Source: https://sdirahandbook.com/tag/simple/
Timestamp: 2019-04-22 16:21:20+00:00

Document:
Retirement account/plan contributions are one of the most powerful tax strategies you can implement but you’ve got to make them by the deadline so that they can reduce this years tax liability. With the end of the year fast approaching, now is the time to make certain you are maximizing this important tax strategy for your 2014 tax planning. Please find below a table outlining the deadlines for 2014 retirement plan contributions according to your type of retirement account. If you are self-employed, you’ll notice the deadline also may depend on the type of company you own (e.g. s-corp or LLC) but also whether you are making contributions as an employee of your company and/or as the employer. First, let’s summarize the IRA contribution deadlines.
Traditional IRA Traditional, Deductible April 15, 2015, Due Date for Individual Tax Return Filing (not including extensions). IRC § 219(f)(3); You can file your return claiming a contribution before the contribution is actually made. Rev. Rul. 84-18.
Roth IRA Roth, Not Deductible April 15, 2015, Due Date for Individual Tax Return Filing (not including extensions). IRC § 408A(c)(7).
SEP IRA Employee N/A; employee contributions cannot be made to a SEP IRA plan.
Employer Contribution March 15/April 15th, Due Date for Company Tax Return Filing (including extensions). IRC § 404(h)(1)(B).
Simple IRA Employee Elective Deferral January 30, 2015. IRC § 408(p)(5)(A)(i).
Employer Contribution March 15/April 15, Due Date for Company Tax Return Filing (including extensions). IRC § 408(p)(5)(A)(ii).
In summary, for traditional and roth IRA contributions you have until the individual tax return deadline of April 15, 2015 to make 2014 contributions. SEP and SIMPLE IRA contribution deadlines are based on the company tax return deadline which could be March 15th if the company is a corporation and April 15th if it is a sole proprietorship or partnership. Keep in mind that this deadline does NOT include extensions so even if you extend your personal tax return filing to September 15, 2015, you still have a April 15, 2015, contribution deadline for Roth and Traditional IRAs.
401(k), including self-directed Solo 401(k) (plan must be adopted by 12/31/14) Sole Proprietorship Employee Elective DeferralContribution April 15, 2015, contribution deadline is Due Date for Employer Tax Return (including extensions) but compensation must have been earned by December 31, 2014 and election should be made by December 31, 2014; IRS Publication 560. Rev. Rul. 76-28; 90-105.
Employer Profit Sharing Contribution April 15, 2015, Due Date for Company Tax Return Filing, including extensions, however employee compensation must have been earned by December 31, 2014. IRC § 404(a)(6). Rev. Rul. 76-28; 90-105.
S-CorporationOr C-Corporation Employee Elective Deferral contribution March 15, 2015 (corporation filing deadline), contribution deadline is Due Date for Employer Tax Return (including extensions) but compensation must have been earned by December 31, 2014 and election should be made by December 31, 2014; IRS Publication 560. Rev. Rul. 76-28; 90-105.
Partnership (e.g. partnership LLC) Employee Elective Deferral Contribution April 15, 2015 (partnership return filing deadline), contribution deadline is Due Date for Employer Tax Return (including extensions) but compensation must have been earned by December 31, 2014 and Election should be made by December 31, 2014; IRS Publication 560. Rev. Rul. 76-28; 90-105.
There are a few important things to keep in mind regarding 401(k) contributions.
First, the contribution deadline for employer and employee contributions is the company tax return deadline INCUDLING extensions. So, if you have a solo 401(k) you can extend your company tax return and your contribution deadline is also automatically extended. For example, if you have a solo 401(k) plan adopted by your s-corporation, then your s-corporation tax return deadline is March 15, 2015, but that can be extended 6 months until September 15, 2015, upon filing an extension to extend the company tax return with the IRS. If you do this, you’d have until September 15, 2015, to make the 2014 employee and employer contributions. That being said, the employee contributions are taken from your salary/wages and if you make traditional 401(k) employee contributions those amounts are reported on your personal W-2 and reduce your taxable wages. The W-2 is effectively where your tax deduction for traditional employee contribution arises is it reduces your taxable wages on your W-2. As a result, you’ll need to make or at least know the amount you intend to make for employee contributions by January 31, 2015 as that is the W-2 filing deadline for 2014.
Second, if you are establishing a new Roth or Traditional IRA, you can create that new account at the time of the IRA contribution deadline. However, if you are establishing a new solo 401(k) plan, you must have the plan established by December 31, 2014. Because there are a number of documents and procedures required to create a new 401(k) plan, this is not something that can be left to the last minute and you should start immediately if you intend to open a 401(k) this year.
And lastly, while the deadlines for most 2014 retirement plan contributions for IRAs and 401(k)s runs into 2015, to keep things simple and stress-free we recommend making 2014 contributions by December 31, 2014, when possible.
As you can see, the contribution deadlines vary depending on the type of account/plan but also on the type of contribution. With respect to contributions to a self-directed solo 401(k), the contribution deadline also varies depending on the type of company you own that has adopted the plan. Therefore, it is important that you understand these deadlines and don’t miss out on an opportunity to maximize your tax deductions. For guidance on the contribution limits in 2014, please click here.
As previously stated, it is not too late to setup a retirement account/plan if you have not done so already. The deadline to set up a 401(k) and to make contributions for 2014 is typically the last day of the year, although I wouldn’t wait until the last day or even the last week of the year to do so. If you are interested in setting up a self-directed solo 401(k), please contact us immediately as we are helping clients establish these and so that we can get it set up before the end of the year.

References: § 219
 § 408
 § 404
 § 408
 § 408
 § 404