Best Software for SEC Comment Letter Research in 2026

Every SEC comment letter becomes public on EDGAR, and you can search all of them for free. What you pay for is speed. Paid tools link the company's reply to the staff's letter, tag topics, send alerts and cite their answers.

This guide compares 12 tools for SEC comment letter search, grouped by the job each one does best. We start with the free tools, because they do more than most teams expect. Then we cover the paid research platforms, the data feeds and the AI tools.

Which comment letters this guide covers

This guide covers the letters SEC staff send a company after reviewing its filing, and the company's replies. The Division of Corporation Finance sends most of them, after reading a 10-K, 10-Q, 8-K, proxy or registration statement.

Two other documents share the name and send searches the wrong way. Public comment letters on proposed SEC rules sit in a separate SEC database. No-action letters are staff answers to a company's own request for comfort.

Neither appears in the tools below, so check which one you need before you start. Our guide to SEC comment letters explains all three.

Are SEC comment letters public?

Yes. The SEC publishes its letters and the company's replies on EDGAR, but only after the review ends. The Division's own words: it makes "its comment letters and company responses to those comment letters public on the SEC's EDGAR system no sooner than 20 business days after it has completed its review."

That rule has run since January 1, 2012. Before then the wait was at least 45 days, for reviews of filings made after August 1, 2004. So the public record now covers about two decades of conversations between the staff and public companies.

The 20 days are a floor, and the gap in practice is much longer. A letter goes public only when the whole review closes, and a review can take several rounds. We counted every staff letter EDGAR released from July 2025 to mid-October 2026.

In Q3 2026 the SEC released 1,120 staff comment letters on EDGAR, down 51% from 2,278 a year earlier. The median staff letter released in Q3 2026 was dated 217 days earlier, against 103 days a year before. Two-thirds of the letters released that quarter were more than six months old.

DeepQuarry and the National Law Review have reported two causes. One is slower reviews after the October to November 2025 government shutdown. The other is staffing disruption in the Division of Corporation Finance.

No staff comment letter was released in October 2025. None was released from October 1 to 12, 2026, and releases resumed on October 13.

The lag changes how you search. EDGAR lists letters by the date they were written, not the date they went public. The SEC's own help page says correspondence is "indexed by filing date, not release date."

So a search for letters from the last 30 days misses most of what went public this week. Those letters were written months ago.

Which SEC comment letter tool fits your job?

Start with the job, then pick the tool. Most teams need one free tool and, at most, one paid one.

What to look for in an SEC comment letter search tool

Seven questions separate the tools. Test the answers on a company whose letters you already know.

Does it hold both sides of the conversation?

Check for both UPLOAD and CORRESP letters, plus DRSLTR replies if you work on IPOs. CommentLetterSearch.com, for one, indexes company replies only.

Are the letter and the reply linked?

Linked threads save the most time. Without them, you match letters to replies by company and date on EDGAR. Ask whether linking covers every filer or only larger ones.

Which date does it show?

A tool that shows the release date tells you what's new this week. Hudson Labs, Calcbench and CommentLetterSearch.com show release dates.

Does search read the letter or a summary?

Full-text search finds the staff's exact words. Summary search finds only what the summary kept.

Can you count letters by topic?

Ask how many topics the tool uses, who assigns them and whether you can export the counts. Audit Analytics uses 2,800 issues, while Gaapio uses 134 accounting topics.

How fresh is it?

Compare the tool's newest letter with EDGAR's latest releases. On October 15, 2026, Gaapio's newest thread was dated June 2026.

Can you check every answer?

Open three citations in a trial. Each one should land on the letter itself.

Who uses SEC comment letter research

Five groups read comment letters, each for a different reason, which is why no single tool wins every job.

• SEC reporting managers check recent letters in their industry before they file. Our guide to using comment letters to audit your own filings shows the method.
• Technical accounting teams search by topic, such as segment reporting under ASU 2023-07, and want the staff's exact words.
• Securities lawyers pull precedent replies when a client gets a letter. Our response playbook covers the reply itself.
• Auditors check a client's review history and the issues raised across its industry.
• Investors and academics read letters for red flags or want bulk data to process.

