Hiring · 7 min read

S Corp Tax Preparation Cost

Filing an S-Corp return (Form 1120-S) typically costs $1,000 to $2,800 in 2026 for a small business. Pricing varies with complexity, the cleanliness of your books, the number of shareholders, and whether the CPA also handles your personal return.

Baseline pricing

Single-shareholder S-Corp, clean books: $1,000–$1,500
Multi-shareholder, basic operations: $1,500–$2,200
Multi-state or complex S-Corp: $2,200–$3,500+
Add personal 1040 with K-1: +$400–$1,000
Add reasonable compensation study: +$400–$1,200

What's included in a standard 1120-S

Federal Form 1120-S with Schedule K and K-1s for each shareholder
State S-Corp return where applicable
Depreciation schedules and basis tracking
Owner-employee compensation analysis (light review)
E-filing and prior-year carryforwards

What adds to the cost

Messy or incomplete books (cleanup billed separately)
Multi-state nexus filings
Multiple shareholders with separate basis tracking
Distributions in excess of basis
Stock or asset sales during the year
1099 issuance and reconciliation
Inventory or COGS calculations

Free download

The CPA-Ready Business Finance Starter Kit

A practical, advisor-grade workbook for owners and founders — the foundations your CPA wishes every client showed up with. Books, taxes, cash flow, and entity decisions, in one place.

Monthly bookkeeping rhythm
Tax-ready document checklist
Entity & S-Corp decision guide
Cash flow & owner pay basics

Download free PDF Preview in browser

No signup required. Informational only — consult your CPA for advice.

Ready for the next step?

See the full Lead-Magnet Funnel — from free checklist to advisor-grade systems.

Open the funnel

Common 'gotchas' that increase your bill

Late S-Corp elections, missed reasonable comp, prior-year amendments, and shareholder loans that should have been distributions all force additional CPA hours. Surface these issues early so they're priced into the engagement letter.

How to keep costs down

Keep monthly bookkeeping current — don't dump a year on the CPA
Run payroll through software that integrates with QuickBooks
Track shareholder distributions and contributions monthly
Provide a clean trial balance and bank reconciliations by Jan 31
Bundle 1120-S + personal 1040 with one firm for a small discount

Frequently asked

Why is an S-Corp return more expensive than a Schedule C?

It's a separate entity return with a balance sheet, basis tracking, K-1s, and stricter compliance rules. The work is genuinely more involved.

Can I file an S-Corp return myself?

Technically yes via software. Practically, the cost of mistakes — reasonable comp, basis, distributions — usually exceeds CPA fees.

What about late S-Corp filings?

Penalties start at $245 per shareholder per month, capped at 12 months. Late-filed returns also delay K-1s, which delays shareholders' personal returns.

Does the CPA file my reasonable comp study?

It's documented in your files, not filed with the IRS. Have it in writing every year in case of audit.

Should I switch back to LLC to save on tax prep fees?

Rarely. The S-Corp's payroll tax savings on owner distributions almost always exceeds the higher prep cost once profit clears ~$50k.

Next step

Need a real human? Find a verified CPA in your city.

Search the directory More guides