Loading profile data...

Loading profile data...

BLOG

VAT, PAYE and PRSI in Ireland: What changes as your business grows

VAT, PAYE and PRSI in Ireland: What changes as your business grows
Amelia McNamara
Amelia McNamaraGraceful Accounting Ltd

Posted: Mon 2nd Mar 2026

Last updated: Mon 2nd Mar 2026

6 min read

If you're running a business and making money, you reach a point where things like VAT, PAYE and PRSI come into play.

Not because you've done anything wrong, and not because Revenue is "after you". But because your business is growing.

The problem is, no-one really explains this stuff properly, so people either panic… or keep themselves small to avoid it.

Let's slow it all down and explain it simply.

First, let's talk about VAT (the one everyone worries about)

VAT (value added tax) is a tax some businesses must charge on top of their prices and give to Revenue.

You don't register for VAT just because you feel like it. You register when your business reaches a certain size.

The VAT thresholds (Ireland)

You need to register for VAT when your yearly turnover goes over:

This is about sales, not profit – and how much money you have coming in.

Important change – how VAT thresholds are measured

This part has changed in recent years and catches people out. VAT thresholds are now based on the calendar year (January to December).

They used to be looked at on a rolling 12-month basis, but that's no longer the case. Revenue now looks at what you earn within the year, and whether it's clear you're heading for the threshold.

So if your income is steadily increasing and it's obvious you'll pass the limit before year-end, you're expected to register before you actually hit it.

"I don't want to register for VAT, so I'll just stay under the threshold"

This is where mindset comes in. I see business owners doing these things all the time:

  • Turning work down

  • Capping income

  • Not raising prices

  • Staying busy but underpaid

All to avoid VAT.

Don't see VAT as a punishment. In fact, it's a sign that your business is moving into its next stage.

Yes, you must plan for it properly. Yes, you'll need to look at your pricing. But staying small to avoid VAT often causes more stress and burnout than growth ever would.

A quick VAT myth to clear up

You can't register for VAT just so you can claim VAT back on expenses.

Revenue will usually want to see that:

  • you're actively trading (or about to start)

  • your business is real

  • you have customers or contracts

There's more to registering for VAT than just filling in a form. Revenue may ask for proof of trading, bank details, a business address or a lease.

VAT returns (the practical bit)

Once you're registered:

  • VAT returns are usually every two months to start

  • the VAT you collect is not your money – you need to set it aside

If you make a small mistake on a VAT return, you can usually fix it in the next return (up to €6,000) without notifying Revenue.

 

A woman's hands holding a pen and a black calculator 

PAYE and PRSI – when they apply

PAYE (Pay As You Earn) and PRSI (Pay Related Social Insurance) apply when you start paying employees. That includes:

  • employees

  • directors (yes, even yourself if you have a company)

  • family members on wages

Once you pay someone through payroll, you need to be registered for PAYE and PRSI and report payroll to Revenue in real time.

This often surprises people who set up a company and don't realise that paying themselves means payroll, even if they're the only person in the business.

VAT, PAYE and PRSI – how do you actually register?

Once you know you need to register, the steps are simpler than you might expect.

You register online through the Revenue Online Service (ROS), whether you're doing it for VAT, PAYE or PRSI.

You'll answer some basic questions about your business, like:

When Revenue receive your application

They may ask for supporting documents. This isn't to catch you out, but to confirm that your business is genuine.

They might ask for:

  • proof of trading or contracts

  • bank details

  • proof of address

  • a lease or rental agreement

Revenue will review the application. Sometimes, they're quick to approve. Other times, they come back with questions. This is normal and doesn't mean there's a problem.

Once they've approved your application, you'll get confirmation and filing dates. This letter will tell you:

  • when VAT or payroll starts

  • when returns are due

  • how often you need to file

Conclusion

If your business is growing, or you can see it heading that way, getting advice before you hit thresholds makes everything calmer.

That way, you get to plan your pricing, protect your cash flow and grow without fear.

And most importantly, you stop making decisions from a place of panic or avoidance.

With the right set-up, registration is just another admin step in a growing business, not something to worry about.

 

Person using a calculator and writing notes beside a laptop. Text: "Small Business Taxes in Ireland - Read the Guide."

Irish taxes made simple

VAT, PAYE, PRSI – what they mean, when you need them and what to do next. Read our tax guide now

Amelia McNamara
Amelia McNamaraGraceful Accounting Ltd
Amelia McNamara has over 16 years of experience in accounting roles across multiple sectors, having worked for small family-run businesses and large multinationals. In 2022, Amelia faced a pivotal moment in her career. With the arrival of her first child, she was confronted with the choice between her professional aspirations and the precious time she could spend with her daughter. Having experienced the loss of her mother at a young age, she understood the value of family time. This profound realization led her to step away from the security of her corporate job and embark on the challenging yet rewarding journey of entrepreneurship, founding her own business to create a life that aligned with her values. Amelia's professional journey is marked by significant achievements. She is Ireland’s first Certified Profit First Professional, a testament to her expertise in financial management. She is the proud owner and operator of Graceful Accounting, a bespoke bookkeeping practice she founded to assist business owners with their finance functions. This innovative approach to accounting has been recognized, with Graceful Accounting being named a finalist in the Irish Xero awards category “Emerging Firm of the Year” in its very first year. Originally from London, Amelia lives in Cork with her husband and two daughters. Amelia is a qualified Accounting Technician with a bachelor's degree in accounting. In her spare time, she enjoys reading, cooking, and travelling.

Get business support right to your inbox

Subscribe to our newsletter to receive business tips, learn about new funding programmes, join upcoming events, take e-learning courses, and more.

Start your business journey today

Take the first step to successfully starting and growing your business.

Join for free