How the comment letter tools compare

Finrep makes one of these tools. No vendor paid to be listed, and we checked every fact against each vendor's public pages on October 15, 2026.

The two tables below hold the facts we could document for each tool. "Not documented" means we searched the vendor's public pages and didn't find it. It doesn't mean the feature is missing.

Coverage and search

Dates, alerts and price

We ran three searches on four tools

On October 15, 2026 we ran three searches, fixed in advance, on the three free tools and on Finrep. We recorded what each tool returned and opened every example on EDGAR. Finrep ran its own product, and outside reviewers haven't graded these results yet.

The three searches were:

1. Segment expenses. Staff comments in 2025 on significant segment expense disclosures under ASU 2023-07, at software companies.
2. Non-GAAP prominence. Staff comments in 2025 or 2026 asking for the GAAP measure to get equal or greater prominence.
3. Cyber-incident follow-ups. Second-round staff letters on cybersecurity incident 8-Ks under Item 1.05, sent after the company's first reply.

Search 1: segment expenses at software companies

EDGAR's phrase searches found four software letters from 2025, two of them on point. GoDaddy's March 17, 2025 letter is typical: "We note your disclosure of other segment items and that you do not disclose significant segment expenses."

Finrep returned GoDaddy and MeridianLink, each with its reply. MeridianLink's July 30, 2025 letter never uses the phrase "significant segment expenses". It says "significant expenses labeled adjusted," so all seven of our planned EDGAR searches missed it.

Gaapio's topic and software filters returned no letter on point. GoDaddy's thread appeared only when we searched its name, because its AI summary doesn't use the phrase. CommentLetterSearch.com returned replies from GoDaddy and Commvault, with no staff letters.

Search 2: non-GAAP prominence

EDGAR returned 75 staff letters from January 2025 to April 2026. We searched four phrases, including "equal or greater prominence" and C&DI 102.10. Visa's March 31, 2026 letter asked it to discuss non-GAAP results only after its GAAP results.

Gaapio matched 57 letters for 2025. In the threads we opened, it showed the staff letter, reply and closing letter together. One match was wrong: a Unisys letter about other metrics matched on the word "prominence" in its summary.

CommentLetterSearch.com returned 48 company replies. Its date filter works on the day a reply went public, so 20 of them were filed in 2024.

Finrep returned 14 letters, all from January to July 2025, each with its reply. It said it couldn't verify a qualifying 2026 letter, while EDGAR held 10.

Search 3: follow-ups on cyber-incident 8-Ks

EDGAR's search found 28 letters that mention Item 1.05 or a cybersecurity incident, all dated 2024. Telling a follow-up from a first letter meant reading each company's correspondence list, which turned up six follow-ups.

Finrep returned five of the six, each with its reply, including UnitedHealth's October 4, 2024 follow-up. It missed the Federal Home Loan Bank of New York.

Gaapio showed two, both from Brandywine. CommentLetterSearch.com held the replies to all six, but none of the staff letters.

What the tests teach

• Exact words decide what EDGAR finds. Search the staff's phrasing and the regulation's numbers, then search again with plainer words.
• Summary search can miss and mismatch. A summary that drops your phrase hides the letter. One that shares a word can surface the wrong letter.
• Check which date a filter uses. Letter date and release date can sit months apart.
• Add DRSLTR. Three replies in these searches, from Rank One Computing, Altech Digital and CoreWeave, were filed as DRSLTR. A CORRESP-only search misses them.
• No tool caught everything. Finrep's answers call themselves non-exhaustive, and its citations open in the Finrep app rather than on sec.gov. Check any list against EDGAR before you rely on it.

How to test a comment letter tool before you buy

A trial tells you more than a demo, if you test the tool on letters you already know. Five checks take under an hour.

Our guide on how to compare AI tools for SEC reporting teams has a fuller worksheet for vendor calls.

What are the free tools for SEC comment letter search?

Three free tools cover most one-off research. EDGAR is the complete record, while Gaapio adds summaries and CommentLetterSearch.com screens replies.

1. SEC EDGAR full-text search

EDGAR full-text search is the SEC's own free search across every electronic filing since 2001. It holds every public staff letter and company reply.

