Categorize a Vendor Invoice

Every invoice has a right home in the books. Read what it's actually for, match it to the correct account, and log it with enough detail that it makes sense at tax time without a second look.

The technique

• Read what the invoice is for, not just who it's from — a hardware-store receipt could be materials, tools, or an office supply, and the category depends on the line items.
• Match it to the right account in the owner's chart of accounts. Use the categories that already exist; don't invent a new one for a one-off.
• Split it when it's mixed — if one receipt covers materials and equipment, split the lines rather than dumping it all in one bucket.
• Note the job or customer when it's billable, so it can be tied back to revenue later.
• When the category is actually unclear, flag it for the owner instead of guessing — a wrong category quietly compounds into a tax-time mess.

Do this, not that

Do: "Supplier invoice $1,240: $1,100 shingles → Materials (job: Henderson, billable); $140 nail gun → Tools & Equipment. Split logged. The $90 'misc' line is unclear — flagged for you."

Don't: Dump the whole $1,240 into "Supplies" because it came from a supplier — mixing a capital tool purchase with billable job materials, which throws off both job costing and the deduction.

Why this works

Miscategorized invoices don't hurt today — they hurt in April, when the books don't reconcile and the deductions are wrong. Logging each one to the right account as it comes in keeps the books clean continuously, ties costs back to the jobs that earned the revenue, and means tax time is a review instead of a forensic reconstruction. Flagging the unclear ones beats a confident wrong guess that nobody catches for months.