Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

I may earn a lot of cash soon through self-employment on a lucrative project.  How to handle the tax?
Seek professional advice as duffbeer703 has suggested already.  Very important! Consider incorporating.  If your income will fluctuate year to year, you can keep profit in the corporation, taxed in its hands at the Canadian small business rate, since such corporate income below $500,000 would likely qualify for the small business deduction. You could pay  retained earnings to yourself as dividends over more than one year in order to lessen the personal tax burden. If you don't incorporate, all your profits in the year they are earned are taxed at personal income tax rates, and with our progressive income tax system, taking the tax hit all in one year can be expensive.  However, if this project is a one-off and you're not likely to continue working like this, you might not want the overhead of a corporation.  Taxes aside, there are also legal issues to consider vis-a-vis incorporating, or not. A professional can help you make this decision.   Yes, you can claim deductions for reasonable business expenses, whether or not you are incorporated. No, you can't do free work on the side and claim it as donations.  It's nice to volunteer, but you wouldn't get a charitable tax credit for your time, only for money or goods donated. Consider opening an RRSP so you can start saving for retirement and get a tax deduction for any contributions you make.  This is but one strategy to reduce your tax.  There are others.  For instance, if you are a student, you perhaps have some unused tuition credits that you could claim in your first year with higher income. Oh, and seek professional advice!   ;-)