The MIA (milieu-investeringsaftrek) is a tax deduction for entrepreneurs who invest in new, environmentally friendly business assets listed on the RVO Environmental List. On top of regular depreciation, you may deduct an additional 27%, 36% or 45% of the investment amount from your profit, depending on the asset. The MIA can be combined with the KIA, but not with the EIA for the same asset. You must register the investment with RVO within 3 months of signing the purchase agreement.