Form 990 Preparation - Stainless Books

Form 990 Services

Accurate. Timely. Mission-Aligned.

At Stainless Books, we believe your Form 990 should tell the story of your impact—not just your income. We offer preparation exclusively for active monthly clients whose books we already manage. That means no back-and-forth, no surprises, and no scrambling at tax time.

Who This Is For

Form 990 preparation is available to nonprofits enrolled in our:

Insight Package
Vision Package

We do not prepare Form 990s for organizations whose books we do not maintain. This ensures accuracy, compliance, and a return that truly reflects your financial story.

What’s Included

We prepare the full Form 990 (or 990-EZ, depending on eligibility), including:

Core return preparation
Required schedules based on your activities
Internal consistency review
Electronic filing with the IRS

Optional add-ons are available (see below).

Pricing

Pricing is tiered based on your organization’s size and filing complexity. You’ll receive a flat fee quote before work begins—no hourly guessing games here.

Additional Filing Options

Why Clients Choose Stainless Books for Form 990

Your books are already clean and accurate because we manage them.
No onboarding a new preparer or explaining things twice.
Reduced risk of audit triggers, late filings, or missed details.
A return that reflects the strength and structure of your mission.

Let’s simplify tax season.

As a monthly client, you don’t need to hunt down a separate preparer. We already know your numbers and your story—let’s take care of your 990 together. Just let us know when you're ready and we’ll guide you through next steps.