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The Form 5300 filings that stall rarely involve a bad plan document. They stall because someone uploaded a PDF over the 15 MB Pay.gov limit, or filed before the interested party comment window had run, or listed a sponsor EIN that did not match the last Form 5500. Small process slips, long delays.
Form 5300 is the Application for Determination for Employee Benefit Plan, filed to confirm that a qualified plan under 401(a), a 403(b) plan, and the related trust keep tax-favored status. You submit it electronically on Pay.gov as one PDF under 15 MB and pay the 2025 user fee, which is $2,700 for most plans. Two clocks govern the wait: no letter can issue before day 60, and most filers hear back near day 145. Calendar both the moment you submit.
Key Takeaways
- You file Form 5300 to request an IRS determination letter for a qualified plan under 401(a), a 403(b) plan, and the related trust. You submit it electronically on Pay.gov, not by mail.
- Pay.gov accepts one supporting PDF up to 15 MB. If your exhibits are bigger, fax the overflow with your Pay.gov tracking ID to 844‑255‑4818, then, if needed, ask EP Customer Service at 855‑224‑1311 to confirm delivery.
- Processing has two clocks. The IRS cannot issue a letter for at least 60 days to allow interested party comments, and most filers hear back in about 145 days. If you have no contact by then, call 877‑829‑5500 with the sponsor EIN and plan number.
- 2025 user fees: $2,700 for most Form 5300 applications, $4,200 for multiple‑employer plans, $3,500 for 5310 plan terminations, and $300 for small 403(b) plans under 100 participants. Some small employers qualify for a zero‑dollar exemption under the small‑employer exemption in section 7528(b)(2).
What Form 5300 is and when you should use it
Form 5300 asks the IRS to confirm that your plan is tax‑qualified, which protects favorable tax treatment for the plan and the trust. You use it for individually designed qualified plans and, in defined situations, for adopters of pre‑approved plans and for 403(b) plans. The submission is all electronic on Pay.gov (the older route of mailing a paper application to the EP Determinations office in Covington, KY is closed), and the IRS treats that Pay.gov confirmation email as your acknowledgment.
Two timing rules matter. First, you must give interested parties notice before you file and then the IRS waits for comments, which is why no letter can be issued until at least 60 days after receipt. Second, the agency’s typical contact window is about 145 days. Mark those dates on your calendar the day you submit.
2025 fees at a glance
Here is the plain‑English view of what you will pay in 2025, based on the IRS’s current schedule.
Form 5300 user fees and related EP fees
| Filing type | Fee |
| Form 5300, most plans | $2,700 |
| Form 5300, multiple‑employer qualified plan | $4,200 |
| Form 5300, 403(b) small plan under 100 participants | $300 |
| Form 5310, terminating plan | $3,500 |
Small employers can qualify for a zero‑dollar fee if they meet the section 7528(b)(2) small‑employer conditions. If you think you might be eligible, confirm your facts before you submit and document your basis in your cover letter.
The submission flow you will follow
- Create or sign in on Pay.gov, search “5300,” and open the Application for Determination for Employee Benefit Plan (always use the current version Pay.gov serves rather than an older PDF saved locally, since the IRS revises the form between filing seasons).
- Build one PDF under 15 MB with your plan, trust, adoption agreement, prior letters, amendments, and any Form 2848 or 8821. If you exceed 15 MB, fax the remainder to 844‑255‑4818 with the Pay.gov tracking ID, EIN, applicant name, and plan name.
- Pay the fee by ACH, debit, or credit card within the Pay.gov flow. You will receive an email confirmation.
- Track your internal timeline. The IRS cannot issue a letter until day 60, and most filers hear something by around day 145. If nothing by then, call 877‑829‑5500 with your EIN and plan number.
Pro tip: keep the Pay.gov acknowledgment, the tracking ID, and a one‑page checklist in your file. If a specialist asks for more information, you can respond quickly and avoid closure for an “incomplete” submission.
Why this matters for your team
When Form 5300 is buttoned up, reviews move faster, and you spend less time answering preventable questions. That means fewer bottlenecks, steadier advisory capacity, and less overtime during peak season. If you manage filings across multiple entities or plans, this structure is the difference between “always behind” and “always on time.”
