Maryland tax penalties at a glance
When you file or pay Maryland taxes late, the Comptroller of Maryland adds a penalty and charges interest on the unpaid balance. These state penalties are assessed under Maryland law and are entirely separate from any federal IRS penalty on your federal return.
Source: Comptroller of Maryland (official guidance). Penalty caps and interest rates change — several states reset interest quarterly — so verify the current figure before relying on it.
Getting a Maryland penalty waived
The Comptroller may abate penalties for reasonable cause; requests are made to the Comptroller of Maryland. Verify the current late-filing rate and interest rate directly, as the Comptroller’s pages were mid-migration at research time.
Most people who owe a Maryland penalty also owe a federal IRS penalty — and the federal one is usually larger. The good news: federal penalties can often be removed entirely through first-time abatement or reasonable cause. That is the part our practice handles.
The federal side: IRS penalties & Form 843
The IRS does not assess penalties differently in Maryland than anywhere else — failure-to-file, failure-to-pay, and failure-to-deposit penalties are governed by federal law and apply uniformly nationwide. What changes by state is the IRS service center your case routes through. For Maryland, federal abatement requests are processed through the IRS service center in Philadelphia, PA.
The mechanism is the same everywhere: Form 843, mailed with substantiation. The legal grounds are first-time penalty abatement, reasonable cause, statutory exception, or administrative waiver. When abatement is granted, the IRS refunds the penalty and the interest it charged on that penalty.
What our practice does for Maryland taxpayers
We represent clients in all 50 states under IRS Circular 230 authorization. Because federal abatement is state-agnostic, location is rarely a constraint. For Maryland clients specifically, we pull your IRS transcripts (via Form 8821), confirm exactly which penalties were assessed and for which periods, route Form 843 to the Philadelphia, PA service center, and build the reasonable-cause substantiation. The work is contingency-based: if we do not recover, you do not pay.
Start with the calculator on this page — enter your name, email, and rough penalty and interest amounts. We return a refund estimate within one business day and, if you choose to proceed, send the Form 8821 authorization for signature.