SOC 1 Report: Do You Need One? A Guide for Service Organizations

A company needs a SOC 1 report when it provides services that could affect its clients’ internal control over financial reporting (ICFR). Common examples include payroll processors, benefits administrators, loan servicers, fund administrators, and any software platform that touches the financial books of the businesses it serves. If your clients’ auditors are asking for a SOC 1, or if prospects are making it a contract requirement, that is a clear signal the engagement falls within scope.

What Is a SOC 1 Report?

A SOC 1 report, formally titled “Report on Controls at a Service Organization Relevant to User Entities’ Internal Control Over Financial Reporting,” is an attestation engagement performed by a licensed CPA firm under the AICPA’s AT-C Section 320, part of SSAE No. 18. It documents the controls a service organization has in place and, in a Type 2 version, provides an independent opinion on whether those controls operated effectively over a defined period.

The framework replaced the older SAS 70 standard and has been governed by SSAE 18 since May 1, 2017. SSAE 21, effective for reports issued on or after June 15, 2022, introduced additional quality requirements but did not change the fundamental structure of SOC 1 engagements.

The audience for a SOC 1 report is narrow and specific: user entities (your clients) and their independent auditors. It is not a public marketing document. Its purpose is to give user-entity auditors the evidence they need to understand and, where appropriate, rely on the controls you maintain on their behalf.

Who Needs a SOC 1 Report?

The threshold question is whether your services are relevant to a client’s ICFR. If a breakdown in your controls could cause a material error in a client’s financial statements, a SOC 1 report is likely expected. Organizations that routinely receive requests include:

• Payroll processors. Payroll directly affects wages expense, payroll tax liabilities, and headcount data on the income statement and balance sheet. Errors in your processing flow downstream to your clients’ financials immediately.
• Benefits and retirement plan administrators. Recordkeepers and third-party administrators for 401(k) and other ERISA plans handle contribution processing, investment allocations, and participant data. Plan auditors routinely request SOC 1 reports from these providers to evaluate controls before issuing opinions on Form 5500 filings. The AICPA maintains a dedicated resource on SOC 1 reports and employee benefit plans.
• Loan servicers and payment processors. Any organization that posts payments, manages escrow balances, or maintains receivables and payables sub-ledgers on behalf of clients touches financial reporting directly.
• ERP hosting and managed accounting platforms. Cloud platforms that host general ledger systems or handle transaction processing may carry ICFR-relevant controls even if the platform’s own focus is technology.
• Insurance claims processors and fund administrators. These organizations often affect how revenue, reserves, or investment balances are measured in a client’s financial statements.

If your clients are publicly traded, their external auditors must evaluate the work performed by service organizations under PCAOB standards. If your clients are private companies or nonprofits, their auditors follow AU-C Section 402 under GAAS. Either way, the auditor needs either a SOC 1 report or a more burdensome alternative: sending their own auditor to your facility to assess your controls directly. A current SOC 1 report makes that alternative unnecessary.

SOC 1 Type 1 vs. SOC 1 Type 2 Audit

Understanding the difference between a SOC 1 Type 1 and a SOC 1 Type 2 audit matters because clients and their auditors almost always want the Type 2.

SOC 1 Type 1

A Type 1 report provides an opinion as of a single point in time. The service auditor evaluates whether your controls are suitably designed to achieve their stated objectives and whether they were implemented on the report date. It answers the question: “Are the right controls in place?”

Type 1 reports are most useful for organizations going through their first SOC engagement. They establish a baseline and allow management to identify gaps before committing to a full operating-effectiveness examination. They are also faster to complete, typically finishing in two to three months from engagement start.

SOC 1 Type 2 Audit

A SOC 1 Type 2 audit covers a defined observation period, most commonly six to twelve months. In addition to the design opinion, the service auditor tests whether controls operated effectively throughout the period. It answers both “Are the right controls in place?” and “Did they work consistently?”

User-entity auditors strongly prefer Type 2 reports because they can use the results to reduce their own substantive testing. A Type 1 provides no evidence of operating effectiveness, so an auditor relying solely on a Type 1 must still perform procedures to satisfy themselves that controls actually functioned. For this reason, a Type 1 report used in isolation has limited practical value for a client’s audit.

Most service organizations start with a Type 1, then move to an annual Type 2 cycle. Once you have a full year of Type 2 history, the engagement becomes repeatable and the client-burden of audit season decreases substantially.

What the SOC 1 Examination Covers

A SOC 1 engagement under AT-C 320 requires four core elements:

1. Management’s description of the system. Your management prepares a description of the services provided, the relevant control objectives, and the controls designed to meet those objectives. The description must meet criteria established in the standard, including completeness, accuracy, and whether it omits known deficiencies.

1. Management’s assertion. Management asserts that the description is fairly presented and, in a Type 2, that the controls operated effectively throughout the period.

1. Service auditor’s procedures. The auditor evaluates the description, tests design (and operating effectiveness for Type 2), and identifies any control exceptions or deficiencies.

1. Service auditor’s report and opinion. The report includes an opinion on whether the description is fairly presented and whether the controls are suitably designed (and, for Type 2, operated effectively). Any control exceptions are disclosed, along with their potential impact.