How to file Form 5300 on Pay.gov, step by step
Prep your packet
- Identification items
- Sponsor name exactly as it appears on Form 5500, full mailing address, and the sponsor EIN, not a trust EIN or an SSN. Match this data to prior filings to prevent delays.
- Contacts and authorization
- If you attach a Form 2848 or Form 8821, check the authorization box in the application. Make sure the line 2 boxes on Form 2848 or the line 5 box on Form 8821 are checked so your representatives can receive notices.
- Plan details
- Plan name exactly as you want it on the letter, plan number 001–499, plan type, effective date, plan year‑end month, and total participant count. If mergers or spinoffs occurred, include dates, parties, and prior letters.
- Interested party notice
- Give notice 10 to 24 days before filing and keep evidence. Interested parties generally have 45 days to comment, up to 60 days in certain DOL referral scenarios.
Assemble the single 15 MB PDF
Include, in this order when possible:
- Cover letter summarizing your request, plan type, any special rulings, and related plan numbers.
- Current plan document and adoption agreement, signed and dated.
- All interim and discretionary amendments since your last letter.
- Trust document.
- Prior determination, opinion, or advisory letters.
- Any merger or consolidation agreements and supporting schedules.
- Form 2848 or 8821, if used.
If the packet runs large, keep the core document set in your PDF under 15 MB, then fax the overflow to 844‑255‑4818 with your Pay.gov tracking ID on the cover. If you want confirmation that your fax got through, send a follow‑up fax to 855‑224‑1311 asking EP Customer Service to confirm receipt.
Complete the Pay.gov application
- Search “5300,” open the form, and follow the screens.
- Enter sponsor data and plan data precisely.
- Upload your single PDF.
- Pay the user fee by ACH, debit, or credit card.
- Save the email confirmation. The IRS treats this as your acknowledgment.
Your timeline, from submit to decision
- Day 0, submit on Pay.gov and receive email confirmation.
- Day 1 to 60, the IRS cannot issue a letter. This is the comment window for interested parties.
- By about day 145, most filers hear from a specialist or receive next steps.
- If you have no contact by day 145, call 877‑829‑5500 with the sponsor EIN and plan number.
Fees and eligibility, with quick notes
- Most Form 5300 filings, $2,700.
- Multiple‑employer qualified plans, $4,200.
- 403(b) small plans under 100 participants, $300.
- 5310 for terminations, $3,500.
- Some small employers qualify for a $0 fee under the section 7528(b)(2) small‑employer exemption. Confirm eligibility against headcount and timing rules, and keep your documentation.
Avoid the common mistakes that slow reviews
Most 5300 delays trace back to the same handful of avoidable errors. Here are the ones my team screens for before anything touches Pay.gov.
Quick filing checklist you can copy
- Verify sponsor name, EIN, plan number, and plan year end against the latest Form 5500.
- Prepare and retain interested party notice proofs and dates.
- Build a single, clearly labeled PDF under 15 MB with plan, trust, adoption agreement, amendments, prior letters, and any POA or 8821.
- Submit on Pay.gov, pay the fee, and save the email acknowledgment and tracking ID.
- If exhibits exceed 15 MB, fax the overflow to 844‑255‑4818, then, if needed, fax 855‑224‑1311 to confirm delivery.
- Calendar day 60 and day 145. If no contact by day 145, call 877‑829‑5500 with your EIN and plan number.
How our team keeps this smooth
In our work with CPA firms and plan sponsors, we build a tidy filing packet from the start, with uniform file names, a cover letter that calls out the few items that changed, and a calendar that tracks day 60 and day 145. If your internal team is buried in production work and needs a disciplined process for assembling 5300 packets, reviews, and follow‑ups, Accountably can integrate trained offshore staff into your workflow without losing control of security or quality. We standardize workpapers and timelines so your partners spend less time in review, and more time on client strategy.
Final notes and sources
- Form 5300 must be filed on Pay.gov, with one 15 MB PDF, and excess exhibits by fax to 844‑255‑4818. You will get an email confirmation.
- Contact the IRS at 877‑829‑5500 with your EIN and plan number if you have not heard back in about 145 days.
