According to Section 109 (1) of the Local Government Act (GemO), the state capital of Mainz must prepare consolidated financial statements if, at the end of a fiscal year and at the end of the previous fiscal year, at least one subsidiary organization of the municipality is under the controlling or significant influence of the municipality.

According to Art. 8 § 15 KomDoppikLG, the first consolidated financial statements are to be prepared as of December 31, 2015. The requirements of § 109 (1) GemO are met by the state capital of Mainz, so that consolidated financial statements had to be prepared for the first time for the 2015 fiscal year.

The audit committee and the audit office of the state capital of Mainz have the task and authority to carry out local audits in accordance with Sections 112 and 113 GemO.

The Audit Committee determines the result of its audit by resolution in accordance with Sections 110 (2), 112 (1), (4), (7) and 113 (3), (5) GemO. As with the annual financial statements, the consolidated financial statements must also present the actual circumstances of the municipality's assets, financial position and results of operations.

In addition to the consolidated financial statements, the municipality must include its annual financial statements and the annual financial statements

a) of the special funds for which separate accounts are kept,
b) of the companies and institutions with their own legal personality (except for savings banks in which the municipality has a stake),
c) of the municipal foundations with legal capacity,
d) of the special-purpose associations of which the municipality is a member, except for special-purpose associations that exclusively hold stakes in savings banks,
e) of the other legally independent task carriers with

commercial accounting or accounting in accordance with municipal accounting regulations, whose financial basis is essentially secured by the municipality due to legal obligations, must be summarized (Section 109 (4) GemO). There is no consolidation with savings banks and savings bank special-purpose associations.

The consolidated financial statements consist of
a) the consolidated income statement,
b) the consolidated cash flow statement,
c) the consolidated balance sheet, and
d) the consolidated notes.
The following must be attached to the consolidated financial statements as appendices:
a) the consolidated accountability report,
b) the overview of assets, and
c) the overview of receivables.