Lower Merion Township Business Privilege and Mercantile Tax: Registration and Returns

If your business operates in Lower Merion Township, you will deal with the township's Business Privilege Tax (BPT) and Mercantile Tax. This is one of the largest grandfathered BPT and mercantile levies in Pennsylvania, with more than $10 million collected in 2018. Many owners search for a lower merion business license expecting a single permit, then find a tax registration, an annual return and separate rules for food and zoning. This guide covers the registration and return process in the order you will need it.

Pennsylvania has no state general business license and no county business licenses. For most owners, the township registration is the local tax filing to handle first. Whether any other township permit applies depends on your activity, so confirm that with the township before you open.

What You Need Before You Start

• Your exact legal business name and entity type, matching your filing with the Pennsylvania Department of State. You can search existing records at file.dos.pa.gov.
• Your federal Employer Identification Number (EIN) and any existing Pennsylvania tax account information.
• The street address of every location in the township, plus any separate mailing address you use.
• A plain description of what you sell or do, so you can tell whether your income is mercantile or non-mercantile.
• Prior-year gross receipts pulled from your accounting software or bank records and reconciled to your sales tax filings.
• A bank account and payment method for online payment through the PA LITE portal.
• If you prepare or serve food, your Montgomery County Office of Public Health food licensing paperwork or application status.

Steps to Register With the Township

1. Confirm the address is inside the township. The township covers Ardmore, Bala Cynwyd, Bryn Mawr, Gladwyne, Penn Valley and Wynnewood addresses located within Lower Merion. Narberth Borough is a separate municipality with its own rules. Postal names can mislead, so check the municipality of the physical location, not just the mailing city. Ardmore and Bryn Mawr addresses are a common source of confusion.
2. Classify your income. The Mercantile Tax is 1 mill ($1.00 per $1,000 of gross receipts) and applies to retail, wholesale and restaurant businesses. The Business Privilege Tax is 1.5 mills ($1.50 per $1,000) and applies to services and other non-mercantile activity. If your business has both types of activity, ask the Finance Department in writing how each stream should be reported before you file your first return.
3. Register with the Finance Department Business Tax Division within 30 days. New businesses must register with the Business Tax Division within 30 days of starting business in the township. The annual license and registration fee is $20. Renewals are invoiced each December, so watch for that bill and pay it on time.
4. Set up your state tax account on myPATH. The PA-100 was retired in 2022, and state tax registration now happens on myPATH. Start at the Department of Revenue's register my business for taxes page. This is a separate step from the township registration, so do not assume one covers the other.
5. Save your registration confirmation. Keep the township confirmation and your renewal invoice history in the same folder as your formation documents. You will need the account details when you file each year.

Steps to File the Annual Return

1. Calculate tax on prior-year gross receipts. The return is based on the gross receipts from the previous year, not the current year. For illustration only, a retail business with $400,000 in prior-year gross receipts would owe $400 at the 1 mill mercantile rate. A service business with the same receipts would owe $600 at the 1.5 mill BPT rate. Confirm your actual figures with the Finance Department before you pay.
2. Mark April 15 on your calendar. The annual return and payment are due April 15.
3. Decide early whether you need an extension. An extension requested by April 15 with at least 80% of the tax paid moves the return deadline to October 15. It does not move the payment date. If you cannot pay in full, pay at least 80% by April 15 to qualify, then pay the balance as soon as you can.
4. File and pay online through PA LITE. The return and payment are both handled online through the PA LITE portal. Print or save the confirmation page for your records.
5. Account for interest on late payments. Late payments accrue 1.5% interest per month. Interest adds up quickly on a large balance, so a missed deadline is worth fixing the same day it is discovered.

Tips That Save Time

• Reconcile gross receipts monthly. Pulling a full year of sales in March is where most filing errors start.
• Set reminders for the 30-day registration window, the December renewal invoice, April 15 and October 15 if you extend.
• Ask the Finance Department to confirm your mercantile or BPT classification in writing. A written answer protects you if a question comes up later.
• If your revenue comes from both sales and services, keep separate ledger codes so your numbers are easy to split.

Common Mistakes to Avoid

• Treating the two taxes as one. The Mercantile Tax (1 mill) and the BPT (1.5 mills) use different rates. Misclassifying income is one of the most common errors.
• Missing the 30-day registration window. The window starts when you begin business in the township, not when you first earn a profit.
• Assuming a mailing address decides jurisdiction. A Narberth or Bryn Mawr mailing address does not automatically place a business in the same municipality as its work location.
• Confusing the township registration with state registration. myPATH handles state tax accounts. The township registration is a separate filing.
• Believing an extension delays payment. The October 15 date applies to the return only. Payment is still due April 15.
• Ignoring the December invoice. Renewal invoices arrive each December. An unpaid renewal is still a compliance problem even if your return was filed.

What a Successful Filing Should Look Like

When registration and returns are handled carefully, you should end up with a township registration on file, a return that matches your prior-year gross receipts, and a payment confirmation from PA LITE for each year. Filing on time and classifying income correctly may reduce the chance of interest charges and follow-up questions from the township. Results depend on your activity and records, and the township's determination is what controls.

Zoning, Food Licensing and Earned Income Tax Are Separate

Lower Merion zoning rules control where and how a business may operate, and they are handled apart from the tax filing. Check the township zoning requirements for your address before you sign a lease, especially for home-based or customer-facing work. If you prepare or serve food, Montgomery County Office of Public Health food licensing applies in addition to the township tax. If you have employees, earned income tax is handled through Berkheimer, which serves as the Montgomery County Act 32 collector. Confirm your registration and withholding obligations directly with Berkheimer.

Where to Confirm Current Requirements

• Lower Merion Township Finance Department, Business Tax Division, for registration, classification and return questions
• Lower Merion Township zoning office for use and location questions
• Montgomery County Office of Public Health for food licensing
• Berkheimer for earned income tax registration and withholding
• Pennsylvania Department of Revenue at pa.gov/agencies/revenue for state tax questions

Disclaimer: This article is informational content, not legal or tax advice. Rates, deadlines and procedures can change, so confirm current figures with the township before you file. Confirm current requirements with the agencies listed above before you act. For complex situations, including multiple locations, mixed mercantile and service income, or entity structure questions, consult a qualified attorney or certified public accountant.