Can I put the invoice I received from UKKO.fi in the household deduction? Saana Sarmela October 25, 2021 11:38 Updated Follow Yes, the invoice you receive is proof for a household deduction. The invoice must separate the share of labor and material costs in order to receive the household deduction. Please consider this when agreeing to work with a light entrepreneur. You can check here for all jobs a household deduction is possible. More information on the household deduction can be found on the Tax Administration's website.