S corp tax returns for sellers, prepared from reconciled books.
If your store elected S corporation status, it files Form 1120-S each year and gives each shareholder a Schedule K-1. We prepare both from the books we close, with owner payroll reconciled, your 1099-K tied out and inventory carried into cost of goods sold. $999 a year with a bookkeeping plan, one state return included.
Free books review · written quote · every return approved by you before it is filed
Form 1120-S draft from the closed books
| Net receipts, all channels | 684,900.00 |
|---|---|
| Cost of goods sold | (298,700.00) |
| Gross profit | 386,200.00 |
| Owner salary through payroll | (90,000.00) |
| Fees, ads, shipping and other expenses | (188,400.00) |
| Ordinary business income | 107,800.00 |
| Expenses tied to the ledger | 278,400.00 ✓ |
| Shareholder · Schedule K-1 · 100% | 107,800.00 · K-1 |
Also checked 2026
- Payroll tied to the ledger ✓
- Distributions kept out of expenses ✓
- 1099-K gross tied to sales ✓
- Year-end inventory counted ✓
15th day of the 3rd month, calendar year; next business day if it falls on a weekend or legal holiday
Illustrative figures — demo store, not a client
Your store elected S corporation status.
Corporations and LLCs whose Form 2553 election was accepted by the IRS.
Profit passes through, so the books have to be right.
Every figure on your K-1 lands on your own return, so it starts with books that tie out.
Profit passes through to you
S corporations pass income, losses, deductions and credits through to their shareholders, who report them on their own returns from Schedule K-1.
Read the answer →Payroll and distributions kept apart
Owner salary runs through payroll; money you take out beyond that is a distribution, not an expense. Your books keep the two apart all year, so the return starts clean.
See payroll →Your 1099-K, tied out from the books
The IRS says the gross amount on a Form 1099-K isn't adjusted for fees, credits, refunds, shipping or discounts. We start from that same gross figure and show every deduction down to your payouts, so the return reports what you actually earned.
Read the answer →Inventory and cost of goods sold
When merchandise is an income-producing factor, the IRS instructions generally have you count inventory at the start and end of the year. We carry your counted stock and landed cost straight into the cost of goods sold.
Read the answer →From closed books to a K-1 you can file with.
Prepared, reviewed, and approved by you before it is filed.
- Year-end close and inventory count January
- Payroll reconciled to the ledger January
- 1099-K tied to recorded sales January
- Form 1120-S, with cost of goods sold Yearly
- A Schedule K-1 for each shareholder Yearly
- One state return Yearly
- Form 7004 extension by the due date, when needed As needed
Your books close by day 15 of each month, which matters most for a March due date.
Profit & Loss — September
| Amazon sales | 38,420.00 |
|---|---|
| Shopify sales | 21,760.00 |
| eBay sales | 4,310.00 |
| Net sales | 64,490.00 |
| Cost of goods sold | (23,190.40) |
| Marketplace fees | (9,874.15) |
| Gross profit | 31,425.45 |
Sample · illustrative figures · not a client
S corp returns, priced per year.
Form 1120-S is $999 a year with a bookkeeping plan, or $1,499 on its own, with one state return included. Each extra state is $149; any fee a state itself charges is separate. Your own Form 1040 can be added. Yours is confirmed in writing after your free books review.
| Return | With a plan | Tax only |
|---|---|---|
| Form 1120-S S corporation returnOne state return included; a Schedule K-1 for each shareholder · per year | $999 | $1,499 |
| Owner's Form 1040Your personal return alongside a partnership or S corporation return · per owner, per year | $349 | $499 |
| Each extra state returnEach further state return filed alongside your federal return · per state, per year | $149 | $149 |
| Quarterly estimated tax figuresEach quarter's estimate worked out from your closed books · per quarter | $79 | $129 |
| Extension of time to fileForm 4868 or Form 7004, by the regular due date | Included | |
| 1099-K reconciliationEach Form 1099-K tied to your recorded sales | Included | |
| Prior-year or missed returnBooks for the year caught up first | That year's return price, plus catch-up books at $149 a month behind | |
Catch-up bookkeeping
Behind on your books? We bring the missing months current first; a March due date leaves little room. See catch-up →
Four steps to books you can trust.
Free books review
You send the access invitations. We look at where your books stand.
Quote in writing
Your plan and price, before you commit to anything.
Catch-up
Missing months brought current and reconciled.
Monthly close
Books closed every month, reports in your inbox.
Your return starts in the books we already keep.
We prepare from your own QuickBooks Online or Xero file, with settlements brought in through A2X or Link My Books.
Works with
Product names belong to their owners.
Answers for S corp sellers
Form 1120-S explained for online sellers
Who files it, when it is due, and the K-1s.
Read the answer → AnswerDoes an LLC get a 1099?
It depends on how the LLC is taxed.
Read the answer → AnswerWhy doesn't my 1099-K match what I actually made?
Gross payments before fees and refunds, and how to tie it out.
Read the answer → AnswerHow to calculate cost of goods sold for an online store
Beginning inventory, purchases, ending inventory, with landed cost.
Read the answer →Self-employment tax calculator →Quarterly tax calculator →
Behind on your books? See catch-up bookkeeping →Get my free books review →Or check your books yourself with the free self-check →
Sources
- IRS — Instructions for Form 1120-S (2025) · fetched 2026-10-20
- IRS — S corporations · fetched 2026-10-20
- IRS — Instructions for Form 7004 (Rev. December 2025) · fetched 2026-10-20
- IRS — What to do with Form 1099-K · fetched 2026-10-20
- IRS — Estimated taxes · fetched 2026-10-20
S corp return questions
Who files Form 1120-S?
A corporation or other entity that elected to be an S corporation by filing Form 2553, where the IRS accepted the election and it is still in effect.
When is Form 1120-S due?
By the 15th day of the 3rd month after the tax year ends: March 15 for a calendar year, moved to the next business day when it falls on a weekend or legal holiday. For 2025 returns that was March 16, 2026.
Can we get more time?
Yes. Form 7004, sent by the regular due date, gives an automatic extension of time to file, generally 6 months. It does not extend the time to pay tax.
Do I still file my own return?
Yes. Your share of the profit comes to you on Schedule K-1 and goes on your own Form 1040. We prepare it alongside the S corp return for $349 with a plan.
Do you prepare returns in my state?
Yes. We prepare S corporation returns for businesses in 49 states: every state but Nevada. One state return is included; each extra state is $149.
How much does an S corp return cost?
$999 a year with a bookkeeping plan, or $1,499 on its own, with one state return included. Each extra state is $149.
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