Will I need to put down a huge deposit?
It’s a common misunderstanding that contractors need to find bigger deposits than permanent employees. It’s just not so.
You will need a minimum of 5% of the home’s purchase price to put down. But the larger the deposit you can find, the lower the interest rate on the balance.
A deposit of 15% will secure you a very respectable interest rate with a wide range of lenders.
On that note, lenders do expect a perfect credit history. Anything less may well affect your interest rate, indeed your suitability for a mortgage, irrespective of the size of your deposit.