Contributions to an IRA can be made up until the tax filing deadline (usually April 15th), not including extensions. Submit your forms as follows: 1) Inquries and questions can be sent via email to the Plan.Texas 457 (b) Deferred Compensation Plan ("Plan"). At that time, the provisions in the. Contributions to a traditional IRA may be tax deductible in the contribution year, with current income tax due at withdrawal. Com to enroll online. SUBJECT: Summary of Plan Results and Committee Recommendations.