Guides
LLC S Corp Election Deadline and Rules: When It Beats Default Tax Status
The LLC S corp election deadline is 75 days from formation or the start of the tax year. We compare default LLC tax status against a Form 2553 election.
What to take away
- An LLC can elect S corp status by filing IRS Form 2553 no more than 75 days after formation or the start of the tax year it wants the election to apply.
- The election changes payroll and self-employment tax treatment, not liability protection, and it adds a reasonable salary requirement.
- Default status is simpler and cheaper to run; the election can reduce self-employment tax above a rough income band, often cited around $60,000 to $80,000 of net profit.
- Missing the deadline does not end the option. Late relief exists under Revenue Procedure 2013-30, but the paperwork grows.
- Neither route fixes a weak operating agreement or commingled funds.
What is being compared
Two federal tax postures for the same state-law entity. A multi-member LLC is a partnership by default; a single-member LLC is a disregarded entity, as the IRS explains for single-member LLCs. Profits flow to the owner's Form 1040 and carry self-employment tax on the full net amount.
An S corp election keeps the LLC in place but taxes it under Subchapter S. The owner takes a wage, pays payroll taxes on it, and takes the rest as a distribution that generally escapes self-employment tax. The election is filed on Form 2553, the Election by a Small Business Corporation.
The criteria that matter
Default LLC status
- Filing needed
- None beyond the return
- Deadline
- Not applicable
- Self-employment tax
- On all net profit
- Payroll obligation
- None
- Owner count
- One or more
- Accounting cost
- Lower
- Eligibility limits
- None
S corp election
- Filing needed
- Form 2553, plus payroll setup
- Deadline
- 75 days from formation or tax year start
- Self-employment tax
- On reasonable salary only
- Payroll obligation
- Required for the owner-employee
- Owner count
- Capped at 100, all US-resident individuals
- Accounting cost
- Higher, with payroll and filings
- Eligibility limits
- No partnerships, corporations or nonresident alien owners
Option by option
Default status wins on effort. There is no election form, no payroll service, and no reasonable compensation analysis to defend. A single owner files Schedule C and the numbers on the return match the bank account. For a business netting $30,000 a year, the self-employment tax saved by electing rarely covers the added accounting and payroll cost.
The S corp election wins where profit is steady and well above the salary an owner would otherwise pay. The IRS expects the wage a comparable business would pay for the work. It has won cases where owners took distributions only.
The instructions for Form 2553 set out the timing rule and relief path.
Filing Form 2553
- Confirm eligibility and written owner consent
- File Form 2553 within 75 days
- Set up payroll and EIN
- Adopt a defensible compensation figure
- Document minutes and distributions from year one
The 75-day clock is the whole article. Miss it and you are filing a late election with a reasonable cause statement, not a fresh election.
The entity type selection case study walks through how one owner weighed these same trade-offs before filing anything.
Where each one wins
Default status is right for a solo owner under roughly $60,000 of net profit, for a business with volatile income, and for anyone who does not want a payroll cycle. It is also the only sensible choice for an owner who is not a US resident or who wants a partner that is a trust or corporation.
S corp status is right for a profitable service business with one or two working owners, predictable profit, and a wage that is clearly less than total profit. It also suits owners who already run payroll for employees, since the marginal setup is small.
A reader comparing structures should read corporation formation questions before committing, because the C corporation alternative changes the analysis entirely.
- Owners are eligible and all have consented
- Payroll account and provider are ready
- A defensible salary figure is written down
- The 75-day window is marked on a calendar
What none of them solve
Both routes leave the owner exposed on the same points. Neither prevents personal liability if the LLC is undercapitalized, if funds are commingled, or if the entity is treated as an alter ego. Neither reduces state franchise or annual report fees, which are set by state law and vary widely; the SBA registration guide lists the annual obligations by state.
Both also fail to fix a missing operating agreement. A single-member LLC in particular may find that lenders and state courts want a written agreement even where the state does not require one, as covered in single-member LLC operating agreement rules.