What it covers

Staff letters are form type UPLOAD and company replies CORRESP. The "Filing review correspondence" category adds DRSLTR, the replies on draft registration statements, so IPO replies don't slip through. A search limited to CORRESP misses every reply on a confidential draft S-1.

How you search

Exact phrases and boolean terms, filtered by form type, date, company, ticker, CIK and location. The SEC's FAQ says "Natural language search capabilities are not currently supported." There's no industry filter.

Price

Free, with no account.

Best for

Complete, exact-phrase searches, when your team has time to read.

Watch out for

• Letter dates, not release dates. A recent date filter misses letters that just went public.
• No linked replies. You rebuild each conversation from the company's filing list.
• Double counts. Each letter comes back as a PDF and a text copy, so count by accession number.
• No export for correspondence results.

2. Gaapio SEC Comment Letter Explorer

Gaapio, an AI technical accounting software company, runs a free explorer with an AI summary of each letter. "Free and open. No login required," its page says.

What it covers

Staff letters and company replies on accounting topics from 2022, tagged across 134 topics and grouped into threads. The site counts 12,190 letters on one page and 17,720 on another.

How you search

Filter by topic, year, industry and letter type. The search box matches the company name, ticker or AI summary, not the letter's full text.

Price

Free. Gaapio's paid platform is priced on request.

Best for

Free browsing of accounting letters by topic.

Watch out for

• Search reads the summary. A phrase the summary leaves out won't come back.
• Coverage stops short. On October 15, 2026 its newest thread was dated June 2026, and non-accounting letters aren't included.
• Threads can split. In one IPO review we checked, the staff's letters and the company's replies sat in two separate threads.

3. CommentLetterSearch.com

CommentLetterSearch.com is a free site from Dorsey Research LLC, the business behind Edwin Dorsey's newsletter The Bear Cave. It's built for investors screening for risk.

What it covers

Company replies only. A search on October 15, 2026 returned 14,386 replies from 5,657 companies, dated January 2024 to September 28, 2026.

How you search

Keyword search, or AND, OR and NOT in advanced mode. Filters cover market cap, company type, dates and review length. A "Risk Rating (Beta)" flags negative language.

Price

Free, with no login.

Best for

Screening company replies for red flags.

Watch out for

• One side of the conversation. You see the staff's question only where the reply quotes it.
• Short history. Nothing before 2024 is indexed.
• A lag behind EDGAR. Its newest reply was dated September 28, 2026 when we checked, so look on EDGAR for anything newer.

Which paid platforms cover SEC comment letters?

Paid platforms earn their price on linked replies, topic tags you can count and alerts. Most don't publish prices, so plan on a sales call.

4. Audit Analytics (Ideagen)

Audit Analytics, part of Ideagen, sells a comment letter database whose topic data also sits behind PwC's annual trends report.

What it covers

Staff reviews and company responses for all '33 and '34 Act filers from 2004, updated daily. Each letter is indexed against 2,800 proprietary accounting issues.

How you search

Search by issue, auditor, letter type or referenced filing, and benchmark issues by industry. You can also track the people who send and answer letters. A threads database matches each comment to the company's reply.

Price

Not published. Ideagen offers a demo.

Best for

Counting issues across many companies, with data in Excel, as a feed or through WRDS.

Watch out for

• Threads cover a subset: Russell 3000 companies, large accelerated filers and accelerated filers.
• Module packaging. Letters sit in the "Corporate and legal" module, so check your subscription.
• No AI or alerts described on the module's current pages.

5. Intelligize+ AI (LexisNexis)

Intelligize+ AI is LexisNexis's SEC research platform for law firms and corporate legal teams. Protégé, its AI assistant, sits on top.

What it covers

Comment letters and company responses. Its site gives two counts: "516,000+ Comment Letters & responses" on one page and "450,000+" on its API page.

How you search

Its 2022 and 2023 guides describe filters for examiner, topic, law firm, company and industry. Replies are linked to each letter. Custom alerts cover new comment letters.

AI assistant

Protégé answers in plain English with source links. Since March 30, 2026 it compares up to 20 SEC filings at once and exports answers to PDF or Word.

Price

Not published. Trials are on request.

