Unfinanced operating after-tax cash flow (ATCF) calculator

After-tax operating cash flow is calculated as BTCF × (1−τ) + Dep × τ. Use the stated system boundary and matching input units.

\mathrm{ATCF} = \mathrm{BTCF} \times \left(1 - \tau\right) + \text{Dep} \times \tau

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

Given

\mathrm{ATCF} = 40{,}000 \times \left(1 - 0.25\right) + 15{,}000 \times 0.25 = 33{,}750

Symbol	Meaning	Unit
$\mathrm{ATCF}$	after-tax operating cash flow	$/year
$\mathrm{BTCF}$	before-tax operating cash flow	$/year
$\text{Dep}$	deductible depreciation	$/year
$\tau$	income-tax fraction	—

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.