On May 5, 2017, the IRS published the 2018 limits for HSA contributions and qualified High Deductible Health Plans (HDHP):

Self-Only Coverage Family Coverage
2017 2018 2017 2018
HSA Maximum Contribution: $3,400 $3,450 $6,750 $6,900
HDHP Minimum Deductible: $1,300 $1,350 $2,600 $2,700
HDHP Maximum Out Of Pocket: $6,550 $6,650 $13,100 $13,300