Cash pooling is a bank service that allows corporates to externalise the intra-group cash management, and thus manage their global liquidity effectively with lower costs. Although there is little quantitative information on the significance of the phenomenon, cash pooling appears to have become increasingly popular after the onset of the financial crisis when, in an environment characterised by limited access to capital markets, reduced bank lending, low returns and higher risks on banks' deposits, corporate groups started to maximise their use of internal sources of financing. In particular, cash pooling is currently very relevant in Western and Northern European countries, and is mainly offered in the United Kingdom, France and the Netherlands. This paper first analyses cash pooling agreements with a focus on the aspects that are relevant from a statistical viewpoint. It then addresses their statistical recording in compliance with ESA 2010 and, specifically, the methodological framework of Monetary Financial Institutions (MFI) balance sheet item statistics. It is proposed that positions related to cash pooling shall be recorded on a gross basis vis-à-vis the actual beneficiaries and obligors of the corresponding accounts. However, the proposed treatment goes beyond MFI balance sheet statistics and affects other data domains as well, ranging from financial accounts to balance of payments and international investment positions. While the statistical approach may seem straightforward, applying it in practice is more difficult, not least because of the treatment of cash pooling contracts in accounting terms. The analysis is complemented by numerical examples and also includes data for the Netherlands, which show the importance of clarifying the statistical treatment of cash pooling in light of the large impact it may have on macroeconomic aggregates.