Tax compliance and tax advisory services are essential for businesses to ensure that they are compliant with tax laws and regulations, and to optimize their tax positions. Tax compliance services involve the preparation and filing of tax returns, while tax advisory services involve providing strategic advice on tax matters.

Tax compliance services typically include the following:

• Preparation and filing of tax returns: This involves preparing and filing income tax returns, sales tax returns, payroll tax returns, and other tax-related filings.
• Record keeping: This involves maintaining accurate financial records and ensuring that all tax-related information is properly documented.
• Tax audit representation: This involves representing the company in the event of a tax audit, and working with tax authorities to resolve any issues.

Tax advisory services, on the other hand, include the following:

• Tax planning: This involves analyzing the company's financial information and identifying tax-saving opportunities, such as deductions, credits, and deferrals.
• International tax planning: This involves advising companies on cross-border transactions, and ensuring compliance with international tax laws and regulations.
• Mergers and acquisitions: This involves advising companies on the tax implications of mergers and acquisitions, and developing tax-efficient structures for these transactions.
• Tax risk management: This involves identifying and managing tax risks, such as non-compliance, tax disputes, and penalties.

Overall, tax compliance and tax advisory services are essential for businesses to ensure that they are compliant with tax laws and regulations, and to optimize their tax positions. Outsourcing these services to a tax professional or tax firm can provide businesses with the expertise and support they need to manage their tax obligations and minimize their tax liabilities.