Use this for big items you keep for years, like a van or machine.

Open Purchases and pick a Fixed asset account.

Period = month you start using it.

Total amount = what it cost.

Mark Paid in full if paid, or enter the paid part and pick the Vendor.

Unlike rent, the cost does not hit one month. NapkinLedger spreads it month by month as depreciation. Add a Reference and press Record it.