Best for

Legal teams researching precedent replies and examiner history.

Watch out for

• AI scope. No Intelligize page says Protégé draws on comment letters.
• Older documentation. The detailed comment letter features come from guides that predate the July 2024 launch of Intelligize+ AI.
• A 20-filing ceiling. A 40-company peer set takes two runs.

6. Bloomberg Law

Bloomberg Law is Bloomberg Industry Group's legal research platform. Its own public pages don't describe staff comment letter search, but two law-library guides do.

What it covers

Georgetown Law Library's guide describes "Bloomberg's EDGAR Comment Threads," a fielded search whose results are threaded. The Jenkins Law Library guide lists staff comment letters in its EDGAR collection.

Bloomberg's help center says EDGAR became a source for its AI Assistant in January 2026. Whether that includes staff comment letters isn't documented.

Price

Not published.

Best for

Legal teams already on Bloomberg Law.

Watch out for

• A name clash. Bloomberg's "Comment Letter" database holds public comments on proposed rules, not staff letters.
• Confirm first. Ask Bloomberg before you rely on the feature.

7. Thomson Reuters Checkpoint Edge

Checkpoint Edge is Thomson Reuters' tax and accounting research platform. A help page describes an "SEC Correspondence" search inside it.

What it covers

You filter by letter type, filing date, underlying form, SIC code, company, law firm or auditor. Related letters open "if available." The help page is labelled "for internal use only," so treat it as weaker evidence.

Westlaw Business Law Center also lists "SEC Comment Letters," without saying which kind.

Price

Not published.

Best for

Checkpoint users who want correspondence filtered by law firm or auditor.

Watch out for

• Thin documentation. Letter types, years and counts aren't published.

8. Wolters Kluwer RBsourceFilings

RBsourceFilings is Wolters Kluwer's securities law research tool, aimed at securities lawyers.

What it covers

Its product page lists "SEC Staff Comment Letters" next to SEC filings and no-action letters. Search works in plain English, boolean or by citation.

Price

Not published.

Best for

Securities lawyers who want letters next to rules and SEC guidance.

Watch out for

• No coverage details. Dates, reply linking and topic tags aren't published.

Data feeds and low-cost tools

These suit teams that want raw data or a cheaper subscription. Calcbench and Hudson Labs also track the date a letter went public.

9. sec-api.io

sec-api.io sells EDGAR data through APIs, with comment letters as a raw bulk dataset since March 2004.

What it covers

Staff letters and replies, "approximately 600,000 files" by its own count. You query its APIs or download monthly ZIP files.

Price

The first 100 API calls are free. Plans then cost $49 a month (Personal) or $199 a month (Business), and full-text search isn't in Personal.

Best for

Developers building their own dataset.

Watch out for

• No linking or topics. "The link is implicit, not explicit," it says, so you build the matching.
• Mixed freshness signals. The page lists updates as daily in one place and monthly in another, and DRSLTR isn't among its form types.

10. Calcbench

Calcbench is a financial data platform built on XBRL that also carries comment letters and replies as full correspondence chains.

What it covers

A free public "Recent Comment Letters" page lists each day's releases, and reading a chain needs a login. Calcbench records both the filed date and the release date, so the release lag is visible.

Older posts describe searching letters by company, peer group and date, plus email alerts for new letters (2018).

Price

Basic is free with sign-up. Premium costs $6,000 and Professional $12,000 per user per year, and Calcbench doesn't say which plan includes letters.

Best for

Subscribers who want letter chains next to financial data.

Watch out for

• Dated documentation. Most comment letter material dates from 2016 to 2022.

11. Hudson Labs

Hudson Labs is an AI research platform for investors that tracks comment letters "as they are made public."

What it covers

It "sorts SEC letters by the date the correspondence was made public, and not the original filing date." Users get daily alerts and, since June 19, 2026, AI summaries of letters. Its user guide describes US coverage since January 1, 2019 for its risk feeds.

Price

Core costs $99 a month billed annually or $119 monthly, with a 14-day free trial.

Best for

Investors watching new letters across a watchlist.

