Answer: netgain

AnswerCrossword Clue
NETGAIN

Bottom line

NETGAIN

Taxable amount ... and a hint to the four longest puzzle answers

NETGAIN

Tax return calculation

NETGAIN
Figure in black
NETGAIN
Profit.
NETGAINProfit after costs
NETGAINProfit
NETGAINBottom line figure
NETGAINOverall profit
NETGAINFinal profit