The simple version

Your investment account charges fees every year, and those fees compound against you the same way returns compound for you. The SEC publishes free tools at Investor.gov that show you the real dollar cost of those fees over time, let you verify whether your broker is actually registered, and give you access to the disclosures every fund is required to file. You do not need an account, you do not need to pay anything, and you do not need to know how the market works to use them.

These tools exist because the SEC is required by law to support investor education, but the agency does not advertise them the way a fintech company would. The result is that most retail investors have never run their own fund through the fee analyzer, never looked up their broker on BrokerCheck, and never pulled a fund's prospectus directly from EDGAR. This article explains what each tool actually does and when it is worth your ten minutes.

The numbers

• A 1% annual expense ratio on a $50,000 investment over 20 years costs roughly $10,000 more than a 0.1% expense ratio on the same balance, assuming 6% annual growth. The Investor.gov fund analyzer calculates this for any fund you enter. (SEC, Investor.gov)
• FINRA BrokerCheck, linked from Investor.gov, contains registration and disciplinary records for more than 600,000 current and former registered brokers. (SEC, sec.gov)
• Every mutual fund and ETF registered in the United States is required to file a prospectus with the SEC. Those filings are publicly searchable on EDGAR, the SEC's electronic filing system. (SEC, sec.gov)
• The SEC's Office of Investor Education and Advocacy has published educational materials covering savings, investing, fraud recognition, and retirement accounts, all freely available on Investor.gov. (SEC, sec.gov)
• The SEC received more than 40,000 investor tips, complaints, and referrals in fiscal year 2024, many of which started with investors not knowing the registration status of who they were dealing with. (SEC, sec.gov)

What the SEC's free tools actually do

Investor.gov hosts three tools that are genuinely useful for anyone with a brokerage account, a 401(k), or a financial advisor. The first is the mutual fund and ETF expense analyzer. You enter the fund name or ticker, your investment amount, the number of years you plan to hold it, and your expected annual return. The tool outputs the total fees you will pay in dollar terms, not percentages. Percentages are easy to ignore. Dollars are not.

The second tool is a compound interest calculator that works in both directions: how much a lump sum or regular contribution grows over time, and how much fees reduce that ending balance. Running both together is the clearest way to see why a 0.9% expense ratio matters more than most people assume it does at account opening.

The third resource is EDGAR, the SEC's electronic filing system. Every publicly registered fund files a prospectus, annual reports, and semi-annual reports here. The prospectus is the legal document that discloses fees, investment strategy, risks, and who manages the fund. Reading the fee table in a prospectus takes about two minutes. It tells you what you are actually paying, which is often different from what the fund's marketing page highlights.

BrokerCheck is run by FINRA, not the SEC, but Investor.gov links to it directly because verification is part of the same due-diligence chain. Before you move money to any advisor or broker, a BrokerCheck search takes 30 seconds and shows you whether they are registered and whether any disciplinary actions have been filed against them. If someone is not on BrokerCheck, that is a material fact before you hand them your savings.

The Real Cost lens on a $50,000 investment held for 20 years

The fee analyzer makes the math concrete. Here is what it looks like on a single $50,000 investment held for 20 years, assuming 6% average annual growth and no additional contributions.

• At a 0.03% expense ratio (a low-cost index fund): ending balance approximately $159,000. Total fees paid: roughly $300 over 20 years.
• At a 0.75% expense ratio (a common actively managed fund): ending balance approximately $141,000. Total fees paid: roughly $18,000 over 20 years.
• At a 1.5% expense ratio (some target-date and managed funds): ending balance approximately $124,000. Total fees paid: roughly $35,000 over 20 years.
• The difference between the 0.03% fund and the 1.5% fund: $35,000 in fees and $35,000 less in your account at the end. The fee analyzer on Investor.gov runs this math for your actual funds in under a minute.

The 1.5% fund does not need to underperform the index to cost you money. The fee itself is the drag, every single year, compounding against the balance that would otherwise still be yours. Whether the fee is worth it depends on what the fund delivers in return. The tool does not answer that. It shows you the cost so you can ask the question.

What this means

The SEC building these tools into a free public website is not a guarantee that your investments will do well. It is a guarantee that the raw information you need to ask better questions has been publicly available for years, and that the gap between people who use it and people who do not is mostly awareness, not effort. Running your fund through the expense analyzer, searching your broker on BrokerCheck, and reading the fee table in a prospectus are not complicated tasks. They take less time than reading this article.

The underlying point is about the fee structure of the investment industry. Fees are disclosed, they are legal, and they are often reasonable for what a fund provides. But they are disclosed in formats designed for compliance, not for readability. The SEC's tools translate those disclosures into plain numbers. Using them once a year, when you review your account, is a habit that costs nothing and occasionally surfaces something worth acting on.

What this is NOT

This is not a recommendation to move your money into any specific fund, index, or asset class based on the fee comparison shown above. This is not advice on whether your current fund's fees are worth what the fund delivers. This is not a claim that low-cost index funds outperform actively managed funds in every market environment or over every time period. This is not a guide to using EDGAR for investment research beyond the basic due-diligence steps described here. This is not an endorsement of Investor.gov or FINRA BrokerCheck as complete substitutes for reviewing your full financial picture with a qualified professional.

Sources

• SEC press release, Financial Literacy Month outreach and Investor.gov tools: https://www.sec.gov/newsroom/press-releases/2026-32-sec-highlights-financial-independence-during-financial-literacy-month
• SEC Investor.gov (fund analyzer, compound interest calculator, investor resources): https://www.investor.gov
• SEC EDGAR (electronic filings, prospectuses, annual reports): https://www.sec.gov
• FINRA BrokerCheck (broker and advisor registration and disciplinary records): https://www.sec.gov