How modern treaty tie-breakers work
Older UK treaties often broke a tie by reference to the place of effective management alone. Many current treaties, following the OECD Multilateral Instrument, instead require the two tax authorities to agree the residence by mutual agreement procedure, considering management, incorporation and other facts together.
Until agreement is reached, treaty benefits such as reduced withholding rates can be denied, so an unresolved dual residence position is not just theoretical: it can cost real money on cross-border payments in the meantime.






