⚡ How much extra house deposit can a LISA give you?

Finn

This calculator is a handy tool for UK savers planning to buy their first home, showing exactly how much the government's Lifetime ISA (LISA) bonus can boost your deposit. This remix completely overhauls the original mortgage-paydown template to tackle a totally different scenario, adding robust new logic that correctly accounts for your existing LISA balances and annual contribution limits. One practical caveat: the math assumes you'll definitely use the funds for a qualifying home purchase, so it doesn't factor in the 25% penalty if you need to withdraw the money for other reasons. If you're confident in your homebuying timeline, this is a great way to visualize the impact of that free government cash.

Reviewed v26.7.0