Matt. 16, 17

When visiting Galilee, you will find that most restaurants have a dish called St Peters fish. This of course refers to the fish that had a coin in his mouth with which Jesus instructed Peter to pay his taxes. It is inconsequential what kind of a fish it was. The most important point is that Jesus provided for Peter to pay his taxes

The Lord wants us to be complicit in tax matters and legal compliance. God gives us Grace to do the right thing always.