Finance
As the NDL belongs to the Diet, its annual revenues and expenditures are in the national budget. The total amount of the initial budget appropriated for NDL is approximately 19,498 million yen for FY2011 beginning in April 2011, excluding the funds for construction outlay.
Approximately 2,414 million yen is allocated for library materials as follows:
| Purchases of library materials | 870 million yen |
| Compensations for publications deposit | 390 million yen |
| Purchases of scientific/technical materials | 1,093 million yen |
| Purchases of materials for legislation | 61 million yen |