- 2025 fees come from Revenue Procedure 2025‑4, Appendix A, including $2,700 for most Form 5300 filings, $4,200 for multiple‑employer plan submissions, $300 for small 403(b) plans, and $3,500 for 5310. Small‑employer exemptions are described on the IRS site.
- The IRS cannot issue a letter earlier than 60 days after receipt due to interested party comments. Plan on about 145 days total.
Reusable Checklists
These checklists are copy-paste ready for your firm SOP library. Drop them into your workpaper template and check items off as you assemble each filing.
Pre-file packet
- Confirm sponsor name, sponsor EIN (not a trust EIN or SSN), plan number 001 to 499, and plan year end against the latest Form 5500.
- Pull the current Form 5300 from Pay.gov rather than a locally saved copy.
- Assemble one PDF under 15 MB: cover letter, signed plan document and adoption agreement, all interim and discretionary amendments, trust document, and prior letters.
- If attaching Form 2848, check the line 2 boxes; if attaching Form 8821, check the line 5 box so representatives can receive notices.
- Confirm the correct 2025 user fee for your filing type and check small-employer eligibility under the section 7528(b)(2) exemption.
Interested party notice
- Identify all interested parties for the plan.
- Send notice 10 to 24 days before you file and keep dated proof of delivery.
- Track the comment window: generally 45 days, up to 60 days in certain DOL referral scenarios.
- Remember that no determination letter can be issued before day 60 from IRS receipt.
Submit and track
- Search "5300" on Pay.gov, enter sponsor and plan data precisely, and upload the single PDF.
- Pay the user fee by ACH, debit, or credit card.
- Save the Pay.gov email confirmation and tracking ID in the engagement file.
- If exhibits exceeded 15 MB, fax the overflow to 844-255-4818, then fax 855-224-1311 to confirm delivery if needed.
- Calendar day 60 and day 145; if no contact by day 145, call 877-829-5500 with the sponsor EIN and plan number.
Keep 5300 Season From Stalling
Form 5300 work does not spike on a single deadline the way a quarterly return does. It backs up in slow motion, because every filing carries a 60-day comment floor and a decision window of roughly 145 days, so a packet assembled carelessly in winter can still be costing you answers in summer. When determination requests pile up across several plans, the bottleneck is rarely the law; it is packet assembly and follow-up.
The fix is to treat each 5300 as a standardized production run, not a one-off research project. The 2025 user fees are fixed (per Revenue Procedure 2025-4, Appendix A), the exhibit set is predictable, and the timeline is known on day one. What varies is discipline.
- Build a uniform 15 MB PDF template so the cover letter, plan document, amendments, trust, and prior letters land in the same order every time.
- Reconcile the sponsor EIN, plan number 001 to 499, and plan year end to the latest Form 5500 before anything reaches Pay.gov.
- Log the interested party notice date and the day-60 and day-145 milestones in a shared calendar the moment you submit.
- Keep the Pay.gov tracking ID and acknowledgment in the file so a specialist's request for more information gets a same-week response.
When assembly and follow-up are this structured, senior reviewers spend their time on plan design and client strategy instead of chasing exhibits. That is the production discipline our tax services team builds into every engagement.
FAQs
What is Form 5300?
It is the application you use to request an IRS determination letter on the qualified status of a retirement plan and its related trust. You submit it electronically on Pay.gov, upload one PDF with your plan materials, and pay the user fee online.
How much does it cost to file?
Most Form 5300 filings cost $2,700. Multiple‑employer plan filings are $4,200, terminating plans on Form 5310 are $3,500, and small 403(b) plans under 100 participants are $300. Some small employers qualify for a $0 fee under the small‑employer exemption in section 7528(b)(2).
How long does it take?
You should not expect a letter before 60 days due to the interested party comment period. Most filers hear back around 145 days from submission. If you have no contact by then, call 877‑829‑5500.
Where do I send exhibits that exceed 15 MB?
Keep your core PDF under 15 MB for Pay.gov, then fax the overflow to 844‑255‑4818 with your Pay.gov tracking ID, EIN, applicant name, and plan name. If you want confirmation that the fax arrived, send a confirmation request to 855‑224‑1311.
Do I need to mail anything?
No. Form 5300 is an electronic submission through Pay.gov. Treat the Pay.gov email as your acknowledgment.