Can I put the invoice I received from UKKO.fi in the household deduction?

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.