Ecommerce Budget Template

Getting started takes about 15 minutes. Download the .xlsx file and open it in Excel or Google Sheets — no macros or plugins required. Start with the Monthly Budget sheet: review the pre-loaded revenue channels and expense categories, then adjust them to match your store's setup. If you only sell on Shopify DTC and don't use Amazon, remove the marketplace rows. If you use a 3PL, make sure the fulfillment section matches your rate card. Most store owners keep 80% of the categories as-is and modify a handful of line items.

Once the structure looks right, enter your projected revenue and expenses for the current month. Use last month's bank statements and your ad platform reports as a baseline — the numbers don't need to be perfect to be useful. Then fill in the SKU Margin sheet with your top products or product categories: enter cost per unit, selling price, and variable fees. This gives you a clear picture of which products are carrying the margin and which ones are quietly losing money after fulfillment and fees.

The value compounds over time. Come back each month and enter your actuals in the Budget vs Actual sheet — this takes about 20 minutes with your Shopify, Amazon Seller Central, and ad platform reports open. You'll quickly see if ad spend is outpacing revenue growth, if fulfillment costs are creeping up as order volume rises, or if returns are running higher than budgeted. Ecommerce businesses that track variance monthly make faster decisions on when to scale ad spend, when to renegotiate with their 3PL, and when a product line isn't profitable enough to keep.

Ecommerce margins are thin and move fast. Most online stores operate at 30–55% gross margin and 5–15% net margin — which means a 5% increase in ad costs or fulfillment rates can cut your net profit in half. The biggest problem isn't that store owners don't know this. It's that without a structured budget, the numbers are spread across Shopify analytics, Meta Ads Manager, Google Ads, Amazon Seller Central, and a 3PL dashboard — and nobody is looking at the full picture in one place.

A proper ecommerce budget breaks spending into the categories that actually drive profitability. COGS and packaging are your foundation — gross margin tells you how much room you have before variable and fixed costs. Fulfillment and 3PL fees are often underestimated: a $30 product with $8 shipping and $4 in packaging leaves $18 before you've spent a dollar on acquiring the customer. Platform fees compound on top of that: Shopify's 2.9% + $0.30 per transaction, Amazon's 15% referral fee, and any FBA fees if you use fulfillment by Amazon. Then ad spend, which is the variable you have the most control over but also the most leverage to misallocate.

The workflow that works is plan, track, and adjust on a monthly cycle. Set your ad budget as a percentage of projected revenue — most healthy ecommerce businesses spend 10–20% on paid acquisition. Compare that to your actual CAC at month-end. If you're spending $40 to acquire a customer with a $60 AOV and a 30% gross margin, the math doesn't work unless repeat purchase rate is high. This template is built around that operational logic: revenue by channel, costs by category, SKU-level margin analysis, and a monthly comparison that shows you where the plan broke down and where you need to adjust.