If your business doesn’t already have a retirement plan, now might be the time to take the plunge. Current retirement plan rules allow for significant deductible contributions. Even if your business is only part-time or something you do on the side, contributing to a SEP-IRA or SIMPLE-IRA can enable you to reduce your current tax load while increasing your retirement savings. With a SEP-IRA, you generally can contribute up to 20% of your self-employment earnings, with a maximum contribution of $53,000 for 2015. A SIMPLE-IRA, on the other hand, allows you to set aside up to $12,500 for 2015 plus an employer match that could potentially be the same amount. In addition, if you will be age 50 or older as of year-end, you can contribute an additional $3,000 to a SIMPLE-IRA.