I have yet to hear one financial benefit from Brexit or any other benefits really, unless you want a united Ireland or Scotish independance.

fair few negatives. to name a few

- increase friction in trade to business (extra paper work/ costs/ taxes/ delays at border)

- loss of talent from EU

- lack of miltary access to Galileo GPS, screwing up the latest weapons

- fragmented internal UK market, NI under different rules

- lack of influence and veto to new EU rules / regulations, so UK has no influence or say to the regulations to a part of its country (ie Northern Ireland)