Zovo Depreciation Schedule

Depreciation calculator and MACRS schedules with PDF and Excel downloads.

Zovo Depreciation Schedule is a depreciation calculator for ChatGPT and Claude. Small-business owners, landlords and bookkeepers describe an asset (or paste a fixed-asset list) and get a year-by-year depreciation schedule with accumulated depreciation and book value, rounded to the cent. It supports straight-line with salvage value and a partial first year, 200% and 150% declining balance with the switch to straight-line, sum-of-the-years' digits, units of production, and US MACRS GDS using the IRS Publication 946 percentage tables, including the mid-quarter convention and the mid-month tables for 27.5-year residential rental and 39-year nonresidential real property. Each schedule downloads as a PDF, an Excel workbook and a CSV.

What it does

Straight-line with salvage value and a first year prorated by months in service
200% and 150% declining balance with the switch to straight-line, and sum-of-the-years' digits
Units of production from estimated lifetime units and units used each year
MACRS GDS from IRS Pub 946 Tables A-1 to A-5 (3, 5, 7, 10, 15, 20-year) and A-6 / A-7a (27.5 and 39-year)
Several assets at once from a list, pasted CSV or an Excel file, with totals by year and the 40% mid-quarter test
Rounded to the cent each year; the last year absorbs rounding so the total equals basis minus salvage
PDF schedule, Excel workbook and CSV downloads, plus a book value chart

Try asking

“Depreciation schedule for a $25,000 delivery van, 5 years, $3,000 salvage, placed in service March 2026”

“MACRS depreciation for a rental house: building basis $275,000, placed in service June 2026”

“Double declining balance on $48,000 of machinery over 8 years with $4,000 salvage”

Limitations

Informational only and not tax advice
Section 179 expensing and bonus depreciation are not modeled
MACRS ADS (alternative depreciation system), short tax years, fiscal years other than the calendar year, and dispositions are not modeled
The 40% mid-quarter test is applied only across the assets sent in one request

Add it

ChatGPT: once Zovo Depreciation Schedule is approved, add it from the ChatGPT plugin directory.

Claude: go to Customize > Connectors > Add custom connector and enter https://depreciation.zovo.one/mcp. No sign-in is needed. Once Zovo Depreciation Schedule is listed in the Claude connector directory, you can add it from there too.

Other MCP clients can connect to the same endpoint: https://depreciation.zovo.one/mcp