Double taxation of tax paid in the Netherlands

I recently commenced paid employment in The Netherlands and was surprised to discover a tax rate of 49.5%. This tax rate applies to earnings exceeding €73,000, a threshold I won't be reaching. In my upcoming self-assessment, if I include my foreign income under the Double Taxation agreement, will my tax liability be limited to the UK tax rate? Can I expect a refund from the UK for the additional tax paid in The Netherlands, which would have been the same as the tax for similar work in the UK? Or do I need to reclaim that excess tax directly from The Netherlands?

Hi
Foreign tax credit would only be given up to the amount of UK tax that would be due.
Any excess would need to be recovered from The Netherlands.