The following are 25 Things to Check Before Your LLC/Partnership Switches to an S-Corp (so you legally pay less—without surprises):
Switching to an S-Corporation can be a smart way to cut self-employment taxes and professionalize your business—but it isn’t a one-size-fits-all move. Here are 25 practical checkpoints to review before you file the election. Use this as a pre-flight list, then let RDA Tax Services model the dollars and handle the paperwork.
Entity & Eligibility
- Are you eligible?
S-Corps allow one class of stock, ≤100 shareholders, and shareholders must be U.S. individuals (certain trusts/estates qualify; no partnerships or corporations, no nonresident aliens). - One class of stock traps.
Unequal distribution rights, side agreements, or “equity-like” loans can create a prohibited second class of stock. Keep distributions pro-rata. - State conformity.
Some states require a separate S election or impose entity-level/franchise taxes. Cities may have local business taxes. Know your state/local rules before you flip the switch. - Effective-date timing.
To be S for the year, file by 2 months + 15 days after the start of that tax year (late-election relief may exist). Mid-year switches add payroll/bookkeeping complexity. - How to elect (LLC edition).
An LLC can elect S-Corp status by filing Form 2553 (the classification as a corporation is deemed with the S election). We’ll confirm which path fits your facts.
Taxes, Cash Flow & Compensation
- Reasonable compensation (non-negotiable).
Owner-employees must take W-2 wages that are “reasonable” for their role, geography, and profits. Too low risks penalties; too high may kill savings. We benchmark and document. - Payroll costs vs. savings.
Yes, S-Corps can reduce self-employment tax on profits after paying reasonable wages—but add payroll software, filings, and payroll taxes on the W-2. We model the breakeven. - QBI (199A) interplay.
S-Corp wages reduce QBI, but distributions may still generate a 20% deduction (subject to thresholds/limits). We optimize the mix of wages vs. pass-through income. - Accountable plan required.
Unreimbursed employee expenses aren’t deductible. Adopt an accountable plan to reimburse mileage, home-office, phone, internet, and supplies tax-free. - Health insurance for >2% owners.
Premiums should be added to W-2 Box 1 (not FICA), then the shareholder may claim the self-employed health insurance deduction on the 1040. Set this up right on payroll day one. - Retirement plan leverage.
S-Corps often shine with Solo 401(k) or company 401(k) designs—but contributions depend on W-2 wages. We size compensation to maximize deductions smartly. - HSA coordination.
Company-paid HSA for >2% owners is included in wages; the owner can still take the HSA above-the-line deduction. Small tweak, big difference. - Fringe benefits change.
Some tax-free fringes for rank-and-file are taxable to >2% shareholders (e.g., certain cafeteria plan benefits). Budget accordingly.
Basis, Losses & Debt
- Basis tracking gets stricter.
In partnerships, you often get basis from entity-level debt. In S-Corps, loss deductions are limited to stock basis + direct shareholder loans. No basis from bank loans to the corporation unless you personally loaned/guaranteed and funded correctly. - Distributions vs. draws.
S-Corp distributions are generally tax-free to the extent of basis; exceed basis and you may have capital gain. Keep a running basis schedule. - Loss utilization may shrink.
If you rely on losses, partnership allocations are often more flexible. S-Corps have no special allocations; everything is pro-rata by shares/day.
Operations, Bookkeeping & Compliance
- Payroll setup & cadence.
You’ll file Form 941/940, state unemployment, and possibly workers’ comp. Owners go on payroll (even if cash is tight). Missed payrolls can unwind savings. - Clean books, cleaner savings.
Move from “tax-time spreadsheets” to monthly books. Accurate officer wages, reimbursements, and distributions are the backbone of S-Corp compliance. - Home office via reimbursement.
S-Corps don’t file Form 8829. Use your accountable plan to reimburse home-office costs—no deduction lost. - Loans and leases with owners.
If the owner lends money or leases property to the S-Corp, paper it at market terms to avoid reclassifications and second-class-of-stock issues. - Real estate warning.
Don’t trap appreciating rental real estate inside an S-Corp—distributions of property can trigger tax and complicate exits. Use separate LLCs for holds; keep the S-Corp for operations. - PTE (Pass-Through Entity) SALT workarounds.
Many states let S-Corps pay state income tax at the entity level so the federal deduction isn’t SALT-capped. Evaluate before year-end. - Method of accounting.
Small S-Corps often qualify for cash method, simplifying taxes. Confirm inventory/UNICAP rules don’t force accrual. - Multi-state exposure.
Remote staff, traveling owners, or sales across borders can create nexus and apportionment. Register and file where needed to avoid penalties—and overpaying. - Exit planning (before you enter).
Stock vs. asset sale, goodwill allocations, and earn-out design all change the tax. Plan structure now so you don’t paint yourself into a corner later.
Make the move (only) when the math works
The S-Corp can be a winner when profits are consistently above the “low five-figures” after paying a reasonable wage, and when you’ll actually run payroll and keep clean books. The wrong setup—or sloppy execution—can erase the savings quickly.
This is exactly what we do.
RDA Tax Services will:
- Model wages vs. distributions, payroll costs, and QBI to show your real after-tax outcome.
- File the election(s), implement payroll, and install an accountable plan.
- Maintain basis schedules and year-round planning (health, retirement, PTE tax, multi-state).
Bottom line: Don’t guess your way into an S-Corp.
👉 Book a FREE S-Corp Readiness Review with RDA Tax Services and switch only when it saves you money—by design, not by accident.