Watch out for

• Plan limits. Its user guide lists the letter feed under the institutional tier.
• Market cap filter. Feeds hide companies under $300 million by default.
• One side documented. Company replies aren't mentioned in Hudson's public material.

AI answers with sources: Finrep

AI answers with sources save the reading time. They earn trust only when every answer opens to the letter or filing behind it.

12. Finrep

Finrep is an AI research platform for SEC reporting, technical accounting and legal teams. Its Comment Letter Explorer is built for the question teams ask before they file: what will the staff ask us, and how did peers answer?

What it covers

• Comment Letter Explorer. An analytics view shows comment letter focus areas with filters. A thread view shows each conversation with AI-tagged discussion points.
• Full threads. You read the whole exchange, letter to closing, with chat assistance alongside.
• Reports. It generates up-to-date reports on recurring issues and themes.
• Ask Fina. Finrep's AI assistant answers questions across filings, accounting guidance, peers and comment letters, with citations you can open.
• Keyword search. Boolean search with filing filters, keyword alerts, saved searches and watchlists.

Two workflows build on the letters. Comment letter risk ranks the sections of a draft 10-K or 10-Q by the staff's sector patterns. Comment letter response drafts a reply with the peer responses to similar comments, each linked to EDGAR.

Both pages carry sample reports on Nike, McDonald's and Tesla filings.

Price

Best for

SEC reporting and technical accounting teams that want cited answers linking letters, replies and peer disclosures to their own filing. In our three test searches, Finrep was the only tool that returned the company's reply with every staff letter it found.

When to skip Finrep

If you look up an occasional letter, the free tools above do that well. If you need a bulk academic data feed, sec-api.io or Audit Analytics through WRDS fit better.

Trend reports tell you what the staff asks, not where the letter is

Trend reports answer a different question. They rank the topics the staff raised most, but they don't let you search for a specific letter.

How do you search SEC comment letters on EDGAR yourself?

You can do most of what the free tools do by hand on EDGAR. These five steps keep the search complete. Our walkthrough of searching comment letters by form type goes deeper.

How do you check an AI summary of a comment letter?

AI summaries save reading time, but a summary is not the letter. Check three things before you rely on one.

Common questions

What is the best tool to search SEC comment letters?

It depends on the job. EDGAR full-text search is the best free tool, because it holds every public letter and reply. Among paid tools, Audit Analytics fits issue counts, Intelligize+ AI fits legal precedent and Finrep fits checks on a draft.

Is there a free SEC comment letter search?

Yes, EDGAR full-text search is free and complete. Gaapio's Comment Letter Explorer is free and adds AI summaries and accounting topics. CommentLetterSearch.com is free for company replies from 2024.

Are SEC comment letter responses public?

Yes, company replies are released with the staff's letters, no sooner than 20 business days after the review ends. Replies are filed as CORRESP, or as DRSLTR when they answer comments on a draft registration statement. Material under a Rule 83 confidential treatment request isn't released.

How do I find a company's response to an SEC comment letter?

Open the company's filing list on EDGAR and read the correspondence in date order. The reply usually follows the staff letter by a few weeks. Check for DRSLTR filings on IPO reviews, and for amended filings marked "[Cover]," where some replies sit.

Why can't I find a comment letter I know was sent?

Most likely it hasn't been released yet, because letters go public only after the whole review ends. In Q3 2026 the median released letter was 217 days old. EDGAR also lists letters by the date written, so a recent date filter hides new releases.

Can I search SEC comment letters by topic or industry?

Not on EDGAR's search form, which has no topic or industry filter. Gaapio tags accounting topics for free. Audit Analytics, Intelligize+ AI, Checkpoint Edge and Finrep offer topic or industry filters in their paid products.

Can I get alerts when new comment letters are released?

Yes, Hudson Labs sends daily alerts sorted by release date, and Calcbench has described email alerts for new letters. Intelligize+ AI and Finrep offer alerts too. EDGAR offers RSS feeds you can filter by form type.

How much do SEC comment letter tools cost?

EDGAR, Gaapio's explorer and CommentLetterSearch.com are free. Paid plans start at $49 a month for sec-api.io and $99 a month for Hudson Labs, billed annually. Calcbench lists $6,000 and $12,000 plans per user per year, and the rest price on request.