If it's totally covered by the deposit coming up the chain then just that. If there is additional monies required to 'top up' then these are supplied by you.
sell 500k house = £50k
buy 1,000,000 = £100k
In this scenario you would need to supply £50k ahead of exchange to your solicitor
Cheers, that does indeed seem to be the case. Worryingly, no-one had mentioned that up until now so I need to rustle up £20k in the next couple of days!
How does the deposit on exchange of contracts work? If a purchase is being funded through sale of property/mortgage where does this deposit come from?