About WriteOff Desk

Why it exists

Equipment deductions are time-sensitive and the rules around limits and placed-in-service dates are easy to misread. This tool estimates the tax saving from a purchase and reminds you of the dates that matter.

WriteOff Desk is a free, independent web tool. Section 179 & bonus depreciation savings.

We build small, fast tools that run entirely in your browser: no sign-up, no data uploads. The site is funded by advertising and an optional ad-free premium plan.

Accuracy

We work hard to keep formulas and reference data up to date, and every guide shows when it was last updated. Results are estimates; always double-check important decisions with a qualified professional.