Self-employed alongside salaried employment: is this possible?

More and more people are combining a permanent job with self-employment. This combination offers opportunities: you keep the security of a salary while getting the freedom to choose your own assignments. However, there are also points of attention, such as extra administration, taxes and consultation with your employer. In this article, you can read how to handle this smartly and what to look out for.
Self-employed alongside salaried employment

Self-employed alongside salaried employment 

If you want to become self-employed alongside your permanent job, you benefit from the best of both worlds. You keep your salary and employee rights, while at the same time you can try out how entrepreneurship works in practice. It does require good planning and clear agreements so that you avoid getting caught up with time or obligations. Below, we list the advantages and disadvantages for you.

Advantages and disadvantages  

Being self-employed alongside salaried employment has attractive advantages, but also some distinct disadvantages. This overview will help you see both sides quickly. 

Advantages 

Cons 

Financial security  

Busy schedule

Freedom and growth 

Additional administration

Employee benefits

Fewer tax breaks

Experience and network 

Bringing employers along  

Agreements with employer 

First, check whether your employment contract contains a prohibition on other work or a non-compete clause. Then discuss your plans openly with your employer and emphasise that your work will not suffer and will not constitute competition. An employer may prohibit a side job only with a good reason, but you must report it. Put agreements in writing, for example about permission or working hours. With clear communication, combining is usually not a problem. 

 

Tax issues self-employed and salaried 

Your wages and business profits are taxed together in Box 1 of income tax. So you pay tax on your total income at the normal rates - not double. However, as an entrepreneur, you will have to take care of additional matters yourself. Think about filing your VAT return and setting money aside for tax, so you will not be faced with any surprises at the end of the year. 

VAT return (sales tax) 

As an entrepreneur, you need to make quarterly VAT return do and charge VAT on your invoices. Even if you have no turnover that quarter, you still have to file a return (zero). Don't forget this, as filing late can result in a fine. Make a note of the deadlines in your diary. 

Small business scheme (KOR) 

Does your turnover remain below €20,000 per year? Then you can opt for the small entrepreneur scheme (KOR). Je do not then have to charge or remit VAT and you do not have to file VAT returns. That saves on administration. 

Income Tax 

On your wages, your employer pays wage tax. On the profit from your business, you pay income tax return via the annual tax return. Your wages and profits will be added up, so your total income may fall into a higher tax bracket. Therefore, immediately set aside a part of your self-employment income (e.g. 30% from each invoice) for the tax payable, so that you don't end up tight later. 

Income tax calculation 

Use our calculation tool right away to see how much income tax you have to pay. Enter your salary and profit and you will immediately see your total tax, including deductions and tax credits. This way you will know how much you need to set aside and avoid surprises. 

Deductions 

If you spend at least 1,225 hours a year on your business, you are entitled to additional deductions. You can then use the self-employed deduction (and as a starter also the start-up deduction, which amounts to a big cut in your taxable profits. In addition, for all entrepreneurs, the SME profit exemption applies, keeping 12.7% of your profit tax-free. 

 

Insurance and pensions 

In salaried employment, you are insured for disability and build up a pension; as a self-employed person, you have to arrange this yourself. Consider an disability insurance for income coverage in case of illness and a business liability insurance. Also make sure you take care of your own pension save, because you will get AOW later but a supplementary pension you have to build up on your own. 

 

Roadmap: starting as self-employed alongside your job 

In the step-by-step plan below, you can read in 6 clear steps what you need to arrange, from your registration with the Chamber of Commerce to keeping track of your hours.

Step 1 - Check your employment contract 

Check your contract for a side-work or competition clause and always ask your employer's permission beforehand. 

Step 2 - Register with the Chamber of Commerce 

Sign up at the Chamber of Commerce (usually as a sole trader) and get a Chamber of Commerce number and VAT identification. 

Step 3 - Organise your administration 

Keep your records in order from day one (separate business account, use accounting software, keep receipts). 

Step 4 - Arrange tax matters 

Do your quarterly VAT return and prepare for income tax (set aside money for this). 

Step 5 - Make a time schedule 

Schedule set times for your zzp work and clearly communicate your availability; also guard your own rest. 

Step 6 - Keep track of your hours 

Keep a record of hours - jot down all direct and indirect hours - so you can prove that you reach 1,225 hours for deductions. 

 

Common mistakes and misunderstandings 

When starting your own business, some mistakes are often made. These are the most common ones: 

  • Employer not informed: Starting a business without informing your employer can lead to problems or dismissal. Be honest and avoid hassles. 
  • Tax underestimate: Not all your additional earnings will go to the Tax Office, but you will have to pay tax on your earnings yourself. So reserve enough for the assessment. 
  • Double use of wage tax credit: Apply the payroll tax credit to only one employer (usually your salaried employer). If you do it twice, a retroactive tax will follow later. 
  • No insurance or pension arrangements: Without an AOV or buffer, you are at risk in case of illness, and not building up a pension can be quite disappointing later on. 

 

Frequently Asked Questions 

Yes, usually yes, provided you report it and ask permission. Check your contract for a ban and discuss it, without a good reason your employer cannot refuse it. 

Then you miss out on certain tax benefits (such as the self-employed deduction) and pay slightly more tax on your profits. However, you can just do business part-time, there is no minimum number hours required. 

Not compulsory, but wise. For your salaried part, you are insured through your employer, but not for your self-employed work. So consider disability insurance and business liability insurance for your self-employed work.

With good planning and communication. Plan your self-employed hours well, let employer and clients know when you are available, and guard your limits. That way, the combination is perfectly manageable. 

No, you can only use it on one income (usually on your wages). Your self-employed income is gross and the rebate is settled via tax afterwards. So don't double-tap the wage tax credit. 

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