this article is a very good one on this subject in terms of record keeping
The only thing the article omits is the IRS requirement that if you want to use the standard rate then you must elect to use that standard rate in the first year […]
Resolution for 'commuting miles issue: 'No way to mark commuting miles' available: Yes.
The commuting miles issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the commuting miles issue yourself by looking for a resolution described in the article. If it is a complex commuting miles issue or you are unable to solve the issue, you may contact us by clicking here or by using other commuting miles support options.
For more information about resolving issues related to commuting miles in Quickbooks/QBO or to get support for the issue 'No way to mark commuting miles', click the link below: