Compilations are great for those who just need a financial statement with a CPA’s signature on them, generally done at a lower fee than a review which is more involved. A compilation involves an accounting service in which an accountant prepares financial statements without expressing any assurance that the statements are accurate and complete or in conformity with Generally Accepted Accounting Principles. An accountant generally performs few, if any, procedures, and it is substantially less than a review service report.