\documentclass{ltsaskaita}
\usepackage{hologo}
\newcommand\cs[1]{\texttt{\textbackslash #1}}
\setlength{\parskip}{4pt}
\begin{document}
\begin{center}
{\Large\bfseries The ltsaskaita class}\par\vspace{2mm}
Invoices in Lithuanian, version 1.0, 2026-11-09\par
Justas Arbatauskis
\end{center}

\section*{What it does}
The class typesets a Lithuanian invoice (\emph{sąskaita faktūra}). It adds up the lines, works out the VAT, and writes the total in words with the correct grammatical forms. It works with pdf\LaTeX, Xe\LaTeX\ and Lua\LaTeX.

The class does not give tax advice. Ask an accountant which details your invoices must show.

\section*{Use}
\begin{verbatim}
\documentclass[pvm]{ltsaskaita}
\serija{KS}
\numeris{0042}
\israsyta{2026 m. lapkričio 9 d.}
\terminas{2026 m. lapkričio 23 d.}
\pardavejas{UAB „Pavyzdys“\\Įmonės kodas 123456789}
\pirkejas{MB „Bandymas“\\Įmonės kodas 987654321}
\begin{document}
\preke{Svetainės kūrimas}{1}{vnt.}{1000.00}
\preke{Svetainės priežiūra}{12}{mėn.}{49.00}
\saskaita
\end{document}
\end{verbatim}

\section*{Commands}
\begin{description}
\item[\cs{preke}\{name\}\{quantity\}\{unit\}\{price\}] adds a line. Write numbers with a decimal point.
\item[\cs{saskaita}] prints the invoice. Call it after the last \cs{preke}.
\item[\cs{serija}, \cs{numeris}, \cs{israsyta}, \cs{terminas}, \cs{pastaba}] set the series, number, date, payment date and a note.
\item[\cs{pardavejas}, \cs{pirkejas}] set the seller and buyer. Separate the lines with \verb|\\|.
\item[\cs{pvmtarifas}\{rate\}] sets the VAT rate in per cent. The default is 21.
\item[\cs{skaiciuszodziais}\{number\}] prints a whole number in words, up to 999\,999\,999.
\item[\cs{sumazodziais}\{cents\}] prints an amount in euros and cents, given in cents.
\end{description}
The class option \texttt{pvm} prints the VAT lines and the title \emph{PVM sąskaita faktūra}. Without it, the invoice has no VAT lines.

\section*{Numbers in words}
\begin{tabular}{r l}
1 & \skaiciuszodziais{1} \\
21 & \skaiciuszodziais{21} \\
112 & \skaiciuszodziais{112} \\
1\,001 & \skaiciuszodziais{1001} \\
21\,000 & \skaiciuszodziais{21000} \\
1\,250\,000 & \skaiciuszodziais{1250000} \\
\end{tabular}

\sumazodziais{192148}\par
\sumazodziais{1100}\par
\sumazodziais{200}\par

\section*{Licence and links}
LaTeX Project Public License 1.3c. Source and issues: \texttt{github.com/ello-lithuania/latex-lietuviskai}. Home page: \texttt{kokybiskasvetaine.lt}.
\end{document}