Starting a business while holding down a full-time job isn’t easy — but it’s possible, and it’s how many successful entrepreneurs in Ireland begin.
Whether it’s a passion project, a side hustle, or the first steps to something bigger, here’s how to do it smart, legally, and without burnout.
1. Start With a Clear Plan
✏️ Define your idea – What do you sell? Who is it for? Why would someone choose you?
✏️ Keep it simple – You don’t need a 30-page plan. A one-page strategy with goals, costs, and customers is a great start.
✏️ Start small – Pick a product or service you can deliver part-time while you test the waters.
💡 Example: You might offer bookkeeping services to freelancers on evenings and weekends, before scaling into a full agency.
2. Choose the Right Structure
📄 Sole trader – Easy to set up, taxed as personal income, minimal paperwork.
📄 Limited company – More admin, more tax benefits, better suited to long-term growth.
📄 Get advice early – A quick consultation with an accountant can save you headaches down the line.
💡 Example: Most side hustlers start as sole traders — but if income grows past €40k+, it may be worth forming a LTD company.
3. Register & Stay Compliant
🗂️ Revenue registration – Register for income tax as a sole trader, or for corporation tax as a company.
🗂️ Use a business name – You can trade under a name, but register it with the CRO.
🗂️ Track your finances – Even small businesses need proper records for tax season.
💡 Example: If you earn over €85,000 from goods or €42,500 from services in 12 months, you must register for VAT.
4. Respect Your Day Job
🕒 Check your contract – Many employers have clauses against side businesses, especially in the same industry.
🕒 Keep work and business separate – Use your own laptop, email, and workspace.
🕒 Stick to evenings/weekends – Never work on your business during company time.
💡 Example: A software developer launching a tech product should be mindful of non-compete clauses in their employment agreement.
5. Manage Your Time Like a Boss
⏰ Block out focused time – Even 60 minutes a night can build momentum.
⏰ Avoid perfectionism – Get it launched, then improve it.
⏰ Automate what you can – Use online tools for invoicing, scheduling, and bookkeeping.
💡 Example: Use tools like Google Calendar, Trello, or Notion to map out your week and stick to your business goals.
6. Test Before You Leap
📊 Validate your offer – Can you get 3–5 paying clients?
📊 Track income – Is it growing month to month?
📊 Plan your exit – Build a financial runway (ideally 3–6 months of savings) before leaving your job.
💡 Example: When your side hustle earns 70–100% of your day job salary consistently, it may be time to go full-time.
Final Thoughts
Launching a business while working full-time isn’t easy — but with structure, focus, and the right guidance, it’s more achievable than ever.
At Gahan Accountants, we help part-time entrepreneurs:
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Register their businesses
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Stay tax compliant
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Plan for a full-time future
✅ To officially get started, you’ll need to register your business with Revenue — https://www.revenue.ie/en/starting-a-business/index.aspx
📞 Thinking of Starting Something?
Book a call with Gahan Accountants today — https://gahanaccountants.ie/pages/contact