# EDGAR Filing Document

**Accession Number:** 0001587551
**File Stem:** 0001580642-25-005649
**Filing Date:** 2025-8
**Character Count:** 2595
**Document Hash:** d7f64c97ce8b22439839ae008a028489
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001580642-25-005649.hdr.sgml**: 20250829

**ACCESSION NUMBER**: 0001580642-25-005649

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20250829

**DATE AS OF CHANGE**: 20250829

**EFFECTIVENESS DATE**: 20250829

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Capitol Series Trust
- **CENTRAL INDEX KEY:** 0001587551

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** OH
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-191495
- **FILM NUMBER:** 251281745

**BUSINESS ADDRESS:**
- **STREET 1:** 225 PICTORIA DRIVE
- **STREET 2:** SUITE 450
- **CITY:** CINCINNATI
- **STATE:** OH
- **ZIP:** 45246
- **BUSINESS PHONE:** 5135873447

**MAIL ADDRESS:**
- **STREET 1:** 225 PICTORIA DRIVE
- **STREET 2:** SUITE 450
- **CITY:** CINCINNATI
- **STATE:** OH
- **ZIP:** 45246

## Series and Classes Contracts Data

### Canterbury Portfolio Thermostat Fund (Series ID: S000053121)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000167184 | Institutional Shares | CAPTX           |
| C000167185 | Investor Shares      | CAPPX           |

![](image_002.gif)

August 29, 2025

**<u>VIA EDGAR</u>**

EDGAR Operations Branch

Division of Investment Management

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re: Capitol Series Trust (the "Trust")

<u>File Nos. 333-191495; 811-22895</u>

Ladies and Gentlemen:

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended (the "1933 Act"), the undersigned hereby certifies on behalf of the Trust that (i) the form of prospectus and form of Statement of Additional Information that the Trust would have filed pursuant to Rule 497(c) under the 1933 Act would not have differed from that contained in Post-Effective Amendment No. 173 to the Trust's Registration Statement on Form N-1A constituting the most recent amendment to the Trust's Registration Statement on Form N-1A relating to the Canterbury Portfolio Thermostat Fund; and (ii) the text of Post-Effective Amendment No. 173 to the Trust's Registration Statement on Form N-1A was filed electronically with the U.S. Securities and Exchange Commission on August 27, 2025, with an effective date of August 28, 2025, with regard to the Canterbury Portfolio Thermostat Fund.

Any questions or comments with respect to this filing may be directed to the undersigned at (513) 587-3447.

Very truly yours,

/s/ Tiffany Franklin

Secretary of the Trust

![](image_001.gif)