Why not set up a payment plan with the tax office? They are typically at a comparable interest rate to your 8% and you don’t have to leverage your bitcoin that way. There are so many options in almost every situation to explore BEFORE jumping to taking a loan with shit terms against your sats.
Discussion
we can't do that in my country. The terms are horrible. Worse then loan sharks (and daily interest).
and I did my research, this was least shittiest option.