Mortgage
A loan to buy a property, secured against that property.
LTV
How much of a property's value you're borrowing.
Stamp Duty
A tax paid when you buy property in England and Northern Ireland above certain thresholds.
Equity
The portion of your property that you actually own outright.
Remortgaging
Switching your existing mortgage to a new deal, either with your current lender or a different one.
Fixed Rate vs Tracker Mortgage
Two different ways your mortgage interest rate can be set, with very different levels of certainty.