Should I do extraction and graft even when implants won't be for another year due to costs?

The best option is placing implants immediately with extractions if possible and also placement of bone grafts in can be done at that session so that you may not need additional operations by this way.But if implant is not going to be placed at this session, using a bonr graft material like bovine can help us to save the bone against resportion for a longer time like 6 to 12 months