If you haven't already done so, consider amending your company's 401(k) plan to permit Roth contributions by employees. With a Roth 401(k), contributions aren't deductible, but qualifying withdrawals are tax-free.
Plan year-end equipment purchases. Current tax law provides a $108,000 deduction for business equipment acquired this year.
Start a pension plan for your small business. Business owners can take a credit of up to $500 in each of the first three years of establishing a pension plan.
If you conduct business from your home, become familiar with the rules for home office deductions. Accurate records may preserve your deductions.