Control objectives in a SOC 1 are tailored to the services you provide. There is no universal checklist. A payroll processor’s objectives focus on accuracy of gross-to-net calculations, timely tax remittances, and payroll data security. A loan servicer’s objectives center on payment posting accuracy, escrow reconciliation, and investor reporting. Working with an experienced service auditor early in the process helps ensure the right scope is defined from the start.

SOC 1 vs. SOC 2: Which Report Do You Need?

A common point of confusion is whether an organization needs a SOC 1 report, a SOC 2 report, or both. The distinction is straightforward:

• SOC 1 focuses exclusively on controls relevant to user entities’ ICFR. It is relevant when your services could affect a client’s financial statements.
• SOC 2 focuses on the Trust Services Criteria: security, availability, processing integrity, confidentiality, and privacy. It is relevant when clients or prospects need assurance about how you protect their data and maintain system reliability.

Many technology-oriented service organizations need both. A SaaS platform that processes financial transactions may be asked for a SOC 1 by the client’s finance team and a SOC 2 by the client’s information security team. If your clients are asking for both, it is worth exploring whether the two engagements can be coordinated to reduce audit fatigue and documentation overlap.

Modus performs both SOC 1 and SOC 2 examinations and can structure coordinated engagements that cover both report types efficiently.

How to Prepare for a SOC 1 Engagement

Readiness is the most controllable factor in how quickly a SOC 1 audit moves. Organizations that come in with documented controls, clear process narratives, and tested evidence typically complete a first-year Type 2 within four to six months. Organizations that are building documentation from scratch can expect the process to take longer.

Key preparation steps:

• Document your service commitments. Define clearly what services you provide to user entities and what promises, explicit or implied, affect their financial reporting.
• Map controls to objectives. For each control objective, identify the specific controls, the people responsible, and the evidence that demonstrates the control ran (logs, approvals, reconciliation reports, exception reports).
• Assess subservice organizations. SSAE 18 requires you to identify any subservice organizations (vendors whose work flows into your service delivery) and decide whether to use the carve-out or inclusive method for including them in your description.
• Test your own controls. A pre-engagement readiness assessment, either internally or with the help of an advisor, surfaces gaps before the formal examination begins.

Modus brings an AI-native audit approach to SOC engagements, using source-linked workpapers and structured evidence collection to shorten the back-and-forth with client teams. The result is faster report issuance without sacrificing the rigor user-entity auditors expect.

What Happens If You Do Not Have a SOC 1 Report?

The absence of a SOC 1 report does not mean a client’s audit cannot proceed, but it does create friction. The user-entity auditor has two options when no report is available: obtain direct access to your controls and test them independently, or expand substantive testing at the client to compensate for the lack of reliance on your controls.

Both alternatives cost your client time and money. In competitive sales situations, the absence of a SOC 1 can become a genuine deal blocker: enterprise buyers and their finance teams increasingly treat a current SOC 1 Type 2 as table stakes for vendors who touch financial data. Starting the process before a client demands it is almost always the better move.

Related reading: SOC 2 Audit: A Complete Guide for Service Organizations

Frequently Asked Questions

When does a company need a SOC 1 report?

A company needs a SOC 1 report when it provides outsourced services that could affect the financial reporting of its clients. If clients’ external auditors are requesting the report, or if enterprise prospects require it as a condition of vendor approval, the organization falls within scope. Common categories include payroll processors, benefits administrators, loan servicers, fund administrators, and financial ERP platforms.

What is the difference between a SOC 1 Type 1 and Type 2 report?

A SOC 1 Type 1 report provides an opinion on control design as of a single date. A SOC 1 Type 2 report covers an observation period (typically six to twelve months) and includes an opinion on both control design and operating effectiveness. User-entity auditors strongly prefer Type 2 reports because they provide evidence that controls functioned consistently, allowing the auditor to reduce their own substantive testing.

How long does a SOC 1 audit take?

A first-year SOC 1 Type 1 typically takes two to three months from engagement start to report issuance, assuming management’s description and documentation are reasonably complete. A first-year Type 2 requires a minimum observation period (often six months) plus field work and reporting, placing total elapsed time at four to eight months depending on scope and readiness. Subsequent annual Type 2 engagements typically move faster as the documentation baseline is already in place.

What is the difference between a SOC 1 and a SOC 2?

SOC 1 addresses controls relevant to user entities’ internal control over financial reporting (ICFR). SOC 2 addresses controls over security, availability, processing integrity, confidentiality, and privacy using the AICPA Trust Services Criteria. Organizations that process both financial data and sensitive personal data are sometimes asked for both report types by different stakeholders within the same client organization.

What standard governs SOC 1 reports?

SOC 1 reports are governed by the AICPA’s SSAE 18, specifically AT-C Section 320, “Reporting on an Examination of Controls at a Service Organization Relevant to User Entities’ Internal Control Over Financial Reporting.” SSAE 21, effective June 15, 2022, updated certain quality requirements but did not restructure the SOC 1 framework.

Who performs a SOC 1 audit?

Only a licensed CPA firm can perform a SOC 1 examination under SSAE 18. The firm performing the engagement is called the service auditor and must be independent of the service organization. The report is issued to the service organization and is intended for distribution to current user entities and their auditors, not for general public release.