Upper Darby Township to Philadelphia
Pennsylvania Act 32 local earned income tax · DELAWARE to PHILADELPHIA County · tax year 2026
Home rate
1%
Upper Darby Township, residents
Work rate
3.43%
Philadelphia, non-residents
You pay
3.43%
the higher of the two
Cost of the commute
$1,458
a year, above the home rate
What this commute costs you
workplace governsPhiladelphia charges commuters more than Upper Darby Township charges its own residents, so the work rate wins the greater-of test and the difference is real money. You pay the solid bar only — Pennsylvania charges the higher of the two rates, never their sum. Local earned income tax only; state, federal and payroll tax apply on top.
What this commute actually costs
- Where you work costs more than where you live here. Upper Darby Township charges residents about 1%. Philadelphia charges non-residents about 3.43%. You pay the higher one. That is $2,058 a year, or $1,458 more than working at home would cost.
- Upper Darby Township sends more workers to Philadelphia than any other place tracked here: 8,666 of them, across 94 routes in the data. It is the main feeder for this workplace.
- Roughly 8,666 workers go from Upper Darby Township to Philadelphia each day. That is a lot of households facing one rate question. Hence a page of its own.
- On the Upper Darby Township to Philadelphia commute the work location governs. Upper Darby Township's resident rate is about 1% and Philadelphia's non-resident rate is about 3.43%; Pennsylvania's greater-of test therefore fixes the effective rate at about 3.43%. At the reference salary that is $2,058, of which $1,458 is attributable to the workplace. The residence collects its own rate and the excess is remitted to the work location.
- The Upper Darby Township to Philadelphia flow is the largest of 94 recorded, at 8,666 workers. That makes the local tax treatment described here the modal experience for people working in Philadelphia rather than an edge case.
- Approximately 8,666 employees commute from Upper Darby Township to Philadelphia. Flows of this size are why the greater-of rule matters in aggregate: the per-worker difference may be modest, but it is replicated across a large and stable population.
Where the money goes
A $75,000 salary
- Federal income tax$7,670
- Social Security and Medicare$5,738
- State income tax$2,303
- Yours$59,290
| Federal income tax10.23% | $7,670 |
|---|---|
| Social Security and Medicare7.65% | $5,738 |
| State income tax3.07% | $2,303 |
| Yours79.05% | $59,290 |
The arithmetic, side by side
| If you worked in Upper Darby Township | $600 |
|---|---|
| Working in Philadelphia | $2,058 |
| Difference | $1,458 |
On a reference salary of $60,000 a year. The local tax is flat, so every figure scales with your own pay.
What this page does not cover
- A common worry, answered. You do not pay Upper Darby Township and Philadelphia both. Only one rate applies, the higher of the two. The two councils then sort out between themselves who gets what, and your bill is unaffected.
- Everything here is the local earned income tax and nothing else. State income tax applies on top, as do federal tax and Social Security. None of those change when you cross a municipal line between Upper Darby Township and Philadelphia. This page is about the layer that does.
- The dollar figures use a flat reference salary of sixty thousand a year. That is a benchmark, not an average for Upper Darby Township. No wage data exists for single municipalities, and inventing one would be worse. Scale the numbers to your own pay. The rate for the Philadelphia commute is what matters, and it does not change with income.
- A postal address in Upper Darby Township does not prove which municipality taxes you. Boundaries and postcodes disagree often enough here that the state publishes a lookup. Philadelphia is a special case too. Its wage tax sits outside the rules that govern Philadelphia.
- Workers commuting from Upper Darby Township to Philadelphia are subject to one rate, not two. The statute directs the employer to withhold the greater of the resident and non-resident rates; the allocation between the two taxing bodies is a remittance mechanic invisible to the employee. Treating the two rates as cumulative is the most common misreading of the statute.
- Figures cover the local earned income tax exclusively. Pennsylvania's flat state income tax, federal income tax and FICA apply in addition and are invariant to the Upper Darby Township–Philadelphia municipal boundary, which is precisely why they are excluded: isolating the layer that responds to the commute is the point of the comparison.
- Dollar amounts are computed against a stated reference salary rather than a municipal wage average, which does not exist for Pennsylvania municipalities in any published source. Because the local tax is flat, the rate is invariant to income and the figures scale linearly — the Upper Darby Township to Philadelphia differential doubles at twice the salary and halves at half of it.
- Municipal taxing jurisdiction is determined by boundary rather than by postal address, and the two diverge frequently enough in Pennsylvania that the DCED lookup should be treated as authoritative for Upper Darby Township. Philadelphia is additionally outside this regime, administering its own wage tax on residents and non-residents under separate authority, so it does not follow the treatment described for Philadelphia.
Questions people ask
Do I pay local tax twice — once where I work and once where I live?
The rates compete rather than stack. about 1% where you live, about 3.43% where you work, and you pay the greater of the two.
What does crossing this boundary actually cost me?
$1,458 a year more than if you worked where you live. It is not a commuting charge and it buys you nothing — it is what falls out of two jurisdictions both having a claim and only one of them yielding.
Which town's rate am I actually paying?
Philadelphia sets it here. Its non-resident rate exceeds your home rate, so that is what is withheld.
Is this a common enough commute to be worth modeling?
Yes — 8,666 people make this exact journey, according to the federal employment survey that tracks where workers live against where they work. Routes below a volume floor are not published, so a page existing here means the commute is real and measured.
How does Pennsylvania's local earned income tax law allocate liability between two districts?
Pennsylvania's local earned income tax law assigns the higher of the residence rate (about 1%) and the non-resident work rate (about 3.43%); liabilities are never summed. The employer withholds at the governing rate and remits through the work district's collector, which then distributes to the residence district.
What is the marginal local tax cost of this commute?
Marginal annual liability attributable to working outside the residence jurisdiction is $1,458 at the reference salary. This is a tax cost rather than a commuting expense and is not deductible as one. It scales with income and with the rate differential, not with distance traveled.
Which district's rate governs on this route?
The work district's non-resident rate exceeds the residence rate and therefore governs. Withholding occurs at that rate, and distribution between the two districts happens after collection without further employee liability.
What is the basis for including this route?
Route volume is 8,666 workers, sourced from Census LODES origin-destination data. Pairs below the publication threshold are excluded rather than imputed, so page existence reflects measured commuting volume.