Calculate your inventory turnover ratio and days to sell inventory. Compare against industry benchmarks and identify improvement opportunities.
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A Texas-based freelance graphic designer earns $140,000 net profit/year from client work. She's evaluating whether to stay as a sole proprietor, form an LLC, or elect S-Corp status to reduce self-employment taxes.
Takeaway: S-Corp saves $8,300/year but adds ~$1,500-$3,000 in accounting fees (payroll, extra returns). Break-even is around $80-90K net profit. Below that, the overhead eats the savings. Texas has no state income tax, so the benefit is purely federal SE savings.
LLC annual fees range from $0 (Ohio) to $800 minimum (California, even for zero-revenue LLCs). Delaware C-Corp is standard for VC-backed companies but adds registered agent costs (~$300/yr) for out-of-state entities. The "best" structure is state-specific.
S-Corps cannot have more than 100 shareholders, cannot have non-US shareholders, and cannot have corporate shareholders. Violating these rules (e.g., adding a foreign investor) terminates S-Corp status retroactively, potentially creating a large unexpected tax event.
The IRS requires S-Corp owner-employees to pay themselves a "reasonable salary" before taking distributions. There is no fixed formula — the IRS looks at industry benchmarks, duties, and hours worked. Setting the salary too low is a common audit trigger for S-Corps.
Business break-even models track revenue vs. direct costs. They rarely factor in the owner's time as a cost. If you're working 60 hours/week at imputed $50/hour, your "profitable" business may be paying you $12/hour after the opportunity cost calculation.
Break-Even CalculatorA service business valued on EBITDA multiples (2-4×) gets a very different number than one valued on SDE (seller's discretionary earnings) or discounted cash flow. Buyers and sellers typically use different methods to argue their preferred price. This calculator uses a single method.
Business Valuation CalculatorBased on your inputs
vs. 5.00× benchmark
| COGS | $500,000 |
|---|---|
| Average Inventory | $75,000 |
| Turnover Ratio | 6.67 |
| Days to Sell Inventory | 54.8 days |
| Industry Benchmark | 5.00× (73.0 days) |
| Performance vs. Benchmark | Excellent |
| Annual Carrying Cost | $22,500 |
| Days to Benchmark | 0 days |
| Cash That Could Be Freed | $0 |
| Potential Carrying Cost Savings | $0 |
Industry Benchmarks
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Varies by industry. Grocery: 8–12×. Clothing: 2–4×. Electronics: 5–10×. Furniture: 1–2×. Higher is generally better—faster cash conversion.
Inventory Turnover = COGS / Average Inventory. Days to Sell = 365 / Annual Turnover (or 90/Quarterly, 30/Monthly).
High turnover = fast cash flow, low storage costs, less obsolescence. Low turnover = cash tied up, high carrying costs, risk of waste.
Storage rent, insurance, spoilage, theft, obsolescence, and cost of capital. Can be 25–35% of inventory value annually.
Reduce excess stock, negotiate shorter lead times with suppliers, implement just-in-time ordering, discount slow-moving items, improve demand forecasting, and drop consistently poor-selling products.
DSI measures how many days it takes to sell through inventory: DSI = 365 / Annual Turnover. A turnover of 6 means inventory sells every 61 days. Lower DSI indicates faster-moving inventory.
FIFO (First In, First Out) sells oldest inventory first, matching physical flow. LIFO (Last In, First Out) sells newest first, lowering taxable income during inflation. FIFO is more common and required under IFRS.
Dead stock is inventory that has not sold for 6-12+ months. It drags down turnover ratio, ties up cash, and incurs carrying costs. Regular dead stock audits and clearance sales prevent buildup.
Higher turnover means faster cash conversion. Money tied up in unsold inventory cannot be used for operations, marketing, or growth. Improving turnover from 4x to 8x effectively doubles your cash flow velocity.
Economic order quantity (EOQ) is the optimal order size that minimizes total inventory costs including ordering and holding costs. EOQ balances frequent small orders against fewer large orders to maintain healthy turnover without stockouts.
Inventory Turnover = COGS / Average Inventory
Days to Sell = 365 / Annual Turnover Ratio
(Use 90 for quarterly, 30 for monthly analysis)
Every formula on this page traces to a federal agency, central bank, or peer-reviewed institution. We cite the rule-makers, not secondhand blogs.
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Calculations are for educational purposes only. Consult a qualified financial advisor for personalized advice.