12 Accounts payable
| In CHF million | 2021 | 2020 | ||
|---|---|---|---|---|
| Trade accounts payable – third parties | 919 | 768 | ||
| Trade accounts payable – associates | 9 | 15 | ||
| Social security | 51 | 51 | ||
| Indirect and capital taxes | 153 | 167 | ||
| Other payables | 92 | 91 | ||
| Total accounts payable | 1 224 | 1 092 | 
As of December 31, 2021, contractual commitments for future purchases of material or services amount to CHF 33 million (previous year: CHF 30 million).