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S-Corp Tax Preparation for Small Businesses

CPA-led Form 1120-S preparation, shareholder K-1s, and reasonable-compensation compliance for small-business S-corporations.

Short version: We prepare your S-corporation return (Form 1120-S), issue shareholder K-1s, and keep you compliant on reasonable compensation and deadlines, led by CPAs, available as a stand-alone engagement or inside your monthly plan.

An S-corp can save owners real money on self-employment tax, but it comes with its own return, its own deadline, and a reasonable-compensation rule the IRS takes seriously. We handle all of it so your election actually pays off.

What we handle for your S-corp

  • Form 1120-S preparation and e-filing
  • Shareholder Schedule K-1s
  • Reasonable compensation analysis for owner-employees
  • Pass-through items reconciled to your books
  • Federal and state filings, kept on schedule
  • Year-round planning, so there are no March surprises

What an S-corp return involves

An S-corporation files Form 1120-S and passes its income through to shareholders on Schedule K-1, so the profit is taxed on your personal return rather than at the corporate level. The return is due March 15 each year, with a six-month extension available to September 15. If you are an owner who works in the business, the IRS requires you to pay yourself reasonable compensation as W-2 wages before taking distributions.

Why work with a CPA on your S-corp

S-corp mistakes are expensive: an unreasonably low salary, a missed March 15 deadline, or distributions that outrun your basis can all draw penalties or an IRS notice. A CPA sets the salary defensibly, files on time, and plans your distributions, so the tax savings are real and the return holds up.

Stand-alone or part of your monthly plan

Need just the 1120-S this year? We will quote a flat fee for the return. Want bookkeeping, payroll, and tax handled together all year? Plans start at $500/month with the S-corp return included. Either way, you work with the same CPA-led team.

Frequently asked questions

When is my S-corp tax return due?

Form 1120-S is due March 15 each year (the next business day if the 15th falls on a weekend or holiday). We can file a six-month extension to September 15 if you need more time, though any tax the owners owe is still estimated and paid by the original deadline.

Do I have to pay myself a salary?

Yes. If you are an owner who works in your S-corp, the IRS requires reasonable compensation paid as W-2 wages before you take distributions. We help you set a salary you can defend and run it through payroll.

Can you handle a first-year or late S-corp return?

Yes. We regularly onboard new S-corps and catch up late or first-year filings, including the payroll and reasonable-compensation pieces that often get missed.

Ready to get your S-corp return handled? Email [email protected], or get a flat-fee estimate with our pricing estimator. No pressure at all on our end.

Related reading

  • Business tax preparation & planning
  • Our bookkeeping services
  • Common small-business tax mistakes
  • Accounting Services Pricing Calculator

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