Home/Compare/United Kingdom vs Mexico · $100,000#CMP-12873
ParametersFromUnited KingdomToMexicoGross$100,000FilingSinglePeriodFY 2026
Residency model
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§ 01 · The verdict

United Kingdom leaves you with $1,186 more per year — a 1.7% net advantage over Mexico on a $100,000 gross.

The gap is driven by the headline tax structure — no special regime applied. Both countries are indicated in USD at the displayed FX.

Net delta · annual
+$1,186
in favour of United Kingdom
Monthly
+$99
Over 5 yrs
+$5,929
Rate gap
1.2 pp
Confidence
High
GB·LondonGBP → USD @ 1.2658

United Kingdom

Standard tax (no special regime)
Effective tax rate
29.2%
on $100,000 gross
Net take-home
$70,815
$5,901 / month
Statutory deductionsUSD
Personal income tax
progressive · top 45%
$24,091
Social security
8.0% employee · capped
$5,094
Total deductions$29,185
Gross income$100,000
Net take-home$70,815
MX·Mexico CityMXN → USD @ 0.0513

Mexico

Standard tax (no special regime)
Effective tax rate
30.4%
on $100,000 gross
Net take-home
$69,629
$5,802 / month
Statutory deductionsUSD
Personal income tax
progressive · top 35%
$26,271
Social security
4.1% employee · uncapped
$4,100
Total deductions$30,371
Gross income$100,000
Net take-home$69,629
§ 02 · Where the paycheck goes

Flow of $100,000.

Width of each segment is its share of gross. NET segment is what crosses the finish line into the user's account.
United Kingdom29.2% effective
$0 → $100,000
PIT · $24,091
NET · $70,815
Mexico30.4% effective
$0 → $100,000
PIT · $26,271
NET · $69,629
Income tax (PIT)Social chargeNet take-home
Δ net+$1,186·1.7% advantage UN
§ 03 · Full ledger

Line-item reconciliation.

All amounts USD · FY2026
InstrumentUnited Kingdom · USDMexico · USDΔ (MX − GB)
I. Personal income tax
Personal income tax
GBprogressive · top 45%MXprogressive · top 35%
$24,091$26,271+$2,179
subtotal · personal income tax$24,091$26,271+$2,179
II. Mandatory social security & health
NI Class 1: 8% on £242-£967/wk; 2% above (cap modeled at primary upper earnings limit).
GB8.0% · capped £50,300MX4.1% · uncapped
$5,094$4,100−$994
subtotal · mandatory social security & health$5,094$4,100−$994
Total deductions$29,185$30,371+$1,186
Effective rate29.2%30.4%1.2 pp
Gross income$100,000$100,000
Net take-home$70,815$69,629−$1,186
Table 1 · Statutory deductions, single-filer remote worker, FY2026 indicative. All amounts in USD. n/a where instrument does not apply.
§ 04 · Cost-of-living adjusted · secondary

And once the paycheck has to buy something.

We treat this section as secondary — the tax model is precise; the price model is a survey instrument with wider error bars.
PPP basis · NYC = 100United KingdomMexicoΔ
Cost-of-living index
Indicative · placeholder until COL table ships
78.040.0-38.0 pts
Nominal net (annual)
From the engine — exact
$70,815$69,629−$1,186
Real net · Mexico basket$36,315$69,629+$33,314
Real purchasing power · annual
Net take-home, re-expressed in Mexico-basket dollars.
United Kingdom
$36,315
nominal $70,815
Mexico
$69,629
nominal $69,629
Real delta · annual
+$33,314
a 91.7% advantage to Mexico once basket prices are normalised.
Indicative only — wider error bars than the tax model.
§ 05 · Methodology & sources

How this comparison was built.

Every line above can be traced to a primary instrument. We publish the model; you may toggle its parameters.

Read the full note ↗
United Kingdom · source instruments
  • Personal income tax code · brackets 2026
  • Social-insurance contribution schedule 2026
  • FIG (Foreign Income and Gains) · New 4-year regime for arrivals from April 2025 (non-dom reg…
Mexico · source instruments
  • Personal income tax code · brackets 2026
  • Social-insurance contribution schedule 2026
  • RESICO (Simplified Regime) · Self-employed individuals with revenue ≤ MXN 3.5M; national…
Model assumptions
  • 01.Single filer, no dependents. Joint and head-of-household calculations not yet modeled.
  • 02.Income treated as employment, not self-employed unless explicitly set.
  • 03.Special regimes assumed eligible where the headline criteria fit; otherwise the standard schedule applies.
  • 04.FX held constant at the displayed static rate across the period.
  • 05.No equity, RSU, capital gains, or carried interest.
  • 06.No treaty offsets applied — see HOME model for the US-resident case.
  • 07.Filing status assumed Single. Joint and head-of-household calculations not yet modeled.
  • 08.Tax year 2026 with 2025 transitional rates where applicable.
Last refreshed · Thu, 21 May 2026 14:04:37 GMT
Engine v0.1.0
Confidence · Verify (GB), High (MX)
Disclaimer — Comparely publishes modelled estimates for informational purposes and does not constitute legal, tax, accounting, or immigration advice. Statutory rates, social-charge ceilings, FX, and elective regimes change. Eligibility for any special regime is subject to qualifying conditions beyond income alone. Consult a qualified adviser before acting on any figure displayed.