An Invoice (isodoc.cls)
\documentclass{isodoc}
\setupdocument
{
language={en-GB},
company={University of Somewhere},
who={Mr Big Head},
street={Academic Lane},
city={Some City},
zip={AB3 4YZ},
country={United Kingdom},
countrycode={GB},
areacode={44},
cityzip,
date=2014-03-01,
subject=Sample Project,
currency={\pounds}
}
\begin{document}
\invoice
[
ourref=1234,
to={Miss Polly Parrot\\42 The Lane\\Some Town\\Noshire AB1 2XY}
]
{%
\itable
{%
\iitem{Proof-reading}{300.00}
\iitem{Train Fare}{43.95}
\itotal{342.95}
}
\\[3ex]\accountdata
}
\end{document}
Download isodoc-sample2.tex or isodoc-sample2.pdf.