StructureCost2026

LLC or S corp for a physician in Indiana (2026)

A physician in Indiana with $270,000 of profit pays $86,763 a year in tax and fees as a sole proprietor and $87,596 as an LLC taxed as an S corp, with a $189,000 salary. The S corp starts to pay at about $277,500 of profit.

More settings revenue, salary, filing status, payroll costs, PTET

+$833 a year

more for an LLC taxed as an S corp than a sole proprietorship in Indiana, at these numbers.

Switching from a sole proprietorship to an LLC taxed as an S corp starts to pay at about $277,500 of profit, with the same settings. Setting up costs $95 once in state filing fees. As an LLC taxed as an S corp this uses the state's pass-through entity tax election, which lowers the cost here.

Indiana, 2026: $270,000 profit, single filer

ItemSole propLLC as S corpChange
Self-employment taxirs.gov, 2026 rates$30,553$0−$30,553
Federal income taxirs.gov, 2026 rates$48,719$49,686+$967
State income tax, after the PTET creditin.gov, checked Oct 20, 2026$7,491$5,546−$1,945
Business Entity Reportin.gov, checked Oct 20, 2026$0$16+$16
Payroll tax on your salaryirs.gov, 2026 rates$0$28,639+$28,639
Payroll service and tax return (estimate)$0$1,800+$1,800
Indiana pass-through entity tax, paid by the company (elected)secure.in.gov, checked Oct 20, 2026$0$1,909+$1,909
Yearly cost$86,763$87,596+$833
What these figures count
  • State income tax, and state taxes on the business itself: franchise, LLC, S corp, gross receipts and excise taxes.
  • Social Security and Medicare on both sides of an owner salary, federal unemployment tax and the state's new-employer rate.
  • The 20% qualified business income deduction with its income limits and the professional-service rule.
  • Yearly report fees, and a cost you can change for payroll and the business tax return.

Many S corp calculators leave out state taxes and the QBI deduction, which can make the election look better than it is.

At three profit levels

ProfitSalary usedSole propLLCLLC as S corpC corp
$180,000$126,000$51,963$51,974$53,159$60,371
$270,000$189,000$86,763$86,771$87,596$96,469
$390,000$244,000$139,551$139,561$135,746$142,250

Salary is the BLS median for the job ($244,180), capped at 70% of profit. Revenue 2 times profit. Single filer.

What matters for physicians

What the switch takes in Indiana

  1. File the Articles of Organization (State Form 49459) with the state: $95 (fee).
  2. Get an EIN from the IRS (free, online) and open a business bank account in the new name.
  3. Check the business can elect: no more than 100 shareholders, all of them US citizens or residents (no nonresident alien owners), and one class of stock. IRS
  4. File IRS Form 2553 to elect S corp tax treatment, within 2 months and 15 days of the start of the tax year it should apply to. See how the S corp election works.
  5. Register with Indiana as an employer and run payroll for your own salary: federal Forms 941 each quarter, Form 940 and a W-2 each year. New employers pay Indiana unemployment tax at 2.5% on the first $9,500 of wages. in.gov See what payroll costs.
  6. Federal return each year: Form 1120-S, due March 15, plus your own Form 1040.
  7. State upkeep each year: Business Entity Report, $31 every two years, due End of the anniversary month of formation, every other year.

Questions

Should a physician in Indiana form an S corp?

At $270,000 of profit, not on these figures: the S corp costs $833 a year more than staying a sole proprietor.

Is an LLC worth it for a physician in Indiana?

For tax, a single-member LLC changes nothing: $86,771 a year against $86,763, the difference being Indiana's LLC fees. It separates business liability and is the base for an S corp election.

More

Other professions in Indiana
Other states