Your social security contributions guarantee your pension, child benefit for your children, your health care and cover you against bankruptcy. As long as you pay the correct amount, on time...
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The contributions of one whole year are normally calculated on the basis of the amount of the net operating income of three years previously, the reference year. They are equal to a percentage of the income of that year. The contributions are calculated by indexing the operating income of the reference year.
When you are a self-employed starter, there is of course no reference year. What’s more, you don’t know exactly how big your income will be. So, as a starter you pay a provisional amount, the legal minimum. As a self-employed starter in primary occupation you can opt to pay contributions on the basis of an estimate of your income, which is actually more sensible than choosing the legal minimum.
The start period extends for at least 12 quarters (3 years) with a maximum of 15 quarters. For the year 2009, a self-employed starter (primary occupation) will pay the following minimum contributions:
As soon as the social security fund knows your real income, it will start up a procedure of the provisional contribution, year by year.
Every quarter we send an invoice for your social security contributions. The size of your quarterly contribution depends on your income and your status as self-employed person. Securex advises you to pay your social security contributions by direct debit.
Because you have no reference income* as a starter, you pay contributions on the basis of an estimated income. So it is important that you keep a close eye on your income for these first few years: we will then adapt your contributions to your situation. If it turns out that you have paid too much, there will be a regularisation.
* Reference income: for the purposes of calculating social security contributions, the reference income is the income of three years ago. Thus, for 2009 the social security contributions for self-employed persons are calculated on the net income of 2006. Because starters do not have a reference income from 2006, their contributions are calculated at a fixed minimum. However, in 2011 the tax department will send details of the actual income to the Social Security department. The Social Security department will then use this information to regularise the contributions already paid. The risk is that in 2011 the self-employed starter will not only have to pay his social security contributions for that year, but also possible regularisation payments for the previous years. Because the regularisation payments can be big, the self-employed starter can ask his social security fund if he can pay social security contributions on an estimated income instead of the provisional fixed payments.