Every year, the Danish Tax Agency (Skattestyrelsen) releases its projection of your tax payments over the coming year, based on information it has from your previous returns. Keep in mind that if you bought the house after September 1st, you will need to update your preliminary tax return for the current year as well as in next year’s preliminary tax return. Danish tax payers sometimes set the figure on your preliminary tax returns slightly higher than their actual earnings to give themselves a buffer or set themselves up for a tax rebate further down the line.