If you’ve ever looked at a payslip and wondered where a chunk of your salary went, you’re not alone. Take-home pay — what actually lands in your bank account after every deduction — is one of those things that surprises people far more often than it should. A £35,000 salary doesn’t become £35,000 in your pocket, and the gap can feel significant if you’ve never had it clearly explained.

We find this comes up constantly with clients who are new to employment, have just received a pay rise, or have changed jobs and noticed their net pay looks different from what they expected. In most cases, the deductions are working exactly as they should. But not always — and knowing the difference matters.

Here’s how we think about it, with the current 2026/27 figures so you can sense-check your own situation.

Before you receive a penny, four things typically come off your gross salary. Understanding each one makes the maths far less mysterious.

Income tax

The personal allowance for 2026/27 is £12,570 — earnings up to that threshold attract no income tax at all. Above that, the basic rate of 20% applies on earnings between £12,571 and £50,270. Once you pass £50,270, the higher rate of 40% kicks in, right up to £125,140. Above that threshold, the additional rate sits at 45%. Most employees in the UK pay basic rate tax only, but a significant number of professionals and contractors tip into the higher rate bracket without necessarily realising they’re close.

National Insurance

On top of income tax, employees also pay National Insurance contributions. For 2026/27, the rate is 8% on earnings between £12,570 and £50,270, and 2% on anything above that. This is separate from your employer’s NI — what you see on your payslip is purely the employee contribution.

Workplace pension

If you’ve been auto-enrolled into your employer’s pension scheme, the minimum employee contribution is 5% of qualifying earnings. This is deducted before your net pay is calculated. It’s your money going into your pension, not a tax — but it does reduce what hits your bank account each month.

Student loan repayments

If you have a student loan, repayments are collected through payroll once you earn above the relevant threshold. For 2026/27, the thresholds range from £21,000 for postgraduate loans up to £33,795 for Plan 4. The repayment rate is 9% of earnings above the threshold (6% for postgraduate loans). If you’re on multiple plans simultaneously, both deductions apply.

Even when the rates above are applied correctly, a few common scenarios can mean your take-home salary comes out lower than a salary calculator suggested. The most frequent culprits we see are emergency tax codes and switching jobs mid-year.

Emergency tax codes

When HMRC doesn’t have enough information about your income — typically when you start a new job and your previous employer hasn’t submitted the right information — they assign an emergency tax code. Codes like 1257L W1 or 1257L M1 are non-cumulative, which means your employer treats each pay period in isolation rather than taking into account how much tax you’ve already paid across the year. The result can be that you pay significantly more tax than you should in those early months. HMRC will usually correct this automatically once they receive the right information, but it’s worth checking your payslip if something looks off.

Salary sacrifice arrangements

Some employers offer benefits — electric vehicle schemes, enhanced pension contributions, childcare vouchers — through salary sacrifice. These reduce your gross pensionable and taxable pay, which can actually improve your take-home in some cases. But if you’ve recently enrolled in one of these schemes without fully understanding it, your net pay will have dropped. It’s worth checking your contract and benefits documentation.

Benefits in kind

If your employer provides a company car, private medical insurance, or other taxable benefits, HMRC adjusts your tax code to collect the tax on those benefits through your payslip. Your tax code will have a lower number than 1257, reducing your effective personal allowance and increasing the amount of tax deducted each month.

You can find your current tax code on your payslip, through your HMRC online account, or via the HMRC app. If it doesn’t look right, it’s usually straightforward to query with HMRC directly.

It’s worth putting pay into a broader context, particularly if you’ve recently had a pay review and feel like you’re no better off. According to the Office for National Statistics, average weekly earnings grew by around 4.1% in the year to March 2026 on a total pay basis — reasonable headline growth. But when you strip out inflation and look at real-terms growth, the picture is more subdued. Regular pay grew by just 0.1% to 0.3% in real terms depending on which inflation measure you use.

In practical terms, that means many employees who received a pay rise this year are roughly keeping pace with the cost of living rather than genuinely pulling ahead. If your gross pay went up but your take-home pay feels the same or only marginally better, that’s partly the tax system at work — and partly the fact that wage growth has been broadly matching inflation rather than exceeding it.

For business owners thinking about salary structures, this context matters too. A salary increase that pushes an employee from the basic rate band into the higher rate band is worth modelling carefully before it’s agreed — for both the employee and the employer’s NI cost. We help owner-managed businesses think through pay calculation and structure as part of our advisory work, precisely because the net effect on take-home is rarely straightforward.

Everything above applies to employees paid through PAYE. If you’re self-employed, a contractor, or operating through an umbrella company, the mechanics of take-home pay work quite differently — and in our experience, this is where the biggest surprises tend to occur.

Sole traders don’t have tax deducted at source. Instead, they pay income tax and Class 4 National Insurance through the Self Assessment system, typically in two payments on account each year plus a balancing payment. If you’ve been pocketing everything you earn without setting money aside for tax, the January bill can be a nasty shock.

Contractors working through a limited company have more flexibility — they can take a combination of salary and dividends, which can be more tax-efficient than a straight salary. But it requires proper planning to get right, and the rules around IR35 add a layer of complexity for those contracting through agencies or large end clients.

Contractors paid through an umbrella company are treated as employees of that umbrella for tax purposes, which means PAYE deductions apply — but so does the employer’s National Insurance, which is often charged back through the contractor’s pay rate. Many contractors are surprised to discover that their gross contract rate is significantly higher than their actual take-home once all deductions are factored in.

If you’re unsure how your working arrangement affects your take-home, it’s the kind of thing worth working through with an accountant rather than guessing from a generic calculator.