Software Engineer Salary: London vs New York After Tax (2026)
London pays less gross than New York for software engineers — but UK tax rates are lower and rent is cheaper. After running the real numbers, the gap is much smaller than it looks.
The Headline Numbers
A mid-level software engineer in New York City typically earns around $130,000 gross. The equivalent in London — adjusting for cost of living — is roughly £56,000. On paper, the New York figure looks dramatically higher. But that comparison breaks down the moment you apply taxes.
After UK vs US Tax: The Real Comparison
The UK has a simpler tax system for employees: income tax (20% up to £50,270, then 40%) plus National Insurance at 8% up to the higher rate threshold. There's no city-level income tax. The US has federal income tax, Social Security + Medicare (FICA at 7.65%), and in New York City, both state and city income tax on top.
| London (£56K) | New York ($130K) | |
|---|---|---|
| Gross Salary | £56,000 | $130,000 |
| Tax + SS/NI Rate | 28.2% | 36.6% |
| Take-Home / Month (USD) | $4,450 | $6,868 |
| 1BR Rent | $2,500 | $3,500 |
| After-Rent / Month | $1,950 | $3,368 |
| Purchasing Power (COLI-adj) | $2,229 | $3,368 |
All figures in USD equivalent at Jan 2026 exchange rates. London COLI = 87.5, NYC COLI = 100.
The Verdict: New York Wins — But Not By as Much as You Think
New York delivers about 51% more purchasing power than the COLI-adjusted London equivalent. That's meaningful — but far less than the $74K gross difference suggests.
The gap closes significantly because:
- NYC's combined federal + state + city tax rate (36.6%) is nearly 10 points higher than London's effective rate (28.2%)
- London rent ($2,500/mo) is $1,000 less than NYC ($3,500/mo)
- London's COLI (87.5) means everyday costs are ~12% cheaper than NYC
When London Wins
The NYC advantage disappears if you're comparing against a higher London salary. A senior engineer in London earning £85,000+ or a principal/staff engineer at £110,000+ crosses into a different tax bracket, but so does their NYC counterpart at $180–250K. The lifestyle factors often tip the balance:
- Commute: London's tube coverage is significantly better than NYC's subway reliability
- Healthcare: NHS means zero out-of-pocket for most care (vs US employer insurance + deductibles)
- Holiday: UK statutory minimum is 28 days vs the US's 0-day legal minimum
- Proximity to Europe: Weekend flights to 30+ countries from £30
When NYC Wins
If maximising raw take-home is the priority — particularly at senior/staff/principal levels where US total compensation (base + RSUs) routinely reaches $250–400K — NYC and SF pull far ahead. The UK's 45% top rate above £125,140 also creates a ceiling that US engineers at FAANG-level comp avoid by living in no-income-tax states (though NYC has city tax regardless).
How to Evaluate a Real Offer
Don't compare gross salaries. Run both through the same calculation: tax + social security → take-home → minus rent → COLI adjustment. That's your actual standard of living number.
Got offers in both cities? Compare them properly.
Our Offer Evaluator does the full calculation — tax, NI, rent, purchasing power — side by side.
Run the London vs NYC Comparison →