Yes! You can use AI to fill out Form RS115, Beneficiary Designation

Form RS115, Beneficiary Designation, is a legal document for members of the Public Employee Retirement System of Idaho (PERSI) to officially name the individuals, trusts, or estates that will receive their Base Plan death benefits. This designation is crucial as it supersedes other arrangements, including wills or trust documents, for the distribution of these specific funds. Today, this form can be filled out quickly and accurately using AI-powered services like Instafill.ai, which can also convert non-fillable PDF versions into interactive fillable forms.
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Form specifications

Form name: Form RS115, Beneficiary Designation
Number of pages: 1
Language: English
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How to Fill Out RS115 Online for Free in 2026

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Follow these steps to fill out your RS115 form online using Instafill.ai:
  1. 1 Navigate to Instafill.ai and upload or select the PERSI Form RS115.
  2. 2 Provide your personal member information, including your name, Social Security Number, PERSI ID, address, and contact details.
  3. 3 Enter the full names, Social Security numbers, dates of birth, and relationship for all primary beneficiaries, assigning a whole percentage of the benefit to each.
  4. 4 Optionally, repeat the process for secondary beneficiaries who would inherit if the primary beneficiaries are no longer living.
  5. 5 If any beneficiary is a minor, complete page 2 to nominate a custodian under the Idaho Uniform Transfers to Minors Act (UTMA).
  6. 6 Carefully review all the information you've entered for accuracy, then sign and date the member acknowledgment section.
  7. 7 Download the completed form and submit it to PERSI via mail or fax as per the form's instructions.

Our AI-powered system ensures each field is filled out correctly, reducing errors and saving you time.

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Frequently Asked Questions About Form RS115

This form is used to designate the person, people, or entities who will receive your PERSI Base Plan death benefits when you pass away.

No, but it is highly recommended. If you do not have a designation on file, your benefits will be paid to your surviving spouse by law, or to your estate if you have no spouse, which could cause delays.

Primary beneficiaries are the first in line to receive your death benefits. Secondary beneficiaries will only receive the benefits if all primary beneficiaries are deceased at the time of your death.

You must assign a whole percentage to each beneficiary, and the total for each group (primary or secondary) must equal 100%. For example, for three beneficiaries, you could use 34%, 33%, and 33%.

PERSI cannot pay benefits directly to a minor. You must nominate a custodian on page 2 of the form to manage the funds for the minor under the Idaho Uniform Transfers to Minors Act (UTMA).

No, this form is only for your PERSI Base Plan. You must contact Empower Retirement separately to change your beneficiary elections for the PERSI 401(k) Plan.

Yes. To designate your estate, write 'the Administrator of my Estate.' To designate a trust, provide the trust's name, date, and trustee information as instructed on the form.

You should submit a new, updated Beneficiary Designation (RS115) form to PERSI whenever your marital status changes to ensure your designations are current.

Once you have completed and signed the form, send it to PERSI via mail or fax using the contact information provided at the top of the form. The designation is not valid until it is on file with PERSI.

You only need to provide a PERSI ID number if you have multiple PERSI accounts. Otherwise, your Social Security Number is sufficient.

Yes, services like Instafill.ai use AI to accurately auto-fill form fields, which can save you time and help reduce errors.

You can use a service like Instafill.ai to fill out the form online. Simply upload the PDF, and the tool will allow you to type your information directly into the fields before printing for signature.

If you have a non-fillable or 'flat' PDF, you can use a tool like Instafill.ai. It can convert the document into an interactive, fillable form that you can complete on your computer.

If you make an error, simply cross out the incorrect information and write your initials next to the correction. Do not use correction fluid or tape.

