. It is the figure on job adverts, employment contracts and most loan applications.

For self-employed people, gross income usually means total business revenue, while the closer equivalent to an employee's salary is profit after business expenses. Lenders and tax authorities often ask specifically which figure you mean, so be precise.

What is net income?

Net income, or take-home pay, is the money left after all deductions are taken from gross pay. It is what arrives in your bank account and the number your budget should be built on. The simple formula is:

Net income = Gross income − taxes − social contributions − pre-tax deductions − post-tax deductions.

Where the money goes: common deductions

Deductions fall into two groups: mandatory ones set by law and voluntary ones you choose.

Mandatory deductions

• Income tax: national, and sometimes regional or city, tax on earnings. Most systems are progressive, with higher rates on higher slices of income.
• Social security contributions: these fund state pensions, unemployment benefits and healthcare. In the US employees pay 6.2% for Social Security (up to an annual wage cap) and 1.45% for Medicare. In the UK employees pay National Insurance at 8% on earnings between the primary threshold and upper limit, and 2% above it.
• Court-ordered deductions: child support or wage garnishments, where applicable.

Voluntary or employer-scheme deductions

• Retirement contributions: 401(k) plans in the US or workplace pensions in the UK. UK auto-enrolment requires a minimum of 8% of qualifying earnings in total, with at least 3% paid by the employer.
• Health, dental and life insurance premiums.
• Flexible spending, commuter or childcare schemes.
• Union fees, charitable payroll giving and share-purchase plans.

Pre-tax versus post-tax deductions

The order matters. Pre-tax deductions, such as traditional 401(k) contributions or UK pension contributions made through net pay or salary sacrifice arrangements, are taken before income tax is calculated, so they reduce your tax bill. Post-tax deductions, such as Roth contributions or some insurance premiums, come out after tax. A $100 pre-tax contribution might reduce your take-home pay by only $78 if your marginal income tax rate is 22%, because you save $22 in tax.

See your own breakdown

Enter your pay and approximate deduction rates below. The bars show what share of gross pay each deduction takes and what is left for you.

Example: United States, tax year 2026

Consider a single filer earning $60,000 in salary with no other income and no pre-tax deductions. For 2026 the federal standard deduction for a single filer is $16,100, so taxable income is $43,900. Applying the 2026 brackets, 10% on the first $12,400 and 12% on the rest:

That is roughly $4,199 per month instead of the $5,000 gross figure. State income tax, local taxes and benefit premiums would reduce the figure further; several states charge no income tax at all, while others charge several percent.

Example: United Kingdom, tax year 2026/27

Now consider an employee in England earning £35,000. The Personal Allowance is £12,570, so £22,430 is taxed at the 20% basic rate. National Insurance is charged at 8% on earnings above the £12,570 primary threshold. Assume a 5% employee pension contribution on qualifying earnings for simplicity of £1,375.

In practice a pension paid through relief at source or salary sacrifice changes the tax figures slightly, which is why payroll software should be used for exact numbers. The overall shape is what matters: about 78% of gross pay reaches the employee.

Why the difference matters

Budgeting

Every budgeting method, including the popular 50/30/20 rule, should be applied to net income. Applying percentages to gross income overestimates what you can spend on needs and wants.

Borrowing

Lenders often quote affordability using gross income, for example a maximum debt-to-income ratio of 36% of gross monthly pay. Because repayments come from net income, a loan that looks affordable on paper can feel tight in reality. Check repayments against your net pay before borrowing.

Comparing job offers

Two salaries can produce very different take-home pay once you account for location, pension matching and benefit costs. An offer with a slightly lower salary but generous employer pension contributions and free health cover may leave you better off.

Raises

A raise increases gross pay by the full amount, but net pay rises by less because extra income is taxed at your marginal rate. Our guide to marginal and effective tax rates includes a raise simulator that shows exactly how much of a raise you keep.

Gross and net for the self-employed

Freelancers and small business owners receive gross payments with nothing withheld. That means they must set money aside for income tax and social contributions themselves, often paying in instalments during the year. A practical habit is to move a fixed share of every payment, commonly 20% to 30% depending on your country and income, into a separate tax account the day it arrives. This prevents an unaffordable bill at the end of the year.

Common mistakes to avoid

• Budgeting from your contract salary rather than your bank deposits.
• Forgetting annual items such as benefit enrolment changes, which can alter net pay in January.
• Assuming a bonus will be taxed at your usual rate; withholding on bonuses can differ.
• Ignoring the tax savings from pre-tax retirement contributions when deciding how much to save.
• Not checking your payslip. Incorrect tax codes or missing allowances are common and can cost hundreds per year.

How to estimate your net income quickly

1. Start with your annual gross pay.
2. Subtract pre-tax deductions such as pension contributions.
3. Estimate income tax using your country's allowance and brackets.
4. Subtract social security contributions.
5. Subtract post-tax deductions.
6. Divide by your number of pay periods.

Then compare the result with an actual payslip. If the two differ by more than a few percent, look for a deduction you missed.

Key takeaways

Gross income is what you earn; net income is what you keep. The gap is made up of taxes, social contributions, retirement savings and benefits, and it often equals a fifth to a third of your pay. Plan your spending, saving and borrowing around net income, and use the breakdown above or our salary calculator to understand where every part of your pay goes.