State and Local Tax Deduction in North Carolina
North Carolina residents who itemize on their 2025 federal return can deduct up to $10,000 in qualifying state and local taxes through the federal SALT deduction. North Carolina has a flat state income tax rate in 2025, and county property taxes vary across the state, with rates in urban counties like Mecklenburg and Wake generally higher than rural areas. Many households in growing metro areas can approach the federal cap.
North Carolina conforms to federal itemized deduction rules on Form D-400, allowing state and local taxes deducted federally to also reduce North Carolina taxable income. North Carolina also permits a Pass-Through Entity tax election for eligible partnerships and S corporations, which can provide federal tax relief for business owners beyond the individual SALT cap.
To document the SALT deduction, North Carolina filers should retain year-end state income tax withholding statements, estimated payment records, county property tax notices, and Form 1098 from mortgage lenders. Taxpayers who made fourth-quarter estimated state tax payments in January 2026 for the 2025 tax year should note that only payments made by December 31, 2025 are deductible on the 2025 federal return.