Compliance RS115
Validation Checks by Instafill.ai

1
Primary Beneficiary Percentage Sum
This check verifies that the sum of the 'Benefit %' fields for all listed Primary Beneficiaries equals exactly 100%. This is critical for ensuring the member's assets are fully and correctly allocated as intended. If the total is not 100%, the form is considered incomplete and cannot be processed, as it would leave the distribution of funds ambiguous.
2
Secondary Beneficiary Percentage Sum
This check ensures that the sum of the 'Benefit %' fields for all listed Secondary Beneficiaries equals exactly 100%. Secondary beneficiaries only receive benefits if all primary beneficiaries are deceased, and their allocation must also be complete. A failure in this validation will prevent form submission, as it creates uncertainty in the contingent distribution plan.
3
Whole Number Percentage Validation
This validation confirms that all 'Benefit %' entries are whole numbers, as explicitly required by the form's instructions (e.g., '33%' not '33.3%'). Using fractions or decimals can lead to calculation errors and legal disputes over benefit distribution. Submissions with non-whole percentages will be rejected to enforce clarity and prevent processing errors.
4
Member Signature and Date Presence
This check verifies that the 'Member Acknowledgment' section is signed and dated. The form explicitly states it is 'not valid unless signed, dated, and on file with PERSI.' An absent signature or date invalidates the entire designation, meaning any previous designations would remain in effect, and the form will be rejected.
5
Member Social Security Number Validation
This validation ensures the 'Member Social Security Number' field is filled and conforms to the standard 9-digit SSN format. The SSN is a primary key for identifying the member's account within the PERSI system. An invalid or missing SSN would make it impossible to correctly associate the beneficiary designation with the member's account, leading to rejection of the form.
6
Beneficiary Identification Completeness
This check ensures that every listed beneficiary has, at a minimum, a full name and a valid Social Security or Tax ID Number. This information is essential for PERSI to locate and verify the identity of the beneficiary when a death benefit is payable. If this information is missing or incomplete for any beneficiary, it could cause significant delays or legal complications in payment, so the form would be flagged for correction.
7
Custodian Nomination Consistency Check
This validation confirms that if the 'Nominate a custodian' box is checked for a beneficiary on page 1, the corresponding 'Custodian Nominations' section on page 2 is fully completed for that beneficiary. This creates a necessary link between identifying a minor and appointing a custodian. If the box is checked but page 2 is incomplete, the form is logically inconsistent and will be rejected.
8
Minor Beneficiary without Custodian Warning
This check identifies any beneficiary whose 'Date of Birth' indicates they are a minor (e.g., under 18) but for whom the 'Nominate a custodian' box has not been checked. Since PERSI cannot pay benefits directly to a minor, this check is crucial to prevent future legal issues requiring court intervention. A validation failure would trigger a warning, strongly advising the member to complete the custodian nomination on page 2.
9
Beneficiary Date of Birth Validity
This check validates that the 'Date of Birth' for each beneficiary is a real, correctly formatted date that is not in the future. This data is important for identifying the beneficiary and determining if they are a minor who requires a custodian. An invalid or nonsensical date would cause the form to be rejected for data quality correction.
10
Completeness of Member Information
This validation verifies that the member's full name, complete mailing address (Street, City, State, Zip), and marital status are provided. This contact information is essential for PERSI to communicate with the member regarding their account and this designation. Incomplete information can lead to processing delays and returned mail, so the form would be returned for completion.
11
Trust Beneficiary Validation
This check is triggered if a beneficiary's name indicates it is a trust (e.g., contains 'Trust' or 'Living Trust'). It verifies that a Tax ID Number is provided instead of an SSN and that the trust's creation date is included in the name field, as per instructions. Failure to provide this specific information for a trust can create legal and tax complications, leading to the form's rejection.
12
Signature Date Plausibility
This check ensures the signature date is a valid date, is not in the future, and is not unreasonably far in the past. A future date is invalid because the member is attesting to the information on the date of signing. An invalid date makes it impossible to determine when the designation was made, which is critical as this form revokes all previous designations.

