Tax strategies
What changes when your business nets $100,000 or more.
Once your business is netting six figures, the tax strategies that actually move the needle change. The S-corp election becomes worthwhile. The Solo 401(k) becomes a serious deduction. The cost of doing nothing — or doing it wrong — compounds every year.
This is a factual breakdown of the eight strategies most relevant to businesses netting $100,000 or more, written by Raman Singh, EA, CFP®.
$10K–$30K+
Typical annual tax savings
From S-corp election + retirement plan, for businesses netting $100,000–$300,000 per year
Dec 31
The real tax deadline
Most strategies — retirement contributions, entity elections, income timing — require action before year-end, not April
1 team
What makes it work
Bookkeeping and tax planning on the same data, watching the same numbers, acting in real time
The strategies
Eight decisions that matter most at $100K+ net.
01
Potential savings
$5,000–$20,000+/yr
S-corp election + reasonable salary
Who it applies to: Sole proprietors and single-member LLCs netting $60,000 or more
Self-employment tax is 15.3% on the first $184,500 of net earnings (2026) and 2.9% above that. An S-corp owner pays FICA only on their W-2 salary — not on total distributions. At $100,000 in net profit with a $50,000 reasonable salary, the SE tax savings are typically $6,000–$8,000 per year. At $200,000 in net profit, savings often reach $12,000–$15,000. The salary must be documented and defensible. The IRS audits S-corps specifically on this issue.
Note: The reasonable salary is the most common S-corp audit trigger. It must be set using documented comparables — not just whatever minimizes taxes.
02
Potential savings
Up to $26,640 in federal tax saved (2026)
Solo 401(k) contributions
Who it applies to: Self-employed owners and S-corp owners without other full-time employees
A Solo 401(k) allows contributions both as employee ($24,500 in 2026, or $32,500 if 50+, or $35,750 if age 60–63 under SECURE 2.0) and as employer (25% of W-2 wages for S-corp owners). At $100,000 in net income, a sole proprietor can typically contribute $40,000 or more in total. Each dollar contributed reduces taxable income dollar-for-dollar. At a 24% marginal rate, a $40,000 contribution saves $9,600 in federal tax that year alone — and at higher income levels, savings compound significantly.
Note: The employer contribution deadline is the business tax return due date (including extensions). The employee deferral must be elected before December 31 of the plan year.
03
Potential savings
Up to 20% of qualified business income
Section 199A QBI deduction
Who it applies to: Pass-through business owners — most netting under $403,500 MFJ (2026) qualify in full
The QBI deduction allows eligible pass-through owners to deduct up to 20% of qualified business income before applying the standard or itemized deduction. At $100,000–$400,000 in net income, most business owners are below the phase-out thresholds and qualify for the full deduction. For Specified Service Trades or Businesses (consulting, financial services, law, health), the deduction phases out between $403,500 and $553,500 (MFJ, 2026). At $100,000 in QBI, a 20% deduction means $20,000 less in taxable income. Accurate monthly books are required — the deduction is calculated on net qualified business income.
Note: Misclassifying your business as a non-SSTB when it qualifies as one is an audit risk. Conversely, incorrectly assuming you don't qualify can leave money on the table.
04
Potential savings
Avoids underpayment penalties + cash flow optimization
Quarterly tax planning — not just estimated payments
Who it applies to: Any business with variable or growing income
Most business owners treat quarterly estimated payments as a compliance obligation — they pay prior-year safe harbor and move on. A business netting $100,000+ benefits from recalculating estimates quarterly based on actual YTD numbers. If Q3 was unexpectedly strong, you accelerate a retirement contribution before Q4. If income fell, you lower Q4 estimates and preserve cash. The difference between safe harbor and actual tax optimization is real money at this income level.
05
Potential savings
Full first-year deduction on qualifying assets
Section 179 + bonus depreciation timing
Who it applies to: Businesses purchasing equipment, software, or vehicles
Section 179 allows immediate expensing of qualifying business property up to $2,560,000 in 2026. Bonus depreciation is 100% in 2026 — made permanent by the One Big Beautiful Bill Act — providing full first-year deductions on most depreciable assets. The key is timing: a purchase placed in service on December 31 generates the same deduction as one placed in service on January 1 — but knowing whether you need the deduction this year requires knowing your YTD tax position. That requires clean books.
