Which has lower income tax, Bulgaria or Spain?

Bulgaria has the lower effective income tax on a $100k single-resident profile in 2026: Bulgaria ~13.8% vs Spain ~38.7% on the default schedule (before any special regimes).

What's the effective tax rate at $100k in Bulgaria vs Spain?

On the default progressive schedule, a $100k single resident pays an effective rate of ~13.8% in Bulgaria and ~38.7% in Spain for the 2026 tax year. Special regimes can lower these significantly.

How many days to become tax resident of Bulgaria vs Spain?

Bulgaria: 183+ days of physical presence. Spain: 183+ days of physical presence.

Does Bulgaria or Spain have a better special regime for expats?

Spain has a dedicated ICP regime (Beckham Law); Bulgaria has none currently modeled, so the default schedule applies there.

Does Bulgaria or Spain tax foreign income?

Bulgaria taxes residents on worldwide income. Spain taxes residents on worldwide income.

Which currency does Bulgaria vs Spain use?

Bulgaria uses BGN (лв); Spain uses EUR (€).

Home/Compare/Bulgaria vs Spain · $100,000#CMP-46646

ParametersFromBulgaria→ToSpainGross$100,000FilingSinglePeriodFY 2026

Residency model

Edit parameters →

§ 01 · The verdict

Bulgaria leaves you with $24,952 more per year — a 40.7% net advantage over Spain 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

+$24,952

in favour of Bulgaria

Monthly

+$2,079

Over 5 yrs

+$124,758

Rate gap

25.0 pp

Confidence

High

BG·SofiaBGN → USD @ 0.5556

Bulgaria

Standard tax (no special regime)

Effective tax rate

13.8%

on $100,000 gross

Net take-home

$86,206

$7,184 / month

Statutory deductionsUSD

Personal income tax progressive · top 10%	$10,000
Social security 13.8% employee · capped	$3,794
Total deductions	$13,794
Gross income	$100,000
Net take-home	$86,206

ES·MadridEUR → USD @ 1.0870

Spain

Standard tax (no special regime)

Effective tax rate

38.7%

on $100,000 gross

Net take-home

$61,254

$5,105 / month

Statutory deductionsUSD

Personal income tax progressive · top 47%	$32,396
Social security 6.3% employee · uncapped	$6,350
Total deductions	$38,746
Gross income	$100,000
Net take-home	$61,254

§ 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.

Bulgaria13.8% effective

$0 → $100,000

PIT · $10,000

NET · $86,206

Spain38.7% effective

$0 → $100,000

PIT · $32,396

NET · $61,254

Income tax (PIT)Social chargeNet take-home

Δ net+$24,952·40.7% advantage BU

§ 03 · Full ledger

Line-item reconciliation.

All amounts USD · FY2026

Instrument	Bulgaria · USD	Spain · USD	Δ (ES − BG)
I. Personal income tax
Personal income tax BGprogressive · top 10%ESprogressive · top 47%	$10,000	$32,396	+$22,396
subtotal · personal income tax	$10,000	$32,396	+$22,396
II. Mandatory social security & health
~13.78% (pension 8.78% + health 3.2% + others). Cap BGN 4,130/mo → annual BGN 49,560. BG13.8% · capped лв49,560ES6.3% · uncapped	$3,794	$6,350	+$2,556
subtotal · mandatory social security & health	$3,794	$6,350	+$2,556
Total deductions	$13,794	$38,746	+$24,952
Effective rate	13.8%	38.7%	25.0 pp
Gross income	$100,000	$100,000	—
Net take-home	$86,206	$61,254	−$24,952
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 = 100	Bulgaria	Spain	Δ
Cost-of-living index Indicative · placeholder until COL table ships	42.0	60.0	+18.0 pts
Nominal net (annual) From the engine — exact	$86,206	$61,254	−$24,952
Real net · Spain basket	$123,151	$61,254	−$61,897

Real purchasing power · annual

Net take-home, re-expressed in Spain-basket dollars.

Bulgaria

$123,151

nominal $86,206

Spain

$61,254

nominal $61,254

Real delta · annual

+$61,897

a 101.0% advantage to Bulgaria 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 ↗

Bulgaria · source instruments

Personal income tax code · brackets 2026
Social-insurance contribution schedule 2026
No special regimes recorded for this jurisdiction.

Spain · source instruments

Personal income tax code · brackets 2026
Social-insurance contribution schedule 2026
Beckham Law · Not Spanish tax resident in prior 5 years + move to Spain f…

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 14:04:39 GMT

Engine v0.1.0

Confidence · High (BG), High (ES)

Cite this comparison ↗

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.

§ 06 · Related pairs

Other jurisdictions worth a glance.

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