During 1706, the Treaty was agreed between Scotland and England, in negotiations in London.
England had been careful to give promises to Scots negotiators that Scotland would not lose out from Union - the Treaty guaranteed future Burgh rights and Scottish legal traditions.
English promises guaranteed trade with English colonies, which would balance the effect of higher taxes.
There was also a guarantee of payment to various Scots of the Equivalent, a sum of £398,085.10s. This was equal to the cost of the Darien Scheme and was compensation for taking on English debt.
The Treaty of Union was passed by the Scottish Parliament in early 1707.