Common Mistakes in Completing RS115

Incorrect Percentage Totals

Users often make calculation errors, causing the benefit percentages for either the primary or secondary beneficiaries to not equal exactly 100%. This happens due to simple math mistakes or when adding/removing beneficiaries without adjusting other percentages. An incorrect total will cause the form to be rejected, delaying the processing of your designation and potentially leaving your account with your previous or default beneficiary settings. Double-check that the percentages in each section (Primary and Secondary) sum to 100% before signing.

Using Fractional or Decimal Percentages

The form instructions explicitly require using whole percentages only, but people often try to divide benefits equally among three beneficiaries using '33.3%' or '33 1/3%'. This will invalidate the designation because the system cannot process non-whole numbers. To avoid this, you must use whole numbers that add up to 100, such as 34%, 33%, and 33%. AI-powered tools like Instafill.ai can automatically validate these fields to ensure only whole numbers are used and that the total is correct.

Forgetting to Nominate a Custodian for a Minor

Members frequently list a minor child as a beneficiary but fail to check the 'Nominate a custodian' box and complete the required information on page 2. PERSI cannot legally pay death benefits directly to a minor, so this omission forces the costly and time-consuming court appointment of a conservator. To prevent this, always complete page 2 to nominate a custodian and a substitute custodian for any beneficiary under the age of 21.

Using Incomplete or Informal Beneficiary Names

Providing a nickname, an initial, or an informal name (e.g., 'Jenny Smith' instead of 'Jennifer Lynn Smith') can create significant legal and identity verification challenges when it's time to pay out benefits. The form requires the full legal name to ensure the benefit is paid to the correct person without dispute. Always use the beneficiary's complete first, middle, and last name as it appears on their government-issued identification to avoid ambiguity and potential legal hurdles for your heirs.

Missing Signature or Date

A surprising number of forms are submitted without the member's signature or the date of signing, both of which are required fields. This is often a simple oversight when rushing to complete the paperwork. An unsigned or undated form is legally invalid and will not be processed by PERSI, meaning your previous beneficiary designation (or the legal default) remains in effect. Always perform a final review to ensure you have signed and dated the 'Member Acknowledgment' section.

Assuming the Form Covers All PERSI Accounts

Members mistakenly believe this form (RS115) updates beneficiaries for all their PERSI-related accounts, including their Choice 401(k) Plan. The instructions clearly state this designation is for the PERSI Base Plan only and that 401(k) beneficiaries must be updated separately with Empower Retirement. This misunderstanding can lead to 401(k) funds being distributed based on an old, outdated designation. Always verify which accounts a form applies to and complete separate paperwork as needed.

Incorrectly Designating a Trust or Estate

When naming a trust or estate, people often use incorrect terminology, such as writing 'My Will' or just the name of their trust without the required details. The form specifies using 'The administrator of my estate' for an estate, and for a trust, you must provide the trust's name, date, trustee information, and Tax ID number. Failure to provide this precise information can lead to significant processing delays or legal complications. Using a tool like Instafill.ai can help guide you through these complex designations.

Illegible Handwriting or Improper Corrections

Since this form is often printed and filled out by hand, illegible handwriting in critical fields like names or Social Security Numbers can make the form impossible to process. Furthermore, users may use correction fluid or scribble out errors instead of following the instruction to cross out the error and initial the change. These mistakes can lead to data entry errors on PERSI's end or cause the form to be rejected. Since the original is a non-fillable PDF, a service like Instafill.ai can convert it into a fillable version, ensuring all entries are typed, legible, and clean.

Providing Incomplete Beneficiary Information

Members sometimes leave critical beneficiary details blank, such as the Social Security Number (SSN) or Date of Birth. This information is crucial for PERSI to positively identify and locate the beneficiary upon the member's death. Missing data can cause significant delays in the payout process while PERSI attempts to track down the correct information. Ensure every field for each listed beneficiary is filled out completely and accurately to facilitate a smooth transfer of benefits.
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