Navigating Taxes: A Beginner's Guide

Updated
Jul 3, 2025 3:25 PM
Written by Nathan Cafearo
Discover how UK taxes work in plain English, why they matter, practical tips, and easy explanations of key terms to help you feel confident and in control of your personal finances.

I am a business

Looking to offer finance options to my customers

Find out more

Apply for a loan

I'd like to apply for a personal loan

Apply now

Who Will Benefit from This Guide?

If you’ve ever scratched your head at tax forms or wondered what PAYE actually means, you’re in the right place. Whether you’re entering the workforce, starting a side hustle, or simply want to feel more in control come tax season, this guide’s for you. We’re here to make taxes a lot less mysterious, no matter where you’re starting from.

What Do We Mean by Taxes?

Put simply, taxes are sums of money we pay to the government. In the UK, these help fund everything from schools and hospitals to the nation’s roads and more. You might see them as deductions on your payslip or as payments when you fill in an online return. At their heart, taxes are a shared contribution to keep our society running.

Why Should You Care About Taxes?

Let’s face it: taxes might not be anyone’s favourite topic. But understanding them has some seriously great benefits:
  • Avoid surprises: No one likes an unexpected bill from HMRC.
  • Spot mistakes: Employers and tax codes aren’t always perfect—catching errors can save you money.
  • Plan better: Knowing what you’ll bring home helps with budgeting and big life decisions.
  • Peace of mind: Demystifying taxes can lift a weight off your shoulders.
  • How Do Taxes Work in Plain English?

    Here’s what you need to know:

    1. Earning money: This could be from employment, self-employment, savings, or investments. 2. Tax-free allowance: Everyone gets a personal allowance (currently £12,570 for most people) before they start paying income tax. 3. PAYE: If you’re employed, your employer handles tax through PAYE (Pay As You Earn), sending what you owe directly to HMRC before it reaches your account. 4. Self-Assessment: If you’re self-employed or have other untaxed income, you’ll fill out an annual form and pay what you owe separately.

    It’s about balancing what you earn with what you owe—and paying tax only when you cross certain thresholds.

    A Real-Life Example

    Picture this: Sam has a full-time job earning £25,000 a year. Here’s how Sam’s tax works:
  • The first £12,570 Sam earns is tax-free (personal allowance).
  • The next £12,430 (taking them up to £25,000) is taxed at 20% (basic rate).
  • Rough calculation:

    Sam’s Income Tax Rate Tax Paid
    First £12,570 0% £0
    Next £12,430 20% £2,486
    Sam’s employer deducts £2,486 in tax over the year. National Insurance is separate, but follows a similar logic.

    Jargon Buster: Key Terms Demystified

  • HMRC: Her Majesty’s Revenue and Customs, the UK’s tax authority.
  • PAYE: Pay As You Earn—tax taken straight from your salary.
  • Self-Assessment: The online or paper process for reporting income not taxed at source.
  • Personal Allowance: The amount you can earn each year before paying tax.
  • Tax Code: A code on your payslip that tells your employer how much tax to deduct.

Frequently Asked Questions

Do I need to file a tax return if I’m employed? Generally no—your employer handles this. But if you have income outside your job, you may need to file one.

What if I get something wrong on my tax return? Don’t panic. HMRC lets you correct errors. The sooner you fix it, the better.

Can I get help if I’m stuck? Absolutely! HMRC offers support by phone and online. Lots of charities and community organisations also provide free advice.

Ready to Take Control of Your Taxes?

Understanding your taxes is a big step toward mastering your personal finances. Want more tips on budgeting, saving, or borrowing smarter? We’re here to help.

Check out our latest guides at Kandoo and take the next step toward financial confidence.

I am a business

Looking to offer finance options to my customers

Find out more

Apply for a loan

I'd like to apply for a personal loan

Apply now
Our Merchants

Some of our incredible partners

Our partners have consistently achieved outstanding results. The numbers speak volumes. Be one of them!