What is Open-to-Buy Report?

Definition

An Open-to-Buy Report is a retail planning report that shows how much additional inventory a business can purchase during a defined period while staying within its merchandise budget. It connects planned sales, inventory levels, markdowns, and purchasing commitments to help buyers determine available purchasing capacity.

Open-to-buy planning is particularly important for retailers managing seasonal merchandise, changing customer demand, and inventory investment. A well-structured report helps buyers understand how much inventory can still be committed without exceeding planned stock levels or tying up more working capital than intended.

Table of Contents

How an Open-to-Buy Report Works

An Open-to-Buy Report compares the inventory position a retailer expects to have with the inventory position it plans to maintain. The calculation normally considers planned sales, planned markdowns, planned ending inventory, and beginning inventory for the relevant period.

The standard formula is:

Open-to-Buy = Planned Sales + Planned Markdown + Planned Ending Inventory − Beginning Inventory

For example, suppose a retailer plans $500,000 in sales, $50,000 in markdowns, and $300,000 of ending inventory, while beginning inventory is $400,000. The open-to-buy amount is $500,000 + $50,000 + $300,000 − $400,000 = $450,000. This means the retailer can plan approximately $450,000 of additional merchandise purchases for the period, subject to its specific planning policies and existing commitments.

Key Components of Open-to-Buy Planning

  • Beginning inventory: The merchandise value available at the start of the planning period.
  • Planned sales: Expected sales revenue that determines how much inventory is likely to leave the business.
  • Planned markdowns: Expected reductions in merchandise value from discounts, promotions, or clearance activity.
  • Planned ending inventory: The inventory level the retailer wants to hold at the end of the period.
  • Open-to-buy balance: The resulting purchasing capacity available for additional merchandise commitments.

These components can be organized by department, product category, store, channel, or month. More detailed segmentation allows buyers to align purchasing capacity with actual merchandise plans rather than relying only on an overall company budget.

Open-to-Buy and Procurement Decisions

The report supports the procurement process by connecting merchandise plans with purchasing activity. Once available purchasing capacity is established, buyers can evaluate requisitions, supplier proposals, and purchase commitments against the remaining budget.

A purchase order should be considered alongside open-to-buy availability because an approved order represents a future merchandise commitment. If several orders are already placed but not yet received, the report should account for those commitments according to the retailer's planning methodology.

Organizations evaluating purchasing workflows may also examine an Open Source PO System: Options, Use Cases & Deployment when considering how purchase-order processes can support purchasing visibility and control.

Open-to-Buy, ERP, and Financial Planning

Open-to-buy reporting often depends on merchandise, purchasing, inventory, and financial data flowing consistently through an ERP. ERP integration allows planning teams to connect purchase commitments with inventory records, budgets, sales information, and reporting structures.

When evaluating ERP capabilities, resources such as Best Free ERP Software 2026: Tools & Comparison can provide context for comparing ERP options and their reporting capabilities. Similarly, When to Move from Free ERP to Paid is relevant when an organization is assessing whether its current ERP can support expanding finance, inventory, and purchasing workflows.

Accurate ERP data is important because an open-to-buy balance can change as sales forecasts, inventory receipts, purchase commitments, or markdown plans are updated.

Open-to-Buy and Purchasing Workflows

The broader Buy Side Process covers activities through which an organization identifies requirements, evaluates suppliers, negotiates purchases, approves commitments, and completes purchasing transactions. Open-to-buy reporting provides a financial planning layer within that broader workflow by showing the purchasing capacity available for merchandise.

Buy Side Outreach is more closely associated with communication and engagement within payments and transaction workflows, but it can also form part of broader commercial processes surrounding purchasing relationships. Keeping these activities connected to transaction records improves visibility across the purchasing lifecycle.

Promotional merchandise can also create tax considerations. For example, Buy One Get One Tax Rules address how certain promotional transactions may be treated for tax purposes, making them relevant when promotions affect sales, pricing, and merchandise planning.

Best Practices for Open-to-Buy Reporting

Open-to-buy reporting works best when merchandise plans are refreshed regularly and purchasing commitments are captured consistently. Retailers should establish a defined reporting calendar and align buyers, finance teams, and inventory planners around the same assumptions.

  • Update forecasts regularly: Refresh sales and inventory expectations as actual performance becomes available.
  • Track commitments: Include relevant outstanding orders so available purchasing capacity reflects existing commitments.
  • Segment the report: Analyze open-to-buy by category, department, location, channel, or season where useful.
  • Compare plan with actuals: Review actual sales, receipts, markdowns, and inventory against the original merchandise plan.
  • Coordinate purchasing and finance: Keep merchandise buying decisions aligned with budget and working-capital objectives.

Summary

An Open-to-Buy Report measures the purchasing capacity available within a merchandise plan after considering sales, markdowns, beginning inventory, and desired ending inventory. By connecting inventory planning with purchasing, ERP data, and financial controls, it helps retailers manage merchandise investment, support buying decisions, and maintain disciplined working-capital planning.