Hi Ladies. I'm hoping to get some advice about family budgeting when a large portion of income is unstable.

My husband works in an industry where a LARGE portion of his compensation is in the form of a end of year bonus. A few years ago his bonus was 30% of his base salary, this year it was 50%. The bonuses are somewhat expected but ultimately not guaranteed and there is no way to know the amount ahead of time. In the past when we make our "yearly budget" we completely ignored the bonus and treat it as windfall at the end of the year. We use it to max out our 401k, contribute to 529 plan, fund other investments and put the left over into savings (which is then used for large expenses like vacations and home repairs).

But I'm wondering if there is a better way to budget for this money since it's such a large portion of our income. We want to buy a bigger house and when we figured out our budget we didn't take any portion of the bonus into account. Should we? Should we defer all investments through the year, including 401k and rely solely on the bonus for that, freeing up more monthly income? Any and all suggestions welcome.