Working in Denmark, living in Sweden: the Øresund rules
Denmark taxes your salary and Sweden exempts it completely, without taking it into account for the tax rate. Under the Øresund agreement in force since 2025, days worked from home in Sweden still count as work in Denmark as long as at least half of your working time over each 12-month period is spent in Denmark; otherwise, the pay is split by working days and Sweden taxes its part.
As a non-resident you pay the 8 % AM-bidrag, the same state taxes as residents and a municipal tax at the national average rounded down to 25 %, with no church tax; you get the full personal allowance and the employment deductions. The commuting deduction (from 25 km a day) and the Øresund Bridge deduction (50 DKK per trip by car, 8 DKK by train) have a tax value of 25 %.
Social security and health cover are Danish; once home office reaches 25 %, social security moves to Sweden unless you obtain the Danish–Swedish exception, which requires at least 50 % of your work in Denmark. Results are shown in Swedish kronor at an exchange rate you can change, with the Danish amounts in DKK. Not modelled: the cross-border rules for people with at least 75 % of their income in Denmark (interest deductions, joint taxation).