The IRS has revealed that its level of service to U.S. taxpayers is expected to decline due to a combination of factors – increased workloads and cuts to the agency’s 2015 budget.

The increased workloads are partly associated with new tax issues related to the Affordable Care Act. The budget cuts will impact how the IRS is able to respond to customer service telephone and written inquiries. Also notable: the budget cuts could result in taxpayers experiencing delays in receiving their refunds.

On top of all this is the expectation that the IRS will have fewer resources to conduct audits, thus resulting in less revenue collection. IRS Commissioner John Koskinen says the decreased service levels are “unacceptable” and looks forward to finding a resolution