How to Track Inventory

Why Does Inventory Tracking Matter for a Warehouse?

Good inventory tracking protects cash, orders, and trust. Here is what a clean count gives you:

Reviewed November 2026.

• Fewer stockouts, so fewer late orders.
• Less cash stuck in slow stock on the shelf.
• Fewer wrong shipments and fewer angry calls.
• Cleaner accounting software numbers at month end.

The IRS agrees the count matters. IRS Publication 538 says, "To figure taxable income, you must value your inventory at the beginning and end of each tax year." GS1 sets the barcode rules many scanners follow, and it says its barcode standards give each product a unique identity. A true count is not a nice extra.

How Do You Track Inventory Step by Step?

You track inventory in 6 steps: list items, give each a SKU, set locations, record every move, count often, and review the numbers.

1. List every item you hold, including pallets, cases, and loose parts.
2. Give each item one unique SKU.
3. Set a named location for each item.
4. Record every receipt, move, and shipment.
5. Count stock on a set schedule.
6. Review the numbers each month and fix gaps.

The next sections cover steps 2 to 5 in detail. Skip none of them.

Step 1: Give Every Item a Unique SKU

A SKU is a short code for one exact item. Blue, large, 12-pack gets its own code. Blue, large, 24-pack gets another.

• Keep codes short and in one pattern, such as TEE-BLU-L-12.
• Split size, color, and pack size into parts.
• Never reuse a code for a new item.
• Never give one item two codes.

One item with one code means one clean count.

Step 2: Label Locations in Your Warehouse

Good warehouse inventory work starts with bin locations: a bin is a labeled box or shelf slot. Name each aisle, shelf, and bin, such as A-03-2. Write the location next to each SKU. Then pickers read the pick sheet and walk straight to the item.

Set aside separate areas for these:

• Receiving, for goods not yet counted.
• Returns, for goods waiting on a check.
• Damaged stock, so no one ships it by mistake.

A labeled shelf ends the hunt for lost stock.

Step 3: Record Every Receipt, Move, and Shipment

Most errors come from skipped or late entries. A worker moves 4 pallets and plans to log them later. Later never comes. Now the sheet is wrong, and the next picker walks to an empty slot. Tight records also help you ship on time, which the FTC mail order rule expects.

Log stock when it arrives, when it moves, and when it ships. Do it at the moment of the action, not at the end of the day. Match each receipt to a buy order. Match each shipment to a sales order.

Step 4: Count Stock on a Schedule

A cycle count is a small count of one section, done on a set day. You do not shut down for a full count. Count one aisle each week and cover the whole building over time.

Count fast-moving and high-value items more often. Count slow items less often. How often should you count? Weekly for top sellers and monthly or quarterly for the rest works for most teams.

When counts differ from the books, find the cause. A wrong label or a missed receipt is common. Fix that, not just the number.

What Tools Can You Use to Track Inventory?

You can use 5 kinds of tools, and the right one matches your size. Each has a place.

• Paper sheets suit a tiny stockroom with a few items.
• An inventory spreadsheet suits low volume and one site.
• Accounting software inventory features track cost and stock value.
• Barcode scanning removes typing and cuts receiving errors.
• Custom software fits work that standard tools do not.

Pick the simplest tool that still keeps your counts true. A small team with 40 items does not need a big system. A team with 4,000 items and 3 shelves of overflow does.

Can You Track Inventory in a Spreadsheet Program or Accounting Software?

Yes, both work for low volume and one location. If you ship a few orders a day, a clean sheet is enough. If you want to know how to keep track of inventory small business style, start there.

The limits show up as you grow:

• Staff type every entry by hand.
• Copies of the file drift apart.
• Neither shows live bin locations.
• Notes spill into email and printed sheets.

Your accounting software is strong on the money side. It tracks cost, sales, and stock value. It is thinner on warehouse detail like aisles and pick paths. Be fair to both tools: they fail only when the work outgrows them.

Signs Your Inventory Tracking System Is Breaking Down

Your inventory tracking system is failing when staff work around it. Watch for these signs:

• Counts never match the books.
• Staff keep their own private sheets.
• Orders ship late because no one can find stock.
• Only 1 person knows how the spreadsheet works.
• Returns and damaged goods sit in no list.
• Several people edit one file and overwrite each other.

Two or more signs mean the tool, not the people, is the problem.

When Does Custom Software Make Sense for Inventory Management?

Custom software fits when your way of working does not match what off-the-shelf tools expect. Maybe you sell by the pallet and ship by the case. Maybe you have odd pick rules.

Custom inventory management gets built around how your team already works. Staff do not relearn everything. Your accounting software stays in place for accounting. The custom tool replaces only the manual parts, such as typed entries and printed sheets. It works at small scale and needs no huge ERP project.

The Software Society team in Columbus, Ohio builds this kind of workflow for lean teams. We start with how you run today.

Common Inventory Tracking Mistakes to Avoid

Five mistakes cause most bad counts. Avoid them and the numbers hold.

• Waiting to log items until later.
• Using unclear or duplicate SKUs.
• Skipping counts when work gets busy.
• Letting many people edit one sheet.
• Ignoring returns and damaged goods.

A small habit, kept daily, beats a big system used badly.

Ready to stop chasing lost stock? Talk to The Software Society about a review of your current process.

Frequently asked questions