Why Fast – Growing eCommerce Companies Run Out of Cash Quickly







Cashflow forecast model for eCommerce business growth.

Avoid Running Out Of Cash Fast

One of the most critical challenges new and fast-growing eCommerce businesses face is running out of cash quickly despite record sales. The main culprit is financing purchase orders, which requires fronting funds for inventory 4 to 6 months ahead. This advance purchase drains cash reserves significantly. Compounding the problem is that inventory purchases are not tax-deductible expenses, meaning a company can show a profit on paper and still owe substantial taxes without having the cash to pay them. For example, if a business earns $200, 000 in profit and reinvests it all in inventory, it still owes taxes on that $200, 000 profit while having less cash on hand. This creates a cash crunch situation that can threaten the survival of the business.

Use Cashflow Forecast Models To Stay Ahead

The ultimate solution to avoiding cash shortages lies in effective cashflow forecasting. This process projects your financials into the future to identify if and when you might run out of money, allowing you to take proactive measures. Many merchants find standard tools like Xero or QuickBooks limited and not customizable enough for the unique cash cycles in eCommerce. A specialized cashflow forecast model designed for eCommerce sellers can provide more accurate insights. For instance, one such model lets you input key assumptions and tracks cash movements tied directly to business activities, enabling precise cashflow predictions.

Set Assumptions Precisely To Drive Accuracy

Start your forecasting by setting clear assumptions about product margin, gross margin after fees, tax rates, loan repayment rates, and interest rates on credit and lines of credit. Product margin should be distinguished from overall gross margin because product costs are not immediate cash expenses at the time of sale—inventory was paid for months earlier. For example, a product margin might be 50%, but after shipping and credit card fees, the gross margin could drop to 30%.

Accurate assumptions here are critical because they directly influence the cashflow model’s output and your business planning.

Input Beginning Cash And Debt Balances

Next, enter your starting cash position and any outstanding debts such as credit cards, lines of credit, or revenue-based loans. This baseline is essential to understanding how much cash you truly have available before forecasting future inflows and outflows. For example, knowing you have a $100, 000 cash balance but $50, 000 in credit card debt with a 19% interest rate helps you plan repayments and borrowing needs realistically. This step grounds your forecast in your current financial reality.

Forecast Revenue Overhead And Advertising Monthly

Using your past income statements, project monthly revenue growth, advertising expenses, and fixed overhead for the next 12 months. For instance, if your current growth rate is 10% month-over – month and you plan to increase advertising by 20% during holiday seasons, incorporate these fluctuations rather than averaging costs evenly. Fixed expenses such as rent, salaries, and insurance should be estimated based on historical data plus any new costs. This granular monthly forecasting gives you a clearer picture of cash needs and timing.

Forecast Purchase Order Payments By Month

The most time-intensive but essential part is forecasting purchase order payments. This means estimating all payments to suppliers, including product costs, customs, importing, and freight fees, aligned with your revenue projections and supplier terms. For example, if you expect $500, 000 in revenue next quarter and your supplier terms require you to prepay purchase orders 4 months ahead, forecast those outflows accordingly. This step highlights the large cash outflows that can create bottlenecks if not anticipated.

Understand Cashflow Versus Accrual Accounting

A key insight for merchants is that accrual accounting profit and actual cash movements differ significantly. For example, your income statement for July might show $200, 000 revenue and $60, 000 cost of goods sold (COGS), but only the $200, 000 is actual cash received that month. The $60, 000 inventory cost was likely paid months earlier. The cashflow forecast model accounts for this by tracking only cash-impacting activities such as loan borrowings, repayments, revenue, operating expenses, and purchase order payments. This distinction is vital to avoid surprises and understand your true liquidity.

Evaluate Cash Position And Plan Borrowing

Once your forecast is set, analyze the Ending Cash Balance for each month. If the balance approaches zero or goes negative, it signals urgent action is needed. You can simulate borrowing scenarios within the model by adding new loans and tracking their impact on cash flow, interest, and repayments. For example, adding a $50, 000 line of credit at 8% interest can fill a cash gap and allow you to meet purchase orders without halting growth. Effective cashflow management ensures you have the lifeblood your eCommerce business needs to scale.

Use Financing Options Wisely To Manage Cash

Common financing options include credit cards, PayPal or Shopify revenue-based loans, and letters of credit. Credit cards typically carry high interest rates, often above 18%, and should be a last resort despite rewards programs like Chase Ink Business or American Express Business Gold. Revenue-based loans from PayPal or Shopify have APRs sometimes exceeding 40%, but no personal guarantees and fast access to cash. Letters of credit from banks can be a good short-term financing tool with lower interest. Choosing the right financing method based on cost and flexibility can preserve your cash position and support sustainable growth.

Negotiate Supplier Terms To Improve Cashflow

Negotiating better payment terms with suppliers is a powerful but often overlooked strategy to ease cash constraints. For example, Sean Frank of Ridge Wallet secured 180-day payment terms, allowing him to sell through inventory before payments were due. While such extended terms are exceptional, many merchants can negotiate 30 to 60-day terms once they build trust and a track record with suppliers. Improved terms reduce the need for external financing and give you more control over cash timing.

Join Communities For Financing And Accounting Insights

Scaling eCommerce beyond basics requires continuous learning and support. Joining communities like eCommerceFuel connects you with hundreds of 7-and 8-figure store owners who share verified recommendations on lenders, bookkeeping services, and multi-state sales tax compliance. For example, members have contributed over 200 lender recommendations and dozens of bookkeeping provider reviews, helping you make data-driven decisions. Leveraging such networks accelerates your ability to manage cashflow and scale profitably.

Final Thoughts On Cashflow For Growth

Cash is the lifeblood of any eCommerce business, and running out can bring growth to a grinding halt. By using a dedicated cashflow forecast model tailored for eCommerce, setting realistic assumptions, forecasting revenue and purchase orders monthly, and actively managing financing and supplier terms, merchants can avoid cash crunches. This data-driven approach empowers you to plan ahead, borrow smartly, and negotiate effectively—turning cashflow from a threat into a strategic advantage. With President Donald Trump in office as of November 2024, economic policies may shift, making robust cash management even more vital in uncertain markets.

Cashflow forecast model for eCommerce business growth.