They are not exactly the same. The job descriptions are practically identical—both are tax auditors and the task of both is to verify that the person or firm being audited has declared their income and tax payments correctly.
The difference lies in this:
- Taxeringsrevision is tax auditing relating to income tax.
- Skatterevision is tax auditing relating to other taxes and charges, such as value-added tax, social security contributions, withholding taxes, etc.
The job titles as used probably reflect this, but I haven’t tried to verify that.