Philadelphia, PA Bookkeeping Services — BIRT-Smart Books

Philadelphia runs the most layered city tax system most small-business owners will ever meet — BIRT on both your receipts and your profits, a Net Profits Tax on top for unincorporated businesses, a wage tax on every payroll, and a monthly use & occupancy bill for anyone occupying commercial space. And the rules just changed in a way every owner needs to hear: the BIRT’s $100,000 gross-receipts exemption is gone as of tax year 2025, which pulls thousands of previously exempt small businesses into filing. We have kept Philadelphia books remotely since 2005 — dedicated bookkeepers from $75/month who keep every one of those layers reconciled and tax-ready.

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On This Page

• Running the numbers in Philadelphia
• BIRT: the $100K exemption is gone — everyone files now
• Net Profits Tax: the second layer
• Wage tax: what to withhold from July 1, 2026
• Use & occupancy: the monthly bill on your space
• Philadelphia tax cheat sheet
• A Philadelphia compliance calendar worth keeping
• What we handle for Philadelphia businesses
• Philadelphia FAQs

Running the Numbers in Philadelphia

“Eds and meds” anchor this city: Penn, Jefferson, Temple, and CHOP are the largest employers, and healthcare and social assistance account for roughly a third of Philadelphia’s employment. Around that anchor sits a growing cell-and-gene-therapy cluster — including Spark’s 500,000-square-foot center coming online in 2026 — plus professional services, finance, hospitality, and logistics. What that mix means for bookkeeping: medical and therapy practices tracking collections across payers, university-adjacent vendors and research suppliers juggling institutional payment cycles, restaurants and hospitality operators managing tip payrolls and thin margins, and consultancies whose owners face the Net Profits Tax personally. Every one of them shares the same city compliance stack — and since tax year 2025, every one of them files BIRT.

BIRT: The $100K Exemption Is Gone — Everyone Files Now

The Business Income & Receipts Tax is Philadelphia’s signature levy, and it taxes you twice over: for tax year 2025 (filed by April 15, 2026), the rates are 1.410 mills (0.1410%) on gross receipts plus 5.71% on net income. Both parts apply — a business can lose money and still owe the gross-receipts portion, which is why revenue recognition and clean books matter here in a way they don’t in most cities.

The change that headlines everything else: the $100,000 gross-receipts exemption was eliminated for tax year 2025 following a Uniformity Clause challenge. For years, businesses with under $100K in Philadelphia receipts owed nothing and — after their first filings — didn’t even have to file. That era is over. Every business with Philadelphia activity now files BIRT, no matter how small. If you stayed under $100K and haven’t filed for the past three years, the city treats you as a “new business” for this transition — meaning no estimated payment is required with your first 2025 return. That is genuine breathing room, but only for owners whose books can actually produce a defensible receipts and net-income number by April 15.

There is long-term relief in the law, too: under Bill 250199, BIRT rates fall annually on a legislated glide path, with the gross-receipts portion reaching zero and the net-income rate reaching 2.8% by FY2039. Because the rates now change every year, always label BIRT math with its tax year — the numbers above are TY2025, and next year’s return will use different ones.

One prerequisite worth checking today: the Commercial Activity License. It is free, it is required for anyone doing business in Philadelphia, and it is what links your entity to its BIRT account. Newly-filing small businesses often discover they never obtained one — get it squared away before the filing deadline, not during it.

Net Profits Tax: The Second Layer

If your business is a sole proprietorship, partnership, or LLC taxed as either, Philadelphia adds the Net Profits Tax on top of BIRT: for tax year 2025, 3.74% for residents and 3.43% for non-residents, due April 15. Corporations are exempt from NPT — this is a tax on unincorporated business profits flowing to their owners. The saving grace is a coordination mechanism: you can take a credit for 60% of the BIRT net-income portion against your NPT, which keeps the two layers from fully stacking. Getting that credit right requires books where the BIRT net-income calculation is clean enough to hand your preparer — one more place where a reconciled ledger converts directly into dollars.

Wage Tax: What to Withhold from July 1, 2026

Anyone with employees in Philadelphia withholds the city wage tax every payroll. Effective July 1, 2026, the rates are 3.735% for Philadelphia residents and 3.425% for non-residents who work in the city. Note the date: Philadelphia adjusts wage-tax rates on a July 1 fiscal calendar, so a rate table pulled from an old bookmark is often a cut or two stale — payrolls run with 3.75%/3.44% are over-withholding under the current schedule. Mid-year rate changes also mean your payroll system needs a documented switchover, and your wage-tax liability account needs to reconcile across two rate periods in one calendar year. That is routine for us; it is a common source of quiet errors for owners running payroll themselves.

Use & Occupancy: The Monthly Bill on Your Space

Occupy commercial space in Philadelphia — owned or leased — and you likely owe the Use & Occupancy Tax: 1.21% of the assessed value of the space you use, remitted monthly by the 25th. Two things trip businesses up. First, the cadence: this is a monthly obligation, not an annual one, so it belongs in your recurring close checklist. Second, a recent change: the $2,000 annual exemption expired on December 31, 2025, so small occupants who previously saw their liability zeroed out now owe from the first dollar. If your monthly books show a U&O accrual that still assumes the exemption, 2026 remittances are coming up short.

Philadelphia Tax Cheat Sheet

Rates from Philadelphia Department of Revenue and Pennsylvania Department of Revenue official sources (July 2026). This is general information, not tax advice — BIRT rates change annually, so verify current-year figures with the Philadelphia Department of Revenue or your CPA before filing.

A Philadelphia Compliance Calendar Worth Keeping

Put the rhythm together and the year looks like this. Every payroll: withhold city wage tax at the current-period rate. Every month by the 25th: remit Use & Occupancy on your commercial space. April 15: BIRT and, for unincorporated businesses, the Net Profits Tax — the city’s big filing day. Then the state layer stacks on top: Pennsylvania’s new annual report is due June 30 for corporations, September 30 for LLCs, and December 31 for LPs and LLPs — a $7 filing that, beginning with the 2027 reports, carries administrative-dissolution consequences if missed. And because both the BIRT rates and the state’s corporate net income tax (7.49% for 2026) move annually on legislated schedules, every projection needs a tax-year label on it. None of these filings is difficult by itself; the failure mode is volume — one monthly, one per-payroll, and several annual obligations across two governments. Books that close every month make the whole calendar routine.

What We Handle for Philadelphia Businesses

The through-line in every service is BIRT-aware structure: because Philadelphia taxes gross receipts and net income separately, we keep revenue recognition clean and expenses categorized so both numbers fall out of your books without a year-end scramble. Practices in the eds-and-meds orbit get collections tracked by payer through our virtual bookkeeping service — daily transaction logging, monthly reconciliations, and statements your CPA can file from. Consultancies and unincorporated firms get books that make the NPT-to-BIRT credit computable instead of estimated. Employers get wage-tax liability accounts that reconcile across the July 1 rate change, and tenants get U&O accruals that reflect the post-exemption rules. Newly-filing under-$100K businesses — the owners the exemption’s elimination hits hardest — often arrive with years of informal records; catch-up bookkeeping rebuilds them into a defensible first BIRT return. And Philadelphia CPA firms hand us the bookkeeping layer at wholesale $10/hour while they keep the advisory work. See pricing for how plans scale.

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