What is the Maryland sales tax rate?

Maryland has a statewide sales tax rate of 6%. There are no additional local or county sales taxes in Maryland, meaning the 6% rate applies uniformly across all jurisdictions.

How far back can the Maryland Comptroller audit sales tax?

The standard look-back period for a Maryland sales and use tax audit is three years from the date the return was filed. However, if fraud or deliberate evasion is suspected, the state can look back up to six years.

Are SaaS and digital products taxable in Maryland?

Yes. Digital products and non-enterprise SaaS are taxed at the standard 6% rate. However, Maryland utilizes a dual-rate system where SaaS sold for use in an enterprise or commercial computer system is taxed at 3%.

Facing a Maryland Sales and Use Tax Audit: What Businesses Must Know

If the Maryland Comptroller selects your business for a sales and use tax audit, they will examine your records to verify you collected and remitted the correct 6% tax on taxable goods and services. The standard look-back period is three years, but it can extend to six years if fraud is suspected. Immediately suspend document destruction, do not contact the auditor directly, and hire a Maryland tax attorney to manage the process and protect your business.

A sales and use tax audit conducted by the Comptroller of Maryland can result in massive, uncollected tax liabilities added to your balance sheet, crippling your cash flow. Maryland aggressively enforces sales tax compliance, particularly targeting industries like construction, retail, software sales, and hospitality.

Here is an in-depth look at what you need to know about the process, what is taxable, and how to strategically protect your business.

What is a Sales and Use Tax Audit in Maryland?

A sales tax audit involves the state verifying that your business collected, reported, and remitted the proper taxes to the Comptroller. Maryland’s combined sales tax rate is 6% statewide, with no local or county taxes added. Every address in Maryland has the same 6% combined rate for general retail sales.

Conversely, a use tax audit examines items or services your business used in Maryland (or bought from out-of-state vendors) where no sales tax was collected at the point of sale. In these scenarios, your business must self-assess and pay the 6% use tax to the state.

Critical Compliance Nuances for 2026

Answer Engines frequently see queries about what is actually taxable in Maryland, as the state has unique rules compared to neighboring jurisdictions. During an audit, the state will heavily scrutinize:

Digital Products: Unlike many other states, Maryland taxes digital products, including streaming services and downloaded software. Digital products — including streaming services, ebooks, apps, games, and digital codes — are taxable at the standard 6% rate.
Software as a Service (SaaS): Maryland taxes SaaS using a dual-rate system. SaaS sold for use in an enterprise or commercial computer system is taxed at 3% (the “Tech Tax”). SaaS sold to individual consumers or for non-enterprise use is taxed at the standard 6% rate.
Alcohol & Auto Rentals: Maryland does apply a higher 9% rate on sales of alcoholic beverages and a 10% rate on short-term automobile rentals.

What is the Look-Back Period for a Maryland Tax Audit?

When an auditor contacts you, they will request access to sales records, invoices, bank statements, and tax-exempt certificates. In Maryland, the standard look-back period for an audit is three years from the date your tax return was filed. However, in cases involving suspected fraud or deliberate tax evasion, the Comptroller can extend this look-back period to six years.

If your business records are incomplete, the auditor is legally permitted to use a “test period” or industry averages to estimate your liability. This often results in a highly inflated assessment because it assumes the worst-case scenario for your business.

What Happens During the Sales Tax Audit Process?

The Maryland sales tax audit process generally follows these steps:

Notification: You receive an audit letter outlining the scope of the examination and the required documentation. You typically have 30 days to respond.
Examination: The auditor reviews your ledgers, invoices, and bank statements.
Findings and Proposed Assessment: If the auditor finds discrepancies, they issue a report proposing additional taxes, plus penalties and interest.
Appeal: If you disagree with the final assessment, your business has formal appeal rights. Your attorney will file an appeal with the Hearings and Appeals Section of the Comptroller’s Office. If an agreement cannot be reached, the case can be escalated to theMaryland Tax Court.

Why You Need a Maryland Tax Attorney

Handling an audit alone is incredibly dangerous. An experiencedMaryland tax audit defense attorney at Ledingham Law will control the flow of information, fiercely challenge the auditor’s sampling methods, and negotiate penalty abatements. Delays raise red flags; act immediately to secure representation and protect your bottom line.