Portugal vs Spain

Spain is £937 cheaper in year 1 and £850 a year cheaper after that.

PortugalLdaSpainSociedad Limitada (SL)
Costs
Minimum, year 1£1,440£503
Minimum, per year after£1,130£280
Typical year 1£2,640£2,569
Government fee£310€360 Empresa na Hora£85From about €97 (name certificate, registry and BORME)
Indirect setup£130–1,030£138–1,415
Running per year£1,130–2,930£280–3,135
Share capital€1 per partner€1
Rules
DirectorsNo local directorYou need a tax number (NIF) and a tax representative.No local directorEvery foreign director and shareholder needs a tax ID (NIE).
Remote setupThrough a providerOnline only with a Portuguese digital ID. Otherwise in person or through a lawyer.Through a providerSign at a notary in Spain or by power of attorney. You also need a Spanish registered address.
AuditNo audit below size thresholdsNo audit below size thresholds
Time to form1 day to 2 weeks2 to 4 weeks
Ease for foreign owners3/52/5
Tax and banking
Corporation tax15% / 19%19%, or 15% on the first €50k for small companies, plus up to 1.5% municipal tax.19% / 25%25%. Companies with turnover under €1m pay 19% on the first €50k and 21% above. New companies pay 15% in their first two profitable years.
Dividend withholding25%25% dividend withholding, reduced by treaty.19% dividend withholding, 10% for UK residents.
VAT / GST23%21%
Banking2/5Local banks often want a visit.2/5You need a Spanish bank certificate for the capital deposit.
All company setup fees in PortugalAll company setup fees in Spain
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Questions

Is Portugal cheaper than Spain for company setup?

No. Spain is cheaper, at least £503 in year 1 against £1,440 for Portugal.

Which is cheaper to run each year?

Spain, at least £280 a year against £1,130 for Portugal.

Which needs a local director?

Neither. You can run a company in either without a local director.

Which is faster to set up?

Portugal, in 1 day to 2 weeks. Spain takes 2 to 4 weeks.

How does corporation tax compare?

Portugal: 19%, or 15% on the first €50k for small companies, plus up to 1.5% municipal tax. Spain: 25%. Companies with turnover under €1m pay 19% on the first €50k and 21% above. New companies pay 15% in their first two profitable years.

Sources: Portuguese Government · PwC · Legalitas · Ayuda T Pymes · Taxfix