Donation from father to help with bond

My dad wants to help us with our house bond by paying R100 000 into our bond account. Does this have any tax implications?

This would be a donation - it is not taxable in your hands but would need to be declared in your tax return as an "amount considered non-taxable". Donations tax is payable by the donor (i.e. your dad) at 20% on amounts greater than R100,000 per year. Please read our blog on Donations Tax for further details.