Note: Vehicle deductions are subject to luxury auto limits and require documenting business use percentage. Passenger vehicles have stricter rules than trucks, vans, and SUVs over 6,000 lbs GVWR.
06
Potential savings
Converts personal expenses to deductible business expenses
Accountable plan (S-corp owners)
Who it applies to: S-corp owners who use personal funds for business expenses
An S-corp cannot deduct expenses paid personally by the owner — they must flow through the corporation. An accountable plan is a written policy that allows the S-corp to reimburse the owner for documented business expenses tax-free. Home office, business-use vehicle, phone, and professional expenses paid personally can be reimbursed through the corporation, reducing W-2 income and FICA taxes. Without a plan, these expenses may be non-deductible at the entity level.
07
Potential savings
100% of premiums deducted from gross income
Self-employed health insurance deduction
Who it applies to: Self-employed owners and S-corp owner-employees
Self-employed business owners can deduct 100% of health, dental, and vision insurance premiums paid for themselves and their families. For S-corp owners, the premiums must be included in W-2 wages and then deducted on the personal return. The deduction reduces adjusted gross income — not just taxable income — which can also affect the QBI deduction calculation, self-employment tax, and income-based phase-outs. At $100,000–$200,000 in net income, this deduction is often worth $3,000–$8,000 per year.
08
Potential savings
Variable — depends on structure and income
Entity structure review
Who it applies to: Businesses with multiple revenue streams, real estate, or intellectual property
At $150,000+ in net profit, a single operating entity is not always optimal. Management companies, holding companies, or separate entities for real estate holdings can provide liability protection and tax planning opportunities. Family employment strategies, where appropriate, can shift income to lower-bracket family members. These strategies involve real complexity and real risk if done incorrectly — they require integrated bookkeeping, clean financials, and an advisor who understands both the tax and financial planning implications.
Note: Entity structure changes have tax, legal, and operational consequences. Review by both a tax professional and a business attorney is appropriate before restructuring.
The foundation
Every strategy on this page requires clean books.
S-corp reasonable salary
Requires knowing actual net profit to set a defensible salary. Reconstructed books at year-end are not the same as monthly reconciled financials.
Solo 401(k) contribution
The contribution limit for S-corp owners is based on W-2 wages. For sole proprietors, it's based on net self-employment income. Both require accurate, current figures.
Section 199A QBI deduction
Calculated on net qualified business income. If your books are wrong, your QBI deduction is wrong — and the IRS will notice.
Quarterly tax planning
You can't adjust Q3 estimated taxes based on YTD results if you don't have Q3 books. Safe harbor is the fallback when real data isn't available.
Section 179 timing
The decision to buy equipment in December vs. January requires knowing your YTD tax position. That requires a current P&L.
Entity structure decisions
Restructuring requires clean historical financials, accurate entity-level reporting, and an advisor who can model the before/after tax impact.
Common questions
At what net income level does tax planning start to pay for itself?
For most businesses, the S-corp election math turns positive around $60,000–$80,000 in net profit. The Solo 401(k) is valuable from the first dollar of self-employment income. At $100,000+ in net income, the combination of S-corp savings, retirement plan deductions, and QBI deductions often totals $10,000–$25,000+ in annual tax savings — many times the cost of professional bookkeeping and tax planning.
Can I do tax planning if my books are behind?
Catch-up bookkeeping is the starting point for most new clients who come to us mid-year or with a backlog. We scope and complete the catch-up first, then move into ongoing monthly service. The sooner the books are current, the sooner the planning opportunities become actionable.
Do these strategies work for 1099 contractors?
Yes — 1099 contractors and consultants are the most common clients who benefit from these strategies. Self-employment tax is a significant burden on 1099 income, the S-corp election directly addresses it, and the Solo 401(k) provides substantial deduction capacity. At $100K+ in 1099 income, these strategies are often the highest-return financial decisions available.
What if I already have a CPA doing my taxes?
The question isn't whether you have a CPA — it's whether your books and tax work are integrated. If your bookkeeper and tax preparer are separate vendors who don't share real-time data, the strategies on this page require someone to bridge them. Cleared is the practice where that's already built in — the same team reads your books and executes your tax strategy.
Your books and your tax strategy should be run by the same team.
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