Executive Summary
The 2020 tax year was entirely dominated by the tax management of the pandemic crisis. **Total tax revenues** fell **2.4%** to **€193.2 billion**, a moderate contraction given the scale of the GDP collapse, thanks to the maintenance of labour income taxation through the ERTE mechanism. The **public deficit** widened to **-11% of GDP**, a level not seen since the 2009-2012 financial crisis.
At BMC, the tax department lived a year of crisis management: tax deferrals, payment moratoriums, adaptation of reporting obligations and advisory on the tax implications of COVID aid measures and subsidies.
Key Highlights
Tax payment deferrals were the most widely used fiscal measure by businesses and self-employed. The AEAT granted over 1.2 million deferrals under the special COVID conditions, with reduced or zero interest rates for smaller debts. Managing the deferral calendar, tracking instalment due dates and planning cash flows around deferral repayments was one of the central tax advisory tasks of the year.
ICO guarantee lines, exceeding €120 billion mobilised, made the ICO the most relevant economic policy instrument of the crisis. The tax treatment of guarantee fees, the interest deductibility and the implications for the calculation of the Corporation Tax base required careful analysis in each case.
The suspension of administrative time limits during the first state of emergency generated uncertainty about prescription periods, appeals and tax audit timescales. The AEAT progressively clarified the computation of time limits, though litigation on these issues extended into subsequent years.
Analysis by Tax Category
VAT: VAT revenues fell significantly as a direct consequence of the collapse in consumption and economic activity. The temporary VAT exemption on face masks and personal protective equipment was one of the most high-profile measures.
Corporation Tax: Losses generated in 2020 created substantial negative tax bases for many companies. Planning the carryforward of these losses against future profits — subject to the 70% limitation of the positive tax base — became a central element of medium-term tax planning.
Personal Income Tax: The proliferation of payers (employers plus SEPE for ERTE payments) created filing obligations for workers historically below the threshold. The 2020 income tax campaign was the most complex in terms of managing incidents in many years.
Wealth Tax: The debate about extending the Wealth Tax and creating a new large fortunes levy began to take shape on the political agenda. The 100% bonus applied by certain autonomous communities (including Madrid) generated a debate about inter-regional tax harmonisation.
Regulatory Changes
Royal Decree 1/2021 of 12 January (technically in 2021, but covering 2020) introduced Corporation Tax modifications. COVID legislation developed in a fragmented manner throughout the year, with over thirty Royal Decree-laws modifying various tax aspects.
Tax planning services in 2020 required constant updating in the face of the continuous flow of regulatory changes, an unprecedented challenge for tax advisory teams.
Outlook
The fiscal horizon for 2021 included the normalisation of reporting obligations, the maturity of COVID deferrals, and the debate on increased taxation of high incomes and large fortunes.
Our tax compliance and planning team accompanied clients through one of the most fiscally complex years in recent history, ensuring compliance in an environment of continuous regulatory change.
