General retail POS systems (Square, Toast). They cannot handle VIN-specific cost layers or 5-year property depreciation.
A common point of confusion is the "placed in service" date. Regardless of whether you bought the trailer in January or December, the MACRS system usually applies a "half-year convention." This means that regardless of the purchase date, the IRS assumes you owned the asset for half the year for the first and last year of its depreciation life. Travel Trailers Accounting Answers
For business owners, this is the "Golden Ticket." General retail POS systems (Square, Toast)
If you use the trailer 100 days per year (50 business rental, 50 personal): General retail POS systems (Square