Wolters Kluwer Tax & Accounting US and Marcum LLP have released a pair of year-end tax-planning guides.

Wolters Kluwer’s 2015 Year-End Tax Planning Guide highlights the key changes taxpayers should know before 2016 arrives. The guide provides information on year-end planning for both individuals and businesses, including the impact of the Affordable Care Act, tax extenders and the Supreme Court’s same-sex marriage rulings.

Separately, the accounting and advisory firm Marcum LLP has released its 2015 Marcum Year-End Tax Guide.

This year’s tax guide includes 20 chapters covering a wide range of topics, from year-end tax planning for businesses and compliance for U.S. taxpayers with foreign operations, to transfer pricing guidelines and retirement planning for Millennials.