The tancament de caixes ("closing of the cashboxes") was a tax strike in the period of July to November 1899 in Barcelona by merchants and industrialists against tax hikes put in place by the Francisco Silvela cabinet and his minister of the Treasury, Raimundo Fernández Villaverde in order to pay for the expenses of the Spanish–American War.
The protest consisted of shutting down business and industrial establishments as a form of hartal which allowed them to stop paying tax without it being illegal.
[1] The shutting of the cashboxes was caused by the colonial crisis of 1898, which led the Spanish government to impose some restrictive budgets along with an increase in taxation to compensate for the deficit.
That created a feeling of having been betrayed among the Catalan bourgeoisie, as they had fought alongside the dynastic parties.
The protest extended to Sabadell, Mataró, Manresa and Villafranca del Penedes, and some business-owners were arrested for not paying taxes.