Pennsylvania Sales Tax and Invoicing Rules for 2026

State sales tax rate

Pennsylvania levies a 6% statewide sales and use tax. Two local additions exist: Philadelphia adds 2% (total 8%) and Allegheny County (Pittsburgh area) adds 1% (total 7%).

No other county or municipality may impose additional sales tax. This makes Pennsylvania simpler than many states — outside of Philadelphia and Allegheny County, the rate is a flat 6% statewide.

Pennsylvania uses destination-based sourcing for determining which local rate applies.

Nexus rules

Physical nexus is established by offices, employees, warehouses, or inventory in Pennsylvania.

Economic nexus applies if you exceed $100,000 in gross sales to Pennsylvania buyers in the current calendar year. There is no transaction count threshold.

Pennsylvania was among the early adopters of economic nexus provisions post-Wayfair. Marketplace facilitators must collect and remit tax on third-party sales. Affiliate and click-through nexus provisions also apply.

Invoice requirements

The Pennsylvania Department of Revenue expects sellers to maintain records that support every transaction. Invoices should show:

• Seller's name, address, and sales tax license number
• Date of sale
• Buyer details
• Itemized description of goods or services
• Taxable and exempt amounts clearly separated
• Tax rate, tax collected, and total

Because Pennsylvania exempts many common categories (clothing, food), properly categorizing items on invoices is critical. Keep exemption certificates (REV-1220 for resale) and maintain records for at least four years.

Exemptions and special cases

Most clothing is exempt in Pennsylvania — no tax on everyday apparel. Groceries (unprepared food and beverages) are exempt. Prescription drugs and most nonprescription drugs are exempt. Textbooks are exempt.

Residential utilities (gas, electricity, fuel oil) are exempt. However, restaurant meals, prepared food, and candy/gum are taxable.

SaaS is generally taxable in Pennsylvania — the state treats canned software, including cloud-based delivery, as taxable. Custom software and certain digital goods have nuanced treatment. Computer services like hardware maintenance are also taxable.

Filing frequency and deadlines

Filing frequency is assigned based on tax liability:

• Monthly — liability over $600/quarter
• Quarterly — liability between $225 and $600/quarter
• Semi-annual — liability under $225/quarter but over $75/semi-annual
• Annual — liability under $75/semi-annual

Monthly returns are due the 20th of the following month. Quarterly returns are due April 20, July 20, October 20, and January 20.

Pennsylvania offers a 1% vendor discount (capped at $25 per filing) for timely filing and payment.

Penalties for non-compliance

Late filing incurs a penalty of 5% of the unpaid tax per month, up to 25%. Underpayment interest accrues at the rate set by the Department of Revenue.

Failure to register when required results in back-assessment of taxes plus penalties. The Department conducts audits with particular focus on proper exemption documentation — sellers who fail to collect exemption certificates face liability for uncollected tax.

FAQ

Is all clothing exempt in Pennsylvania?

Most everyday clothing is exempt, but certain items are taxable: formal wear rentals, fur clothing, sporting equipment (cleats, pads), and accessories like jewelry and handbags. The exemption covers shirts, pants, dresses, coats, shoes, and similar apparel.

Is SaaS taxable in Pennsylvania?

Yes. Pennsylvania taxes canned software regardless of delivery method, including cloud-based access. If you sell SaaS to Pennsylvania customers, you must collect sales tax. Custom software designed for a single customer may be exempt — the distinction matters.

Do I need to charge the Philadelphia 2% surtax for deliveries to Philadelphia?

Yes. If goods are delivered to a Philadelphia address, charge the full 8% combined rate (6% state + 2% Philadelphia). The destination of delivery determines whether the local surtax applies.

Verify rates for any Pennsylvania address with InvoiceQuickly's tax rate lookup.

Step-by-step: register and start collecting in Pennsylvania

1. Determine if you have nexus — physical presence (any office, employee, or inventory in PA) creates immediate nexus. Without physical presence, watch your gross sales to PA buyers; cross $100,000 in a calendar year and economic nexus triggers.
2. Register with the PA Department of Revenue — apply through PA-100 enterprise registration online. Most sellers receive a sales tax license within 7–10 business days; there's no fee.
3. Configure invoice software — set the base 6% rate plus auto-detect for Philadelphia (+2%) and Allegheny County (+1%) by ZIP. Test invoices to a Philly ZIP before going live; the most common error is missing the 2% local add-on.
4. Set up exemption certificate intake — for B2B resellers, collect form REV-1220. Don't ship before receiving a valid certificate. Pennsylvania holds the seller liable for uncollected tax when documentation is missing.
5. File on schedule — first return is due based on assigned frequency (typically quarterly for new accounts). File via myPATH (Pennsylvania's online portal). Claim the 1% vendor discount (capped at $25) only on timely filings.

Real Pennsylvania compliance situations

• A Pittsburgh-based e-commerce store crossed $100K in PA sales mid-year selling to buyers statewide. They registered, switched to destination-based tax in their cart, and discovered they needed to charge the 1% Allegheny add-on for buyers in Pittsburgh — caught in audit prep, not at launch.
• A Philadelphia restaurant caters to corporate clients across the metro. Prepared food is taxable at 8% within Philly but only 6% just over the city line in Bala Cynwyd. They built ZIP-based logic into their POS to charge the right rate per delivery address.
• A SaaS company in Allentown assumed software wasn't taxable; the PA DoR audit caught two years of uncollected tax on PA customers. They paid back-tax plus penalties, then implemented SaaS taxability across all PA invoices going forward.

More Pennsylvania FAQs

Are professional services taxable in Pennsylvania? Most are not. Legal, accounting, consulting, and similar services are exempt. However, certain enumerated services (lobbying, employment agencies, secretarial, building cleaning, lawn care, self-storage) are taxable — check Title 61 PA Code if in doubt.

Do I owe Philadelphia's 2% on services performed in Philly? For taxable services delivered or used in Philadelphia, yes. The 8% combined rate applies. The seller's location doesn't determine the local rate — delivery destination does.

How does PA treat shipping charges on invoices? Shipping is taxable when the underlying item is taxable; if the item is exempt, shipping is exempt. List shipping as a separate line; lump-sum invoices that combine taxable and exempt items with shipping must allocate proportionally.

Can I get a refund of PA sales tax I paid in error? Yes — file Form REV-65 (Petition for Refund) within 3 years of payment. You'll need the original invoice, proof of payment, and reason for refund (often: paid tax on an exempt purchase or paid tax on an item you resold).