If you own a business or are self-employed and haven’t already set up a tax-advantaged retirement plan, consider establishing one before you file your 2025 tax return. If you choose a Simplified Employee Pension (SEP), you’ll be able make deductible 2025 contributions to it, saving you taxes. Not only is the SEP deadline favorable, but SEPs are easy to set up and the contribution limits are generous. If you have employees, you’ll generally have to include them in the SEP and make contributions on their behalf, which are also deductible. Deadlines in 2026 for 2025 A SEP can be established as late as the due date (including extensions) of the business’s income tax return for the tax year for which the SEP is to first apply. For...